Compliance & control
Tax rules keep changing, and each country has its own. In Greece that means myDATA, MARK numbers, POS links and now mandatory B2B e-invoicing. This guide explains what changed in 2026 and how LaundriOS myDATA laundry software turns every order into the right tax document automatically.
Included in All plans
every receipt and invoice is reported to AADE and receives a unique MARK.
mandatory B2B e-invoicing starts for businesses with 2023 revenue above €1 million.
the transition period for that first group ends.
B2B e-invoicing becomes mandatory for all other businesses, through a certified provider or AADE's free tools.
When an order is completed, LaundriOS already knows the customer type, the services, the VAT and the payment. It chooses the right document (retail receipt 11.2, service invoice 2.1 or a credit note 11.4 / 5.1), issues it through a certified provider, sends it to myDATA and stores the MARK on the order and on the PDF.
myDATA ("my Digital Accounting and Tax Application") is AADE's platform where businesses in Greece report their income and expense documents. Every receipt or invoice gets a unique registration number, the MARK, which proves it was reported. For a laundry, that means every ticket paid at the counter or at the door must end in a document with a MARK.
Invoices to other businesses (hotels, restaurants, offices, short-term rental companies) must now be issued electronically through a certified e-invoicing provider or AADE's free tools. For larger businesses this started on 2 February 2026; for all others it applies from 1 October 2026. Retail receipts continue to be reported to myDATA. A rejected or pending transmission does not mean you should issue a second invoice. Fix the cause and resend.
A laundry issues many small retail receipts every day, plus invoices to business clients. Typing each document again in another program wastes time and causes mistakes: missing receipts, wrong VAT or duplicate invoices. When the document comes directly from the order, it's always complete and always matches the payment.
Each order already contains what a tax document needs: AFM and ΔΟΥ for businesses, services, VAT and payment. LaundriOS issues the correct document through a certified provider, stores the MARK and keeps three separate statuses (payment received, document issued, myDATA accepted), so nothing is ever "half done".
FAQ
Still not sure? Bring your questions to a free 30-minute demo, in your language.
Ask us anything in a demoThe unique number AADE assigns to every document reported to myDATA.
No. Documents are issued from LaundriOS through our certified partner.
You see it in the monitor, fix the cause and resend, without a duplicate.
Yes, linked to the original receipt or invoice.
Retail receipt 11.2, service invoice 2.1, credit notes 11.4 and 5.1.
Every plan.
See a ticket turn into a myDATA receipt with MARK in a free demo. myDATA is included in every plan, from €29/month.
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