Key figures — as of 2026-09-20: Deco Proteste's 63-item essential food basket hit €255.97 the week of 9–16 September 2026, up for a third consecutive week — a rise of €0.72 on the previous week — and 5.85% (€14.15) more expensive than at the start of 2026 — tomate chucha jumped 18% to €2.68/kg, sliced bread rose 11% to €2.61, and tinned tuna in vegetable oil climbed 9% to €1.61.
The basket that keeps getting heavier
Portugal's benchmark grocery basket — the 63 essential products tracked weekly by consumer watchdog Deco Proteste — has now risen for three weeks running, reaching €255.97. The basket of 63 essential goods monitored by Deco Proteste rose for the third consecutive week, settling at 255.97 euros, the consumer defence association reported. It's a small weekly move on paper — an increase of 0.72 cents compared to the previous week — but it follows a €0.52 rise the week before and a €2.11 jump the week before that, meaning the direction has been consistently upward through September.
For anyone newly arrived in Portugal building a household budget from scratch, this basket is a useful yardstick precisely because it strips out discretionary spending. It includes meat, frozen goods, fruit and vegetables, dairy, groceries and fish — products such as turkey, chicken, mackerel, hake, onion, potato, carrot, banana, apple, orange, rice, spaghetti, sugar, ham, milk, cheese and butter.
What's driving the September spike
The sharpest weekly movements are the ones grabbing headlines locally. Between 9 and 12 September, the products with the largest percentage rises were tomate chucha, up 18% to €2.68 per kilogram, sliced crustless bread, up 11% to €2.61, and tuna in vegetable oil, up 9% to €1.61. The week before, it was fish and courgette leading the charge — between 2 and 9 September, mackerel rose 23% to €5.46/kg, courgette rose 20% to €2.15, and tinned tuna in olive oil rose 17% to €2.21 — a reminder that the products squeezing shoppers change fast, week to week.
Zoom out to a year-on-year view and the picture is starker for fish and seafood specifically: compared with the same period last year, mackerel is up 30% to €5.82/kg, large cod is up 29% to €20.06/kg, and sea bass is up 27% to €10.35/kg. Since Deco Proteste began tracking the basket in January 2022, the cumulative distortion is even more visible — the largest percentage increases since monitoring began in January 2022 were boiling veal, up 117% to €12.62/kg, large cod, up 89% to €20.06/kg, and heart cabbage, also up 89%, to €1.87.
GrowIN's take: a bigger bite out of the minimum wage
Here's the number that matters for household budgeting rather than headlines: at €255.97, this essential basket now represents roughly 27.8% of Portugal's 2026 national minimum wage of €920/month — up from about 26.3% in early January, when the same basket cost €241.82. That's a shift of nearly a percentage and a half of a minimum-wage paycheck going on 63 basic food items alone, before rent, utilities, transport or health insurance enter the equation — a gap that hits lower-income newcomers and long-time residents alike, since food inflation doesn't discriminate by visa status.
"A basket meant to represent bare essentials is now eating into more than a quarter of the minimum wage before a single bill is paid," says GrowIN Portugal Editorial.
Why this matters for foreigners settling in Portugal
Portugal has long marketed itself on affordability relative to Western Europe, and for many costs — rent outside Lisbon and Porto, dining out, transport — that's still broadly true. But grocery inflation compounds quietly. Anyone budgeting for a D7 or D8 visa application, where AIMA and Finanças expect proof of sufficient recurring income, should factor rising food costs into their monthly estimates rather than relying on figures from a year or two ago. Our cost of living guide is updated as these numbers shift, and it's worth revisiting before finalising any relocation budget.
There's also a political angle worth watching. With the State Budget approaching, Chega is pushing a proposal to bring back zero VAT on the food basket, after similar projects were rejected in the spring — the question is whether it gets a green light this time. If a VAT exemption on essential foods returns, it would directly affect the shelf prices tracked in this basket.
What to watch next
Deco Proteste publishes its basket update every Wednesday, and the next release will show whether the tomato and tuna spike was a short-lived seasonal blip or the start of a fourth consecutive weekly rise. Also worth tracking: the outcome of the Chega VAT proposal in budget negotiations, and whether wholesale fish and dairy prices — the categories showing the steepest year-on-year gains — stabilise into autumn. For now, the trend line points one way, and it's not down.