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Filing calendar & reminders

Overview

OSS returns are due by the end of the month after each calendar quarter: Q1 by 30 April, Q2 by 31 July, Q3 by 31 October, and Q4 by 31 January of the following year. The plugin tracks those deadlines for every quarter in which OSS applied to you.

Which quarters need a return

OSS applies from:

  • 1 January, if you crossed the EUR 10,000 threshold in the previous year;
  • the sale that crosses the threshold, in the year you cross it. Earlier sales that year were subject to your home-country VAT, so the quarters before the crossing need no OSS return;
  • your registration start date, if you set one under Settings → OSS registration start date because you registered voluntarily.

The earliest of these wins. For example, if you cross the threshold on 14 August, Q3 is your first OSS return: Q1 and Q2 are not listed and never trigger reminders.

The dashboard filing section

When OSS applies in the current quarter, or an earlier return is still open, the dashboard shows an OSS filing section listing every quarter that has ended but hasn’t been marked as filed: the quarter, its deadline, and how many days are left (or Overdue). When everything is caught up it shows the deadline for the quarter currently in progress.

Click Mark as filed after you submit a return through your member state’s OSS portal. This records the filing locally (who and when) and stops that quarter’s reminders — it does not submit anything to any tax authority. The section looks back over the last five quarters, so a long-ignored return still shows as overdue.

Email reminders

For each open return you receive at most three reminders, each sent once:

  • 14 days before the deadline,
  • 3 days before the deadline,
  • once it is overdue (in case it slipped through).

Reminders go to the address configured under Settings → Notifications and respect the global email-notifications toggle. If your site was offline on the exact day, the reminder catches up on the next daily check. Marking the return as filed stops the remaining reminders.

With the Pro add-on, each reminder also includes the quarter’s actual figures — how many destination countries, total net sales, and VAT due — plus a direct link to the full quarterly report, so the email itself tells you the size of the filing ahead.

Notes

  • Deadlines are tracked in UTC, matching how the plugin attributes orders to quarters.
  • No reminder is ever sent for a quarter in which OSS did not apply — the section and the emails only exist once OSS filing actually applies to you.