Corporate Tax System in Bulgaria

Standard 10% rate

The 10% rate applies to taxable profit, not gross revenue, not cash received, not what the owner mentally calls “money left over.” You begin with the accounting result for the year, then you adjust it under the Corporate Income Tax Act. Some expenses stay in. Some are added back. Some timing differences shift profit between years. That is normal European corporate taxation, just with a relatively lean rate.

The law also does not generally split ordinary trading income, passive income, and capital gains into separate corporate buckets the way some founders expect after working in more layered systems. For many businesses, one rate covers the company’s taxable base. That stability is part of Bulgaria’s appeal. International commentators have said as much for years, and frankly they are right on that point.

One caveat worth saying out loud: if you run a very large multinational group, the flat 10% story may not be the final story. Bulgaria, like other EU states, has had to deal with global minimum tax rules for groups over the Pillar Two threshold. Deloitte’s note on Pillar Two compliance in 2026 is a decent warning shot if your consolidated group revenue is at least EUR 750 million. For normal founder-led SMEs, that is background noise. For giant groups, it is not.

Separate dividend tax

Corporate income tax and dividend tax are not the same animal. A Bulgarian company can earn profits, pay 10% corporate income tax, and then face a separate tax on distributions when cash goes out to shareholders.

The standard dividend withholding tax is usually 5%. That often applies when a Bulgarian company distributes dividends to individual shareholders and to many foreign recipients. Yet even here, the headline rate is only the beginning. Domestic exemptions, EU rules, and double-taxation treaties can lower or remove the withholding in the right structure. The National Revenue Agency’s page on withholding tax rules and rates is useful, but it won’t decide your case for you. Beneficial ownership, legal form, treaty residence, and documentation still do the heavy lifting.

This is where foreign owners get too casual. They form a company, see the 10% corporate tax rate in Bulgaria, and assume dividend extraction is automatic. Then the group structure turns out not to meet an exemption, or the documents for treaty relief are incomplete, or the owner is tax resident in a country that taxes the dividend again. Suddenly the “simple” plan has two tax layers and one irritated accountant.

Other business levies

A Bulgarian company does not live under corporate income tax alone. That matters because people often mix unrelated obligations into one fuzzy tax bucket.

• VAT is separate. Corporate tax is a profit tax. VAT is a transaction tax under the VAT Act, with its own registration triggers, returns, and payment cycle.

• Payroll liabilities are separate. If the company pays salaries or management remuneration, personal income tax and social security contributions enter the picture fast.

• Withholding tax is separate. Cross-border payments for dividends, interest, royalties, technical services, or management fees may trigger tax at source.

• Local or sector-specific rules may also apply. In some fact patterns you may see taxes on expenses, local fees, licensing burdens, or special regimes that sit outside the basic 10% story.

That distinction is boring until it costs money. Then it becomes very interesting.

Accounting result

Bulgarian companies generally prepare accounts under Bulgarian accounting standards or IFRS, depending on their profile. The accounting result is your starting point. Revenue is recognized, expenses are booked, depreciation is handled, receivables and liabilities sit where they belong, and only then do you move into tax territory.

That matters because many foreign founders still think in cash. Money received feels like profit. Money spent feels deductible. The law is less sentimental than that. Accrual accounting leads; tax follows with adjustments.

A quick scenario makes this less abstract. Say a Bulgarian consulting company has BGN 300,000 in revenue and BGN 220,000 in booked expenses. The accounting profit is BGN 80,000. If BGN 10,000 of those expenses are non-deductible under the Corporate Income Tax Act, the taxable profit becomes BGN 90,000. Corporate income tax at 10% becomes BGN 9,000, not BGN 8,000. That single adjustment is why “my accountant already expensed it” is not a tax argument.

Tax adjustments

The Corporate Income Tax Act contains the machinery that turns accounting profit into taxable profit. Some of the common adjustments come from:

• non-deductible expenses,

• tax depreciation rules that differ from accounting depreciation,

• provisions and impairments that are limited or deferred for tax,

• hidden profit distribution issues,

• transfer pricing adjustments,

• interest limitation or thin capitalization concerns in certain structures,

• timing rules for unpaid expenses or cross-period items.

This is the section of the law that punishes founders who use the company like a personal wallet. Personal vacations booked as “business development,” family devices with no business use, shareholder spending routed through the company, or vague consulting invoices from related parties can all be challenged. In Bulgaria, that challenge may show up as a non-deductible expense, a hidden profit distribution, or a withholding issue, depending on the facts. None of those endings are charming.

Practical note: Low-rate jurisdictions are often mistaken for lax jurisdictions. Bulgaria’s rate is light. Its documentary expectations are not. If the expense exists only in your imagination and a bank statement, expect grief.

Loss carryforward

Yes, tax losses can generally be carried forward for up to five successive tax years. That is useful for start-ups, investment-heavy operations, and businesses with uneven project cycles. It is not a blank check.

You need the loss properly reported, the records need to exist, and the future setoff has to follow the statutory sequence. Certain reorganizations, ownership changes, or artificial arrangements can create limits or scrutiny. A real loss from a real business is one thing. A decorative loss built from weak paperwork is another.

The same logic applies to founders who ask whether they owe corporate tax if there is no profit. If taxable profit is zero or negative, there is usually no corporate income tax due for that year. Still, filing duties and accounting duties may remain. No profit does not mean no obligations.

Annual return

The annual corporate tax return goes to the National Revenue Agency. The filing covers taxable profit, tax due, adjustments, advance payments, and related disclosures. In parallel, the company may also need to file or publish annual financial statements through the Trade Register by the separate accounting deadline, typically later in the year. Those are related duties, not the same duty.

Foreign founders often confuse the tax return with VAT returns, payroll filings, or annual statistics filings. They are different. Bulgaria’s tax system likes calendars. You should too.

If the company had no activity or no profit, the filing position needs review rather than wishful thinking. A company with no taxable profit may owe no corporate tax, yet still need annual reporting. A truly inactive company may file an inactivity declaration, but only if the facts actually support it. “We barely used it” is not the same as no activity.

Advance payments

Many Bulgarian companies do not wait until March to settle everything. Advance corporate tax payments may be required during the year, usually based on the prior year’s net sales revenue and the current year forecast.

• Companies below the lower statutory revenue threshold generally do not make advance installments.

• Companies in the middle band usually make quarterly installments.

• Companies above the higher threshold usually make monthly installments.

The classic working thresholds used in practice are BGN 300,000 and BGN 3,000,000 of prior year net sales revenue, though the live law should always be checked before filing season. Quarterly installments are usually lighter to manage. Monthly installments demand closer forecasting discipline. If the company grossly underestimates its expected tax, default interest can bite on the shortfall.

A boring but sensible move is to map the whole year in January: tax return, advance installment cycle, annual accounts, VAT registration status, payroll deadlines, and any withholding filings. Zaraconsult’s 2026 Bulgarian company tax deadline checklist is useful for that calendar view, even if your own accountant should still own the actual compliance.

Late filing penalties

Yes, penalties apply. So does statutory interest on late payment.

The exact amount depends on the breach, the taxpayer, whether it is a repeat offense, and which law the sanction comes from. In practice, late filing or incorrect filing can lead to monetary penalties that start in the hundreds of BGN and climb into the thousands, while late payment adds interest that keeps quietly running. If the problem involves withholding tax, transfer pricing, false declarations, or missing accounting records, the conversation gets more expensive and less pleasant.

That is why serious founders treat corporate tax filing as legal compliance, not admin clutter. One late return will not destroy a healthy business. A pattern of messy filings absolutely can.