Portugal's Tax Authority Extends Its Beach Operation Into September, With 63 Inspectors and 58 Maritime Police Across Nine Districts

The Autoridade Tributária e Aduaneira (Tax and Customs Authority) will keep its beach inspection campaign running through September, the Finance Ministry confirmed on Wednesday. The operation, named "Mar à Vista", has been under way since 29 July alongside the Polícia Marítima (Maritime Police), and targets the bars, restaurants and rental businesses that hold concessions on Portugal's busiest bathing beaches.

The numbers give a sense of the scale. Sixty-three inspectors from the tax authority and 58 Maritime Police operatives have taken part in what the ministry describes as "dozens" of awareness and inspection actions, spread across nine districts: Aveiro, Beja, Coimbra, Faro, Leiria, Lisboa, Porto, Setúbal and Viana do Castelo. The campaign covers mainland Portugal only, so beach businesses in the Azores and Madeira are outside its scope.

What the inspectors have been finding

The stated purpose is softer than a straight enforcement sweep. The office of Finance Minister Joaquim Miranda Sarmento says the aim is to "promote voluntary compliance with tax obligations, through direct contact with economic operators", raising awareness of the importance of issuing an invoice and of meeting the legal obligations attached to the activity, so as to reinforce tax fairness and fair competition between businesses.

The visits have nonetheless produced findings. According to the ministry, inspectors identified "various infractions", chiefly the failure to issue an invoice and the use of billing software that does not meet the legal requirements. Portugal requires certified invoicing programmes for most businesses above a low turnover threshold, and a beach kiosk running an uncertified till is committing a separate offence from simply not handing over a receipt.

One documented example sits on the Alentejo coast. A joint action last month by the Sines Maritime Police and the tax authority resulted in seven beach support businesses and tour operators in the Odemira council being charged with irregularities. Those checks were coordinated by the Autoridade Marítima Nacional (National Maritime Authority) across the Odemira, Santiago do Cacém and Grândola councils.

Why beaches, and why now

Beach concessions are a seasonal, cash-heavy trade operating for roughly four months of the year, which makes them a recurring target for revenue authorities everywhere. The choice of September is not accidental either: the bathing season runs into the month on much of the coast, but the crowds thin, which makes inspections easier to carry out and harder for operators to wave away as a busy-day error.

The campaign also sits alongside the consumer-facing side of the same system. Every invoice issued with a customer's NIF flows into e-Fatura, where it becomes a deductible expense. An unissued invoice costs the state VAT and costs the customer a deduction at the same time. The tax authority recovered a record €1.55 billion in enforced debt in 2025, with VAT the largest single component.

What This Means for Expats

• Ask for the invoice, with your NIF. At a beach bar this is easy to skip, and it is the single behaviour the operation is designed to change. Restaurant spending is one of the categories that generates an IRS deduction.
• If you run a beach business: certified invoicing software and an invoice for every sale are the two things being checked. Both are verifiable on the spot.
• Geography matters: the nine districts listed cover almost the entire mainland coast, from Viana do Castelo to Faro. If you are in the Azores or Madeira, this particular operation does not reach you.
• Do not expect an announcement of results. The ministry has published participation figures and a description of the infractions, but no totals for fines or assessed tax.

Portugal counted close to 400 Blue Flag beaches this summer, most of them with some form of commercial concession attached. Judged against that, 63 inspectors over two months is a sampling exercise rather than a sweep. The point, on the ministry's own account, is that operators know the visits are happening.