Guides, articles and answers for your business
How-to guides for Wrapp, practical myDATA and invoicing guides, and regulatory news. All in one place.
Mandatory e-invoicing in Greece from 1 October 2026: deadlines, penalties and what to do now
ReadGreece's 2026 Farm Subsidy Application on myAGRO: Which Expense Documents Count
ReadNBG Pay POS integration with EDPS
ReadDidn't File a Greek Tax Return? How AADE's Estimated Assessment Works and What It Costs
ReadImputed (Deemed) Income in Greece: How to Dispute It and Cut Your Tax (2026)
ReadArticles and guides on myDATA, invoicing, tax and running your business
Mandatory e-invoicing in Greece from 1 October 2026: deadlines, penalties and what to do now
ReadGreece's 2026 Farm Subsidy Application on myAGRO: Which Expense Documents Count
ReadDidn't File a Greek Tax Return? How AADE's Estimated Assessment Works and What It Costs
ReadImputed (Deemed) Income in Greece: How to Dispute It and Cut Your Tax (2026)
ReadGreek Tax Returns 2026: E3 Form, New Activity Codes (KAD) and myDATA
ReadHospitality platforms and myDATA: why issuing runs through a ΥΠΑΗΕΣ provider
ReadHow SaaS & ERP Platforms Become myDATA-Compliant via API
ReadHow to Level Up Your Ecommerce in 2026
Read10 Reasons Your Business Might Not Make It and How to Build Resilience
ReadE-invoicing: Why Every Small Business Wins by Starting Today
ReadA Short Guide to the All-in-One Devices Replacing Legacy Cash Registers
ReadWhat actually changes when you digitise your business, sector by sector, from daily operations through to the receipt
Everything about issuing invoices and receipts
VAT Exemption Articles in Greece: the Updated List (Law 5144/2024)
ReadHow to Issue an Invoice or Receipt in Wrapp
ReadHow to Issue a Linked Credit Invoice
ReadHow to Charge the Climate Crisis Resilience Fee
ReadHow to Create a Payment Receipt
ReadHow to Change an Invoice's Payment Status
ReadHow to Use Filters to Find Specific Documents
ReadHow to Issue a Simplified Invoice
ReadHow to Issue a Delivery Note
ReadInvoicing a Customer Outside the EU from Greece
ReadIntra-Community Invoicing from Greece, With and Without VAT
ReadEverything about configuring your account
How to Submit the YPAHES Provider Declaration
ReadHow to Add Your Bank Account Details
ReadHow to Bulk-Import Your Products and Services
ReadHow to Add Your Company Logo
ReadHow to Enable Customer Lookup by VAT Number (TaxisNet)
ReadAADE Special Codes: Enabling VAT Number Lookup Through Taxis
ReadHow to Create Your Wrapp Account
ReadHow to Create a New Billing Book (Document Series)
ReadHow to Cancel Your Subscription and Stop Automatic Renewals
ReadHow to Renew Your Subscription After It Expires
ReadIssuing invoices to Greek public sector entities (B2G)
How to use the Digital Clientele registry
POS interconnection
The myDATA code lists the API uses
Invoice types
ReadVAT exemption reasons
ReadPermitted VAT values (vat_rate)
ReadQuantity types
ReadIncome / expense classification categories
ReadIncome / expense classification types
ReadOther taxes categories
ReadStamp duty categories
ReadWithholding tax categories
ReadEntity types
ReadTax types
ReadPurpose of movement
ReadReverse delivery note purpose
ReadIf your documents originate in your own system, eshop, ERP or platform, integration happens over a REST API. The documentation and the steps to partner with us are here.
myDATA fuel codes (fuel_code): issuing fuel station documents through the API
ReadREST API Documentation
Endpoints, fields and examples for issuing and transmitting documents through the API.
Read the documentationPartner Onboarding API
Documentation for platforms that create and manage accounts on behalf of their own customers.
Read the documentationBecome a Partner
Staging environment, technical support and commercial terms for platforms and partners.
See how to start