If you missed your annual tax declaration in the Czech Republic, you should submit it as soon as possible. Late declarations can result in penalties, and unpaid tax or insurance contributions can lead to additional charges.
You may also receive an official letter from the Czech Tax Office, ČSSZ, or your health insurance provider. These letters often arrive in your Czech data box (datová schránka).
This article explains what happens when you miss a deadline, how penalties are calculated, and what the official Czech letters mean.
What Happens If You Miss Your Czech Tax Declaration Deadline?
Freelancers and self-employed people (OSVČ) in the Czech Republic generally need to submit three annual declarations.
Annual Czech Tax and Insurance Declarations
Declaration | Where to submit |
|---|---|
Income tax return (Daňové přiznání) | Czech Tax Office (Finanční úřad) |
Social security report (Přehled o příjmech a výdajích OSVČ) | ČSSZ |
Health insurance report (Přehled OSVČ) | VZP or another health insurance provider |
Each declaration has its own deadline.
Submitting your income tax return does not automatically submit your social security and health insurance reports.
What Is the Penalty for Filing Your Czech Income Tax Return Late?
If you submit your income tax return more than five working days after the deadline, the Czech Tax Office can charge a late-filing penalty.
The penalty is 0.05% of your income tax amount for each day of delay, up to a maximum of 5% of that amount.
For example, if your income tax is 100,000 CZK, the maximum late-filing penalty is 5,000 CZK, regardless of how many days late you submit your tax return.
Example: A Late Czech Income Tax Return in 2026
The deadline for submitting the 2025 income tax return electronically was 4 May 2026.
Let’s say you submitted your income tax return on 5 October 2026, and your income tax amount was 37,515 CZK.
How much would you pay for submitting your tax return late?
Late-Filing Penalty Calculation
Details | Date or Amount |
|---|---|
Income tax return deadline | 4 May 2026 |
Income tax return submitted | 5 October 2026 |
Days after the deadline | 154 |
Days used to calculate the penalty | 146 |
Income tax amount | 37,515 CZK |
Daily penalty rate | 0.05% |
Final penalty | 1,876 CZK |
The total delay was 154 days, but the first five working days are not counted. Because of a public holiday and weekend, the penalty was calculated for 146 days.
Calculation:
37,515 CZK × 0.05% × 146 days = 2,738.60 CZK.
However, the penalty cannot exceed 5% of the assessed income tax.
37,515 CZK × 5% = 1,875.75 CZK.
The Czech Tax Office rounded the final penalty up to 1,876 CZK.
Good to Know
Maximum penalty: The late-filing penalty cannot exceed 5% of your income tax amount.
Penalties below 1,000 CZK: If your calculated penalty is less than 1,000 CZK, the Czech Tax Office will not charge it.
Received a Výzva, Upozornění or Platební výměr from Czech Authorities?
Many freelancers first discover that an annual declaration is missing when they receive an official letter in their mailbox or Czech data box (datová schránka).
The letter may have a Czech title such as “Výzva k předložení přehledu,” “Upozornění,” or “Platební výměr na pokutu za opožděné tvrzení daně.”
These documents come from different authorities and have different meanings.
What Do These Czech Letters Mean?
Common Official Notices for Missing Czech Tax and Insurance Reports
Official document title | Authority | What it means |
|---|---|---|
Výzva k předložení přehledu | ČSSZ | Your annual social security report is missing. |
Upozornění | ČSSZ | A reminder to submit a missing social security report. |
Výzva k podání přehledu OSVČ | Health insurance provider, such as VZP | A request to submit a missing annual health insurance report. |
Platební výměr na pokutu za opožděné tvrzení daně | Czech Tax Office | The Czech Tax Office has issued a penalty because you submitted your tax return late. |
1. Výzva k předložení přehledu— ČSSZ
If you receive a “Výzva k předložení přehledu/ů” from ČSSZ, it means your annual social security report is missing.
ČSSZ will ask you to submit the report within a certain number of days. For example, you may have 8 days from receiving the letter to submit it.
If you don’t submit the report, ČSSZ can estimate how much social insurance you owe and ask you to pay that amount.
What should you do?
Check which year the report is missing for and submit it before the deadline written in your letter.
2. Upozornění — ČSSZ
An “Upozornění” from ČSSZ is a reminder that you haven’t submitted your annual social security report.
You may be asked to submit the missing report within 10 days of receiving the letter.
If you don’t submit it, ČSSZ can charge a fine of up to 50,000 CZK.
This doesn’t mean you will automatically receive a 50,000 CZK fine. It is the maximum fine ČSSZ can charge.
3. Výzva k podání přehledu OSVČ — VZP or Another Health Insurance Provider
If you receive a “Výzva k podání přehledu OSVČ” from your health insurance provider, it means your annual health insurance report is missing.
This report is separate from your income tax return and ČSSZ report.
If you don’t submit it, your health insurance provider can charge a fine of up to 50,000 CZK. The provider can also estimate how much health insurance you owe.
What should you do?
Check which year the report is missing for, submit it, and check whether you have any unpaid health insurance contributions.
4. Platební výměr na pokutu za opožděné tvrzení daně — Czech Tax Office
If you receive a “Platební výměr na pokutu za opožděné tvrzení daně,” it means the Czech Tax Office has charged you a penalty for submitting your tax return late.
The letter explains:
Which tax return was submitted late.
When you should have submitted it.
When you actually submitted it.
How much the penalty is and how it was calculated.
When and where you need to pay.
What should you do?
Check the penalty amount and payment deadline. Follow the payment instructions in the letter.
Can ČSSZ or VZP Charge a 50,000 CZK Fine for a Missing Report?
Yes. Both ČSSZ and Czech health insurance providers can charge fines of up to 50,000 CZK if you fail to submit your annual report.
However, this is the maximum fine. It doesn’t mean you will automatically have to pay 50,000 CZK.
You can find more information about these fines on the official websites of ČSSZ and VZP.
What If You Missed Several Years of Czech Tax or Insurance Reports?
If you haven’t submitted your tax or insurance reports for several years, you need to check each year separately.
You may need to submit missing income tax returns, social security reports, and health insurance reports. You should also check whether you owe any unpaid tax or insurance contributions.
Pexpats — Czech Tax and Accounting Agency can help you check previous years, prepare missing reports, and submit them to the Czech authorities under a power of attorney.
What if I haven’t filed my Czech income tax returns for several years, but I owe no income tax?
If you were required to submit income tax returns for previous years, you still need to file them, even if your final income tax is 0 CZK.
However, there is an important difference when it comes to penalties.
If your final income tax for a particular year is 0 CZK, the standard late-filing penalty is also 0 CZK, because it is calculated as a percentage of your income tax amount.
The same applies to late-payment interest. If you had no income tax to pay, there is no unpaid income tax on which to calculate interest.
FAQ — Missing Czech Tax and Insurance Reports
It means ČSSZ is asking you to submit a missing annual social security report. Check which year is missing and the deadline written in your letter.
It is a reminder or warning from ČSSZ. If you haven’t submitted your annual social security report, the letter may ask you to submit it within a certain number of days.
It means your health insurance provider is asking you to submit a missing annual health insurance report.
It means the Czech Tax Office has charged you a penalty for submitting your tax return late. The letter explains how much you need to pay, how the penalty was calculated, and the payment deadline.
Yes. ČSSZ and Czech health insurance providers can each charge fines of up to 50,000 CZK for failing to submit a required annual report. This is the maximum fine, not an automatic charge.
Yes. You can submit your income tax return and annual social and health insurance reports electronically through the relevant Czech authorities.
Yes. Pexpats can check which reports are missing, prepare them, and submit them under a power of attorney on your behalf.
Need Help With a Missing Czech Tax Report?
Received a Výzva, Upozornění, or Platební výměr, or missed your Czech tax or insurance reporting deadline?
Pexpats — Czech Tax and Accounting Agency helps freelancers in the Czech Republic check missing declarations, submit tax and insurance reports, and review unpaid balances.
The process is available online under a power of attorney, with transparent pricing.
Official Sources and Legal References
Czech Tax Procedure Code — Act No. 280/2009 Coll., § 250 Rules for late-filing penalties, calculations, and maximum limits.
Czech Social Security Administration (ČSSZ) Official information about annual self-employment reports.
Všeobecná zdravotní pojišťovna (VZP) Official information about missing or late annual health insurance reports, including fines of up to 50,000 CZK.
Social Insurance Contributions — Act No. 589/1992 Coll., §§ 15, 22b and 25c Rules for annual social security reports, estimated insurance contributions, and fines.
