Being a freelancer or managing an SME in Spain involves a series of tax responsibilities that can often be complex. A small error can lead to penalties or problems with the Spanish Tax Agency (AEAT). With the current reference date of 2026-08-27, it is crucial to stay up-to-date and avoid common pitfalls.
1. VAT (IVA) Errors: Declaration and Deduction
One of the pillars of business taxation is Value Added Tax (IVA). Common errors include:
* Incorrect VAT rate application: Using the general rate (21%) when the reduced (10%) or super-reduced (4%) rate applies, or vice versa.
* Improper deduction: Deducting VAT from expenses not directly related to the economic activity or that do not meet legal requirements (e.g., restaurant expenses without proper justification).
* Forgetting quarterly or annual submissions: Failing to meet deadlines for Forms 303 and 390.
2. Personal Income Tax (IRPF) Deduction Mistakes
For freelancers, the Income Tax declaration (IRPF) is another source of frequent errors:
* Deducting personal expenses: Mixing personal and professional finances, deducting expenses not strictly related to the business activity.
* Lack of justification: Not keeping invoices or receipts to substantiate deductible expenses. The AEAT may require them.
* Confusing expenses with amortization: Not differentiating between a current expense and the amortization of investment goods.
3. Failure to Meet Deadlines and Periodic Obligations
The Spanish tax calendar is dense. Forgetting a key date for submitting forms (VAT, IRPF, retentions, annual summaries) is a common cause of fines. It is vital to have a reminder system or outsource this management.
4. Incorrect Invoicing and the VeriFactu Era
Invoices are the foundation of your accounting. Errors such as missing mandatory data (NIF, address, correlative number, date, VAT breakdown) are common. However, the biggest novelty is the Anti-Fraud Law and the VeriFactu system.
From January 1, 2027, companies must use invoicing software adapted to VeriFactu, and freelancers (autónomos) and micro-SMEs will have until July 1, 2027, to adapt. This means your invoicing system must be capable of sending invoicing records to the AEAT securely and unalterably.
To prepare, it is essential to evaluate your current software. You will need a solution with a robust API VeriFactu or one that allows for simple ERP VeriFactu integration. Many wonder how to migrate: there are options to import Factusol to VeriFactu, import Sage 50, import Holded, or even import Excel to VeriFactu to compatible platforms. Don't wait until the last minute to understand when VeriFactu is mandatory and how it will affect VeriFactu for freelancers.
5. Not Separating Personal and Business Finances
This error greatly hinders accounting and expense justification, in addition to complicating financial decision-making. Maintaining separate bank accounts is an essential practice.
Conclusion
Avoiding these tax errors will not only save you money in penalties but also provide peace of mind. The key lies in information, organization, and, if necessary, having the right tools. Fakturia.es offers invoicing solutions adapted to the Anti-Fraud Law and VeriFactu, facilitating compliance with your tax obligations.