Compliance Calendars, Reports and Portals

Compliance is mostly about dates and offices: which filing is due, to whom, through which portal, and what happens if it is late. When you operate in more than one country, the calendars overlap and the same event (a year-end, a foreign account, a payroll) triggers different filings in each place.

Start with the calendar for the country you need, then use the comparison guides to see how the three systems line up: annual business reports, beneficial ownership registers, foreign asset reporting, payroll and indirect tax filings, record-keeping periods, e-filing portals, extensions, amended returns and assessment time limits. Dates shown here were checked against official sources for the stated year; always confirm against the official page before relying on a deadline.

For help with a missed filing, see notices, penalties and disputes. For definitions of the forms and terms, see the glossary.