Free tools
We want to make your life easier.
Free tools built for freelancers like you. Calculate, compare and decide with confidence. No sign-ups, no complications.
How much do I need to invoice?
Tell us what you want to take home each month and we'll work out the revenue you need, broken down into social security, IRPF and expenses.
Open calculatorHow much should I charge per hour?
Work out your minimum and recommended hourly rate from your target net income, your billable hours and your fixed costs.
Open calculatorFreelance vs employed
Compare what you actually take home as a freelancer and as an employee on the same gross income, once social security and IRPF are deducted.
Open calculatorPersonal income tax (IRPF) simulator
Estimate the IRPF due on your annual net earnings, broken down by bracket and effective rate.
Open calculator2026 tax calendar
Every 2026 deadline for freelancers in Spain: Form 303, Form 130, the annual income tax return and the annual summaries.
Open calculatorVeriFactu by region
Check which verifiable invoicing system applies to you — VeriFactu or TicketBAI — depending on where you're registered.
Open calculatorIAE code finder
Describe what you do and we'll tell you the most likely IAE activity code, telling product sales, services and professional activity apart.
Open calculator2026 self-employed contribution calculator
Work out your monthly self-employed social security contribution from your real earnings and the official 2026 brackets.
Open calculatorInvoice VAT and IRPF calculator
Enter the taxable base and the VAT and withholding rates, and we'll tell you the total your client pays.
Open calculatorHow much should I set aside for taxes?
Find out how much of what you invoice is really yours once VAT, IRPF and your social security contribution are out of the way.
Open calculatorWhich tax forms do you need to file?
Pick your VAT and IRPF regime and find out which returns apply to you, and when you have to file them.
Open calculatorWhat if you didn't have to calculate anything?
autonomia360 calculates your taxes from your real activity and a certified tax advisor files them for you.