This calendar lists every deadline that applies to a company in the EU in 2028: national tax and reporting duties alongside EU-wide regulations - such as the AI Act, NIS2 and the Cyber Resilience Act - that apply across the whole EU.
Recurring obligations - monthly VAT returns, quarterly filings, annual reports - are expanded into their individual due dates for the year using the rule shown on each deadline's own page. This calendar does not shift dates that fall on a weekend or public holiday; always check the linked official source for the exact filing deadline.
Data last verified 1 October 2026. See the source cited on each deadline
| Date | Where | Regulation | Deadline |
|---|---|---|---|
| EU-wide | CSRD | CSRD after Omnibus I: sustainability reporting only for 1,000+ employee companies from FY2027; SMEs out of scope with VSME value-chain cap |
The Omnibus I package cut CSRD scope to companies with more than 1,000 employees and over €450M turnover; listed SMEs are removed entirely. Large customers may not demand more sustainability data from suppliers below 1,000 employees than the voluntary VSME standard. In-scope companies report for financial year 2027 in 2028.
Details →| Date | Where | Regulation | Deadline |
|---|---|---|---|
| EU-wide | ViDA | ViDA: platform deemed-supplier rules for short-term rentals and passenger transport; single VAT registration |
Platforms facilitating short-term accommodation rentals (up to 30 nights) and passenger transport become the deemed VAT supplier when the underlying host or driver does not charge VAT. The One-Stop-Shop is extended (own-goods transfers, B2C supplies) and a mandatory reverse charge for non-established suppliers reduces the need for foreign VAT registrations.
Details →| Date | Where | Regulation | Deadline |
|---|---|---|---|
| EU-wide | EU AI Act | AI Act: high-risk rules for AI embedded in regulated products (machinery, medical devices, toys, lifts) |
AI that is a safety component of products covered by EU product legislation listed in Annex I (machinery, medical devices, toys, lifts, vehicles, etc.) must meet the AI Act's high-risk requirements as part of the product's CE conformity assessment.
Details →Both. It combines every national deadline for this country with EU-wide regulations - such as the AI Act or NIS2 - that apply to companies here regardless of country.
Each recurring obligation (a monthly VAT return, a quarterly filing) is expanded into its actual due date for every month, quarter or year it applies, using the recurrence rule published on its own deadline page.
Every entry links to its official source and shows a last-verified date. Dates can move, so always confirm against the official source before relying on one.