The Tarifa Social de Energia in Portugal in 2026: A Practical Guide to the 33.8 Percent Electricity Discount, the 6,272.64 Euro Income Line, and the 6.9 kVA Condition That Quietly Disqualifies People

Most Portuguese benefits require you to apply. The tarifa social de energia (social energy tariff) is the rare one that does not. If your circumstances match the rules, the state works it out from data it already holds and the discount simply appears on your electricity bill. About 735,000 electricity contracts in mainland Portugal were carrying the discount in June 2026. Averaged across the second quarter of the year, DGEG puts the reach of the electricity tariff at about 7.1 percent of the mainland population.

That design is the scheme's strength and also the reason people miss out on it. Nobody applies, so nobody checks. Immigrants in particular can fall outside the automatic sweep, because the data the state matches against was not built with them in mind. This guide sets out the discount, who qualifies, how the automatic attribution works, what to do when it does not, and the one piece of household administration that quietly disqualifies people who are otherwise entitled.

What the discount actually is

The tarifa social is not a special tariff you switch onto. It is a discount applied to the tarifa de acesso às redes (network access tariff), the component of your bill that pays for the grid. That structural choice matters, because the access tariff appears on every bill, in the regulated market and the free market alike. So the discount reaches you whichever supplier you use, and switching supplier does not cost you the benefit.

For electricity in 2026, the regulator has set the figure so that it delivers a 33.8 percent discount on the gross price of the regulated transitional tariffs, meaning before VAT and other taxes, contributions and charges. The percentage is fixed by the government member responsible for energy, and ERSE, the energy regulator, then calculates what that requires in the access tariff.

Three things stack on top of one another:

• the social discount on the network access tariff, applied to both the power term (the daily standing charge tied to your contracted power) and the energy term (what you consume);
• full exemption from the Imposto Especial de Consumo (IEC, excise duty) on electricity;
• a partial exemption of 1.85 euros a month on the Contribuição para o Audiovisual (CAV, the RTP levy), for some beneficiaries but not all;
• and the VAT that would have been charged on each of those amounts, which falls away with them, in your favour.

ERSE publishes a worked example. A couple with no children, on 3.45 kVA of contracted power and 1,900 kWh a year, faced a monthly bill of 36.52 euros at January 2026 prices. The social discount was 13.44 euros a month, bringing it to 23.08 euros. That is a reduction of roughly 37 percent on the bill as the household actually experiences it, because the headline 33.8 percent applies to the pre-tax tariff and the tax exemptions come on top.

The CAV element is the one with a narrower gate. The 1.85 euro partial exemption goes only to beneficiaries of the complemento solidário para idosos, the rendimento social de inserção, the subsídio social de desemprego, the first bracket of abono de família, or the pensão social de invalidez. A household that qualifies for the tarifa social on income grounds alone gets the access-tariff discount and the IEC exemption, but keeps paying the full CAV. We set out how that levy works in a separate guide to the Contribuição para o Audiovisual.

Who qualifies: two separate doors

There are two routes in, and you only need one.

The first is by social benefit. You qualify if you receive any of these from Segurança Social:

• complemento solidário para idosos (solidarity supplement for the elderly);
• rendimento social de inserção (social insertion income);
• any unemployment benefit (prestação de desemprego);
• abono de família (child benefit);
• pensão social de velhice (social old-age pension);
• pensão social de invalidez under the special invalidity protection regime, or the supplement to the prestação social para a inclusão.

The second is by income, with no benefit at all. A household with total annual income at or below 6,272.64 euros qualifies. That ceiling is then raised by 50 percent for each member of the household who has no income of their own, including yourself, up to a maximum of ten people. The tax authority applies the calculation, and "household" here means the household as the IRS code defines it: you plus your dependants.

In practice the ceiling looks like this:

• 1 member with no income: 6,272.64 euros
• 2: 9,408.96 euros
• 3: 12,545.28 euros
• 4: 15,681.60 euros
• 5: 18,817.92 euros
• 6: 21,954.24 euros
• 7: 25,090.56 euros
• 8: 28,226.88 euros
• 9: 31,363.20 euros
• 10: 34,499.52 euros

Note the wording carefully. The uplift counts household members who have no income, not household members generally. A couple where one person earns and one does not is a different calculation from a couple where both earn a little.

The two contract conditions that disqualify people

Meeting the social or income test is not enough. The supply contract has to meet two conditions as well, and this is where otherwise eligible households fall out.

First, the contract must be in your own name, for exclusively domestic use, at your permanent residence. A tenant whose electricity contract is still in the landlord's name does not qualify, however low their income. Neither does anyone whose eligible address is a second home. If you are renting and the meter is in someone else's name, putting the contract in your own is the single most valuable piece of paperwork available to you.

Second, for electricity, the installation must be on low voltage with contracted power of 6.9 kVA or less. This is the trap that catches people who have never thought about it. Contracted power is a number you chose, or that a previous occupant chose, when the contract was opened, and 10.35 kVA is a common default in a flat with electric heating or an electric hob. If you are at 10.35 kVA and your income qualifies, you get nothing. Dropping the contracted power to 6.9 kVA or below brings you inside the rule, and it lowers the standing charge on every bill regardless. Our guide to setting up household electricity and gas covers how contracted power is chosen and changed.

Natural gas is a separate scheme with different rules

There is a parallel tarifa social for natural gas, created a year after the electricity one, and it does not mirror it.

The gas conditions are: contract in your name, exclusively domestic use, permanent residence, low pressure, and annual consumption of 500 cubic metres or less. The qualifying benefits are the same list as for electricity with two differences: only the first bracket of abono de família counts, and the pensão social de velhice is not on the gas list.

The gas discount is set separately and on a different calendar. Despacho n.º 4240-B/2026, signed by the Minister for the Environment and Energy on 30 March and published on 31 March, fixes it at 31.2 percent of the transitional sale tariffs, excluding VAT and other taxes, for the gas year 2026 to 2027. It applies from 1 October 2026. The preamble to that order is worth reading for what the government says about why: it cites "increased volatility in energy prices, arising from geopolitical tensions in the Middle East conflict and from constraints in global natural gas markets."

Gas take-up is far smaller than electricity. About 56,200 households were on the gas social tariff in June 2026, against 735,000 on the electricity one, and the gas number has been falling slightly.

How the automatic attribution works

Since 1 July 2016 the scheme has run on automatic recognition, a design the United Nations gave an award in 2020 for delivering inclusive public services. There is no form in the normal case.

The Direção-Geral de Energia e Geologia (DGEG, Directorate-General for Energy and Geology) builds the beneficiary list. Energy suppliers send it their customer data; DGEG checks eligibility against the Autoridade Tributária e Aduaneira (AT, tax authority) and against Segurança Social; the resulting list goes back to the suppliers, who apply the discount.

When the right is granted, your supplier writes to tell you. If you disagree with the attribution, you have 30 days to object. Say nothing and the discount is applied. That opposition window exists because the state is assigning you a benefit without asking, and some people do not want it assigned.

The review cycle has two speeds, and knowing which is which tells you when to expect a change:

• Monthly, eligibility is rechecked against Segurança Social for every electricity customer, and against the tax authority for customers whose contract details changed, for new customers, and for new consumption points.
• Annually, in September, eligibility is rechecked against the tax authority for every electricity customer.

That September sweep is the one that moves large numbers of households in and out at once, on the strength of the IRS position for the previous year. If your discount vanishes in the autumn without explanation, the annual tax-side revision is the first thing to look at. If your income fell after that sweep, the monthly Segurança Social check is what will catch a new benefit award, but only if you are actually drawing the benefit.

When it does not arrive automatically

The automatic route fails in predictable ways, and there are three fallbacks.

Ask DGEG to review your case. If you believe you meet the requirements and the tarifa social has not been granted, you can send DGEG a request for analysis, either through the online form on its site or by letter to Direção-Geral de Energia e Geologia, Tarifa Social de Energia, Av. 5 de Outubro 208, Edifício Santa Maria, 1069-203 Lisboa. DGEG received 1,001 such requests between April and June 2026 and answered 1,295 in the same period, clearing part of an older backlog. There is no walk-in service: DGEG states plainly that it has no in-person counter for the tarifa social.

Get a certificate from Segurança Social and hand it to your supplier. Alongside the automatic regime, you can ask a Segurança Social office for proof that you receive a qualifying benefit, and give that document to your supplier, asking it to verify the conditions and apply the tariff. This is the manual override, and it exists precisely because the automatic match is not perfect.

If you are a public employee drawing abono de família, you must do this every year. This is the single most easily missed rule in the scheme. Where child benefit is processed outside the Segurança Social information system, which is the case for many public-sector employees, the automatic check cannot see it. DGEG's instruction is to request a declaration from whichever body processes your abono de família, annually and whenever your situation changes, and deliver it to your energy supplier. The declaration must be dated and must state the benefit bracket, your full name, your NIF and your permanent address. Without it, you are entitled and invisible.

A practical warning about the phone lines. DGEG advertises a first-line number, 210 308 536, for general information, open weekdays 09:00 to 13:00 and 14:00 to 18:00, and a second line on 217 922 700 for people who have already lodged a request, reached by selecting options 1, 1 and 2, open weekdays 10:00 to 12:00. In its own quarterly bulletin for the second quarter of 2026, DGEG records that the first-line call centre answered zero calls in April, May and June, because technical problems had taken it out of service for the whole quarter. The second line answered 178 calls in those three months, about three per working day. Written contact, by online form or letter, is the reliable channel.

Where the beneficiaries are

The distribution says something about who the scheme is reaching. Averaged over the second quarter of 2026, Lisboa district had 151,490 electricity beneficiaries and Porto 138,965, followed by Braga at 64,355 and Setúbal at 62,652. At the other end, Portalegre had 6,997, Évora 8,293 and Beja 8,664, the only three districts below 10,000. Nationally the electricity tariff reached about 7.1 percent of the mainland population in that quarter, and the gas tariff about 0.6 percent.

Numbers moved up over the quarter, by 24,416 electricity beneficiaries between April and June, while gas fell by 705. Against the first quarter of 2026, both were down, by 5,048 on electricity and 663 on gas. The population on this tariff is not stable; it churns with the labour market and with the annual tax revision.

Who pays for it

Worth knowing, because it occasionally becomes a political argument. The cost of the electricity social tariff is not carried by the state budget. It falls on the owners of generating plant, on electricity suppliers, and on other market agents who buy electricity directly in the wholesale market without going through a supplier. ERSE runs the financing mechanism. Nobody's ordinary bill is explicitly surcharged for it.

Check before October

Two reasons to look at your position now rather than later. The annual tax-side revision runs in September, so this month's outcome sets your position for the year ahead. And the regulated electricity tariff rises on 1 October, alongside the new gas year, which makes the discount worth marginally more in cash and the absence of it worth more to fix.

Three checks, in order. Open a recent bill and find the contracted power in kVA: if it reads above 6.9, that alone is disqualifying and is fixable with a call to your supplier. Confirm the contract is in the name of someone who lives there permanently. And if anyone in the household draws a qualifying benefit that is paid outside the Segurança Social system, get the annual declaration and hand it over. The scheme will not come looking for you twice.

Related reading on the benefits that open the first door: our guides to the Rendimento Social de Inserção, the Complemento Solidário para Idosos, unemployment benefit, and abono de família.

Sources

This guide is written from official Portuguese and EU sources.

• ERSE, Entidade Reguladora dos Serviços Energéticos, Tarifa Social na Eletricidade em 2026: exemplo numérico e perguntas frequentes, updated January 2026 (PDF, Portuguese only)
• Direção-Geral de Energia e Geologia, Quais as condições de atribuição da tarifa social de energia? (Portuguese only)
• Direção-Geral de Energia e Geologia, Boletim Trimestral da Tarifa Social de Energia, 2.º trimestre de 2026 (PDF, Portuguese only)
• Diário da República, Despacho n.º 4240-B/2026, de 31 de março, discount on the natural gas social tariff for the 2026 to 2027 gas year (Portuguese only)
• Direção-Geral de Energia e Geologia, Tarifa Social de Energia, scheme overview and automatic recognition (Portuguese only)