How it started
For the longest time, I was delulu thinking “I will thrive in Spain, this is my moment!”
Noooot until I got hit with the reality. The actual logistics of moving and living in Spain. When I really had to look into my financials and see, what am I really working with here? Strip myself of all the positive thinking, what am I left with?
That’s when I saw the amber alert hovering around the corner. I was going to be walking on thin ice if I didn’t get serious about what my finances actually looked like over there. If I’m not careful, this dream could turn into a nightmare real quick.
The good news? I caught it before I landed. I sat with myself. Really looked through all my requirements. Audited everything, mentally, physically, financially. FINANCIALLY. The final boss of them all.
Getting there meant scouring the internet, joining every expat group and subreddit I could find, talking to people who’d already made the move, and piecing it all together manually.
At some point I thought: what if I didn’t have to do it this way? What if instead of a spreadsheet I’d never open again, I had something that actually showed me different scenarios based on my real income, my real profile, my real expenses? Something with ceilings, comparisons, reality checks built in?
That’s how this calculator was born. And if you’re in those same Reddit threads, the same FB groups, the same loop of scattered information, this is my attempt to make that process a little less painful for you.
What it does
This isn’t a generic tax estimator built for Spanish employees. It’s built specifically for autónomas — self-employed digital nomads — with the actual variables that matter for your situation.
Tax regime toggle
Switch between Standard IRPF and Beckham Law and see instantly which one saves you more at your income level. The calculator uses real 2026 progressive tax brackets for all 17 Spanish regions.
Social Security: Year 1 vs Year 2+
The tarifa plana gives newly registered autónomas a reduced SS rate of around €88/month for the first 12 months. After that it jumps. The calculator shows the Month 13 cliff so you’re not caught off guard when it hits.
Income and rent scenarios
Set three income scenarios: current, minimum, and what thriving actually looks like. Set three rent scenarios: best case, worst case, and realistic middle. See exactly how each combination affects what’s left at the end of the month before you sign a lease or book a flight.
Full expense breakdown
Fixed and variable expenses, all editable. Add your gestor fees, coworking, subscriptions, transport. The calculator builds your complete monthly picture.
Verdict banner
No ambiguity. The banner tells you immediately: comfortable, tight, or deficit. Then the metric cards break it down — gross income, tax, take-home, and what’s actually left after everything.
Runway calculator
Enter your savings and see how many months you could sustain yourself if income stopped. Because knowing your floor matters as much as knowing your ceiling.
Donut chart breakdown
Visual split of where your money goes: tax, fixed expenses, variable expenses, and surplus. Because sometimes you need to see it to actually believe it.
Auto-saves to your browser
No account needed. No server. Open the file, enter your numbers, close it, come back next week and everything is exactly where you left it.
What makes it different
Most expat finance tools online are generic. Built for salaried employees or using placeholder numbers that have nothing to do with your actual situation.
This one was built by someone going through the same process, with the same questions, and the same need for real answers. Not estimates from a tool that wasn’t designed for this at all.