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The short answer
You become Spanish tax resident for a calendar year if you spend more than 183 days in Spain that year, or if the main base of your economic interests is in Spain; you are also presumed resident if your spouse and dependent minor children live here. Residents pay Spanish IRPF on worldwide income, including Nigerian rent and interest, with treaty relief for Nigerian tax.
The two Spanish tests
Spain decides tax residence under Article 9 of the Ley del IRPF. You are resident for a calendar year if either test is met:
- Days. You stay in Spain for more than 183 days during the calendar year. Sporadic absences count as days in Spain unless you prove you are tax resident in another country.
- Economic interests. The main core or base of your activities or economic interests is in Spain, directly or indirectly.
There is also a presumption: if your spouse (not legally separated) and your dependent minor children live in Spain, you are presumed resident unless you prove otherwise. Nationality and immigration status do not decide it. A Nigerian on a student stay, a work permit, a TIE card or no permit at all is tested the same way.
Counting the days
The count runs from 1 January to 31 December, because the tax period is the calendar year (Article 12). The line is more than 183 days, so 183 days is not enough on that test alone; 184 is.
| Arrival (example, non-leap year) | Days in Spain to 31 Dec | Resident on the days test? |
|---|---|---|
| 1 May | 245 | Yes |
| 1 July | 184 | Yes, just |
| 2 July | 183 | No (but check the economic test) |
| 15 August | 139 | No (but check the economic test) |
Someone who arrives in August with a Spanish job contract, a rented flat and family following can still be resident for that year if the centre of their economic interests is Spain. The days test is the clearest, not the only, route.
What being resident means for your Nigerian income
A Spanish resident pays IRPF on all their income wherever it arises (Article 2). For the year you are resident, that covers your Spanish salary and also Nigerian rent, interest, dividends, freelance fees and gains on selling Nigerian property or shares. Spain's tax period is the whole calendar year, so residence is decided for the year rather than from the day you land. Our guides on declaring Nigerian rent and filing the Renta with Nigerian income cover how it goes on the return.
When Nigeria still counts you as resident
Nigeria applies its own tests under the Nigeria Tax Act 2025. PwC's summary (reviewed May 2026) says an individual is resident in Nigeria if any one applies: domiciled in Nigeria; a permanent home available for domestic use in Nigeria; a habitual abode in Nigeria; at least 183 days in Nigeria in any 12-month period; substantial economic or immediate family ties in Nigeria; or serving abroad as a Nigerian diplomat. A Nigerian who moves to Madrid but keeps a furnished family house in Enugu could meet more than one of those.
If both countries treat you as resident, Article 4 of the Spain–Nigeria treaty breaks the tie, in this order:
- Where you have a permanent home available. If in both, where your personal and economic relations are closer (centre of vital interests).
- If that cannot be decided, where you have a habitual abode.
- If both or neither, your nationality.
- If still unresolved, the two tax authorities agree it between them.
The tie-breaker decides which country is treated as your residence for the treaty, and so which one gives credit for the other's tax. It does not delete your domestic filing duties; see whether Nigeria taxes your Spanish salary.
Common mistakes
- Assuming a permit decides residence. Tax residence follows the Article 9 tests, not the type of card in your wallet.
- Counting from your arrival date only. Days are counted for the calendar year, so a December arrival rarely meets the days test for that year but will usually meet it for the next.
- Ignoring the family presumption. If your spouse and minor children are settled in Spain while you work rotations abroad, Spain presumes you resident unless you prove otherwise.
- Forgetting Nigeria's side. Leaving Nigeria does not end Nigerian residence if a permanent home or close family ties remain there.
What to check first
- Keep a day count for the year: flight confirmations, passport stamps, rental contract dates.
- Note where your family lives and where your main income and assets are.
- If you keep a home in Nigeria, decide whether it is available for your use; that matters to both countries' tests.
- Register for a Spanish tax ID (NIE/NIF) if you have not, and check whether you need to file the Renta for your first year.
Where Pryme fits
Residence changes how your money is taxed, not where you may hold it. A Pryme account holds naira and euros side by side, with Swap showing the rate and the fee before you approve a conversion, and verifiable statements to show either tax authority what came in and when. See multicurrency accounts.
Questions people ask
Is it 183 days or 184 days for Spanish tax residence?
The law says more than 183 days in the calendar year, so 184 days or more meets the days test.
I arrived in Spain in September. Am I resident this year?
Not on the days test, but you can still be resident if your main economic interests are in Spain, for example a Spanish job and your assets moved here.
Do trips back to Nigeria break my 183 days?
Short, sporadic absences still count as days in Spain unless you prove you are tax resident in another country.
Can I be tax resident in both Spain and Nigeria?
Under each country's own law, yes. The Spain–Nigeria treaty's Article 4 tie-breaker then decides which one counts as your residence for the treaty.
Sources
- BOE: Ley 35/2006 del Impuesto sobre la Renta de las Personas Físicas, consolidated text (last updated 7 Oct 2026), arts 2, 8, 9 and 12 · accessed Oct 2026
- Spain–Nigeria Convention for the avoidance of double taxation and Protocol (English text published by the Ministerio de Hacienda) · accessed Oct 2026
- PwC Worldwide Tax Summaries: Nigeria, individual residence (reviewed 29 May 2026) · accessed Oct 2026
- Mondaq (S.P.A. Ajibade & Co): Individual tax residency and implications under the tax reform Acts (27 Oct 2025) · accessed Oct 2026
This article is general information, not financial, legal or tax advice. Products described are provided under the terms on this site and are subject to regulation and eligibility.