Preparing a self-employed income tax return in Spain involves gathering more than business invoices. Tax data, business records, tax withheld and advance payments need to fit the taxpayer’s personal circumstances. Organising this information helps identify missing documents before reviewing the result.
This guide suggests a working file to give your gestoría or use when reviewing your return. It focuses on documentation, particularly for businesses under Spain’s direct assessment method. Adapt the list to your circumstances: having a receipt does not automatically make an expense deductible, and the information in Renta WEB needs a full review.
Start with your tax data and previous tax return
Download the tax data for the year you are declaring and keep a copy of your previous return. Renta WEB can import information already held by the Spanish Tax Agency, but it may also require additional details. Compare the imported information with your documents: a prefilled amount does not confirm that all business activity is included or that your personal circumstances remain unchanged. [1]
List any differences before changing amounts: identify the payer, what the payment relates to, the document supporting the figure and the relevant tax year. Your previous return is a reference for finding information that needs checking, not a template for automatically copying its results. Keep each year’s files separate to avoid mixing income, expenses or supporting documents. [2]
- Tax data for the relevant year and a copy of the previous return.
- Identification document, tax address and the relevant bank account details.
- List of personal changes and discrepancies identified in the amounts.
Business records and evidence of income and expenses
Gather the records or accounts required for your business and tax regime. The AEAT distinguishes between obligations according to how income is assessed, so self-employed people do not all keep exactly the same records. Provide a complete, organised version, linking invoices issued and received to their entries, and flag any documents still to be obtained. [3] [7]
Separate personal expenses from business expenses and keep evidence for those you intend to include. Deductibility requires checking the business connection, supporting documentation and recording, as well as the applicable conditions. For equipment or other assets used over several tax years, also provide purchase documents and details of any depreciation already claimed. [4] [7]
- Records or accounts for the year, including the relevant registers.
- Issued, received and corrective invoices, clearly identified without duplicates.
- Evidence of social security contributions and other expenses requiring review.
- Documents for capital assets and previous depreciation, where applicable.
Check tax withheld and Form 130 advance payments
Gather the withholding certificates supplied by your payers and compare them with invoices and tax data. Tax withheld and instalment payments are payments on account of Spain’s personal income tax, IRPF. Identifying them helps you check their treatment in the annual return without confusing business income with the money ultimately received in your bank account. [2]
If you filed Form 130, include the returns for the year and their supporting records, including any corrections. This form concerns advance payments for activities under direct assessment, with exceptions that must be checked. Do not assume every self-employed person files it. Record differences between a return, a bank debit and the available data so they can be clarified before finalising the income tax return. [5]
- Withholding certificates and a list of business payers.
- Form 130 returns, supporting records and corrections, where applicable.
- Details of unresolved differences between records, returns and bank transactions.
Personal circumstances and other income also matter
Your return includes circumstances beyond your business. Report changes in your family situation and residence, and provide relevant documents for the people who need to appear on the return. If you also worked as an employee, received property income or made investment transactions during the year, prepare the certificates and evidence so they can be reviewed alongside the business activity. [2] [6]
Group documents relating to potential deductions or tax relief separately, such as home rental, donations or other relevant circumstances. Supporting documents do not always create a right to a deduction, and conditions may depend on the tax year and Spanish autonomous community. Explain what each document relates to so the review can establish whether and how it should be included, without automatically carrying over another year’s tax relief. [2] [6]
- Personal, family and residence changes relevant to the year.
- Certificates for other income and documents for asset transactions, if any.
- Evidence for possible deductions, separate from business expenses.
Hand over the file and complete the tax return review
Create a folder for each tax year and separate business records, payments on account and personal documents. A checklist of documents received and outstanding helps explain what is missing without duplicating files. Before filing, review the return summary, resolved discrepancies and bank details. Afterwards, keep the filed return and the documents supporting it; the obligation to retain evidence does not end when you submit it. [2]
If you need help, Gestoría del Mar can review your income tax return and ongoing business bookkeeping. When requesting a quote, explain your activity, the tax year to review and whether your records are up to date. The quote depends on your circumstances and the documents available. Preparing this inventory first helps define the work and identify the information you need to complete before filing.
- Give files clear names and identify outstanding documents.
- Review the final summary and save the filed return with its submission receipt.
- Keep the supporting documents and an organised copy for future reference.
Frequently asked questions
Can I submit my return using only the tax data without checking anything else?
Do not assume the prefilled information is complete. Compare the tax data with your business records and personal supporting documents. Review any missing details and discrepancies before filing.
Do I need to provide Form 130 if I am self-employed?
Provide the forms you filed for the year. The obligation to file Form 130 depends on your activity and the applicable conditions; not every self-employed person must file it. If you do not have it, first clarify whether it was required.
Is an invoice enough to deduct an expense on my income tax return?
An invoice is important evidence, but it does not by itself establish that an expense is deductible. Its connection to the business, its recording and the other conditions applicable to your case must also be checked.