Your Invoice May Be Rejected After April 1! Critical Change in E-Invoice

3/27/2026 e-invoice 2026 e-invoice adonis hotel management E-invoice is up to date accounting in hotel management

A New Era Begins in E-Invoice

An important change in the e-invoice system will come into force as of April 1, 2026. It is no longer enough to just issue an invoice; the content of the invoice must also comply with certain rules.

In the new system, VAT rate and NACE (activity) code compliance will be checked automatically. Non-compliant invoices may be rejected by the system or marked as “incorrect document”.

 Which Bugs Are Risky?

The following situations may cause your invoice to be rejected:

  • Incorrect VAT rate usage (1%, 10%, 20%)

  • Non-operational invoicing

  • Incorrect TR ID number / TIN information entered

 

 What Does Code 555 Do?

555 – Sales Not Subject to VAT Rate Control code;

  • Sales of fixed assets

  • Cost reflection transactions

It can be used in special cases such as. However, unnecessary use poses a risk.

 What Should You Do?

  • Check your NACE code

  • Use correct VAT rate

  • Enter billing information carefully

  • Update your processes

Conclusion

With the new system erroneous invoices will now be detected instantly.
It is important to review your e-invoice processes now to avoid interruption of your business processes.