Who must switch to e-Invoice? 2026 scope guide

e-Invoice is the electronic equivalent of a paper invoice, transmitted through the Turkish Revenue Administration (GIB) system. Its scope expands every year; in 2026 it is no longer optional for many small businesses.

Who is in mandatory scope?

• All taxpayers exceeding the set revenue thresholds (lower thresholds for e-commerce sellers)
• E-commerce and marketplace sellers
• Suppliers working with the public sector
• Similar regulations for freelancers (e-Serbest Meslek Makbuzu)

Check current thresholds in the annual GIB communiqué; if you cross the line, switching is mandatory at the start of the following year.

How to transition?

1. **Application:** via the GIB portal or a private integrator 2. **Fiscal seal / e-signature:** companies get a fiscal seal, individuals an e-signature 3. **Software:** the GIB portal is free but limited; an integrator or an integrated pre-accounting app like Parasyo Pro saves serious time

What does it cost?

The GIB portal is free but weak on bulk operations and reporting. Private integrators charge per document. In Parasyo Pro, e-invoicing is included: invoices, quotes and waybills are managed from one panel with a 1,000-document monthly quota.

Penalty risk

Issuing paper invoices while in mandatory scope triggers a special irregularity fine per document. Confirm your status with your accountant.

In short: if you are approaching the threshold, don't leave the switch to mid-year. With Parasyo Pro, e-invoice, current accounts and the ledger run in the same account.