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    TaxKilnUK tax guidance
    TaxKilnUK tax guidance

    Moving Abroad → Modelo 720 + 721 disclosure

    Modelo 720 plus Modelo 721 — Spanish Foreign-Asset Disclosure

    Spanish tax residents must file Modelo 720 annually to disclose foreign assets where any category exceeds €50,000 in aggregate. The three categories are: (1) bank accounts (cuentas en entidades financieras); (2) securities, insurance and pensions (valores, seguros y rentas); (3) real estate and rights over real estate. A new Modelo 721 covers foreign crypto-asset holdings above €50,000, in force for the 2023 calendar year (first filing in 2024). The 2022 CJEU ruling (Case C-788/19) struck down Spain's pre-existing disproportionate penalty regime; RDL 13/2022 reformed the penalty framework. The reporting obligation itself remains intact.

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    Guidance, not advice. We explain the rules, we don't assess your situation. Always seek financial or tax advice from your accountant, or contact HMRC. Read our editorial scope →

    In plain English

    Modelo 720 is Spain's parallel to UK self-assessment foreign-asset reporting, but with sharper teeth historically. The form discloses, NOT taxes — the underlying income is reported separately on the IRPF return. The point is to give AEAT visibility into resident-held foreign assets so income, capital gains and wealth tax can be enforced. Three categories. Cross any €50,000 category threshold and that category must be reported. Once reported, re-file only if the category grows by more than €20,000 or you stop holding an asset. The 2022 CJEU ruling on disproportionate penalties forced Spain to overhaul the sanction regime, but the underlying obligation is unchanged. New for 2023 onward: Modelo 721 brings foreign-held crypto into the same disclosure framework. Spanish-resident UK pensioners, ISA-holders and property-investors typically all need to file Modelo 720; UK pensions and ISAs are NOT excluded from the disclosure.

    How it works

    Who must file

    Any Spanish tax resident (under Art. 9 LIRPF; see /moving-abroad/spain/srt-and-spanish-residence-test) holding foreign assets above €50,000 in any of the three Modelo 720 categories on 31 December must file by 31 March of the following year. Spanish-source assets are excluded. Joint ownership: each holder declares the full value with their ownership percentage, not the apportioned share — AEAT then reads ownership share separately. Beckham Law special-regime taxpayers are exempt from Modelo 720 for the duration of the regime (one of the meaningful benefits of the special regime).

    The three categories — what to disclose

    Category 1 — bank accounts (cuentas en entidades financieras): all foreign bank accounts where you are holder, beneficial owner or authorised signatory. Report balances at 31 December and average Q4 balances. Category 2 — securities / insurance / pensions: shares, bonds, collective investment vehicles (UK OEICs/ETFs/unit trusts), insurance policies with cash value, pension rights including UK SIPP plus UK State Pension entitlement (Spanish guidance treats these as reportable rights). Category 3 — immovable property and rights over immovable property: foreign real estate, including UK BTLs, primary residence in UK if retained, and rights such as usufruct.

    Modelo 721 — crypto-asset disclosure (from 2023 reporting)

    Crypto-assets held in non-resident custody (foreign exchanges, foreign wallets where custodian is non-resident) above €50,000 at 31 December are disclosed on Modelo 721. Self-custody where keys are physically in Spain may fall outside, but AEAT guidance evolves; conservative practice files. Filing window 1 January to 31 March of following year. Modelo 721 supplements (does not replace) Spanish-resident-custody crypto reporting on Modelo 172.

    Post-CJEU penalty regime

    Pre-2022: penalties were fixed at €5,000 per omitted data point with a €10,000 minimum, plus undisclosed assets were deemed unjustified capital gains taxed at top marginal rates plus a 150% surcharge — no statute-of-limitations protection. CJEU 2022 (Case C-788/19) found this disproportionate and contrary to EU free-movement-of-capital. RDL 13/2022 (in force 5 July 2022) replaced this with standard general-tax-law penalties: late filing without prior request typically 20% surcharge plus interest; AEAT-requested late filings face proportionate penalties under Ley 58/2003 General Tributaria. The reporting obligation itself was not struck down.

    Who this applies to + key conditions

    Statute + manual references

    Primary: Modelo 720: Disposición Adicional 18ª Ley 58/2003 General Tributaria, regulated by Real Decreto 1558/2012 and Orden HAP/72/2013. Modelo 721: Real Decreto 249/2023 plus Orden HFP/887/2023.

    Related: Real Decreto-Ley 13/2022 (penalty regime reform post-CJEU); CJEU Case C-788/19, Commission v Spain (27 January 2022); Ley 35/2006 LIRPF (substantive Spanish income tax); Ley 19/1991 Impuesto sobre el Patrimonio (wealth tax interaction)

    HMRC manual: n/a (Spanish domestic disclosure regime)

    Common mistakes + traps

    Worked example

    Helena, Spanish-resident from 2025 with UK retained assets

    Helena moved from Manchester to Málaga on 1 February 2025. By 31 December 2025 she holds: a UK current account £30,000; a UK Stocks & Shares ISA £80,000 (OEICs and ETFs); a UK SIPP £200,000; a UK BTL valued at £350,000; and a Coinbase account (US-based exchange) holding €60,000 of crypto.

    1. Residence: Helena is Spanish-resident under Art. 9 LIRPF for full 2025 calendar year — see /moving-abroad/spain/srt-and-spanish-residence-test. Modelo 720 obligation is triggered.
    2. Category 1 — bank accounts: UK current account €36,000 equivalent (using ECB end-Q4 rate, illustrative) — below €50,000 alone. If she also retains a UK savings account aggregate above €50,000, Category 1 is in scope. On these facts only one account, so Category 1 NOT triggered. Note: aggregate across all foreign bank accounts, not per-account.
    3. Category 2 — securities / insurance / pensions: UK ISA €95,000 + UK SIPP €238,000 = €333,000. Above €50,000 — Category 2 must be filed.
    4. Category 3 — immovable property: UK BTL €415,000 — above €50,000. Category 3 must be filed.
    5. Modelo 721 — crypto: Coinbase €60,000 above €50,000 threshold. Modelo 721 must be filed for 2025 calendar year by 31 March 2026.
    6. Filing: Helena files Modelo 720 by 31 March 2026 covering Categories 2 and 3 (not Category 1 because aggregate below €50,000). She files Modelo 721 separately for the crypto. She does NOT re-file Modelo 720 in 2027 unless Category 2 or 3 grows by more than €20,000 or an asset is disposed of.
    7. IRPF interaction: ISA income, SIPP rights, BTL rental and crypto gains are all reportable on Helena's Spanish IRPF 2025 return (filed June 2026), with UK credit relief under the DTA where applicable. Modelo 720 reports the asset existence; IRPF taxes the income.

    Outcome: Helena files Modelo 720 for Categories 2 and 3 by 31 March 2026, plus Modelo 721 for crypto. She also files her Spanish IRPF 2025 return reporting worldwide income with treaty credit. She holds the position for AEAT review and pays Spanish wealth tax / ISGF where her worldwide net wealth exceeds the regional and state thresholds — see /moving-abroad/spain/wealth-tax-and-isgf.

    How this connects to the rest of the framework

    SRT plus Spanish residence test →

    Spanish residence is the trigger for Modelo 720/721 obligation.

    Beckham Law special regime →

    Beckham Law special-regime taxpayers are exempt from Modelo 720 during the regime.

    Spanish wealth tax + ISGF →

    Wealth tax base depends on the same foreign-asset valuations declared on Modelo 720.

    UK-Spain DTA mechanics →

    The DTA does NOT override Modelo 720 — disclosure is independent of treaty taxing rights.

    Frequently asked questions

    What happens if I miss the Self Assessment deadline?+
    The Self Assessment deadline is 31 January (online filing) for the previous tax year. Miss it and HMRC apply an automatic £100 penalty. Beyond that: £10 per day from 3 months late (capped at £900), 5% of tax due at 6 months late, and another 5% at 12 months late, under Schedule 55 of the Taxes Management Act 1970. If you have a genuine reason (serious illness, bereavement, technical issue with HMRC's systems) you can appeal with evidence; HMRC accepts reasonable excuse appeals in most genuine cases.
    Do I need an accountant or can I file Self Assessment myself?+
    Legally you can file Self Assessment yourself via gov.uk for free, most simple sole-trader returns (single income source, basic expenses) are realistic to self-file. An accountant adds real value when: your trading profit is above £40,000 (extraction-strategy decisions matter), you have multiple income streams (PAYE + self-employment + property + dividends), you've crossed the £90,000 VAT threshold, you're considering incorporation, or you have an HMRC enquiry. Expect to pay £400-£1,500/year for a typical sole-trader accountant; the cost is itself a deductible expense.
    How do payments on account work?+
    When your Self Assessment tax bill exceeds £1,000 for the first time, HMRC requires payments on account toward NEXT year's tax. Half the current bill is due 31 January (alongside the current bill); the other half is due 31 July. So your first January after crossing the threshold can hit with a double-bill: last year's balance + first payment on account. Adjust via Form SA303 if you expect next year's income to drop substantially. Payments on account don't apply if more than 80% of your tax is collected via PAYE.
    Is a UK ISA really reportable on Modelo 720?+
    Yes. AEAT does not recognise the UK ISA wrapper as tax-exempt for Spanish-resident holders, and the underlying securities (OEICs, ETFs, individual shares, cash holdings) are reportable in Category 2 (securities) or Category 1 (cash component, if held as cash). Spanish residents lose the ISA's UK tax exemption from a Spanish IRPF perspective — income and gains within the ISA become Spanish-IRPF taxable annually. Conservative practice is to disclose the full ISA aggregate at year-end value.
    What happens if I forget to file Modelo 720?+
    Post-RDL 13/2022 the penalty regime is governed by standard general-tax-law mechanics under Ley 58/2003 General Tributaria. Voluntary late filing (before AEAT request) typically triggers a 1% per month of delay surcharge for the first 12 months, then 15% plus default interest. AEAT-requested late filings face proportionate penalties depending on whether prejudice to the tax authority occurred. The CJEU 2022 ruling killed the old disproportionate regime, so the catastrophic deemed-unjustified-gain plus 150% surcharge no longer applies — but the obligation itself is intact and AEAT does pursue non-filers.
    Beckham Law users — do they really skip Modelo 720?+
    Yes. Beckham Law special-regime taxpayers (under Art. 93 LIRPF) are exempt from Modelo 720 for the duration of the regime (up to 6 tax years). This is one of the meaningful practical benefits beyond the headline flat-rate IRPF treatment. The exemption applies because under Beckham Law you are taxed as a non-resident on foreign income for that period. Once the regime ends — by lapse of the 6-year period or by election out — Modelo 720 obligations resume normally from the year after the regime ends.
    Do I report my UK State Pension entitlement on Modelo 720?+
    AEAT guidance treats State Pension entitlement as a reportable right under Category 2 (insurance and pension rights) where the capitalised value is determinable and above the €50,000 threshold. For most retirees this is the case. Conservative practice discloses; some practitioners narrow the scope to private pensions only. Spanish-side AEAT positions have evolved; the safe filing is full disclosure with a valuation methodology footnote.

    Free + regulated-body resources

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