Employees in the Czech Republic can receive a tax refund even without using tax reliefs, tax bonuses, or special deductions.
The most common reasons are:
Income tax overpayment during the year
Unused annual taxpayer discount
These refunds result from the difference between monthly payroll taxation and the final annual tax calculation.
Reason 1: Income Tax Overpayment
Income tax in the Czech Republic (2026) is progressive:
15% applies to annual income up to 1,762,812 CZK
23% applies only to income above this threshold
Employees pay tax monthly through payroll advances and receive a net salary, while the final tax rate is determined after the year ends.
When the annual threshold is roughly divided to 12 months, the monthly gross salary is 146,401 CZK per month.
If the gross salary exceeds this level, part of the gross salary is taxed at 23% during employment, even though the final annual income may remain below the higher tax band.
If employment ends before year-end or income is irregular, the final calculation may apply 15% to the entire income, creating a tax overpayment.
Example — Tax Overpayment
Tax Component | Amount |
|---|---|
Monthly gross salary | 246,401 CZK |
Part taxed at 15% | 146,401 CZK |
Part taxed at 23% | 100,000 CZK |
Months worked | 7 |
Total annual income | 1,724,807 CZK |
23% threshold | 1,762,812 CZK |
Final tax rate | 15% |
Result | Tax refund due to overpaid monthly advances |
Reason 2: Unused Annual Taxpayer Discount
Every employee can claim an annual taxpayer discount of 30,840 CZK.
This tax discount reduces the income tax liability and is typically applied monthly during employment.
If an employee works only part of the year, the full annual discount may not be used.
The unused portion can be returned as a tax refund after the annual tax calculation.
Example — Unused Employee Tax Discount
Item | Amount |
|---|---|
Annual taxpayer discount | 30,840 CZK |
Monthly discount applied | 2,570 CZK |
Months worked | 7 |
Discount used during employment | 17,990 CZK |
Unused discount | 12,850 CZK |
Result | Tax refund |
In practice, many employees receive tax refunds due to a combination of overpaid tax advances and unused taxpayer discounts, especially when they work only part of the year.
It often reflects the difference between monthly payroll taxation and the final annual tax calculation.
Calculate Your Employee Tax Refund
Use our calculator to estimate your employee tax refund in the Czech Republic based on salary, employment period, and applied tax discounts.
The tool helps identify refunds caused by:
• income tax overpayment during the year
• unused annual taxpayer discount
Enter your employment details to see an estimated refund amount calculated according to current Czech tax rules in 2026.
