See what a gym or studio needs for myDATA in 2026: receipts, transmission to AADE, basic steps and common mistakes.
What is myDATA in simple words
myDATA is the way AADE sees the income and expenses of a business through electronic books. For a gym or studio, this is mostly related to receipts, invoices, payments and agreeing with the accountant.
It is not something the owner should do alone without guidance. It needs proper setup, clear data and cooperation with the accountant.
What should a gym be aware of?
The key is to have a clear picture of when the customer pays, what they buy and what receipt is issued. One is a monthly subscription, another a package of lessons, another a single visit.
If these are kept on paper, messages and Excel, it is easy to create gaps: payments without proper recording, receipts forgotten or amounts that do not agree with the accountant.
Where mistakes are usually made
The most common mistakes are simple: different price in the register and different in the system, wrong customer details, receipt cut late, package sold but not passed correctly or change package without informing the accountant.
myDATA does not fix the organization by itself. If the data is entered wrong in the beginning, it will look wrong afterwards.
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What to ask your accountant
Before changing your receipt method or platform, ask your accountant:
- When should a receipt be issued for packages and subscriptions?
- What information should we keep for each payment?
- How will the month-to-month agreement be made?
- What should we look out for in case of cancellations, returns or package changes?
- Who will check that the receipts have been sent correctly?
How a management platform helps
A proper gym platform is not just for bookings. It connects customer, package, payment, receipt and history in one place.
So the secretary sees what has been paid, the owner sees what is outstanding and the accountant gets clearer data. This reduces errors and makes myDATA more manageable in everyday life.
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