Running a Bulgarian Company’s Books in 2026: Accounting, Audit, SAF-T and Euro Banking

Bulgaria’s 10% tax and new euro membership get the headlines; the accounting that keeps the company alive gets ignored — until a filing is missed. 2026 is a genuine transition year for Bulgarian bookkeeping: the euro changed the ledger currency, SAF-T reporting has begun (though probably not for you yet), and the annual audit and filing rules still catch out founders who assumed «10% and done.»

Here is what actually running a Bulgarian company’s books looks like this year after the state joined the euro.

Accounting in Euro: the 2026 Baseline

The first change is the unit on every line. Bulgaria joined the euro on 1 January 2026, so accounting, invoicing and reporting now run in euro rather than lev. Balances converted at the fixed rate of EUR 1 = BGN 1.95583, and for a company the practical effect is administrative housekeeping — restating opening balances, price lists, contracts and payroll into euro — rather than anything that changes the tax bill.

Underneath the currency, the fundamentals are unchanged and comfortably low. Bulgaria keeps its flat 10% corporate income tax, still the lowest headline rate in the EU, alongside standard VAT and monthly/annual obligations. The euro switch makes the low-tax base easier to operate across the EU, not more expensive — same 10%, now in the single currency.

SAF-T Has Started — But Probably Not for You Yet

The biggest 2026 reporting change is SAF-T, and it is widely misunderstood. Bulgaria’s National Revenue Agency began a phased SAF-T rollout on 1 January 2026 — but Phase 1 applies only to the largest enterprises, broadly those with annual revenue above BGN 300 million.

For a normal founder-owned Bulgarian company, that means SAF-T is not your problem in 2026. The rollout extends to medium-sized firms around 2028 and to smaller enterprises in 2029–2030, with non-VAT-registered micro-enterprises exempt. The right move now is awareness, not panic: keep your accounting software structured and clean so that when SAF-T reaches your size band, producing the monthly XML files is a configuration task, not a crisis.

Audit and Annual Financial Statements: the Real Obligations

Here is what genuinely applies to most companies. Bulgarian companies prepare annual financial statements and file them publicly with the Commercial Register, and a statutory audit is required only once a company crosses the size thresholds — a small enterprise needs an audit if it exceeds two of three tests: BGN 4 million in assets, BGN 8 million in net sales, and 50 average employees. Most founder companies sit well below that and do not need an audit, but every company must still prepare and file annual accounts.

Missing the filing is the common own goal. Annual financial statements must be filed with the Commercial Register by the statutory deadline, and late or missing filings draw penalties and undermine the company’s standing with banks and counterparties. The discipline is modest — books kept through the year, accounts prepared, filed on time — but it is not optional just because the tax rate is low.

Euro Banking and Day-to-Day Operations

Euro membership quietly upgraded the banking side. A Bulgarian company now invoices and receives in euro, settles across the EU through SEPA without conversion friction, and presents to counterparties as a eurozone business rather than one on a national currency. For a company selling into Germany, France or the Netherlands, that removes a constant small drag on every transaction. To check what’s generally needed for corporate bank account, read our article.

The compliance and banking sides reinforce each other. A Bulgarian company with clean euro books, filed annual accounts and consistent VAT returns onboards and banks far more smoothly than one that treats accounting as an afterthought. Keep the bookkeeping current in euro, file on time, and the 10%-plus-eurozone combination that makes Bulgaria attractive actually delivers in practice.

FAQ

What currency does a Bulgarian company account in now?

Euro. Bulgaria adopted the euro on 1 January 2026 at the fixed rate EUR 1 = BGN 1.95583, so accounting, invoicing and reporting are in euro. The flat 10% corporate tax is unchanged.

Does my Bulgarian company have to do SAF-T reporting in 2026?

Almost certainly not yet. SAF-T began in 2026 only for the largest enterprises (revenue above ~BGN 300m). Medium and smaller companies are phased in around 2028–2030; keep your accounting data clean so you are ready.

When does a Bulgarian company need a statutory audit?

Only above the size thresholds — a small enterprise is audited if it exceeds two of: BGN 4m assets, BGN 8m net sales, 50 employees. Most founder companies are below this, but all must still file annual accounts.

Do I have to file financial statements publicly?

Yes. Annual financial statements are filed with the Commercial Register by the statutory deadline. Late or missing filings incur penalties and hurt your standing with banks.

Did euro adoption change Bulgaria’s tax?

No. The corporate income tax stays at a flat 10%. Euro membership changed the currency of operation and improved cross-border payments, not the tax rate.

Conclusion

Bulgaria in 2026 is the same low-tax base with a new currency and a new reporting regime that mostly does not touch you yet. Account in euro, keep the flat 10% working for you, ignore the SAF-T noise until your company actually reaches the size band, and never skip the annual financial statements filing with the Commercial Register — that is the obligation that bites, audit or no audit. Kept current, a Bulgarian company pairs the EU’s lowest headline tax with eurozone banking and light compliance. Treated casually, even a 10% company can rack up penalties. The books are the difference.

Running a Bulgarian company and want the euro-era bookkeeping, filings and banking handled properly? Send us your company and turnover on Telegram or WhatsApp, and we will set up clean euro accounting, keep you clear of the audit and filing thresholds, and make sure nothing is missed at the Commercial Register.