Personal Income Tax Withholding for Employees in 2026: How Does It Work in Practice?

Quick Overview

• The employer calculates and pays the monthly tax advance.
• The standard rate is 15%. A rate of 23% applies to the portion of monthly income exceeding 146,901 CZK.
• A signed Taxpayer Declaration allows you to claim the taxpayer deduction and other tax benefits on an ongoing basis.
• For DPPs without a signed declaration, a withholding tax will apply in 2026 up to a maximum of 11,999 Kč per month.
• The final tax amount will be determined during the annual tax settlement or in the tax return.

The tax prepayment is therefore an interim payment, not necessarily the final amount. If you paid more during the year than your annual tax liability, you may have an overpayment. Conversely, if you have multiple jobs or other sources of income, you may be required to file a tax return.

Not sure if your employer calculated your tax correctly or if you need to file a tax return? Describe your situation to us. A tax attorney will review your combined income, the applicable limits, and your eligibility for tax credits, and will recommend the next steps.

What Is a Personal Income Tax Advance Payment?

For employees (i.e., people with income from employment), the logic is simple: the government does not want to wait until the end of the year to collect taxes. Therefore, the law establishes a system whereby the employer calculates the tax on an ongoing basis and withholds it from the employee’s paycheck as an advance payment. Thus, the employee does not pay the tax themselves; instead, the employer withholds and remits it on their behalf.

The key word here is “advance payment”: this is not necessarily the final tax amount. It is an amount paid on an ongoing basis that is reconciled at the end of the year against your actual annual tax liability. The difference is then handled in one of two ways: either you receive a tax refund (overpayment), or you owe additional tax (typically when you have multiple sources of income).

Who Decides the Amount of the Advance Payment

“Employees do not set the amount of their monthly tax advance themselves”— it is calculated by the employer, because the employer acts as the tax payer under the payroll tax system. The tax payer is required to calculate the tax correctly, withhold it from the employee’s wages, remit it to the tax authority, and, to a certain extent, is also responsible for the accuracy of the withholding. In practice, this works similarly to social security and health insurance: the amount is calculated according to the rules, and the employer automatically withholds it from your wages.

However, it is important to note that even though you do not determine the advance payment directly, you can influence its amount —typically by whether you sign a Taxpayer Declaration with your employer and claim (if you meet the conditions) monthly tax credits and, if applicable, tax benefits for children. If you do not sign the declaration (or if the deductions cannot be claimed), the advance payment will be higher.

What Exactly Does Your Employer Do Each Month?

Each month, your employer collects data on your wages (such as your hourly wage, the number of hours worked, bonuses, commissions, and other allowances) and determines which portions constitute taxable income. They then determine the so-called basis for calculating the advance payment —simply put, this is the amount used to calculate your tax (typically your taxable wages for that month, adjusted to exclude items that are either tax-exempt or taxed under a different regime). The employer then calculates the advance payment based on statutory rates, deducts the amount from your paycheck, and remits it to the tax authority.

As an employee, it’s important to know that the advance payment is merely an interim payment “toward” your annual tax liability. The final reconciliation takes place during the annual tax settlement or on your tax return (which is why you may end up paying more during the year and then receive a refund, or vice versa).

What to Watch Out for in Practice

A common misconception is that an employee can simply tell their employer how much tax to withhold. However, the employer must follow the law and the information received from the employee. If the employee does not sign the Taxpayer’s Declaration or does not provide proof of eligibility for a tax credit in a timely manner, the payroll accountant generally cannot automatically apply the credit.

Withholding tax for students: is there a difference?

One thing needs to be made clear here: a student is not a special tax category simply because they are studying. When you work part-time as a student, you’re still typically considered an employee with income from employment for tax purposes, and the same rules apply to calculating withholding tax as they do for anyone else.

However, one thing has changed in recent years that is practically important for students: the student tax credit has been eliminated for income earned starting in 2024. It could be claimed for the last time for the 2023 tax year.

What does this mean in practice? If you’re a student and you work, your highest tax deduction will likely be the basic taxpayer deduction (which has been retained). The law sets the basic taxpayer deduction at 30,840 CZK per year. And once you sign the taxpayer declaration, the payroll department will apply the corresponding monthly portion of the deduction, and your personal income tax prepayment may end up being very low—sometimes even zero (depending on your salary).

With part-time jobs, it’s common for tax to be withheld at source (rather than paid as an advance) if a signed declaration isn’t provided. In that case, the taxpayer deduction won’t be applied during the month, but sometimes the tax can be reclaimed through a tax return.

Taxpayer Declaration: Why It’s Essential for Advance Payments

The personal income tax declaration for employees (commonly known as the “pink form”) is a document that determines whether your employer will take your tax benefits into account when calculating your monthly tax advance payments. When you sign it, you’re giving your employer clear instructions: apply my tax credits and, if applicable, tax benefits. You’ll usually see the result right away on your pay stub—your tax withholding will be lower, sometimes even zero (typically for lower incomes and when claiming the basic taxpayer deduction).

If you do not sign the pink form, your employer will still calculate your tax according to the law, but they will have no basis on which to apply the deductions and benefits (or will apply them only to a limited extent, depending on the tax regime that applies to you).

Your employer will typically give you the Declaration to sign when you start work. However, for part-time jobs (DPP/DPČ), this does not always happen automatically in practice, or no one may actively offer it to you—and then it happens that the employee realizes only later that they could have had a higher take-home pay.

Why You Should Sign It with Only One Employer

A key practical rule is that the tax credit cannot be claimed twice in the same calendar month. That’s why the declaration typically applies to only one employer (especially if you have multiple concurrent employment relationships). The reasoning is simple: the taxpayer deduction and other deductions aren’t applied separately to each paycheck but are tied to the taxpayer as an individual—so it wouldn’t make sense for them to be applied simultaneously by two employers at the same time.

In other words: if you have two part-time jobs at the same time, it’s quite common to sign the tax declaration for only one of them—that’s where the deductions will be reflected in your advance payments. For the second part-time job (without a declaration), your advance payment will be higher, or in some cases, withholding tax may apply.

The Declaration as a Ticket to the Annual Tax Settlement

The declaration has another very practical benefit: it also serves as one of the basic documents for the annual settlement of advance payments and tax credits, which your employer can process for you (if the conditions are met). This is the most convenient option, as you’ll avoid having to file a tax return, and your employer will refund any overpayment through your paycheck.

How Personal Income Tax Advances Are Calculated for Employees

Each month, your employer calculates your personal income tax advance payment based on what is known as the “advance payment calculation base.” Simply put, they take your taxable wages for the given month (i.e., the amount that is actually subject to taxation) and, based on statutory rules, determine how much you must pay in advance for that month. The advance payment is therefore a provisional payment—it is not yet the final annual tax, but rather an amount that is accumulated throughout the year and settled at the end of the year.

The calculation itself is most often based primarily on the amount of your taxable wages, the tax rate, and whether you have signed a taxpayer declaration with your employer.

Two tax rates apply to income from employment. Most employees pay an advance payment of 15%. In the monthly calculation for 2026, the 23% rate will apply only to the portion of the advance payment base that exceeds 146,901 CZK per month.

Be aware of the difference between the monthly advance payment and the final annual calculation. When determining the annual tax, the higher rate applies to the portion of the tax base exceeding 1,762,812 CZK per year. Therefore, an employee may pay part of the advance payment at a 23% rate in a given month, but during the annual settlement or in the tax return, everything is recalculated based on the full-year income.

When Withholding Tax Is Paid Instead of Advance Tax

There are two tax regimes for employee income that can be confusing at first glance: advance tax and withholding tax. You’re familiar with advance tax from your regular paycheck—your employer calculates it each month and withholds it as an advance on your annual tax. Withholding tax, on the other hand, applies only in certain situations defined by law and typically concerns smaller sources of additional income (mainly contract work) where you haven’t signed a taxpayer declaration with the employer.

The most common case: A DPP contract earning up to 12,000 CZK per month with a single employer

The most common situation is part-time work under a contract for work (DPP). If you have not signed a taxpayer declaration and the conditions for withholding tax are met, income from a DPP up to 12,000 CZK per calendar month is subject to withholding tax.

Practical example: You have a DPP for 8,500 CZK per month and you have not signed the Declaration. Your employer will withhold tax from your pay. However, the following month you receive 13,000 CZK—this exceeds the limit, so the tax regime changes: such income is usually taxed through advance payments (and this often also affects insurance contributions, but that’s a different topic).

Do you have multiple part-time jobs, combine employment with self-employment, or aren’t sure if the correct amount of tax was withheld? When multiple sources of income overlap, the deciding factors may include not only the amount of income but also the month of payment and where you signed your Taxpayer Declaration. We’ll help you determine whether you can request an annual tax settlement or if you need to file your own tax return.

Contracts for Work and Other Low-Income Earnings: The Threshold for Health Insurance Coverage Is the Deciding Factor

However, withholding tax does not apply only to DPP contracts. The law also covers a second category: other income from dependent activity (typically DPČ contracts or so-called “small-scale employment”), where it is assessed whether your total monthly income from the same employer falls below the threshold for participation in health insurance.

The threshold for 2026 is set at 4,500 CZK. Therefore, if you do not have a declaration and your compensation from a DPČ (or another small-scale employment relationship outside of a DPP) with a single employer does not exceed 4,499 CZK per month, it will be subject to withholding tax.

Withholding tax is usually final, but sometimes you can get it back

In practice, withholding tax is often treated as final—the employer withholds it, remits it, and that’s the end of the matter for that income. This is also why annual tax settlements are often not even an issue for part-time jobs paid entirely through withholding tax.

At the same time, however, you have the option to include income taxed at source in your tax return (typically when it’s in your best interest due to tax credits)—and then the withholding tax will be taken into account in your return. However, if you choose this approach, you must include all income that falls under this regime in your return (rather than just selecting the portions that seem most advantageous to you).

Annual Tax Settlement vs. Tax Return

At the beginning of each year, employees often ask themselves the same question: how should they handle their taxes—through an annual tax settlement or a tax return? The main difference lies in who, at the end of the year, performs the final comparison between how much you paid in advance payments during the year and what your actual annual tax liability is. With an annual tax settlement, your employer handles this for you; with a tax return, you act as the taxpayer and settle everything yourself.

When an Annual Tax Reconciliation Is Sufficient

An annual tax settlement is generally sufficient if you have income from employment from only one employer, or if you changed employers during the year, but you never held two jobs simultaneously within a single calendar month (i.e., you did not work for two different employers at the same time during the same period) and you signed a tax declaration with all of them for the given tax period. At the same time, you must meet the condition that (excluding exempt income and income taxed at source) you have no other taxable income exceeding 50,000 CZK.

In this situation, your employer will calculate your annual tax based on the documents you provide, compare it to the advance payments withheld from your pay throughout the year, and the difference will then be reflected in your paycheck. You generally need to request an annual tax settlement by February 15.

When You Typically Need to File a Tax Return

You typically need to filea tax return when your situation has become so complex during the year that your employer can no longer simply resolve it through an annual tax settlement. The most common trigger is having multiple employers during the same period —for example, two full-time jobs or two part-time jobs at the same time, for which advance tax payments were withheld during that same period.

A second common reason is other income that doesn’t fall solely under regular employment—typically business income, rental income, or larger one-time taxable income—and exceeds the threshold of 50,000 CZK.

And thirdly: filing a tax return may be necessary even if you want to retroactively claim tax credits or deductions that were not taken into account during the year (for example, because you did not have a signed declaration or you submitted the required documents late).

Total Withheld Income Tax Advances on Employment Income

Whether you’re handling your annual tax settlement with your employer or preparing to file a tax return, you’ll come across an important figure: the total amount of withheld income tax on employment income. You’ll find this on the taxable income statement you receive from your employer (typically at the end of the year or when you leave your job).

What exactly does this figure mean? It is the sum of all tax withholdings that your employer deducted from your paycheck throughout the year and remitted to the tax authority. This total is then crucial for the final tax settlement: during the annual tax settlement or on your tax return, the total of the advance payments is compared to your annual tax liability. If you paid more in advance payments, you’ll have an overpayment and the money will be refunded to you (either through your employer or by the tax authority). If, on the other hand, you paid less, you’ll owe the difference.

Have you found an error in your taxable income statement, or is your employer refusing to correct the mistake? Don’t wait until the last minute to resolve the issue. We’ll review your documents, explain the correct tax procedure, and, if necessary, prepare further legal steps on your behalf.

Summary

Summary

Income tax withholding is a monthly payment that your employer calculates, deducts from your paycheck, and remits to the tax authority. In 2026, the standard rate is 15%, while the 23% rate applies to the portion of the taxable income exceeding 146,901 CZK in the monthly calculation. The amount of the withheld advance payment is also significantly affected by whether you have signed a Taxpayer Declaration with your employer and provided proof of your entitlement to tax credits or tax benefits.

For DPP contracts without a signed declaration, withholding tax in 2026 applies to monthly compensation of up to 11,999 CZK. For DPČ contracts and other small-scale employment, the threshold for withholding tax is 4,499 CZK. The final tax amount will only be determined by the annual tax settlement or tax return. Employees typically file their own tax returns if they have concurrent income taxed at source or other income under Sections 7 through 10 of the Income Tax Act exceeding 20,000 CZK per year.