What is ABA file?
Also known as: Direct Entry file, Cemtex file
An ABA file is the fixed-width text format Australian banks accept for batch payments. A plan manager or provider generates one to pay many provider invoices or staff wages in a single upload. Each record carries BSB, account number, amount and lodgement reference, with a total record the bank checks against.
The format is unforgiving: field positions are fixed and a malformed record can cause the bank to reject the entire batch.
Because an ABA file is an instruction to move money, it deserves the controls that go with that — a hash or checksum recorded at generation, a different person releasing the batch from the one who prepared it, and a hold on any provider whose bank details changed recently.
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Rostery handles this in practice
SCHADS interpretation, NDIS price-guide validation, claiming and the evidence an audit asks for — built for Australian providers.
