Invoices → VAT portal submits issued invoices to the tax authority. It is a batch screen: you select invoices, submit them together, and read a result per invoice.
The list
The screen opens filtered to invoices not yet submitted — the work still to do. Each row shows the invoice and, once submitted, its submitted to VAT date.
Filters available:
| Filter | Use |
|---|---|
| Already submitted | Switch to reviewing what has gone rather than what is pending. |
| From date / To date | Bound the submission date range when reviewing history. |
Submitting
- Tick the invoices to include. A running count shows how many are selected.
- Submit to VAT Portal.
- Read the result dialog.
The submit button is disabled when nothing is selected, and when you are viewing already-submitted invoices — you cannot submit the same invoice twice from this screen.
Reading the result
Submission is per invoice, so a batch can partly succeed. The result dialog reports what went through and what did not.
The useful behaviour: after a partial failure, the selection is reset to just the failures. You can correct the underlying problem and resubmit exactly those invoices without picking them out again. After a clean run the selection is cleared entirely.
Do not close the dialog without reading it. A batch of forty that reports thirty-eight successes looks like a success at a glance, and the two failures are the ones that matter.
What a failure usually means
Rejections normally come from the invoice's own data rather than the submission itself:
- Missing or invalid tax registration on the billing company. See Companies.
- A tax group that does not match what the authority expects for that line.
- Rounding — where the invoice type has ceil total amount set and the resulting total does not reconcile against the line values. See Invoice types.
- A line with no billing code, or a code the authority does not recognise.
Fix the cause on the invoice or the company, then resubmit.
After submission
A submitted invoice records a VAT reference number and a submitted at timestamp.
An invoice with a VAT reference has been reported to the tax authority. From that point it must not be corrected by editing. Any reduction is made by credit note, and the credit note is itself submitted to the portal — see Credit notes.
Working practice
- Submit on a regular cycle rather than in an end-of-period rush. Failures need investigating, and investigation takes longer than submission.
- Submit in reasonable batches. A batch of several hundred makes the result dialog hard to work through.
- Clear the failures before the next run. Failed invoices stay in the unsubmitted list, and a growing backlog there is the earliest visible sign of a data problem upstream.
Last updated 9 September 2026