Does Filing Your Tax Return Late Delay Your Refund?

Does the Tax Agency take longer to issue a refund if you file your tax return near the deadline?

Technical answer: No. The filing date does not determine the order of refunds.

Legal basis

Under Article 103 of Personal Income Tax Act 35/2006, the Tax Agency has a maximum of six months from the end of the voluntary filing period (usually 30 June) to order the refund. If that period is exceeded, it must pay late-payment interest without the taxpayer having to request it.

Statutory refund deadline: by 31 December if the return is filed on time.

How long does the Tax Agency usually take to issue a refund?

The Tax Agency has a highly efficient computerised system that can:

• Issue a refund within 7 to 15 days of filing if there are no issues.
• In many cases, make the payment within the first 48 to 72 hours after the campaign begins.
• Take between 1 and 3 months where manual checks are needed or discrepancies arise.
• Trigger additional checks where the refund is large (more than €3,000).

Why does the myth persist?

Two common beliefs have no basis:

• That the Tax Agency “runs out of money” as the campaign progresses.
• That filing later increases the risk of an inspection.

Both claims are incorrect. The Treasury and the Tax Agency plan refund cash flows in advance, and refunds are not processed in chronological order. What matters is whether the information in the return is internally consistent and its tax-risk level under automated checks.

Actual reasons a refund may be delayed

The Tax Agency may slow down a refund when:

• There are discrepancies between official tax information and the details supplied by the taxpayer.
• There are significant differences from previous tax years.
• Unusual or irregular income has been reported.
• The refund requested is large.
• There are errors in the taxpayer’s identification details or bank account.

Practical recommendations

• File once all information has been checked and verified.
• Carefully review all tax and personal details before confirming the draft return.
• Check the refund status through the AEAT’s electronic office or mobile app, using the “Processing status” or “VERIFICA” service.
• If the Tax Agency has not paid within six months after the end of the filing campaign, it must pay statutory interest.

Conclusion

It is not true that filing your personal income tax return in the final days means you will receive your refund later. Refunds are not ordered chronologically; processing depends on automated validation of the information and risk checks.

What really matters is whether the information is accurate, not when you file. The best approach is therefore not simply to file as early as possible, but to file correctly.