Going self-employed in the Czech Republic means taking control of your finances — including your taxes. It's different from being an employee, where everything gets deducted automatically. Here's what you need to know for 2026.
Understanding Your Tax Rates
The Czech Republic uses a progressive tax system for individuals, including the self-employed:
- 15% on your tax base up to approximately 1.94 million CZK (36 times the average wage)
- 23% on any amount above that threshold
For most freelancers and small business owners, you'll stay comfortably in the 15% bracket. But if you have a particularly successful year, that 23% rate on higher earnings is something to plan for.
Flat-Rate vs. Actual Expenses: Which Should You Choose?
This is one of the biggest decisions you'll make as a self-employed person in Czechia. You have two options for deducting business expenses:
The Flat-Rate Option
Instead of tracking every receipt, you deduct a fixed percentage of your income. The percentages depend on your business type:
- 80% – agricultural production, craft trades (max 1,600,000 CZK)
- 60% – other trade licenses (max 1,200,000 CZK)
- 40% – freelance/intellectual work, royalties (max 800,000 CZK)
- 30% – rental income (max 600,000 CZK)
This option is simpler and requires minimal record-keeping. Perfect if your actual expenses are lower than the flat rate allows.
Actual Expenses
Track and document every business expense to deduct the real amounts. This requires maintaining proper tax records and keeping all receipts, but it can be more beneficial if your actual costs exceed the flat-rate percentage.
Tax Advances: When and How Much
If your tax liability last year exceeded 30,000 CZK, you'll need to pay quarterly advances throughout the year:
- 30,000 – 150,000 CZK tax: Two advances per year (40% of tax each)
- Over 150,000 CZK tax: Four advances per year (25% of tax each)
Due dates: March 15, June 15, September 15, and December 15.
Social and Health Insurance
Beyond income tax, you're responsible for mandatory insurance contributions:
Social Insurance
- Rate: 29.2% of your assessment base
- Assessment base: 50% of your profit (minimum 25% of average wage)
- Minimum monthly advance for 2026: approximately 3,500 CZK
Health Insurance
- Rate: 13.5% of your assessment base
- Assessment base: 50% of your profit (minimum 50% of average wage)
- Minimum monthly advance for 2026: approximately 2,900 CZK
Together, minimum monthly contributions are around 6,400 CZK — a fixed cost regardless of how much you actually earn.
The Flat-Rate Tax Alternative
If your annual income is under 2 million CZK, consider the flat-rate tax regime (paušální daň). One monthly payment covers income tax, social insurance, and health insurance. No tax return required.
Monthly payments for 2026 range from approximately 7,500 to 16,000 CZK depending on your income tier.
Common Deductible Expenses
If you choose actual expenses, here's what typically qualifies:
- Equipment and technology purchases
- Software licenses and subscriptions
- Office rent or home office costs
- Phone and internet
- Professional training and education
- Business travel expenses
- Marketing and advertising
Tips for Optimizing Your Tax Situation
- Compare flat-rate vs. actual expenses — choose the more beneficial option
- Claim all applicable tax credits and deductions
- Consider the flat-rate tax if you qualify
- Invest in pension savings for tax deductions
- Consult a tax advisor for complex situations