Freelancing in Portugal: Tax Mistakes, Activity Regimes & NHR
- INLIS Consulting
- Oct 21
- 4 min read
Planning to work as a freelancer in Portugal? Discover the biggest freelancing mistakes, tax paradoxes, how to choose the right activity regime, and why expert guidance from INLIS Consulting is essential to avoid penalties and save thousands in taxes.

Why Freelancing in Portugal Is Booming (and Risky)
Portugal has become one of Europe’s top destinations for digital nomads, consultants, designers, IT professionals, and creatives. With attractive tax benefits such as the Non-Habitual Resident (NHR) regime and flexible remote work culture, freelancing seems like the perfect option.
However, most freelancers make critical mistakes in their first year, which can lead to unexpected tax bills, fines, or even legal issues. The Portuguese tax system is full of paradoxes; what appears simple on the surface becomes complex once you start issuing “recibos verdes” (green receipts) and declaring income.
This blog will give you a real, in-depth understanding of:
The most common mistakes freelancers make
The paradoxes that affect your tax rate and income
How to choose the correct activity regime (CAE/IRS Code + Tax Regime)
How INLIS Consulting can help you avoid financial losses and stay compliant
Part 1: The Most Common Freelancing Mistakes in Portugal
Mistake 1: Registering with the Wrong Activity Code
Many freelancers choose a generic CAE code without understanding that each code has its own taxation percentage.
Why this matters: Choosing the wrong code can instantly increase your taxable income—even if your earnings stay the same.
Mistake 2: Picking the Wrong Tax Regime
Portugal offers two main regimes:
👉 Choosing the wrong regime could mean paying thousands more in taxes every year.
Mistake 3: Misunderstanding Social Security (Segurança Social)
New freelancers receive a 12-month exemption, which many misinterpret as “free year.” However, you are still required to register and will automatically begin contributions in year two.
Standard social security rate: 21.4% of income
Failure to register → penalties
Mistake 4: Believing the NHR Regime Exempts Everything
The NHR regime does not automatically exempt all foreign income. Depending on your double taxation treaty and activity classification, you may still owe tax in Portugal.
Mistake 5: Not Keeping Proper Invoices and Expense Records
Freelancers often underestimate the importance of documentation in Portugal. The tax authorities frequently audit independent workers.
Part 2: The Surprising Paradoxes of Freelancing in Portugal
Part 3: Understanding Freelancer Activity Regimes in Portugal
When registering as a freelancer, you must make two key decisions:
1. Choose Your Activity Classification (CAE / IRS Code)
Examples of common freelancer codes:
CAE 74100 – Design & Creative Services
CAE 62090 – Web Development & IT Consulting
CAE 70220 – Marketing & Business Consulting
Liberal Professions Code (IRS Code 1519) – Technical or Scientific Professionals
2. Select Your Tax Regime
Simplified Regime (Regime Simplificado) – Easy setup, limited deductions
Organized Accounting (Contabilidade Organizada) – Requires a certified accountant but offers tax deductions
Why Choosing the Right Regime Is Crucial
Impacts how much of your income is taxed
Determines your eligibility for NHR benefits
Influences future EU compliance if you apply for visas, grants, or residency renewals
Improper registration can lead to heavy fines and audits
INLIS Consulting specializes in helping freelancers choose the correct regime specific to their income type, nationality, and tax strategy.
Real Example: Tax Impact Based on Activity Choice
Savings: Over €3,000 per year simply by choosing the right regime and activity code!
How INLIS Consulting Helps Freelancers Succeed in Portugal
Services Specifically for Freelancers:
Registering your freelancer activity correctly
Choosing the optimal tax regime (Simplified vs Organized)
Applying and managing NHR status
Issuing Recibos Verdes and invoicing correctly
Tax returns, VAT, and social security management
International income tax planning (EU, UK, US clients)
INLIS Consulting is the only firm in Portugal specializing in helping expat freelancers go from confusion to compliance while maximizing tax benefits.
Don’t Risk Your Freelance Career in Portugal
Most freelancers don’t realize they made a mistake until they get a letter from Finanças demanding payment or an audit. Don’t wait for that moment.
Get professionally registered
Avoid penalties and over-taxation
Optimize your financial future in Portugal
Speak to a tax consultant at INLIS Consulting today. Email: geral@inlis.pt | 📞 WhatsApp: +351 968 464 906🌐 Visit: www.inlis.pt
Freelancing in Portugal can be one of the best lifestyle and career decisions you ever make, but only if you set things up correctly from the start. Choosing the right activity regime and tax structure is not just a formality; it directly impacts your income, legal compliance, and long-term financial success.
With the right guidance from INLIS Consulting, you can avoid mistakes, reduce your taxes, and enjoy the true benefits of being a freelancer in Portugal.




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