1. Basic concepts

What is tax residence and why is it the keystone of the Spanish system?

It is the connecting factor that determines whether an individual is taxed in Spain on worldwide income (personal obligation) or only on Spanish-source income (real obligation). It also conditions the Net Wealth Tax (IP), the Temporary Solidarity Tax on Large Wealth (ITSGF), the Inheritance and Gift Tax (ISD) and the attribution of competence to the Autonomous Community for ceded taxes.

What for years was treated as essentially a doctrinal matter has shifted, in recent years, into the litigation plane. The international mobility of HNWIs, the pull of preferential tax regimes in nearby jurisdictions and the consolidation of international remote work have steadily raised the litigation rate and made tax residence one of the most sensitive focuses of Spanish tax inspection.

Who determines whether I am a Spanish tax resident?

The Spanish Tax Agency (AEAT). Tax residence operates by direct application of article 9 of the Personal Income Tax Act 35/2006, of 28 November (LIRPF). There is no prior formal “grant” of residence: the taxpayer attracts —or loses— it by meeting or not meeting the legal criteria in each tax period.

Effective control normally arises at the inspection stage, when the AEAT compares the taxpayer’s filing with the material indicators of presence, expenditure, economic and family ties.

Is tax residence computed by calendar year or rolling periods?

By calendar year. The 183-day criterion, the economic-centre criterion and the family presumption all refer to the complete calendar year. There is no partial residence: the taxpayer is either a Spanish tax resident for the entire year, or not at all.

As a consequence, residence changes that take place mid-year affect the complete year of change and require careful analysis of which of the two States involved ends up being the State of tax residence for Spanish IRPF purposes.

Are “tax residence”, “fiscal domicile” and “municipal census registration” the same?

No. They are three distinct planes.

Tax residence attributes liability to the Spanish IRPF by personal obligation and follows article 9 LIRPF.

Fiscal domicile is the place where the taxpayer is located for procedural relations with the AEAT —notifications, inspection competence—.

Municipal census registration is a local administrative register, with no direct tax effect. At the inspection stage it is one indicator among others, neither conclusive nor decisive when material signs contradict it.

2. The three criteria of article 9 LIRPF

What criteria pull tax residence to Spain?

Article 9.1 LIRPF sets out three criteria, operating alternatively: meeting any one suffices.

(i) Stay of more than 183 days in Spanish territory during the calendar year.

(ii) Main centre or base of economic activities or interests in Spain, directly or indirectly.

(iii) Family presumption: habitual residence in Spain of the non-legally-separated spouse and the minor dependent children. This presumption admits evidence to the contrary and is subsidiary to the previous two criteria.

Note that any one of the three suffices to attract residence. Defence, therefore, requires disabling all three.

If I am a Spanish national living abroad, does article 9 still reach me?

Yes. Article 9 LIRPF applies to any individual, regardless of nationality. Spanish nationality does not automatically pull tax residence to Spain; foreign nationality does not repel it. That said, article 8.2 LIRPF contains a specific rule for Spanish nationals moving to a tax haven, addressed in its own block below.

3. The 183-day criterion

How exactly are the 183 days counted?

Article 9.1.a) LIRPF provides that an individual is considered resident when staying for more than 183 days, during the calendar year, in Spanish territory. The AEAT and the TEAC’s doctrine have distinguished three types of days, in Resolutions of 28/03/2023 (RG 04045/2020) and 25/04/2023 (RG 04812/2020):

(i) Certified-presence days: days where presence in Spain is established by direct documentary evidence —passports, entry stamps, card payment receipts, appointments, medical visits—.

(ii) Presumed days: intermediate days between two certified presences, within a reasonable consecutive count. The TEAC’s criterion is that intermediate days may be imputed as presence where the verisimilitude of uninterrupted stay is high.

(iii) Sporadic absences: temporary departures from Spanish territory which, under article 9.1.a) LIRPF itself, count as presence in Spain unless the taxpayer establishes tax residence in another country. Supreme Court rulings on the ICEX scholarships, starting with the judgments of 28/11/2017, have refined the concept: short, occasional absences —not prearranged— and definable by objective data.

Does partial presence count as a full day?

Administrative doctrine has accepted it. TEAC Resolution of 28/03/2023 uses the formula “physical presence during any moment of the day”. For counting purposes, partial presence suffices. The operational consequence is relevant: the arrival day and the departure day both count, unless a purely airport-side transit without entry to the territory can be established.

And sporadic absences? How is the automatic count rebutted?

Article 9.1.a) LIRPF shifts the burden to the taxpayer: sporadic absences count as presence in Spain unless the taxpayer establishes tax residence in another country. Establishing it is done, primarily, with a certificate of tax residence “for purposes of the DTT” issued by the destination State. Without that certificate, sporadic absences add to Spanish stay.

The line of case law on the ICEX scholarships qualified the rule: short, occasional, non-prearranged stays abroad may fall outside the count if justified as punctual absences without intent to remain. But the inverse pattern —prolonged, structural stay, with full life mounted in another country— requires the certificate.

Do stays for humanitarian or cultural reasons count?

No. Article 9.1.a) LIRPF expressly excludes from the count “temporary stays in Spain resulting from obligations under cultural or humanitarian cooperation agreements, on a gratuitous basis, with the Spanish Public Administrations”. It is a narrow exception and rarely applicable, but worth mentioning to complete the picture.

4. The main centre of economic activities or interests

What is this criterion about?

Article 9.1.b) LIRPF attributes tax residence when “the main centre or base of activities or economic interests is located in Spain, directly or indirectly”. It is the most complex of the three criteria, because it combines quantitative elements —income flow, asset value— with qualitative ones: the place of management and administration, the nature of investments.

What is the current case law on the matter?

The so-called eclectic doctrine, consolidated by the Supreme Court series of July 2024 —four rulings in less than a month—: STS 1214/2024, of 08/07/2024 (rec. 1909/2023); STS 1236/2024, of 09/07/2024; STS 1392/2024, of 22/07/2024 (rec. 7744/2022); and STS 1393/2024, of 22/07/2024.

The Supreme Court establishes the criterion: the determination of the main centre of economic interests is not reduced to the income flow of the year (pure rentier thesis), nor to absolute asset value (pure patrimonialist thesis). It is a factual assessment, not subject to cassation, which weighs both elements together with qualitative factors: the place of management and administration of the assets, the productive or passive nature of the assets, the geographical origin of the income, and the documentary coherence of the economic activity.

How is it distinguished from the “centre of vital interests” of the DTT?

It is worth not confusing them. The main centre of economic interests of article 9.1.b) LIRPF is a strictly economic criterion. The centre of vital interests of article 4.2.a) of the OECD Model Convention, by contrast, is a mixed concept that weighs personal and economic integration jointly: family ties, social bonds, occupation, place from which assets are administered.

The Supreme Court has refined this on several occasions, including the classic case law of 05/12/2005 and 04/06/2006. The operational consequence is important: a taxpayer with assets managed from Spain but with family core and personal life abroad may be a Spanish tax resident under 9.1.b) and, simultaneously, a treaty resident in the other State by the centre-of-vital-interests rule.

Can the AEAT use the payor’s location as an indicator of the economic centre?

Yes, but as one indicator among others. The TEAC doctrine —Resolutions of 22/02/2021, 24/05/2022, 19/12/2022, and the consolidation reached in March and April 2023— accepts the place of management and administration as a qualitative factor of weight. It is one of the criteria the Administration cross-references with spending patterns, real-estate ownership and banking activity. The operational consequence is relevant: a taxpayer who claims an economic centre outside Spain must be able to document where investment and administrative decisions are effectively taken.

A typical comparison case: relocation to the UAE with income split between the two countries.

The DGT analysed this scenario in binding consultation V-2558-25, of 18/12/2025. A taxpayer who relocated to the United Arab Emirates for employment reasons in April 2025, with 150 days of presence in Spain and income of EUR 50,000 from work in Spain plus EUR 70,000 from work in the UAE. He kept an empty property in Spain —his former habitual residence— and was a tenant in Dubai.

The 9.1.a) criterion does not reach him —fewer than 183 days in Spain—. Nor does the absence count as sporadic, since the taxpayer establishes residence in another State and the absence is prolonged. But the question of the economic centre remains open. More foreign income than Spanish (70 against 50) does not by itself resolve the criterion: the DGT expressly defers the factual assessment of the activity centre to the AEAT’s management and inspection bodies. Documentary planning, once again, is what closes the case.

5. The family presumption (art. 9.1 in fine LIRPF)

What does the presumption consist of?

The last sentence of article 9.1 LIRPF provides that “it shall be presumed, unless evidence to the contrary, that the taxpayer has habitual residence in Spanish territory when, in accordance with the previous criteria, the non-legally-separated spouse and the dependent minor children habitually reside in Spain”.

It is an iuris tantum presumption —rebuttable—. Its technical function is to pull the taxpayer’s residence to Spain when the two preceding criteria —183 days and economic centre— do not allow it, but the family core does reside here.

Is it a principal or subsidiary criterion?

Subsidiary. The presumption operates “in accordance with the previous criteria”, which the majority view reads as activation only when the criteria of 9.1.a) and 9.1.b) do not by themselves pull residence. When either of the first two is met, the presumption is redundant. When neither is met, the presumption is the last safety net.

How is the presumption rebutted?

By evidence to the contrary, under the general rule of article 386 of the Civil Procedure Act. Doctrine has consolidated two main routes:

(i) Establishing the taxpayer’s own habitual tax residence in another country, by certificate issued for purposes of the DTT by the residence State, along the lines of STS 778/2023, of 12/06/2023, consolidated by STS 971/2025, of 15/07/2025.

(ii) Establishing the non-existence in Spain of the taxpayer’s economic centre, with an evidential file ruling out the place of asset management, the ownership of productive assets and the pattern of economic flows.

In defence practice, the two routes combine: foreign certificate plus a coherent economic-asset evidential file. A paradigmatic case is that of a taxpayer whose spouse and children moved to Spain as a supervening event —for security, schooling or change of personal project— while the taxpayer kept his or her working and economic life abroad, the typical scenario in which the presumption is dismantled.

And if only my spouse remains in Spain but the children are already adults?

The presumption of article 9.1 in fine requires the concurrence of two elements: non-legally-separated spouse and minor dependent children. The conjunction is cumulative; if the children have reached the age of majority or are no longer dependent, the presumption is not activated by their mere residence in Spain, although it continues to be activated by the spouse’s.

The DGT applied this in binding consultation V-1270-25, of 10/07/2025: a Brazilian retiree, Spanish tax resident since 2018, planning to move to Brazil leaving his wife and his 21-year-old student daughter in Spain. The DGT confirms that the presumption may be activated in his case —the wife remains as non-legally-separated spouse—; but recalls that it admits evidence to the contrary and that the final determination of the economic centre belongs to the AEAT. The adult daughter, by contrast, does not contribute to activating the presumption.

What about a family unit with one member resident in another EU or EEA State?

It is a more frequent scenario than it seems. The DGT addressed it in binding consultation V-0347-24, of 12/03/2024: a Spanish-resident consultant married to a Spanish national who has been a French tax resident since 1993 (university professor with a home and ordinary life in Limoges). The consultant kept her working and asset life in Spain.

The consultation confirms two operational points. First, in these scenarios each spouse is taxed separately according to his or her own tax residence: she as a Spanish IRPF taxpayer, he as an IRNR taxpayer if there is Spanish-source income. Second, the forty-eighth additional provision of the LIRPF provides for a specific deduction for family units made up of IRPF taxpayers and residents in another EU or EEA State with effective information exchange, which equates the position fiscally to that which they would have if they could file jointly.

6. Burden and assessment of evidence

Who bears the burden of proof on tax residence?

The general rule of article 105.1 of the General Tax Act 58/2003 (LGT) places the burden of proving the facts constituting one’s right on the party invoking them. In matters of tax residence, the TEAC and the Supreme Court apply the so-called proximity-to-evidence theory: the burden falls on whoever is in the best position to bear it.

In practice, this translates into a dynamic distribution. The Tax Administration gathers and contributes objective indicators —bank movements, notarial records, census registration, utilities, flights, card data—. The taxpayer must rebut the indicator set with counter-evidence: foreign certificate, lease agreements abroad, schooling of children in another State, returns filed outside Spain, healthcare ties, social ties.

What weight do the presumptions of article 108.2 LGT carry?

Article 108.2 LGT allows the Administration to deduce, from established facts, the presumptions it deems reasonable provided that there is a precise and direct nexus between the base fact and the presumed fact under the rules of human reasoning. In tax residence matters, these presumptions are built on the spending pattern, the effective use of real-estate ownership, and local banking activity. The assessment is conjoint: the AEAT does not rely on an isolated indicator but on a coherent indicator set.

How far can the Administration go with indicators?

Quite far. The STSJ of the Canary Islands of 20/12/2024 (Rec. 227/2024) upheld the determination of autonomous tax residence by multiple concordant indicators. In the case at issue, the AEAT established residence in the Canary Islands against the registered domicile in Madrid through: 253 days of card consumption in the Canary Islands against roughly one-third in Madrid; sixteen notarial visits in Las Palmas in 2017 and thirteen in 2018, coinciding with same-day consumption; the statement of the Madrid property’s doorman confirming non-effective residence; IP returns for 2019 and 2020 filed late already showing a Canary Islands domicile.

The judgment is relevant on two counts. The first, substantive: it confirms that material signs prevail over formal declarations —registered domicile, returns— when the economic reality diverges. The second, procedural: the massive cross-referencing of consumption data will be reinforced in 2027 with the first filing of Form 174 on card operations (annual reporting return regulated by Order HFP/823/2024).

7. International conflicts and the DTT tie-breaker rules

What happens if two States consider me a tax resident at the same time?

It is the dual residence scenario. When Spain and another State with which there is a double-taxation treaty (DTT) each consider, under their own domestic law, the taxpayer to be a tax resident, the conflict is resolved by applying the tie-breaker rules of article 4.2 of the OECD Model Convention, transposed into each bilateral DTT.

The rules operate in cascade, successively. The taxpayer is, for treaty purposes, resident in the State in which he or she has:

(i) A permanent home available. If available in both, move to the next criterion.

(ii) The centre of vital interests, understood as the place of closest personal and economic relations. If undeterminable, or held in both, move to the next.

(iii) The State of habitual abode. If habitually living in both or in neither, move to the next.

(iv) The State of nationality.

(v) If a national of both or of neither, the conflict is resolved by mutual agreement procedure (MAP) between the competent authorities.

A typical tie-breaker case: permanent home only in Spain.

The DGT analysed this scenario in binding consultation V-0554-24, of 09/04/2024: a taxpayer relocated to Ecuador with spouse and children, with Ecuadorian residence recognised and material presence there in excess of 183 days. In Spain he kept a permanent home, while in Ecuador he lived in a home not his own. His investment and business asset centre remained in Spain.

The DGT walks through the cascade rule of article 4.2 of the Spain-Ecuador DTT. The first criterion —permanent home available— is met in Spain and, on the facts, not in Ecuador. This alone pulls the treaty residence to Spain, without needing to descend to the second criterion (centre of vital interests). The consultation usefully illustrates the practical dynamic of the tie-breaker: the cascade stops at the first criterion offering a clear solution, and the first criterion is the permanent home, not the vital centre.

Is a tax residence certificate issued by another State valid?

Yes, and the case law has consolidated the principle. STS 778/2023, of 12/06/2023 (rec. 915/2022) established the doctrine: Spanish administrative and judicial bodies are not competent to judge the circumstances under which a tax residence certificate was issued by the authorities of a State that has signed a DTT with Spain, where that certificate has been issued for purposes of the Convention. Its validity must be presumed.

STS 971/2025, of 15/07/2025 (rec. 4023/2023) has consolidated the criterion on three points: Spanish bodies are not competent to judge the circumstances under which the foreign certificate was issued; its validity is presumed; and residence conflicts are resolved by applying the tie-breaker rules of article 4.2 of the DTT.

As a result, the AEAT cannot, without more, disregard the material content of the foreign certificate. What it can do is invoke the tie-breaker rules of the DTT and, where appropriate, initiate the mutual agreement procedure.

And certificates issued by States with a territorial or special regime?

There is nuance here. The TEAC, in Resolutions of 24/06/2024 (RG 5590/2022 and RG 8325/2022), has consolidated the criterion for the Portuguese Non-Habitual Resident (NHR) regime: certificates issued to taxpayers under the NHR do not enable the application of the Spain-Portugal DTT, because under article 4.1 of the DTT a person is not resident if taxed only on income obtained in that State.

The reasoning extends to other regimes of territorial or restricted personal taxation. A taxpayer with a certificate issued under a regime that limits taxation to local income may not, for DTT purposes, be a resident in the conventional sense. The operational consequence is clear: the certificate is submitted, but one must be prepared for the AEAT to raise the issue of the DTT’s personal scope.

What about the now-repealed UK non-dom regime?

The UK non-dom regime was repealed with effect from 06/04/2025. It has been replaced by the FIG (Foreign Income & Gains) regime, based on residence, for four years from the acquisition of UK residence. In parallel, the TRF (Temporary Repatriation Facility) is available for the 2025/26 and 2026/27 tax years, with a reduced 12 per cent levy on pre-06/04/2025 income previously elected on the remittance basis. The UK inheritance-tax regime has also transitioned from a domicile-based to a residence-based system (10/20 years).

For those relocating to the UK, this means that the doctrine on certificates issued under a territorial regime loses application over time: from the transition to FIG, the taxpayer is taxed on worldwide income under the ordinary residence clause.

What did the Sito Pons case say about the criminal dimension of the residence conflict?

The STSJ of Catalonia 117/2025, of 01/04/2025 confirmed Sito Pons’s acquittal of charges of crimes against the Public Treasury for IRPF and IP. The judgment carries the civil-administrative doctrine into the criminal sphere: a foreign tax-residence certificate for DTT purposes must be respected by the Spanish authorities and courts, and where there is doubt about Spanish tax residence the typicity of the article 305 Criminal Code offence cannot be asserted.

The judgment underlines two operationally important ideas. First, the principle of non-investigation: Spanish courts cannot “erect themselves as a sort of custodians of the legality” of another State. Second, the doctrine of inevitable error: where there is a formally correct foreign certificate, the wilful intent of the tax offence can hardly be sustained. The judgment also draws on the SAP Barcelona of 12/12/2022 at first instance and on the TEAR Catalonia doctrine in the Pedrosa case (Resolution of 07/05/2015), which annulled a sanction for insufficient reasoning of culpability where a formally correct British certificate existed.

8. Special cases

I am a Spanish national relocating to Andorra, the UAE or Singapore with a DTT. What additional rules reach me?

The general block: article 9 LIRPF, DTT tie-breaker rules, foreign certificate. Andorra, the United Arab Emirates and Singapore all have DTTs with Spain, so residence conflicts are resolved by article 4.2 of each Convention. The documentary planning is the usual one: certificate of tax residence of the destination State, evidential file of presence and material life there, no residual economic centre in Spain.

And what if I move to a tax haven with no DTT?

Article 8.2 LIRPF kicks in: the Spanish national who establishes new tax residence in a country classified as a tax haven retains the status of IRPF taxpayer during the year of the change and the four following tax periods. It is a domestic anti-treaty-shopping rule that operates independently of the criteria of article 9.

To this is added the article 95 bis LIRPF exit tax, which we have analysed in detail in another point of this Spanish Tax Journal.

And Gibraltar? What changes with the 2019 Agreement?

The International Agreement on Taxation and the Protection of Financial Interests between the Kingdom of Spain and the United Kingdom in relation to Gibraltar, signed on 04/03/2019 and in force from 04/03/2021 (BOE of 13/03/2021), introduces specific rules that pull tax residence to Spain in qualified scenarios.

In particular, Spanish nationals who move their residence to Gibraltar after the signing of the Agreement are considered tax residents in Spain in all cases. For legal persons, Gibraltarian companies with significant ties —majority of assets, income, owners or directors in Spain— are pulled to Spanish residence.

The DGT, in binding consultation V-1310-22, has also confirmed that the Agreement does not alter Gibraltar’s classification as a tax haven for domestic purposes. The two rules accumulate.

And a worker relocating to a country with a DTT for two years, leaving family in Spain?

A frequent case: doctor, executive or consultant accepting a posting in another State for a prolonged but bounded period, with spouse and, where applicable, minor children remaining in Spain. The DGT addressed this in binding consultation V-2197-25, of 17/11/2025, on a doctor planning to relocate to Saudi Arabia for two years, with a spouse and a seventeen-year-old child in the family home.

The DGT walks through the full framework. (i) Stay abroad for more than 183 days, in a continuous period and for employment reasons, is not sporadic; the 9.1.a) criterion does not bite. (ii) The economic centre depends on the facts. (iii) The family presumption is activated by the concurrence of non-legally-separated spouse and minor dependent child. (iv) If the presumption is not rebutted —Saudi certificate plus documentation of material life in Saudi Arabia—, there is tax residence in Spain. And if Saudi Arabia also considers him resident, the conflict is resolved by the tie-breaker rules of article 4.2 of the Spain-Saudi Arabia DTT signed on 19/06/2007.

The operational piece is always the same: document the move, keep the certificate, maintain the coherence of the material signs.

Spanish diplomats and official missions abroad?

Articles 10 and 9.2 LIRPF establish specific rules that override the general criterion. Article 10 maintains the IRPF taxpayer status of Spanish nationals and of their non-legally-separated spouse and minor children where they reside abroad as members of Spanish diplomatic missions, consular offices, permanent delegations to international organisations or holders of official posts. Article 9.2, by reciprocity, excludes from IRPF taxpayer status foreign nationals residing in Spain on the same grounds, save where a treaty provides otherwise.

And digital nomads and international remote workers?

The general rule is not displaced: if they stay more than 183 days in Spain or have their economic centre here, they are residents. Law 28/2022, of 21 December, on the promotion of the startup ecosystem, introduced the visa and the international remote-work regime, but tax residence continues to be determined by article 9 LIRPF. The operational singularity is that the remote worker for a foreign company can raise collateral issues —permanent establishment of the non-resident employer, withholdings, social security— which should be analysed jointly with residence.

9. Inspection procedure on tax residence

What information does the AEAT gather when it opens an inspection on residence?

A lot of material, and each year more. The inspection typically cross-references: exit and entry records (flights, frontier), municipal census data, utilities (electricity, gas, water), real-estate ownership and use, bank movements and card data, notarial files (purchases, granting of deeds), healthcare data (doctors, pharmacies), schooling of children, returns filed in other States.

The Annual Tax and Customs Control Plan 2026 (Resolution of 11/03/2026 of the Director General of the AEAT, BOE of 12/03/2026) maintains as a priority line the intensive control of individuals with significant wealth and the “simulation of tax residence outside Spanish territory, particularly individuals, with the principal aim of obtaining lower effective taxation than due”. From 2027, the new Form 174 on card operations (first filing in 2027, tax year 2026) will reinforce the consumption cross-reference.

How is the fiscal calendar built for the 183-day count?

The fiscal calendar is built by combining three types of days, in line with the TEAC doctrine:

(i) Certified days: days where presence in Spain is established by direct documentary evidence (stamps, dated receipts, appointments, entry flights).

(ii) Presumed days: intermediate days between two certified days, within a reasonable count, during which the AEAT presumes continuity of presence.

(iii) Sporadic absences: departures counting as presence unless a residence certificate of another State is provided.

The hidden risk in planning is the presumed days: the taxpayer who documents two visits to Spain fifteen days apart may see those fifteen days imputed as presumed stay, save evidence that during them he or she was outside the territory.

What evidential file should be prepared before an inspection?

What doctrine has come to call the defensive file: a robust, coherent dossier allowing the taxpayer to articulate the defence with documentation already closed when the inspection arrives. Typical elements include:

• Passports, boarding passes, entry/exit stamps.
• Foreign tax-residence certificates of the declared State.
• IRPF-equivalent returns filed in the other State.
• Lease or real-estate ownership contracts abroad.
• Utility receipts and consumption in the declared residence State.
• Schooling of children.
• Habitual healthcare abroad.
• Social ties: membership of clubs, gyms, associations.
• Banking documentation evidencing spending pattern outside Spain.

The coherence among pieces weighs as much as each piece individually. A dense but contradictory dossier is weaker than a sparse but internally coherent one.

10. Autonomous-region tax residence

Is autonomous residence determined as the State residence is?

No. The difference is relevant and often goes unnoticed.

At the State level (art. 9.1 LIRPF), the three criteria operate alternatively: meeting any one suffices.

At the autonomous level (art. 28 of Act 22/2009 on the financing of the common-regime Autonomous Communities and art. 72 LIRPF), the criteria operate successively or subsidiarily: (i) stay (greater number of days in the Autonomous Community); (ii) main centre of economic interests; (iii) last residence declared in IRPF (as a residual criterion).

Does the Autonomous Community I lived in matter for IP and ISD?

Greatly. The Net Wealth Tax and the Inheritance and Gift Tax are ceded to the Autonomous Communities with their own regulatory capacity. Madrid bonifies the IP at 100 per cent (compensated by the State ITSGF), while Catalonia, Valencia and the Balearic Islands keep the IP fully exigible. This regulatory divergence fuels growing litigation on interautonomous residence changes.

To this is added a presumption of non-effectiveness of the change of residence (art. 28.4 Act 22/2009): the AEAT may presume, unless evidence to the contrary, that the change is not effective when three circumstances concur: (i) the new residence does not last at least three years; (ii) the IRPF tax base increases by 50 per cent or more against the previous year; and (iii) the effective taxation is lower than would have applied in the previous Autonomous Community.

What recent Supreme Court case law applies to inter-autonomous inspection competence?

Three rulings stand out in the 2022-2025 horizon.

The STS of 21/03/2022 (rec. 2221/2020) held that acts adopted by a territorially incompetent Administration are voidable but not radically null, and interrupt prescription where the domicile is rectified retroactively.

The STS of 15/04/2024 (rec. 9082/2022) has refined that the competence of an Autonomous Community to assess IP depends on the correct identification of the connecting factor —real habitual residence—, without prior formal modification of the fiscal domicile through the procedure of articles 148 ff. of the General Regulation on Tax Management and Inspection Procedures being required. The doctrine is especially relevant for Madrid against other Autonomous Communities without IP bonification.

The STS of 20/06/2024 (rec. 645/2023), regarding Basque Country-Cantabria, has held that one Administration may not unilaterally assume the competence to assess ISD against the declared fiscal domicile without first initiating the change-of-domicile procedure of the Concert.

Litigation remains open: the Supreme Court Order of 23/04/2025 (rec. 2910/2024) admitted to cassation a new question similar to STS of 15/04/2024, pending resolution.

11. Acquisition and loss of tax residence

When is Spanish tax residence acquired?

By meeting any one of the three criteria of article 9.1 LIRPF during the year. Residence is attributed to the complete year, even if the material change takes place mid-year. The taxpayer who relocates to Spain in July and meets the 183 days in the second semester will be a Spanish tax resident for the entire year of the change.

For taxpayers relocating to Spain as a consequence of an employment situation —contract, administrator, highly qualified professional, innovative entrepreneur— eligibility for the special inbound-expatriates regime of article 93 LIRPF (Beckham Law) should be assessed, allowing taxation under the IRNR for six years. I have addressed this in detail in the Frequently asked questions about the Beckham Law in this Spanish Tax Journal.

When is Spanish tax residence lost?

By non-fulfilment of the three criteria of article 9.1 LIRPF during the complete year. The loss of residence operates on the same calendar-year logic: there is no partial tax residence.

Where the taxpayer who loses residence retains a qualified portfolio of shares or participations, the exit tax regime of article 95 bis LIRPF comes into play, which I have analysed in the Frequently asked questions about the exit tax.

And tax-residence certificates when I am the one leaving Spain?

Conversely: if after relocating a Spanish tax-residence certificate is needed —to invoke the treaty rules of a third State, for instance—, the taxpayer must request it from the AEAT. It is worth ensuring that the certificate is obtained in its “for purposes of the Convention” version, not the domestic certificate, so that it produces full effects before the other Administration.

Tax residence is the most sensitive connecting factor of the system, and the most frequently disputed. The above is a map, not an opinion. If you are planning an entry or an exit from Spain, or if the AEAT has opened a comprobación procedure on residence, get in touch before taking operational steps. Defence almost always starts well before the inspection arrives.

Sources

Supreme Court and higher courts

• Supreme Court, judgments of 28/11/2017 (nos. 1.829/2017, 1.850/2017, 1.860/2017 and 1.834/2017) — concept of sporadic absence (ICEX scholarships): link
• Supreme Court, judgment 778/2023, of 12/06/2023 (rec. 915/2022) — validity of the foreign tax-residence certificate for DTT purposes: link
• Supreme Court, judgments 1214/2024 (08/07/2024, rec. 1909/2023), 1236/2024 (09/07/2024), 1392/2024 (22/07/2024, rec. 7744/2022) and 1393/2024 (22/07/2024) — eclectic doctrine on the main centre of economic interests: link
• Supreme Court, judgment 971/2025, of 15/07/2025 (rec. 4023/2023) — consolidation of the doctrine on foreign residence certificates: link
• Supreme Court, judgment of 15/04/2024 (rec. 9082/2022) — inter-autonomous inspection competence and the connecting factor: link
• TSJ of Catalonia, judgment 117/2025, of 01/04/2025 — Sito Pons case, validity of the British certificate in criminal proceedings and the doctrine of inevitable error: link
• TSJ of the Canary Islands, judgment of 20/12/2024 (Rec. 227/2024) — autonomous residence by concordant indicators: link

TEAC doctrine

• TEAC, Resolutions of 28/03/2023 (RG 04045/2020) and 25/04/2023 (RG 04812/2020) — typology of days for the 183-day count: link
• TEAC, Resolutions of 24/06/2024 (RG 5590/2022 and RG 8325/2022) — Portuguese NHR certificate does not enable the Spain-Portugal DTT: link

Binding consultations DGT

• DGT, V-0347-24, of 12/03/2024 (family unit with spouse civil servant resident in France; 48th Add. Prov. LIRPF): link
• DGT, V-0554-24, of 09/04/2024 (move to Ecuador with spouse and children; permanent home only in Spain; DTT tie-breaker): link
• DGT, V-1270-25, of 10/07/2025 (Brazilian retiree Spanish tax resident; move to Brazil leaving wife and adult daughter): link
• DGT, V-2197-25, of 17/11/2025 (doctor relocating to Saudi Arabia for two years with spouse and minor child in Spain; family presumption and DTT): link
• DGT, V-2558-25, of 18/12/2025 (relocation to the United Arab Emirates for employment reasons; 150 days in Spain; quantitative comparison of the economic centre): link

Legislation and plans

• International Agreement Spain-United Kingdom regarding Gibraltar, of 04/03/2019, BOE of 13/03/2021 (BOE-A-2021-3947): link
• Annual Tax and Customs Control Plan 2026 (Resolution of 11/03/2026 of the AEAT, BOE of 12/03/2026, ref. BOE-A-2026-5843): link

The practical consequence, for the defensive purposes of the client with material ties in Spain, is demanding. The broader those ties —available habitual home, family unit, professional presence, recurring social and personal events—, the more solid the evidence of real residence abroad must be. The defensive file does not allow improvisation: a detailed calendar of day-by-day presence, backed by contemporaneous evidence (banking movements, immigration records, attendance at professional and personal events, lease or ownership contracts of a dwelling in the foreign jurisdiction), and an annual tax-residence certificate issued under the applicable tax treaty. Without that documentation, the certificate by itself does not withstand criminal scrutiny.

Full analysis in → The Criminal Chamber of the Spanish Supreme Court rules on the presumption of validity of tax-residence certificates in criminal proceedings