Monthly Accounting & Bookkeeping Support in Spain
Spain's tax system runs on quarterly filings, not annual ones. Ongoing bookkeeping keeps autónomos and small companies compliant between Renta seasons and avoids penalties that have nothing to do with how much tax you actually owe.
Our team handles your invoicing setup, expense tracking, and quarterly Modelo 303/130 filings, then reconciles and files your annual returns — so you never handle a Hacienda deadline alone.
Overview
Unlike the US or UK, where many self-employed people only think seriously about taxes once a year, Spain's system is built around quarterly obligations: VAT/IVA returns, income tax withholding on account, and social security contributions all have their own recurring deadlines throughout the year. Missing a quarterly filing — even a "nil" one with no activity — typically triggers a penalty independent of whether any tax was actually due.
For autónomos and small company owners, this generally makes some form of ongoing bookkeeping a practical necessity rather than an optional convenience. The scope ranges from basic invoice and expense tracking to full monthly reconciliation and filing on your behalf, depending on your business complexity.
Who Needs This
| Situation | Typical obligation |
|---|---|
| Autónomo with Spanish and/or EU clients | Quarterly IVA (Modelo 303) and income tax on account (Modelo 130), plus annual return |
| Autónomo invoicing exclusively outside the EU | Different IVA treatment; still generally subject to quarterly income tax on account — see VAT/IVA & ROI Registry |
| SL company owner | Quarterly IVA, corporate tax installments, payroll filings if employing staff, plus annual corporate tax return — see Company Registration |
| Beckham Law regime participant | Annual filing under the special regime (Modelo 151) rather than standard IRPF — see Beckham Law |
The Recurring Filing Calendar
| Filing | Frequency | Applies to |
|---|---|---|
| Modelo 303 (IVA/VAT return) | Quarterly | Most autónomos and companies charging IVA |
| Modelo 130 (income tax payment on account) | Quarterly | Autónomos under direct estimation tax regime |
| Modelo 111 (withholding on employees/contractors) | Quarterly | Anyone with staff or certain professional service payments |
| Modelo 349 (intra-EU operations summary) | Monthly or quarterly depending on volume | Businesses registered on the ROI trading with EU counterparts |
| Modelo 390 / annual IVA summary | Annual | Most IVA-registered businesses |
| Modelo 100 (Renta / annual income tax return) | Annual, typically April–June | All tax residents above filing thresholds |
Process
- Set up invoicing that meets Spanish formal requirements (sequential numbering, IVA breakdown, NIF/NIE of both parties).
- Track income and deductible expenses on an ongoing basis rather than reconstructing them at quarter-end.
- File each quarterly return by its deadline, even if the quarter had no activity.
- Reconcile and file the annual summary returns and income tax return during the spring filing season.
Costs
| Item | Typical range |
|---|---|
| Spain Relocation — monthly bookkeeping & quarterly filing (autónomo) | Quoted individually based on invoice volume — see Pricing |
| Spain Relocation — SL company monthly accounting | Quoted individually based on company size and payroll |
| Official government filing fees | Generally none for standard Modelo e-filings; costs come from professional service fees, not government charges |
FAQ
What happens if I miss a quarterly filing deadline?
Late filing generally triggers a surcharge even if no tax is owed for that quarter, and interest accrues on any unpaid amount. Repeated late filing can also increase scrutiny on future returns, which is why most autónomos and small companies use ongoing bookkeeping support rather than handling each quarter reactively.
Do I need a full-service accountant, or can I file myself?
Self-filing is possible for very simple cases, but Spain's invoicing formalities, IVA treatment differences (domestic vs. EU vs. non-EU clients), and deduction rules are detailed enough that most freelancers and business owners use professional support at least for the quarterly filings, if not full bookkeeping.
How is bookkeeping different for an SL company versus an autónomo?
SL companies face additional obligations — formal double-entry accounting books, corporate tax installment payments, and (if employing staff) payroll and social security filings for employees — on top of the quarterly IVA cycle that applies to autónomos as well.
Can I switch accounting providers mid-year?
Yes, though it's worth timing the handover around a quarter boundary where possible, and ensuring your new provider has access to your prior filings and digital certificate before the next deadline arrives.
US Does my Spanish bookkeeping data need to align with my US tax reporting too?
Not automatically — Spanish and US tax years, categories, and reporting rules differ. However, the income and expense records your Spanish bookkeeper maintains are typically the source data your US preparer will need to calculate items like the Foreign Earned Income Exclusion, Foreign Tax Credit, and — if applicable — FBAR/FATCA reporting on Spanish business accounts. Keeping clean Spanish records makes US-side compliance considerably easier; the two systems don't talk to each other automatically.
UK If I'm still receiving UK income while running Spanish bookkeeping, does HMRC need separate records?
Yes, generally — UK-source income (rental property, dividends, pensions) typically still needs to be reported to HMRC under UK rules even while your Spanish business activity is tracked separately for Hacienda. The UK-Spain double taxation treaty prevents the same income being taxed twice, but it doesn't merge the two countries' reporting systems — you'll typically need records organized for both.
Tired of chasing quarterly deadlines?
Book a free consultation and we'll set up bookkeeping that keeps you compliant without the year-end scramble.
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