When you read about Segurança Social benefits in Portugal, a number keeps appearing: the IAS. It is the reference index that sets the floor for what you receive when you cannot work and the ceiling on what the state will pay regardless of how much you earn. Without knowing the IAS value, you cannot estimate any benefit amount in Portugal.
The 2026 IAS value is €537.13 per month.
Quick Answer: The IAS (Indexante de Apoios Sociais — Social Support Reference Index) is the official calculation reference used across Portuguese social security benefits. In 2026, it is €537.13/month. It is not the minimum wage (€920/month in mainland Portugal in 2026 — a separate figure). The IAS is updated annually by government decree. Benefit rules use IAS in different ways: unemployment benefit has a 2.5× IAS ceiling, child benefit income bands use IAS multiples, and sick leave uses a daily minimum floor.
What the IAS is and why it exists
The IAS is a fixed reference value set annually by the Portuguese government. Its purpose is to provide a stable calculation base for social security benefits that does not directly track salary levels or the minimum wage.
Before the IAS existed, benefits were often calculated as percentages of the minimum wage. Tying benefits directly to the minimum wage created automatic escalation in benefit costs whenever wages were raised. The IAS was introduced to decouple these — giving the government independent control over benefit levels through a separate annual decree.
The result: when the minimum wage rises, your benefits do not automatically rise with it. The IAS is updated separately, based on inflation and social policy decisions, published in the Diário da República.
IAS vs. minimum wage — why they are different
Both numbers are real and important, but they serve different functions:
| IAS 2026 | Minimum wage 2026 | |
|---|---|---|
| Value | €537.13/month | €920/month |
| What it governs | Benefit floors and ceilings | Employer minimum pay obligation |
| Who sets it | Government decree (annual) | Government decree (annual) |
| Updated linked to | Inflation and social policy | Wage policy |
| Used by | Segurança Social to calculate benefits | Employers to determine minimum salaries |
The minimum wage is what your employer must pay you as a floor. The IAS is what the Social Security system uses internally to calibrate what it pays you when you are not working. They are unrelated except that both are set by government decree.
The IAS multiples table — the numbers behind many benefit rules
Benefits do not all use the IAS in the same way. Unemployment uses it for minimum and maximum limits. Child benefit uses IAS multiples to place a household in an income band. Sick leave uses a daily minimum linked to the IAS.
| IAS multiple | 2026 value | Practical use |
|---|---|---|
| 0.5× IAS | €268.57/month | Child-benefit income-band calculations and other means-tested rules |
| 1× IAS | €537.13/month | Common reference value for benefit floors and eligibility tests |
| 1.5× IAS | €805.70/month | Intermediate reference in some social-support tests |
| 2× IAS | €1,074.26/month | Used in some income and support calculations |
| 2.5× IAS | €1,342.83/month | Maximum monthly unemployment benefit before other legal limits |
| 3× IAS | €1,611.39/month | Used in some supplementary calculations |
| 12× IAS | €6,445.56/month | Maximum monthly base often relevant to independent-worker contribution ceilings |
| 240× IAS | €128,911.20 | Movable-assets limit used in several means-tested benefits |
For child benefit, do not confuse the current IAS with the reference-income year. New 2026 applications normally assess 2025 income, so the published child-benefit bands may use the 2025 IAS (€522.50) for that income year. Reassessment during 2026 may use the 2026 IAS (€537.13). This is why benefit tables can look inconsistent even when they are official.
How to apply the IAS table to your own situation
Example: Estimating your unemployment benefit ceiling
You earn €3,500/month gross. At 65% of reference earnings, your theoretical benefit would be around €2,275/month. But unemployment benefit is capped at 2.5× IAS = €1,342.83/month. That cap applies regardless of your salary. If you earn €3,500/month, you receive the same capped amount as someone earning €2,500/month. The cap is real and affects many higher-earning workers.
Example: Checking the sick leave floor
You earn €700/month gross. At 55% (days 4–30 of illness), your reference daily earnings produce approximately €385/month. But sick leave does not use a simple monthly 1× IAS floor. The 2026 official sick-leave guide gives a minimum daily amount of €5.37 (30% of the daily IAS), unless your reference remuneration is lower. So sick leave should be estimated from the daily formula, not by assuming a full monthly IAS floor.
Example: Child benefit escalão threshold
Your household has two adults and one child. Annual household gross income is €42,000. Per capita: €42,000 ÷ 3 = €14,000/year (€1,166/month). In IAS terms: €1,166 ÷ €537.13 = 2.23× IAS per capita per month. This is a rough illustration only. Child benefit uses the household reference income, the number of children/youth in the household, and the income year being assessed. For 2026 requests, the official table distinguishes 2025-income thresholds from 2026 reassessment thresholds.
How the IAS links the benefits together
Every spoke benefit uses the IAS in a slightly different way:
Unemployment benefit (subsídio de desemprego): Floor is 1× IAS (€537.13/month). Ceiling is 2.5× IAS (€1,342.83/month). Your actual amount falls between these based on your reference earnings.
Sick leave (subsídio de doença): Rates vary from 55% to 75% of reference remuneration by duration. The 2026 minimum daily amount is €5.37, not a simple monthly 1× IAS floor.
Parental leave (subsídio parental): The payment percentage depends on the leave option chosen: 120 days, 150 days, or shared leave. The IAS mainly matters in minimum/social parental calculations rather than as a simple universal ceiling.
Child benefit (abono de família): The IAS is used to define the income thresholds between escalões. Your household’s income in IAS multiples determines which escalão you are in and therefore how much you receive.
The full benefit structure for all four is in the social security benefits Portugal guide.
Frequently asked questions
What is the IAS value in Portugal in 2026
The IAS (Indexante de Apoios Sociais) in 2026 is €537.13 per month. This is the reference value used to calculate floors and ceilings for most Segurança Social benefits.
What is the difference between the IAS and the minimum wage in Portugal
The minimum wage (salário mínimo nacional) in 2026 is €920/month — what employers must pay workers. The IAS (€537.13/month) is a calculation reference used by the state to set benefit floors and ceilings. They are different figures used for different purposes.
How often is the IAS updated
The IAS is updated annually by government decree, published in the Diário da República. It does not change mid-year.
Does the IAS affect how much unemployment benefit I receive
Yes. Unemployment benefit is floored at 1× IAS (€537.13/month) and capped at 2.5× IAS (€1,342.83/month). Your actual amount falls between these based on your reference earnings.
Does the IAS apply to parental leave
Parental leave mainly depends on your leave option and reference remuneration. There is no unemployment-style IAS ceiling.
Where can I find the official current IAS value
The current IAS is published in the Diário da República at dre.pt and referenced on seg-social.pt. The 2026 value is €537.13/month.
The IAS is the one number worth memorising if you want to understand any Segurança Social benefit calculation. At €537.13/month in 2026, it is the reference behind many limits and thresholds — and the figure that gives the 2026 unemployment ceiling of 2.5× IAS = €1,342.83. Every time a benefit guide references a minimum or maximum payment in Portugal, the IAS is the number behind it.