As a freelancer or SME in Spain, tax management can be a labyrinth. Often, small oversights or a lack of up-to-date information can lead to penalties or, worse, an unnecessary tax burden. With the reference date of 2026-08-28 and the imminent implementation of electronic invoicing, staying informed is crucial.
1. Not Knowing Eligible Deductions and Expenses
One of the most widespread errors is failing to deduct all entitled expenses. This can range from home office supplies if you work from home, to per diems, mileage, or training. It's essential to keep thorough records and retain all invoices and receipts. Not deducting correctly means paying more taxes than necessary.
2. Incorrect VAT Management
VAT (IVA in Spain) is one of the tax figures that causes the most headaches. Common errors include:
* Incorrect application of tax rates: General, reduced, or super-reduced.
* Failure to submit quarterly (Modelo 303) or annual (Modelo 390) declarations on time.
* Errors in reverse charge mechanism or intra-community operations.
* Not maintaining proper control of issued and received invoices.
3. IRPF (Income Tax) Oversights
For freelancers, Personal Income Tax (IRPF) is key. The most common mistakes are:
* Not adjusting withholdings properly: This can lead to an overpayment or underpayment in your annual tax return.
* Errors when choosing between direct estimation (simplified or ordinary) or objective estimation (modules). Each regime has its peculiarities, and not choosing the most advantageous one can make a significant difference.
4. Failing to Adapt to Electronic Invoicing and VeriFactu
This is the most critical error to avoid in the coming months. Spain's Anti-Fraud Law and the VeriFactu regulation (Invoicing Verification System) are just around the corner.
* Deadlines: Companies must adapt by January 1, 2027, and freelancers/micro-SMEs have until July 1, 2027, to implement the mandatory electronic invoicing system.
* Consequences: Non-compliance with this regulation can result in significant VeriFactu fines.
* Technology: It is vital that your invoicing software is ready. This involves understanding the VeriFactu API to ensure communication with the AEAT. If you use an ERP, VeriFactu ERP integration will be key. Many management systems like Factusol, Sage 50, or Holded will require a VeriFactu gateway for software or a deep update to allow importing Factusol to VeriFactu, importing Sage 50, or importing Holded in a compatible way. Even if you manage your data in Excel, the ability to import Excel to VeriFactu will be essential to avoid manual entry and errors.
For more information, consult our guide on VeriFactu for freelancers.
5. Lack of Tax Planning and Professional Advice
Improvisation is the worst enemy of good fiscal health. Failing to plan quarterly payments, not anticipating legislative changes, or not seeking professional advice when necessary can lead to stressful situations and unexpected costs.
Conclusion
Being well-informed and having the right tools is the best defense against tax errors. Digitalization, with VeriFactu at the forefront, is not just an obligation but an opportunity to optimize your management. At Fakturia.es, we offer invoicing software adapted to the Anti-Fraud Law and VeriFactu, designed to simplify your daily tax management.