Can I earn on the side without a trade licence in Czechia?
Yes — as long as it is truly occasional. One-off gigs (mowing a garden, tutoring, selling garden surplus, helping on a build) fall under occasional income (§ 10): up to CZK 50,000 per year it is tax-exempt, levy-free and unreported. Watch the trap: cross the limit and you tax the whole amount, not just the excess. And the decisive line is not the money anyway, but systematicity: repeat orders, advertising and regular customers are a business requiring a trade licence — even if you only made CZK 20,000. A bricklayer moonlighting every weekend cannot hide under the 50,000 limit; unauthorised business is fined into the hundreds of thousands.
📋 The rules
- Occasional income up to CZK 50,000/yr: no tax, no levies, no reporting
- Above 50,000: the entire income goes into the tax return (§ 10)
- Systematic = business: repetition, ads, customers → trade licence needed
- Selling your own garden surplus: also occasional income
- Rentals and selling goods have their own tax regimes
🔓 Exceptions
- Royalties, work agreements (DPP/DPČ) and company payouts run under their own regimes
- Beekeepers: special exemption per hive up to a set count
- Renting out and selling your own goods: separate tax regimes that do not count towards the occasional-income limit
⚠️ Penalties & fines
Undeclared income above the limit: the tax office assesses the tax and adds penalties — and because everything above CZK 50,000 is taxed, not just the excess, the bill is bigger than people expect. Systematic business without a licence is the misdemeanour of unauthorised business, fined up to roughly CZK 500,000, and serious forms are criminal. The overlooked layer is levies: occasional income is exempt from them, a business is not. Platforms leave a trail too: under DAC7 they report sellers above 30 transactions or €2,000 a year.
📎 Official sources
- BusinessInfo · Occasional income up to 50k (CS) →
- Fakturoid · Occasional income guide 2026 (CS) →
- Dostupný advokát · Business without a licence (CS) →
❓ Frequently asked
How much can I earn tax-free?
Occasionally up to CZK 50,000 a year — that income is exempt, untaxed and needs no tax return. Cross the limit and you tax the entire amount, not merely the part sitting above the fifty thousand.
Where's the line between a gig and a business?
In systematicity, not in the sum: a one-off favour for a neighbour is fine, while repeat jobs with advertising and regular customers are a business. That needs a trade licence even if it earns you only a few thousand.
Must I issue receipts?
Not invoices — you are not an entrepreneur and occasional income is not invoiced. A written confirmation of payment is still worth having for both sides, especially as you approach the limit and may need to prove your income.
Does the limit cover selling on Vinted?
No — selling your own used items has its own tax regime and is exempt once the holding period is met. Platforms have nonetheless reported sellers above 30 transactions or €2,000 a year under DAC7 since 2023.
What about a part-time job at a company?
That is dependent work, not occasional income: it runs under DPP or DPČ agreements and the employer handles the tax and levies. The CZK 50,000 limit neither applies to it nor counts it in.
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