How to Calculate Your Quarterly VAT Without an Accountant
The modelo 303 (the quarterly VAT return) is the form you use to declare VAT every quarter. For many autónomos (self-employed workers) it’s the first tax obligation they face, and also the one that causes the most confusion at first. Not because it’s especially complex, but because nobody explains exactly what you need to fill it in or how the calculation works underneath.
The good news is that the calculation itself is simple. The tricky part, if there’s anything tricky at all, is having your data well organized before you sit down to fill it in.