SAF-T Portugal 2027: what the accounting mandate means for freelancers (probably nothing)

Portugal has two completely different SAF-T obligations, and the one making headlines for 2027 almost certainly does not apply to you if you are a freelancer on the simplified tax regime.

That distinction matters because the search results for "SAF-T 2027" read like an emergency for everyone with a business in Portugal. It is not. The 2027 mandate is about accounting SAF-T, which is a separate obligation from the invoicing SAF-T your certified invoicing software already handles.

Here is what is actually changing, and who it affects.

The two kinds of SAF-T in Portugal

SAF-T (Standard Audit File for Tax) is a standardised file format AT uses to audit business records. Portugal has implemented it in two separate contexts:

Invoicing SAF-T is the file your certified invoicing software generates to communicate invoice data to AT. Every invoice you issue through a certified system creates a record in this format. How it reaches AT depends on your software. On the webservice channel each document is communicated as you issue it and there is nothing to send. On the file channel you upload a SAF-T at the Portal das Finanças by the 5th of the following month, which is a monthly job you own, and the webservice is commonly a paid tier, so a free plan usually means the file channel whether you noticed or not.

Accounting SAF-T is something different. It is derived from your full accounting records under the SNC (Sistema de Normalização Contabilística, Portugal's accounting standards framework). It includes your chart of accounts, all journal entries, accounts receivable and payable, and your balance sheet movements. Some entities are required to submit it as part of their annual tax compliance.

The 2027 mandate is about accounting SAF-T. It applies to tax periods from 2027, and the first file is delivered in 2028 alongside the IES, so nothing is submitted during 2027 itself. Treat those dates as the current answer rather than a settled one: this obligation has been deferred repeatedly since the 2017 period.

Who is affected by the 2027 accounting SAF-T requirement

The accounting SAF-T obligation applies to taxpayers who keep organised accounting (contabilidade organizada). This includes:

• Companies (Lda, SA, and other legal entities)
• Self-employed workers (trabalhadores independentes) who are required to maintain organised accounting because their revenue exceeds the simplified regime ceiling of €200,000 per year

If you are a trabalhador independente on the simplified tax regime (regime simplificado, which covers the vast majority of freelancers in Portugal earning under €200,000 in annual revenue), you are in simplified accounting, not organised accounting. The 2027 accounting SAF-T requirement does not apply to you.

This is the part missing from most articles on the topic: the audience that reads "SAF-T 2027 Portugal freelancers" is mostly outside the requirement being discussed. Not exempted from it, never in scope for it, which is a different thing and a more comfortable one.

What being outside the mandate means in practice

On the simplified regime, AT calculates your taxable income using a coefficient applied to your gross revenue: 75% for the professions listed in the Art. 151 table, less for some others. You do not maintain the double-entry ledger an accounting SAF-T is generated from, so there is nothing for that file to be derived from.

Your obligations remain:

• Issue certified invoices through a certified invoicing system (AT requirement, not related to the 2027 mandate)
• File your annual IRS return (Modelo 3, Anexo B)
• File VAT returns if you are registered for IVA (Declaração Periódica)
• File your quarterly Social Security declarations, and pay the monthly contributions they set

None of these change because of the 2027 accounting SAF-T mandate.

When the accounting SAF-T obligation would apply to you

You would move into scope if:

• Your annual revenue goes past €200,000, which moves you to organised accounting. Exceeding it once is not automatically the trigger, and which year the switch bites is a question for your accountant
• You voluntarily opt into organised accounting (uncommon for freelancers, and there is generally no reason to unless you are structuring for investment or financing)
• You operate through a company rather than as a self-employed individual

If you have crossed €200,000 or are planning to form an Lda, your accountant (contabilista certificado) will know about the accounting SAF-T requirements and handle the setup. This is standard work for a CC managing organised accounting clients.

What Descodify already handles

The SAF-T file that certified invoicing software generates (the one AT requires for invoice verification and can request during an audit) is already handled automatically. Every invoice you issue through Descodify is recorded in the invoicing SAF-T format. The ATCUD is not a receipt, and it is worth knowing why: it reads {série validation code}-{sequential number}, and that validation code is issued for the série before its first invoice exists. It says the série is registered, never that this document reached AT. Whether a given invoice was communicated is a separate state, which is why Descodify shows it per document. If AT ever requests your invoicing SAF-T export, you can generate it from Descodify.

The 2027 accounting SAF-T changes nothing about this. Invoicing and accounting are parallel reporting tracks in Portugal, and certified invoicing software handles the invoicing track.

If you are unsure which regime you are on

The annex you file with your Modelo 3 is the tell. Category B income on the simplified regime goes on Anexo B; organised accounting goes on Anexo C. Anexo SS, which every trabalhador independente files, carries the regime directly as a tick in Quadro 1: simplificado, organised accounting, or fiscal transparency. If a contabilista certificado files a full balance sheet for your own Category B activity, you are in organised accounting. A balance sheet for a company you own is a different thing and says nothing about your personal regime.

When in doubt, ask your accountant directly: "Am I required to submit an accounting SAF-T file under the 2027 rules?" A CC can confirm your exact obligations in one sentence.

The short version

The 2027 SAF-T mandate is for accounting SAF-T, which is derived from full ledger-based accounting. Freelancers on the simplified tax regime do not keep that kind of accounting, so the mandate does not reach them. Your invoicing SAF-T (the one your certified invoicing software generates) is already compliant and is not affected by the 2027 changes.