🇵🇹 Self-employed · ENI

Invoice in Portugal as a sole trader.

The simplest, lowest-cost way to work and invoice legally in Portugal, set up as a self-employed sole trader (Empresário em Nome Individual). We arrange your NIF, open your activity at Finanças and register you with Social Security, so you can bill clients from day one. No company, no share capital.

Fee
By quote
Timeline
A few days
Where
100% remote
Share capital
None required

What you're setting up

The freelancer's route in.

An ENI (Empresário em Nome Individual) is a self-employed sole trader. There's no separate company: you invoice under your own name and NIF once you've opened an activity (início de atividade) at the tax office (Finanças). It's the fastest, cheapest way to become a legitimate freelancer or small-business operator in Portugal, no Articles of Association, no share capital, minimal admin.

The trade-off is liability. As an ENI, you and the business are the same legal person, so your personal assets are exposed to business debts. That's fine for many freelancers and small activities, but if you're taking on real risk, partners or growth, a limited company (Lda) may protect you better. We tell you honestly which fits.

Fast & simple

No incorporation, no notary, no capital, just an activity opened at Finanças.

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Invoice legally

Issue compliant Portuguese invoices under your own NIF from day one.

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Low cost

The most affordable way to be self-employed, no company running costs.

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Upgrade later

Start as an ENI and convert to a company as you grow, we handle that too.

ENI or company?

Which one is right for you?

The honest comparison. The right structure depends on your risk, your income and your plans, we confirm it with you before anything starts.

 Sole trader (ENI)Company (Lda)
Legal statusYou and the business are the sameA separate legal person
Personal liabilityUnlimited, your assets are exposedLimited to the share capital
Share capitalNone requiredFrom €1 per shareholder
Setup speedA few daysTypically 2–4 weeks
Admin & accountingLighterFull company accounting
Best forFreelancers, small solo activities, testing an ideaHigher risk, partners, investors, growth

Prefer the protection of a limited company? See Portugal company formation (Lda).

Pricing & what's included

Quoted to your situation.

Because a sole-trader setup depends on whether you already have a NIF, your country of residence, and the activity you're registering, we quote it to your case rather than showing a one-size price. It's always a clear fixed fee, confirmed before you pay, and typically well below the cost of forming a company.

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NIF, if you need one

Your Portuguese tax number arranged, with fiscal representation for non-EU residents.

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Activity opening

Your início de atividade filed at Finanças, with the right activity (CAE / CIRS) codes.

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Social Security

Registration with Segurança Social so your self-employed status is in order.

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VAT guidance

Advice on the simplified vs organised regime and whether you charge IVA (VAT).

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A real specialist

One person handles your file and explains your obligations in plain language.

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Tracked & delivered

Confirmation and your registration details, ready so you can invoice.

How it works

Invoicing in days.

1
Step 1 · Foundations

NIF & representation

If you don't already have a Portuguese NIF, we arrange it, with fiscal representation if your tax address is outside the EU/EEA, and prepare a power of attorney so we can act for you.

2
Step 2 · Your activity

Choose your activity codes

We confirm the correct activity classification for what you do, and whether the simplified or organised tax regime fits you best.

3
Step 3 · Registration

Open your activity at Finanças

We file your início de atividade with the tax authority and register you with Social Security, formally starting your self-employment.

4
Step 4 · Ready to bill

Invoice your clients

You receive your registration details and can issue compliant Portuguese invoices under your NIF. We explain your ongoing filing and Social Security obligations.

What you'll need

Have these handy.

A clear passport or national ID
Proof of address (utility bill or bank statement, under 3 months old)
Your NIF, if you have one, we arrange it, and fiscal representation, if you don't
A short description of the activity you'll invoice for

You won't need everything to start, once you send your request, we collect documents one step at a time through a secure, encrypted upload. No loose email attachments.

Start your request

Request your sole-trader setup.

Free and no obligation. Sign in or create a free account, tell us about your activity, and a specialist confirms your fixed price and next steps, usually within one business day.

FAQ

Good questions, answered.

An ENI (Empresário em Nome Individual) is a self-employed sole trader. There's no separate company, you invoice under your own name and NIF after opening an activity (início de atividade) at Finanças. It's the simplest legal way to freelance or run a small activity in Portugal.
An ENI is simplest and cheapest, but carries unlimited personal liability, your own assets back the business. An Lda is a separate legal person with liability limited to its capital, better if you're taking on real risk, working with partners, or planning to grow. We'll tell you honestly which fits your situation.
Início de atividade is the declaration you make to the tax authority (Finanças) to start being self-employed, choosing your activity codes and tax regime. Once it's filed and you're registered with Social Security, you can invoice legally. We handle the filing for you.
Yes, you invoice under your NIF, so you need one before opening an activity. If you don't have a NIF yet, we arrange it (with fiscal representation for non-EU residents) as part of the setup.
Yes, with your NIF and a power of attorney we open your activity at Finanças and register you with Social Security remotely. You can be invoicing without ever flying in.
Yes. Many people start as an ENI and move to an Lda as their income or risk grows. We can incorporate a company for you and guide the transition when the time is right.

Carreh assists with the preparation and submission of sole-trader registration and arranges NIF and fiscal representation. Final registration rests with the Portuguese tax and social-security authorities. Your fee is confirmed in your quote before you pay.