Applying for Poland's 800+ benefit after 31 August means losing back-payment for earlier months

The deadline for applying for Poland's 800+ child benefit is crucial for retaining the right to back-payments for earlier months of the benefit period. An application submitted by 31 August covers payments from 1 June; after that date, the right to earlier months is lost. Applications can be submitted online via the mZUS app, the Emp@tia portal or electronic banking.