What does the income tax calculator calculate?

The income tax calculator is an online tool that calculates income tax for individuals in Bulgaria, taking into account all applicable deductions. The calculator shows how income tax is calculated (income minus deductions, then 10% tax on taxable income), what deductions you are entitled to (children, disabilities, education, health expenses, etc.), and what your net income after tax is. The calculator is useful for individuals who want to understand how their income tax is calculated, plan their finances, file tax returns, and make informed decisions about deductions and tax optimization. It helps you understand the real impact of taxes on your income and plan your financial future.

How to use the income tax calculator?

When to use the income tax calculator

This calculator is useful for individuals who want to calculate the due income tax for 2025, taking into account all deductions (children, disabilities, education, etc.).

Example with specific numbers

Step by step:

1. Enter the annual income in BGN.
2. Add the number of children for child deductions (1,200 BGN per child).
3. If you have a disability, add a disability deduction (1,200 BGN).
4. Add other deductions (education, health expenses, etc.), if any.
5. Click "Calculate" and see the due tax.

What the results show:

• Taxable income – income after deducting all deductions
• Due tax – 10% of taxable income
• Net income after tax – what remains after paying the tax
• Breakdown of deductions – detailed information for each deduction

Sources and notes

The calculator uses current tax rates and deductions for 2025, established by the Income Tax Act and NAP regulations. The tax rate is 10% on taxable income (income after deducting deductions). Child deductions are 1,200 BGN per year for each child (until age 18 or until age 24 if studying). Disability deduction is 1,200 BGN per year if you have a disability certificate. There are also other deductions (education, health expenses, etc.) that may apply. For accurate calculations in complex cases (multiple income sources, tax-free income, tax optimizations), always consult with NAP or an accountant.

Last updated: January 13, 2026

Related calculators

Check out our other useful tax calculators:

• Salary Calculator – Calculate gross and net salary with all taxes and social security
• Social Security Calculator – Calculate social security contributions
• VAT Calculator – Calculate value added tax

Common mistakes / limitations:

• Forgetting deductions – don't forget to add all deductions you are entitled to
• Tax-free income – the calculator does not cover specific tax-free income such as dividends, deposit interest, etc.
• Complex tax situations – for complex cases (multiple income sources, tax optimizations) always consult with an accountant

This text is for informational purposes only and is not individual financial or tax advice.