2026 Tax Deadlines & Due Dates
Complete Filing Calendar for USA, UK, Germany, France, and Spain
Never miss a tax deadline again
This comprehensive guide covers all major tax deadlines for 2026 across five countries. Bookmark this page and set calendar reminders for dates that apply to you. All dates assume normal filing schedules - extensions may be available.
United States (IRS) Tax Deadlines 2026
Internal Revenue Service (IRS) filing and payment due dates
| Deadline | Date | What's Due | Who It Affects |
|---|---|---|---|
| Q1 Payment January 15, 2026 | January 15, 2026 | 4th quarter 2025 estimated tax payment | Self-employed, freelancers, investors |
| Main Deadline April 15, 2026 | April 15, 2026 | 2025 individual tax returns (Form 1040) & balance due | All individual taxpayers |
| Business Returns March 16, 2026 | March 16, 2026 | Partnership returns (Form 1065) | Partnerships, LLCs, S-Corps |
| C-Corp Returns April 15, 2026 | April 15, 2026 | C-Corporation returns (Form 1120) | C-Corporations |
| Extension Deadline October 15, 2026 | October 15, 2026 | Extended individual returns (if filed Form 4868) | Taxpayers with extensions |
| Estimated Taxes Quarterly | Apr 15, Jun 15, Sep 15, Jan 15 | Quarterly estimated tax payments | Self-employed, business owners |
⚠️ IRS Penalties to Avoid
- Failure to File: 5% of unpaid tax per month (max 25%)
- Failure to Pay: 0.5% of unpaid tax per month
- Late Estimated Payments: Underpayment penalties apply
- Extension Note: Form 4868 gives extra time to file, NOT extra time to pay
State Deadlines: Most states follow IRS deadlines, but exceptions exist. California's deadline is typically April 15th. Some states without income tax (FL, TX, NV, etc.) have different business filing requirements.
United Kingdom (HMRC) Tax Deadlines 2026
HM Revenue & Customs self-assessment and corporation tax deadlines
| Deadline | Date | What's Due | Who It Affects |
|---|---|---|---|
| Online Filing January 31, 2026 | January 31, 2026 | 2024/25 tax year online self-assessment return | Self-employed, landlords, high-income earners |
| Payment Deadline January 31, 2026 | January 31, 2026 | Balance of tax due for 2024/25 + 1st payment on account | Self-assessment taxpayers |
| Paper Returns October 31, 2025 | October 31, 2025 | 2024/25 tax year paper self-assessment returns | Paper filers (not recommended) |
| 2nd Payment on Account July 31, 2026 | July 31, 2026 | Second payment on account for 2025/26 tax year | Self-assessment taxpayers |
| Corporation Tax 9 months after FYE | Varies | Corporation tax payment (9 months after financial year end) | Limited companies |
| CT600 Filing 12 months after FYE | Varies | Corporation tax return (CT600) filing deadline | Limited companies |
⚠️ HMRC Penalties to Avoid
- Late Filing: £100 immediate penalty, then daily £10 penalties after 3 months
- Late Payment: 5% of tax due at 30 days, 6 and 12 months
- Paper Returns: Higher penalties and no automatic calculation
- Payment on Account: Required if tax bill over £1,000 (unless <80% of total)
Germany (Finanzamt) Tax Deadlines 2026
German income tax (Einkommensteuer) and VAT (Umsatzsteuer) deadlines
| Deadline | Date | What's Due | Who It Affects |
|---|---|---|---|
| Voluntary Filing July 31, 2026 | July 31, 2026 | 2025 tax return for voluntary filers (Einkommensteuererklärung) | Employees, retirees, investors |
| Mandatory Filing May 31, 2026 | May 31, 2026 | 2025 tax return for mandatory filers (tax advisor gets extension) | Self-employed, business owners |
| VAT Advance Returns Monthly/Quarterly | 10th of following month | Umsatzsteuervoranmeldung (VAT preliminary return) | Businesses registered for VAT |
| Annual VAT Return May 31, 2026 | May 31, 2026 | Umsatzsteuererklärung (annual VAT return for 2025) | VAT-registered businesses |
| Trade Tax Varies by municipality | Varies | Gewerbesteuer (trade tax) advance payments | Businesses with commercial activity |
| With Tax Advisor December 31, 2026 | December 31, 2026 | Extended deadline when using a German tax advisor | Taxpayers using Steuerberater |
⚠️ German Penalties to Avoid
- Verspätungszuschlag: Late filing penalty of €25 per month (min €25, max €250) Zinsen: 6% annual interest on late payments from due date
- VAT Late Filing: Up to €5,000 penalty for serious cases
- Estimation Risk: Finanzamt can estimate your income if you file late
State Variations: While federal deadlines apply nationwide, some states (Bundesländer) may have additional local tax deadlines. Always check with your local Finanzamt.
France (Impôts) Tax Deadlines 2026
French income tax (Impôt sur le revenu) and business tax deadlines
| Deadline | Date | What's Due | Who It Affects |
|---|---|---|---|
| Online Filing Zone 1 May 22, 2026 | May 22, 2026 | Online declaration for départements 01-19 | Residents of those areas |
| Online Filing Zone 2 May 29, 2026 | May 29, 2026 | Online declaration for départements 20-54 | Residents of those areas |
| Online Filing Zone 3 June 5, 2026 | June 5, 2026 | Online declaration for départements 55-976 | Residents of those areas |
| Paper Returns May 19, 2026 | May 19, 2026 | Paper tax return (declaration papier) | Paper filers (less common) |
| Corporate Tax April 15, 2026 | April 15, 2026 | First installment of corporate tax (IS) | Corporations |
| VAT Returns Monthly/Quarterly | 19th of following month | TVA (VAT) returns and payments | VAT-registered businesses |
⚠️ French Penalties to Avoid
- Late Filing: 10% of tax due (minimum €40)
- Late Payment: 5% penalty plus 0.2% interest per month
- VAT Late Filing: 5-40% penalties based on delay
- Zone System: Deadlines vary by postal code zone - know your zone!
Payment Schedule: French income tax is paid in monthly or quarterly installments. If you file late, you'll miss the installment schedule and owe the full amount immediately.
Spain (Agencia Tributaria) Tax Deadlines 2026
Spanish income tax (IRPF), VAT (IVA), and corporate tax deadlines
| Deadline | Date | What's Due | Who It Affects |
|---|---|---|---|
| Annual Income Tax June 30, 2026 | June 30, 2026 | 2025 income tax return (Declaración de la Renta) | Residents with Spanish income |
| Wealth Tax June 30, 2026 | June 30, 2026 | Wealth tax declaration (Impuesto sobre el Patrimonio) | High net worth individuals |
| Quarterly VAT April 20, 2026 | April 20, 2026 | Q1 2026 VAT return (Modelo 303) | Businesses registered for IVA |
| Corporate Tax July 25, 2026 | July 25, 2026 | 2025 corporate tax return (Modelo 200) | Corporations (sociedades) |
| Quarterly Payments April 20, Oct 20, etc. | Quarterly | Quarterly payments (Modelo 130 for self-employed) | Autónomos, freelancers |
| Annual Summary January 30, 2026 | January 30, 2026 | 2025 annual VAT summary (Modelo 390) | All VAT-registered businesses |
⚠️ Spanish Penalties to Avoid
- Late Filing: 5% + 1% per month (max 20%)
- Late Payment: 5-20% based on delay and cooperation
- Autónomo Payments: Modelo 130 quarterly payments mandatory
- Regional Variations: Some regions (Comunidades) have different wealth tax thresholds
Autónomo Note: Self-employed professionals (autónomos) must make quarterly payments (Modelo 130) even if they have no income during that quarter.
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📚 Related Resources
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