SoftwareLegal360Software & AI for law firms and freelancers
Independent software analysis · Spain

Freelancing in Spain? Your invoicing software is about to become a legal matter.

We are SoftwareLegal360, an independent Spanish publication analysing invoicing, management and AI software for law firms, accountants and freelancers. Most of our content is in Spanish — this page is our English front door for the expat community.

Updated · October 2026
Home office desk with a laptop on a wooden table

Start here: VeriFactu in plain English

Mandatory from 2027 · Fines up to €50,000

Spain's new invoicing integrity system applies to every autónomo, whatever your nationality. Our English guide covers the real deadlines, the fines, how to spot genuinely compliant software — and how to comply for free.

Free calculators for autónomos

No signup · Instant results

The two questions every freelancer in Spain asks: what will Social Security take from me, and what's left after all taxes. Answered in seconds, in plain English.

Editor's picks for expat freelancers

Two tools, two different problems

They don't overlap: one keeps your invoicing legal in Spain, the other handles VAT when you bill clients abroad.

Invoicing in Spain · VeriFactu

STEL Order

From €0

Start at €0 — no card required — with VeriFactu-compliant invoicing built in, plus quotes, clients and a mobile app. Over 50,000 active users and a 4.9/5 average rating. Paid plans scale as you grow.

EU & international VAT · Online sales

Quaderno

Nº1 for VAT

Billing clients outside Spain? It calculates the correct VAT per country, validates VAT numbers in VIES and generates OSS-ready reports. Spanish company, English-friendly interface.

The rest of the site is in Spanish

40+ guides and comparisons

If your Spanish is up to it — or your browser translates — these are our most useful pages for freelancers:

Who we are

SoftwareLegal360 is an independent editorial project. We test and compare software, we publish our methodology openly, and we disclose every affiliate relationship: if you sign up through our links we may earn a commission at no cost to you. That never changes our conclusions. Nothing we publish constitutes legal or tax advice.

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