Key corporate tax, withholding tax, and transfer pricing filing deadlines across major jurisdictions. Filter by country, month, or tax type.
International tax compliance requires careful attention to filing deadlines, documentation requirements, and regulatory timelines across multiple jurisdictions. This comprehensive 2026 tax calendar covers key dates for corporate income tax filings, withholding tax returns, transfer pricing documentation, BEPS reporting, and other cross-border tax obligations.
Filter the calendar by country, tax type, or month to focus on deadlines relevant to your business. Missing international tax deadlines can result in penalties, interest charges, and loss of treaty benefits. Always verify specific dates with local tax authorities and consult your tax advisor to ensure timely compliance with all applicable deadlines.
WHT deadline coming up? Calculate the exact withholding amount for your next cross-border payment, or check if a treaty reduces your rate.
Managing tax compliance across multiple jurisdictions is one of the most challenging aspects of international taxation. Each country has its own filing deadlines for corporate income tax returns, withholding tax remittances, transfer pricing documentation, VAT/GST returns, and Country-by-Country Reports (CbCR). Missing a single deadline can trigger automatic penalties, interest charges, and in some cases the loss of treaty benefits or safe harbor protections. For multinational enterprises operating across dozens of jurisdictions, the volume of deadlines can be overwhelming.
Penalty regimes vary significantly by country. In the United States, late filing of a corporate tax return incurs a penalty of 5% of unpaid tax per month (up to 25%), plus interest. In the UK, late filing penalties start at a fixed amount and escalate to daily penalties after three months. Germany imposes a surcharge of 0.25% of the assessed tax per month of delay. For transfer pricing documentation, some jurisdictions shift the burden of proof to the taxpayer if documentation is not prepared on time, making it significantly harder to defend intercompany pricing in an audit.
Our tax calendar tool helps you track key compliance deadlines across the jurisdictions covered by our platform. Filter by country, tax type, and time period to generate a consolidated view of upcoming obligations. We recommend building in a buffer of at least two weeks before each statutory deadline to allow for review, approvals, and any unexpected issues that may arise during preparation.
Withholding tax remittance is one of the most time-sensitive compliance obligations — use our WHT Calculator to estimate amounts due and our WHT Refund Guide for instructions on claiming treaty relief. For transfer pricing compliance, our Transfer Pricing Methods guide covers the documentation requirements in detail. Companies subject to the global minimum tax should review our BEPS Pillar Two Guide for the additional filing obligations introduced by the GloBE rules.