r/Spanishtaxes

Hey everyone,

I’m building a small side project called SalaryInSpain
It’s a free calculator for people moving to Spain who want to understand what their salary actually means after taxes.
The problem I’m trying to solve is simple: a lot of foreigners compare job offers using gross salary, but in Spain that can be confusing.

A €50,000 salary does not mean €4,166/month in your bank account.

You need to understand things like:

Spanish income tax / IRPF
Social Security contributions
12 vs 14 salary payments
regional tax differences
Beckham Law eligibility
self-employed / autónomo costs

So I built a simple website in English that estimates real net salary and explains the result without heavy tax jargon.

Link:

https://salaryinspain.com

Current features:
salary calculator for employees
Beckham Law calculator
self-employed calculator
regional comparison
practical guides about salaries and cost of living in Spain

The site is free, no login, no email required for the main calculators. I’m trying to keep it simple and useful before adding anything more complex.

What I’m unsure about:

1-Is the niche too small?

2-Does the homepage explain the value quickly enough?

3-Does it feel trustworthy enough for a finance/tax topic?

4-Is the design too plain or does it work?

5-Would you understand who this is for within 5 seconds?

6-How would you monetise this without making it feel spammy?

My current idea is SEO + useful calculators + guides, and later maybe affiliate links, paid relocation guides or leads for tax advisors.

Please roast the positioning, design, copy, trust signals, monetisation idea — anything.

I’d rather hear the brutal version now than build the wrong thing quietly for months.

Person lives in the Madrid community. Never worked before, it would be the first job from a small company that is located outside the EU. The payments would be paid via Wise or similar platforms already in euros into their ES IBAN bank account. The freelance could go on for just 2-3 months or be something longer like 14 months. No way to know.

What's the easiest and cheapest way to declare that money? Autonomo seems expensive and lots of red tape, is it the only way?

Basically I moved to Spain in September 2025 on a student visa….. I was running desperately low on funds so i kinda made an onlyfans acc in March this year (don’t judge me lol) i get paid direct deposit into my U.S. bank acc, so far, to date (from march - june) i’ve only made like $1,300 total.

But im just now realizing that since ive been here over 183 days, im going to have to file taxes here at the end of the year, and i wanna make sure im doing everything legit / complying with spanish tax laws and stuff…. should i have registered as autónomo 😳, is it too late? Can i register now and declare the previously earned income? i’m scared. someone help me pls.

I'm filing my Modelo 151 for 2025 (first year under Ley Beckham) and can't find a definitive answer on whether mandatory SS contributions are deductible from the taxable base. Found sources both saying one thing and the other. DGT Binding Ruling V1112-2025 suggests they're NOT deductible, but I've also found sources (Gestoría eMadrid, Entramites) claiming they are.

Has anyone here actually deducted SS contributions in their Modelo 151 in previous years?

Did AEAT ever flag it or send any correction/penalty?

Hay pocas cosas más españolas que discutir un impuesto patrimonial a partir de un caso extremo, convertirlo en regla general y después llamar “sentido común” a lo que en realidad es una intuición sin contrastar. El impuesto de sucesiones merece debate. Pero no el debate pobre que se suele tener. En 2023, Sucesiones y Donaciones recaudó 3.011 millones de euros en las comunidades autónomas de régimen común. Si se suman los territorios forales, la cifra ronda los 3.229 millones. Por lo tanto, sucesiones, no es un impuesto simbólico puesto que existe, recauda y afecta a decisiones familiares reales. Pero ese dato no significa que lo pague la mayoría de quienes heredan.

Recaudación no es incidencia. Un impuesto puede ingresar mucho dinero y estar concentrado en una parte relativamente pequeña de los contribuyentes. Esa distinción, elemental en cualquier discusión fiscal seria, desaparece casi siempre cuando se habla de sucesiones. Un informe oficial de Aragón sobre el periodo 2011-2017 da una pista útil: 215.976 autoliquidaciones de sucesiones; 45.126 con ingreso efectivo. Aproximadamente el 21%. En otras palabras: casi ocho de cada diez autoliquidaciones no terminaron pagando. Y el propio informe situaba en torno al 91% el porcentaje medio de declarantes del grupo II (descendientes, ascendientes y cónyuge) sin cuota efectiva en el periodo analizado.
Porque hay casos problemáticos: viviendas muy revalorizadas, poca liquidez, diferencias autonómicas difíciles de justificar, herederos no directos, patrimonios familiares que no son exactamente “ricos” pero tampoco encajan bien en los mínimos y reducciones. Esos casos merecen atención normativa, no caricaturas.
Pero la caricatura contraria también existe: la idea de que cada vez que muere alguien, Hacienda arrasa con la herencia familiar. Los datos no sostienen eso.

La pregunta adulta no es sucesiones ¿“robo” o “justicia social”? Ese debate es esteril. La pregunta que debería hacerse es quién paga, cuánto paga, dónde paga, con qué parentesco, con qué patrimonio y en qué supuestos el impuesto produce resultados desproporcionados. Discutir impuestos sin datos es cómodo. También es la forma más rápida de acabar defendiendo la política fiscal de otro sin darse cuenta.