If you are a freelancer or own an SME in Spain, managing VAT is likely a key fiscal focus. But what happens when your business combines activities that are subject to VAT with others that are exempt? This is where one of the most specific tax regulations comes into play: the VAT prorrata rule.
Understanding it is crucial for correctly deducting input VAT and avoiding surprises from the Spanish Tax Agency (AEAT). We'll explain clearly when and how you should apply it.
When Does the Prorrata Rule Apply?
The prorrata rule is mandatory when a professional or company simultaneously carries out two types of operations:
1. Operations that grant the right to deduct VAT: These include most sales of goods and services, subject to the standard (21%), reduced (10%), or super-reduced (4%) VAT rates.
2. Operations that do NOT grant the right to deduct VAT: These are known as exempt operations, such as certain educational or health services, renting residential property to individuals, or some financial and insurance transactions.
If all your activities are subject to VAT or all are exempt, you don't need to worry about the prorrata. The issue arises from the "coexistence" of both, as you can only deduct the input VAT on expenses related to activities that charge output VAT. The prorrata is the mechanism that determines what percentage of that common input VAT is deductible.
Types of Prorrata: General and Special
There are two methods for calculating the deduction percentage.
General Prorrata
This is the default method. It involves calculating a single deduction percentage for all input VAT incurred during the year. The formula is:
(Turnover from operations with deduction rights / Total turnover) x 100 = Prorrata percentage
This percentage is applied provisionally throughout the year (using the previous year's data) and is adjusted in the final VAT return of the year (Form 303 for Q4 and the annual summary Form 390) with the definitive percentage for the fiscal year.
Special Prorrata
This method allows for (and sometimes requires) greater precision. It works as follows:
* You deduct 100% of the input VAT on purchases and expenses exclusively linked to activities with deduction rights.
* You deduct nothing (0%) of the input VAT on expenses related solely to exempt activities.
* You apply the general prorrata percentage to the input VAT on common expenses—those that cannot be allocated to one specific type of activity.
The special prorrata is mandatory if, by applying the general rule, the amount of deductible VAT exceeds by 10% or more the amount that would result from applying the special rule. You can also voluntarily opt for it if it is more beneficial for you.
The Prorrata and New VeriFactu Invoicing Rules
Although the prorrata rule itself is not changing, its correct application depends on impeccable records of income and expenses. With the arrival of verifiable invoicing systems, as required by the VeriFactu system (mandatory for freelancers from July 1, 2027), maintaining this accounting will be simpler and more secure. Adapted software will allow you to classify each expense invoice according to the activity it relates to, greatly simplifying the prorrata calculation. To learn more about this new system, we recommend reading our **VeriFactu Guide for Freelancers: Complete Manual**.
In summary, the prorrata is a fundamental calculation if your business has this duality of activities. Managing it correctly not only ensures compliance with the AEAT but also optimizes the amount of VAT you can recover.