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Invoicing & myDATA

Everything in the journal tagged Invoicing & myDATA.

What changed in our tools
E-invoicing from 1 October 2026, and what changed in Stripe and Google Calendar for booking businesses
Mandatory e-invoicing reaches every remaining Greek business on 1 October 2026. Plus IRIS, card terminals, Stripe fees and Google Calendar limits.
16 September 20265 min read
Running the business
Trade orders by phone and Viber: when your customers are other businesses
Suppliers across Greece still take most trade orders by phone, message and photo. What that costs, why e-invoicing makes it more visible, and what an order portal changes.
3 September 20263 min read
Running the business
Greece's digital client register is heading for gyms, salons and doctors
Garages and car rentals already report every customer to the tax authority before the work starts. Gyms, salons, physios and doctors are named as next. What it means if you run on appointments.
14 July 20263 min read
Running the business
IRIS payments are mandatory in Greece. What that means at the counter and online
Since December 2025 businesses in Greece must accept IRIS instant payments from consumers. What changed, what it costs you in admin, and where your website fits in.
12 February 20263 min read