Deadlines for Filing Tax Returns:
- By April 1, 2026 – paper submission
- By May 4, 2026 – electronic submission
- By July 1, 2026 – if using the services of a tax advisor
Leave your accounting to us! We offer comprehensive services, including preparation of tax returns (including zero tax returns), bookkeeping, communication with the tax office, and tax optimization. With us, you have peace of mind and no worries. More information here.
Who Must File a Tax Return for 2025:
- Employees who had income from multiple employers simultaneously (without year-end tax reconciliation)
- Self-employed individuals (sole proprietors)
- All legal entities, including companies that did not operate or report any income in 2025
Are you paying unnecessarily just for zero corporate tax (DPPO)? We buy/take over your unused company – VAT payer or non-payer! More information here. Call +420 607 066 350 or write to jara@altaxo.cz
Most Common Mistakes in Tax Returns:
- Incorrect income or expense data – mistakes in numbers can lead to additional payments or penalties
- Missing or incorrectly attached documents – do not forget any invoices or confirmations
- Forgotten attachments – every form and attachment is important, even for zero DPPO
- Late submission – deadlines must be met, otherwise penalties apply
- Mistakes in zero DPPO returns – even if the company made no profit, the return must be correctly completed
- Ignoring legislative changes – tax rules change, and not knowing them can cause errors
Key Changes Compared to Last Year:
- Exemption of income from the sale of shares and stakes
- Income of members of statutory bodies – non-residents
- Deduction of interest – extended to housing cooperatives