(2023) Can I also declare one-off payments?

Occasional or one-off maintenance payments are also tax deductible as part of maintenance payments to dependants.

For a one-off maintenance payment, the tax office always assumes that it is intended to cover maintenance needs until the end of the year. The maximum maintenance amount is then reduced by one twelfth for each preceding month. If you make a payment in September, the maximum maintenance amount is reduced by 8/12. However, if you make the one-off payment in January, the maximum maintenance amount is not reduced. A maintenance payment in January thus secures the full maximum maintenance amount for the whole year, provided the supported person is in need for the entire year. The maintenance payment should always cover living expenses until the next payment. It does not matter whether these payments reach the pro rata maximum amount.

Maintenance payments to a spouse can always be deducted up to the maximum maintenance amount, regardless of when the payment is made.