Income Taxes
Once a year, most internationals are obliged to fill in and file a tax return. The deadline for filing the last year income tax return (but also for paying the tax) is on the 1st of April 2026. In the case of processing and filing the tax return online, the deadline is the 4th of May.
Every month your employer deducts health insurance (4.5%) and social security contribution (7.1%) from your gross salary (100%). Your employer also pays health insurance (9%) and social security contribution (24.8%) as an extra payment to the Government. Income tax of 15% is calculated from the gross salary. Monthly incomes over CZK 131,901 are taxed with a higher, 23% tax.
Your employer also reduces your monthly tax by CZK 2570 (as of 2022) – this is possible only in one employment contract at the time (if you have few jobs), after signing the “Pink Paper” (=Prohlášení poplatníka, declaration of the taxpayer). After signing the “Pink paper”, the tax relief is automatic and your employer should offer you this option. See more about tax reductions below.
- Mostly people without taxable incomes (housewives/husbands, pensioners, students with “DPP”);
- People who have only one employment at the time, or more jobs that were consequently one after each other;
- People with monthly income from “DPP” under CZK 11,500 (as for 2025);
- Self-employed under flat-rate tax regime.
However, those groups may submit the tax return on their own or via the employer and claim various tax reductions (tax reliefs and allowance from the tax base).
1. Your employer can do that for you
- But only if you do not have any other jobs, or any other income (i.e. renting a flat, shares, other business activity, etc). DPP under CZK 11,500 doesn’t count.
- If your employer will offer you help – let them know in mid-January that you would like them to file your taxes. Ask for yearly reconciliation (“roční zúčtování”).
- It pays to ask your company accountant what allowances and reliefs you can ask for. Mostly, employers will require a Czech tax domicile from you. You will need to obtain it yourself from Financial Authority (see below).
2. Filing tax return on your own
When do you have to file your Tax return on your own?
- If you had other incomes (renting a flat, from abroad, from stocks, from bitcoins, etc.);
- If you have more than one employment at the same time, “DPP” over CZK 11,500/monthly, “DPC“ over CZK 4,500/monthly;
- You are a freelancer unless you pay flat tax;
- If your employer refuses to do it for you (which happens often to foreign employees).
How to fill Tax return?
- You will need a Confirmation of taxable incomes (“Potvrzení o zdanitelných příjmech”) form from your employer(s), it has to be requested from the employer(s) in January/February.
- You can submit it in person. Find a specimen online (in English), but you have to submit the filled in form solely in the Czech language. Thus, we strongly recommend to find an English-speaking accountant or even a tax consultant to help you with this task. The latest submission date is at the 1st of April.
- You can submit your tax return in any office of the Financial Authority (there are 3 offices in Ostrava), but if you already have temporary/permanent residence, it should be in the area of your residence. Also, if you submit your tax return once you also have to do it in the same office next year, unless you will ask the Tax Authority for the relocation of your “profile” to another tax office (in case you will move to another place).
- You can submit it online via gov website mojedane.cz (you can access it through your Data mailbox), unfortunately only in the Czech language.
There are a number of various allowances and tax reliefs that can be used. The differences are following: tax allowances are adjusting (decreasing) the tax base from which income tax (15%) is calculated. Then the tax reliefs are decreasing the tax itself.
Allowance from the tax base
By various allowances, you can adjust (reduce) the tax base, not the tax itself. The general rule is that every allowance of CZK 1,000 will reduce the tax by CZK 150. Those are allowances from the tax base for 2025:
- Private pension savings, life insurance and “DIP”, all together up to CZK 48,000
- Charity gifts (min. CZK 1,000 up to 30% of tax base)
- Blood donation up to CZK 3,000, bone marrow/stem cell donation up to CZK 20,000
- Mortgage interests (up to CZK 300,000 /150,000)
Tax reliefs
After calculating the final 15% from the tax base (above), then tax reliefs can be used as discounts on the final tax. Maximum tax reliefs for 2025 are:
- For taxpayer (“personal tax credit”) CZK 30,840
- For a maintained spouse caring for a child up to 3 years of age CZK 24,840
- For maintained children(s) CZK 15,204 to 27,840
All allowances and/or reliefs (except taxpayer discount) can only be applied to Czech tax residents (or to EU/EEA citizens having 90 % of your world income from the CZ), please see below how to obtain Czech tax domicile.
How to apply for tax reductions?
- Through your employer after signing the “Pink Paper” (=Prohlášení poplatníka, declaration of the taxpayer). This is possible only in one employment contract at the time (if you have few jobs).
- Through filing Tax return (see above) on your own.
An example:
If your yearly tax base is CZK 400,000 and you won’t use any tax allowances/reliefs, then your tax will be CZK 60,000. But it might be way less. You will first use tax allowances, eg. the amount of paid mortgage interest and gifs in the value of CZK 20,000, to decrease the tax base, so your new tax base is now CZK 380,000 of which tax (15%) is CZK 57,000. Now you will use tax reliefs, eg. a taxpayer bonus of CZK 30,840 and a child bonus of CZK 15,204, and your final tax will be only CZK 10,956.
The income tax of 15% is calculated from your tax base. To determine your tax base, you must deduct your business expenses from your total income. In the Czech Republic, you can choose between few methods of calculating expenses, which also dictates what kind of records you are required to keep:
1. Expenditure Flat Rate (výdajový paušál)
This is the simplest and most common method for freelancers. Instead of tracking every receipt, you estimate your expenses as a fixed percentage (30% to 80%) of your total income, depending on your trade license type.
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Documentation needed: You only need to maintain Records of Income (evidence příjmů) – a simple list of all the income you received (issued invoices). You don’t need to archive receipts for your costs.
2. Actual Expenses
You deduct the exact amount you spent on your business. This is beneficial if your real costs (rent, materials, equipment) are higher than the flat rate percentages.
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Documentation needed: You must maintain detailed Tax Records (daňová evidence). This means you must save and archive every single receipt, invoice, and proof of payment related to your business expenses. This method usually requires the help of an accountant.
Final Calculation
Once you have your tax base (income minus expenses), it can be further lowered by applying tax allowances. From this “reduced tax base,” the final 15% income tax is calculated.
Lastly, the total tax amount can be decreased by various tax credits (e.g., for children, the basic taxpayer credit). Please see the sections above for more details on specific allowances and credits.
Self-employed persons must fill and file a tax return electronically via gov website mojedane.cz (you can access it through your Data mailbox).
The deadline for filing last year’s income tax return (but also for paying the tax), is usually April 1st as you must file your tax return electronically. In case of processing and filing the tax return by the advisor, the deadline is postponed to July 1st, but in this case, on March 1st, the entrepreneur should submit a power of attorney granted to the tax advisor to the Tax Authority.
!! IMPORTANT !!
Once a year, apart from the Tax Return you have to submit also the Summary of Income and Expenses to both the social security office and your health insurance office. The deadline is 4th May. All self-employed persons (except those with flat-rate tax) are obliged to fill in and submit the summary, even those for which there is no minimum assessment base. Please ask your tax advisor for these statements along with Tax Return.
If you own an apartment, house, or land in the Czech Republic, you are subject to the annual Real Estate Tax. The rules for this tax are different from income tax – you generally only need to file a return once, unless you buy or sell property.
When do you need to file a tax return?
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Only once: You must file a tax return (přiznání k dani z nemovitých věcí) by January 31st of the year following the purchase of your property.
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No changes, no filing: If you filed in previous years and there were no changes to your property ownership (e.g., you didn’t buy a new garage or sell a plot of land), you do not need to file again. The tax office will automatically calculate your tax every year.
Important Deadlines:
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Filing the return: By January 31st.
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Paying the tax: By May 31st every year.
How to pay? The Financial Office (Finanční úřad) will send you payment details (via a “složenka” mail or your Data Box) during April or May. You can then pay via bank transfer or at any Czech Post branch.