Business Billing Guide

VAT returns in Portugal 2026

Publication: 28/07/2026 Updated: 28/07/2026 Reading time: 18 min

If you have an active Portuguese IVA number, correct VAT declarations abroad are based on the declaração periodica, e-Fatura and SAF-T reconciliation and EU transaction control.

This guide covers deadlines, specific declaration fields, Annex R, nil returns, corrections, and IVA payments. If you don't have a VAT number yet, start by registering for VAT in Portugal.

The most important data

VAT returns in Portugal

Basic formof Declaração periódica
Declaration deadlineis the 20th day
Payment dueby the 25th day
Billing periodmonth/quarter
Declaration and payment currencyEUR
In short

VAT returns in Portugal – what needs to be settled?

The basic form is the electronic declaration of the periodic tax (IVA). However, the form itself does not eliminate obligations: depending on the transaction, the company may need a summary declaration, Annex R, e-Fatura, SAF-T (PT), Intrastat, or OSS/IOSS settlement.

The most important declarations and reports related to the Portuguese IVA
DutyWhat is it for?When can it apply to a foreign company?
Declaração periódica IVAIt settles VAT due, input, corrections, amount to be paid or credit.With an active number in the Portuguese standard system.
Declaração recapitulativaReports on specified B2B deliveries and services to other EU countries.When transactions covered by the EU report occur.
Anexo RDistributes specific regional operations between mainland Portugal, the Azores and Madeira.When your business covers more than one tax region.
Attachments to fields 40 and 41They document selected regularizações, i.e. VAT corrections.If the type of correction requires an appropriate attachment.
e-Fatura / SAF-T (PT)Provides invoice data and accounting files; does not replace VAT returns.For documents issued or reported in Portugal.
Intrastat / OSS / IOSSIt handles commodity turnover statistics and selected B2C transactions, respectively.When the conditions of a given system are exceeded or when a special procedure is selected.
Scope of obligation

Who files VAT returns in Portugal?

Generally, this obligation applies to taxpayers with active registration under the standard IVA system. Returns are filed for the assigned periods until the effective termination or change of status—even if there were no sales during the period.

Active IVA taxpayer

He submits a periodic declaration monthly or quarterly according to the assigned procedure, also for the period without surgery.

Company with warehouse or import

It can report ITC of own goods, domestic sales, imports, or deliveries to other EU countries. One VAT number does not mean one type of report.

Non-resident using reverse charge

If all local transactions are indeed settled by the buyer and the company has no other obligation, a standard declaration may not be necessary. However, the entire model, not a single invoice, should be examined.

Do not confuse declaration with registration

This guide covers settlements after obtaining the number. Documents, tax representation, and the procedure for obtaining the ID are described separately in the article VAT Registration in Portugal 2026.

Billing period

Monthly or quarterly declaration?

The basic criterion is the turnover from the previous calendar year. Article 41 of the Portuguese IVA Code sets a threshold of €650,000.

≥ 650,000 EUR

Monthly settlement

This generally applies when the previous year's turnover was at least EUR 650,000. The monthly procedure also applies to taxpayers who use the import VAT declaration and are entered in the monthly returns register.

< 650,000 EUR

Quarterly settlement

Generally, this applies to turnover below €650,000. Taxpayers can opt for monthly settlement; for existing businesses, the change is generally reported in January.

New activity

The mode is determined based on the turnover forecast for the current year.

Incomplete year

Turnover for part of a year is converted into an annual value.

Voluntary monthly mode

From July 1, 2025, the election remains valid until effectively changed; a return to quarterly mode requires an update in January.

2026 Calendar

VAT declaration deadlines in Portugal

The periodic declaration is generally submitted by the 20th day of the second month following the billing month or quarter. The shipping and payment deadlines are separate.

Examples of declaração periódica terms in Portugal
PeriodDeclaration deadlineMaturityComment
January 2026March 20, 2026March 25, 2026Monthly settlement.
Q1 2026May 20, 2026May 25, 2026Quarterly settlement.
June 2026September 21, 2026September 25, 2026Statutory September 20 falls on a Sunday; the AT calendar shows September 21.
Q2 2026September 21, 2026September 25, 2026Special rule for the second quarter and shift to a business day.
December 2026February 20, 2027February 25, 2027Please check the date again in the 2027 calendar.
4th quarter of 2026February 20, 2027February 25, 2027The deadline is next year.
No sales

Is there a zero VAT return in Portugal?

Yes. An active taxpayer in the normal system generally submits a periodic declaration also for the period in which they did not perform reportable transactions. This obligation arises from Article 29 of the IVA Code.

No invoices always means zero

Check imports, intra-Community acquisitions, services purchased from foreign contractors, corrections and transferred VAT credits.

Failure to declare does not mean that registration is not complete

The obligation lasts until the effective closure or change of status in the Portuguese system.

Automatic declaration has a limited scope

Do not assume that Portal das Finanças will itself settle the period without transactions for each taxpayer.

Declaração periódica automática from July 1, 2025.

For specific groups of taxpayers, the Tax Agency (AT) provides a provisional declaration. If it covers the entire tax due, it can be approved. In some zero-year periods, it may be deemed filed after the deadline, but only if the conditions of Article 29-A of the IVA Code. A foreign company with a warehouse, import, or intra-Community acquisition of goods (ICA) should verify the completeness of the data rather than relying on automatic submission.

Portal das Finanças

How to file a VAT return in Portugal?

The declaration is submitted electronically via the Portal das Finanças. Access to the portal and the technical feasibility of submission do not replace verification of the source data.

  1. Select the taxpayer and period. Check the Portuguese NIF and month or quarter.
  2. Confirm the frequency. Don't rely solely on the settings in your accounting software.
  3. Reconcile sales and purchases. Compare ledgers, invoices, credit notes, inventory, and customs documents.
  4. Separate regions. Verify mainland Portugal, the Azores, and Madeira.
  5. Classify transactions. Separate domestic sales, intra-Community acquisitions (ICD), intra-Community acquisitions (ICT), exports, imports, and reverse charges.
  6. Check e-Fatura and SAF-T (PT) data. Clarify differences before shipping.
  7. Complete the declaration and attachments. Add Annex R or correction attachments, if required.
  8. Verify additional reports. Evaluate the declaration of recapitulativa, Intrastat, OSS, or IOSS.
  9. Send and save your proof. Save the confirmation and final version of the data.
  10. Pay and verify your payment. Use the correct payment details, then check your balance in the portal.
Basic form

What does the declaração periódica IVA cover?

The form leads from the tax base and output tax through input VAT and corrections to the amount to be paid, credit for the next period or refund application.

Sales and VAT payable

  • domestic sales at appropriate rates,
  • exempt operations, ICT and export,
  • Intra-Community acquisition of goods and services settled by the buyer,
  • local reverse charge mechanisms.

Purchases and VAT charged

  • current goods and services,
  • fixed assets and other deduction categories,
  • Import VAT settled in the declaration,
  • limitations and deduction proportion.

Period result

  • corrections of output and input tax,
  • credit carried over from the previous period,
  • amount to be paid or transferred,
  • request for a refund if the conditions are met.
Filling out the form

How to fill in specific fields of the VAT declaration in Portugal?

Fields are selected based on the nature of the transaction and the form version appropriate for the period. The map below includes fields that frequently require additional checks by foreign companies; it does not replace the full instructions for the current form.

Practical map of selected fields declaração periódica IVA
Field / partWhat to prove?What should be agreed before shipment?
Domestic sales by ratesTax bases and VAT payable by region and applicable rate.Invoices, due date, place of taxation, rate and credit notes.
ICT, export and exempt operationsThe value of the transaction in the category corresponding to the basis for exemption.Contractor's VAT number, transport proof, customs documents and EU report.
Intra-Community acquisitions and services purchased from abroadThe base and the output tax from the reverse charge, and if there is a right to deduct, also the input VAT.Tax date, rate, type of benefit and scope of the right to deduction.
Field 18The value of imports settled by the declaração periodica pursuant to Article 27, paragraph 8.Customs office, settlement number and date and import value.
Field 19IVA calculated by the customs administration for imports entered in box 18.The VAT amount from customs data and documents confirming any change.
Field 40Selected regularizações increasing the score on the side specified in the current form instruction.Legal basis, event period, correction document and required attachment.
Field 41Selected regularizações reducing the result on the side specified in the current form instructions.Correction conditions, evidence and compliance with the annex to field 41.
Score and creditBalance to be paid, transferred or refunded.Credit from the previous period, adjustments and account history on the portal.
Fields 18 and 19

Import IVA by declaration

AT provides details of the values ​​assigned to imports, including the customs office code, settlement number and date, import value, and IVA. A taxpayer can only change the details if they have the documents confirming the change. See AT's explanation for fields 18 and 19.

Fields 40 and 41

Not every correction goes into these fields

First, determine whether you're correcting an error in the original return or recording a subsequent event, such as a credit note, price change, bad debt, or correction to a deduction. Only then select the period, field, and attachment.

Regional settlement

Anexo R: Mainland Portugal, Azores and Madeira

Portugal's autonomous regions have their own IVA rates. Anexo R is used to appropriately separate operations when business spans more than one tax area.

Determine the site of surgery

Don't assign a region solely based on the customer's address. Verify the tax location rules and the actual transaction flow.

Agree on the rate and document

The region on the declaration must correspond to the rate on the invoice, accounting entries and data transferred to e-Fatura.

Check the checksums

Regional values ​​should lead to a result consistent with the main declaration and sales records.

Scenarios

How to report typical transactions of a foreign company?

The following examples illustrate the audit process. The final outcome depends on the facts, documents, tax liability date, and the current version of the form.

Moving your own goods to Portugal

In Portugal, an intra-Community acquisition of goods (ICA) is generally created. Agree on the value, date, warehouse document, and reporting in the country of shipment. The transaction should be submitted to the appropriate sections of the declaration of goods period.

WDT from a warehouse in Portugal

Check the buyer's valid VAT number in VIES, proof of transport, and 0% rate conditions. The operation may require periodic declarations, recapitulative statements, and Intrastat.

Import settled by declaration

Verify the qualification for Article 27 paragraph 8, the values ​​from the severance pay and the data in fields 18 and 19. Differences must be documented.

Local B2C sales from a Portuguese warehouse

These are essentially domestic sales in Portugal. The mere fact that OSS is used in other channels does not transfer these local sales to the OSS procedure.

Local B2B sales with reverse charge

Don't apply for a Portuguese IVA just because your company has an active NIF. First, confirm the reverse charge conditions and the inclusion required in the current instructions.

B2C sales to another EU country

Check whether the transaction is subject to OSS. If so, it should not be re-billed as a Portuguese domestic sale. We describe how to handle such settlements in the OSS VAT declarations.

Additional reporting

Declaração recapitulativa, e-Fatura, SAF-T and Intrastat

Additional reports are not copies of the periodic declaration. Each has its own scope, deadline, and logic, but the values ​​must be compatible with each other.

The most important systems and reports supporting the Portuguese IVA settlement
Report / systemWhat does it include?The most important control
Declaração recapitulativaIntra-Community Supply of Goods, certain B2B services to other EU countries, triangular transactions and selected call-off stock changes.VAT number, country, value, period and compliance with periodic declaration.
e-FaturaInvoice data submitted to the administration, generally by the 5th day of the following month, taking into account the calendar.Series, document statuses, cancellations, credit notes and missing invoices.
SAF-T (PT)Standardized accounting or invoicing data in accordance with the applicable technical scope.Code mapping, document completeness and compliance with accounting records.
IntrastatStatistical report of goods flows after exceeding the appropriate threshold.Value, weight, CN code, country and direction of flow.
OSS / IOSSSelected B2C transactions settled under special procedures.No double counting in local IVA and special declaration.

When is a declaração recapitulativa filed?

Monthly taxpayers generally submit their tax return by the 20th day of the following month. Quarterly taxpayers submit their tax return by the 20th day following the quarter, unless reported transactions exceed EUR 50,000 in the current quarter or one of the four preceding quarters, in which case they submit it monthly. This obligation applies to periods with reported transactions or specific changes, so it is not automatically submitted on a "zero" basis. See Article 30 of the RITI.

What is not included in the recapitulation?

As a rule, Portuguese ITCs, imports, exports outside the EU, domestic sales from IVAs, domestic B2C sales, services purchased from foreign suppliers and transactions reported in OSS do not go there.

Errors and changes

How to correct a VAT return in Portugal?

The method of correction depends on whether the error already existed in the original settlement or whether an event occurred later that changed the basis or VAT.

1

Primary error

If an invoice or transaction has been omitted or misclassified from the outset, you will usually need to submit a replacement return for the correct period.

2

A later event

A credit note, price change, bad debt or adjustment of a deduction may be subject to regularization at a later date if the regulations allow it.

3

Related Reports

Separately check recapitulativa, e-Fatura, SAF-T, invoice, Intrastat, warehouse movement, customs data and payment.

The correction must have an audit trail

Keep the original file, the corrected version, a description of the reason, source documents, shipping confirmations, and the calculation of the surcharge or credit. If the correction increases the liability, interest is assessed from the original due date.

Update July 2026

Form changes in 2026 and 2027

Portaria no. 298/2026/1 of 16 July 2026 amended the templates of the periodic declaration, Anexo R and annexes to fields 40 and 41. The period date must be linked to the appropriate version of the form.

from 1/07/2026

Changes applicable to periods from July 2026.

They include selected fields related to, among others, the VAT group system and corrections regarding item 2.42 of List I. For settlements, please use the current instructions available on the portal.

from 1/07/2027

More extensive form redesign later

The bulk of the new fields and the broader layout apply only to periods beginning July 1, 2027. The entire 2027 form should not be used for 2026 returns.

Commitment

VAT payment in Portugal

The IVA amount due is generally paid by the 25th day of the second month following the period, for both monthly and quarterly settlements. For June and the second quarter, the deadline is September 25th.

1. Check the result

Compare the declaration amount with the accounting reconciliation, the previous period credit and any adjustments.

2. Use the right data

Verify the NIF, period, payment reference, and account. Without proper identification, the transfer itself may not be assigned correctly.

3. Confirm posting

Keep your proof of payment and check your balance on Portal das Finanças. Don't stop at your bank confirmation.

Lack of funds does not prevent the declaration

Don't delay submitting a correct return just because your company can't pay the full amount immediately. An unfiled return and unpaid tax are separate risks. Payment deadlines are set out in Article 27 of the IVA Code.

Risk

Late declaration, surcharge and interest

Delays may result in penalties for missing or late declarations, and interest on outstanding VAT. The amount of these penalties and the possibility of limiting them depend on current regulations and the timing of the voluntary correction.

When the correction increases VAT

  1. set the original payment deadline,
  2. calculate the surcharge for the appropriate period,
  3. check current interest rules,
  4. correct related reports,
  5. pay and keep your records.

When the declaration is late

File it as soon as possible and assess whether any tax has been owed. Voluntary resolution of the violation may be important, but do not assume automatic sanctions will be avoided. Portuguese regulations on declaration violations and interest must be checked as of the date of action.

Pre-shipment inspection

How to close a Portuguese VAT settlement?

We apply a fixed sequence of checks so that declarations, reports and payments result from a single agreed set of data.

  1. Status and period: active NIF, monthly or quarterly mode, appropriate form version.
  2. Completeness: all invoices, corrections, customs documents and warehouse movements.
  3. Classification: domestic sales, IDT, INT, import, export, reverse charge and OSS.
  4. Region: mainland, Azores and Madeira and possible Anexo R.
  5. Tax due: bases, rates, date of obligation and exemption documents.
  6. Input tax: right of deduction, limitations, proportion and import.
  7. Systems: e-Fatura, SAF-T (PT), periodic declaration and books.
  8. Reports: recapitulativa, Intrastat, OSS/IOSS and correction attachments.
  9. Shipping: final version, receipt confirmation and data archive.
  10. Payment: proper reference, due date and confirmation of posting.
Most common problems

Errors in VAT declarations in Portugal

Dates and status

Bad period or frequency

  • quarter instead of month,
  • no zero declaration,
  • omitting the declaration after the sale has been completed but before the registration has been formally closed.
Transactions

Misclassification

  • local B2C sales included in OSS,
  • no ITC of own goods,
  • IDT without proof and valid VAT number,
  • automatic calculation of IVA despite reverse charge.
Data and systems

No agreement

  • differences between e-Fatura, SAF-T and books,
  • import without checking fields 18 and 19,
  • correction without attachment or audit trail,
  • transfer without checking the accounting.
Summary

VAT returns in Portugal 2026 – key conclusions

20.

Declaration

The period declaration is generally submitted by the 20th day of the second month after the period.

25.

Payment

IVA payment has a separate deadline, generally by the 25th day of the second month after the period.

0 ≠ none

Zero declaration

An active taxpayer usually also reports a period without sales.

1 data

Many reports

The declaration, e-Fatura, SAF-T, recapitulativa and Intrastat must be mutually explainable.

FAQ

VAT Declarations in Portugal – Questions and Answers

This text is for informational purposes only and does not replace individual tax analysis. When filing VAT returns in Portugal, it's important to verify taxpayer status, tax period, transaction type, the correct form version, the Financing Portal system, and current reporting obligations.

Katarzyna Andrzejewska
Author of the article

Katarzyna Andrzejewska

VAT Abroad Specialist

She has been involved in VAT compliance and other foreign taxes for nine years. Working directly with clients daily, she understands foreign tax procedures inside and out. She stays abreast of changes in tax regulations and quickly translates them into specific, useful, and understandable blog content. Combining her substantive knowledge with tax experience allows her to create content that truly supports entrepreneurs in their development in foreign markets.

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