The abolition of Ba-Bs forms: what changed?

The forms prepared at the end of every month for years are no longer filed. The obligation is gone; the audit logic behind it is not — it has been strengthened.

Effective
2026
Reading time
5 min
Category
Filings

The Ba form for purchases and the Bs form for sales required transactions above a threshold to be reported to the tax authority. General Communiqué No. 565 on the Tax Procedure Law abolished this obligation; no form is filed for the September 2024 period onwards.

Why it was abolished

The purpose of the forms was mutual confirmation: the amount reported by the buyer was compared with the amount reported by the seller, and discrepancies triggered review. With the spread of e-invoice, e-archive invoice and e-waybill, the authority now reaches the same data at source and in real time. Asking the taxpayer to report it a second time no longer served a purpose.

What changed in practice

AspectPreviouslyToday
ReportingMonthly Ba and Bs formsNo separate filing
Data sourceTaxpayer declarationE-document system
ScopeTransactions above thresholdsAll documented transactions
Cross-checkAt period end, by samplingContinuous, full data
CorrectionAmended formCorrection at document level

What this means for the taxpayer

  • The monthly burden of preparing and reconciling forms is gone; that effort should move into record quality.
  • Errors in documentation now surface immediately rather than at period end.
  • Transactions on paper documents do not appear in the e-document flow and are now the weakest link in record discipline.
  • Account reconciliation with counterparties is still necessary; the end of the form does not remove the need for confirmation.
  • Obligations and penalties relating to earlier periods can still arise within the statute of limitations.

In short: one reporting obligation ended and a continuous data flow took its place. For businesses this means fewer forms but higher record discipline. Recording a document on the right date, at the right amount and in the right account is no longer a detail that can be fixed at period end.

Legal basis

  • General Communiqué No. 565 on the Tax Procedure Law
  • General Communiqué No. 396 on the Tax Procedure Law (repealed regime)
  • Tax Procedure Law No. 213, repeated Article 257

This article is general information and does not replace professional assessment of a specific matter. Amounts and rates relate to the stated year; please verify the current provisions before acting.

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