In Türkiye, the word "reconciliation" means different things in different contexts. To an ERP user it means bank reconciliation; to an accountant, account reconciliation; to a CFO, customer/supplier reconciliation. In recent years, though, they have all converged under a single umbrella: e-reconciliation.
E-reconciliation is the process of verifying financial records digitally, against electronic sources. It is the modern successor to classic paper-based reconciliation.
Update: The Ba-Bs filing requirement was abolished by General Communiqué No. 565 on the Tax Procedure Law (Official Gazette 25.09.2024/32673), effective from the September 2024 period — as of 2026 there is no Ba-Bs filing obligation in Türkiye. The Ba-Bs sections below are kept for historical context; for the current picture, see Türkiye abolished the Ba-Bs forms: what replaces cross-checking.
The 4 types of e-reconciliation
1. Bank reconciliation
Agreement between the company ledger and the bank statement. Does every bank transaction have a counterpart in the ledger? Missing entries, duplicate entries, and FX-difference items are checked.
2. Account reconciliation (customer/supplier)
The receivables balance between your company and the counterparty (customer or supplier) is verified. You ask the other side to confirm: "we have a receivable of X TL from you." In Türkiye this is mandatory at year-end (under BDS, the Turkish independent auditing standards).
3. E-invoice reconciliation
Agreement between the e-invoices your company issues and the e-invoices that land on the counterparty's side. For a detailed guide, read our e-invoice reconciliation article.
4. BA-BS reconciliation (abolished in September 2024)
Form BA (the statement of goods and services purchased) and Form BS (the statement of goods and services sold) — monthly filings that GİB (the Turkish Revenue Administration) mandated until September 2024. Your BA-BS filings had to be consistent with the counterparty's; that cross-checking function now runs on e-document data instead.
What was the BA-BS form, and why did it matter?
The BA-BS filing was in force from 2007 until September 2024, mandated by GİB. It rested on one principle:
The amount a company reports as a purchase must equal the amount the selling party reports as a sale.
When they don't match, a discrepancy surfaces — and the tax office may open an investigation.
What Form BA contains
- Who you purchased from (tax ID, legal name)
- For what amounts (VAT inclusive/exclusive)
- In which month
What Form BS contains
- Who you sold to (tax ID, legal name)
- For what amounts
- In which month
It is mandatory for every transaction that exceeds the 5,000 TL monthly threshold — filings are due by the 25th of each month.
The 3-layer architecture of e-reconciliation
Layer 1 — Data collection
Every source flows into a single pool:
- Bank statements via bank APIs or
.xlsx/.mt940files - E-invoices via the GİB Portal or an integrator
- Ledger system (ERP, accounting software) integration
- Counterparty statements (where shared)
Layer 2 — Matching + consistency checks
The sources are compared against one another:
- Bank → ledger (bank reconciliation)
- E-invoice → ledger (VAT reconciliation)
- Ledger → BA-BS filing (tax reconciliation)
- Counterparty statement → company records (account reconciliation)
For detailed three-way cross-reconciliation, read this guide.
Layer 3 — Reporting discrepancies
Deviations fall into three classes:
- Missing entry — present in one source, absent in the other
- Amount difference — the same transaction recorded at different amounts
- Date difference — the same transaction recorded on different dates
Each deviation is prioritized with a risk score (details: anomaly detection guide).
The monthly e-reconciliation workflow
An ideal e-reconciliation month flows like this:
Throughout the month (automated):
- Bank statements are pulled daily
- E-invoices land as they arrive
- Automatic matching runs in the background
The 10th (manual approval):
- Low-confidence matches go to the team for approval
- Anomalies are reviewed by risk score
The 20th (counterparty account reconciliation):
- Account reconciliation forms go out to major customers/suppliers
- Confirmations and objections are put on record
The 25th (BA-BS filing):
- The auto-generated BA-BS draft is reviewed
- Submitted to the GİB Portal
- Cross-checked against counterparty filings
Month-end (close):
- VAT return
- Monthly financial reports
- Audit-ready file update
Done manually, this process consumes 40% of the team's time. With e-reconciliation automation, it drops to 5%.
Questions to ask when choosing e-reconciliation software
1. Is the GİB integration native? Are e-invoice, e-Arşiv (e-archive invoicing), and BA-BS automated? 2. How many banks does the bank API cover? It should include at least the 7 major Turkish banks (Garanti, İşbank, Akbank, Yapı Kredi, Ziraat, Halkbank, QNB). 3. Are account reconciliation forms generated automatically? As PDFs or e-signed documents? 4. Is there an audit trail? Which user gave which approval, and what was decided on each deviation? 5. Does it support multiple currencies? Automatic official CBRT (Central Bank of Türkiye) rates (see the CBRT guide)? 6. Does it integrate with accounting firms? Can multiple companies be managed from a single panel? (see the accounting firm portfolio guide) 7. Does it offer audit-ready reporting? (see staying ready for KGK (Turkish Public Oversight Authority) audits)
Recommendations by company size
SME (1-50): Cloud-based, modular starter plan — bank + e-invoice reconciliation only, with automated BA-BS.
Mid-market (50-500): All three modules together (bank + e-invoice + anomaly), automated account reconciliation forms, multi-user with approval workflows.
Enterprise (500+): Multi-entity consolidation, IFRS-compliant exports, a dedicated success manager, ERP integration via API.
You can see the plans for all three sizes in detail on the iFinances pricing page.
The next 2 years of e-reconciliation
Turkish regulation is evolving fast toward digital accounting. The roadmap GİB has announced:
- 2025: e-Defter (electronic ledger) adoption became widespread
- 2026: Continuous audit pilot programs begin
- 2027: E-signature becomes mandatory for account reconciliation forms
- 2028: AI-based tax audit pilot
By 2027-2028, companies without e-reconciliation will face a widening compliance gap and rising risk. Starting today means avoiding tomorrow's cost.
Conclusion
E-reconciliation is not just a technical process — it is the backbone of Türkiye's financial digitalization. BA-BS, e-invoicing, bank integration: designed as a whole, they make your company audit-ready and modern.
iFinances is a Türkiye-native solution that integrates all of these layers. Request a demo, or explore the plans.
Frequently Asked Questions
What is e-reconciliation (e-mutabakat)?
E-reconciliation, or e-mutabakat in Turkish, is the practice of verifying your records against a counterparty's digitally instead of on paper. Ledger balances, bank statements and e-invoice data are matched electronically, and the gaps are reported as missing entries, amount differences or date differences. Think of it as the classic reconciliation letter moved to a digital channel: same commercial purpose, different carrier.
Is e-reconciliation a GİB application?
No. GİB, Türkiye's Revenue Administration, runs a defined set of e-document applications on its official e-belge portal, including e-Fatura (e-invoice), e-Arşiv, e-İrsaliye (e-waybill), e-SMM, e-Müstahsil and e-Bilet, and there is no application called e-Mutabakat among them. E-reconciliation is a service offered by private software vendors, not a document type issued or mandated by the tax authority. Some of the data used in reconciliation, such as e-invoices, may originate in GİB systems, but the reconciliation itself is not a GİB application.
Is e-reconciliation mandatory in Türkiye?
No, adopting e-reconciliation is optional. Reconciling electronically has never been a legal requirement in Türkiye; the need to reconcile at all comes from commercial and accounting practice rather than from a filing mandate. For companies subject to independent audit, the auditor's external confirmation procedures are governed by the Turkish auditing standard BDS 505, but that shapes the auditor's process and does not oblige a company to buy e-reconciliation software.
Have the Ba-Bs forms been abolished?
Yes. Form Ba and Form Bs, the monthly purchase and sales statements, were abolished by General Communiqué No. 565 on the Tax Procedure Law (Official Gazette dated 25 September 2024, issue 32673), starting with the September 2024 period; the communiqué entered into force on 1 October 2024. The same communiqué repealed communiqués Nos. 362, 381 and 396, which the Ba-Bs regime rested on. Periods before September 2024 are still governed by the former rules.
If Ba-Bs is gone, is account reconciliation still needed?
Yes. Ba-Bs was a tax filing duty, whereas account reconciliation is the commercial practice of confirming your balance with a customer or supplier, and that has not gone away. Article 94 of the Turkish Commercial Code provides that, where the parties have a written current-account agreement, a balance statement not formally objected to within one month is deemed accepted; Turkish court practice looks for that written agreement, so the rule does not attach automatically to every reconciliation letter. In short, the filing obligation ended but the need to reconcile did not. iFinances treats this as a layer on top of your existing ERP or accounting software, matching account and bank records and producing and archiving the reconciliation letters that go with them.
