Paperwork and public services
Tax and social security clearance certificate
In short
A certificate showing you have no overdue debts to the tax office or EFKA.
It is often required when you take part in a public tender, get a licence or make an agreement with the state.
It is issued online and is valid for a limited time. If you have a debt payment plan, it usually must be active.
If it does not come out, check whether you have debts or pending declarations.
Official source: AADE (Greek tax authority)