How the Social Security estimate is calculated

You don't need this to use the feature — it's here in case you want to check the amounts. 🧮

1Relevant income

70% of services + 20% of goods invoiced in the quarter.

2Monthly base

Relevant income ÷ 3 (with the voluntary adjustment, if any). It can't exceed the legal limit (12 × IAS; €6,445.56 in 2026).

3Monthly amount

Monthly base × your rate (21.4% for self-employed workers, 25.2% for sole traders/ENI). It can't be less than €20.

📌 Example

You invoiced €6,000 in services in one quarter, as a self-employed worker:

🎚️ Paying more or less (voluntary adjustment)

Social Security lets you pay a little more or less than the calculated amount — up to 25% up or down, in 5% steps.

In the Quarterly View, under Voluntary adjustment, use Decrease 5% and Increase 5% to see how your monthly amount would change.

• The minimum (€20) and the cap always apply.