When you make contributions to SUPP, you will receive an extra monthly payment when you become an old-age pensioner. You will pay 1/3 of the contribution while the state will pay 2/3. Your share is DKK 198 (2024) or DKK 205 (2025) per month and the state's share is DKK 396 (2024) or DKK 410 (2025) per month.
There will be deducted 8 per cent in social security contributions to the Danish Tax Agency because the pension is considered equivalent to a labour market pension. If your disability pension is less than your share of the payment to SUPP, you cannot pay SUPP contributions.