What Does a Disabled Period Mean? | TinyTax Support

What Does a Disabled Period Mean?

A period showing as disabled in TinyTax means the filing for that period has already been completed. This is expected behaviour — it prevents accidental duplicate submissions.

Why Does a Period Show as Disabled?

A filing period becomes disabled when:

  • Your CT600 has been successfully submitted and accepted by HMRC for that period
  • Your accounts have been submitted to Companies House for that period
-- The period has been marked as filed elsewhere (e.g. you submitted through another service and marked it as such in TinyTax)

Once a period is disabled, the submission button on the preview page will show as greyed out and inactive.

What Does "Submission Disabled for This Period" Mean?

This message appears on the preview page when TinyTax detects that a CT600 has already been filed for the period. It is a safeguard — not an error.

✓ If your filing was accepted, HMRC has received it and your obligation for that period is fulfilled.

Does This Mean HMRC Did Not Receive My Filing?

No. A disabled period means the opposite — the filing was completed. HMRC will have received your CT600 and processed it.

You can confirm your filing was accepted by:

  1. Checking your TinyTax dashboard — accepted filings show a green
    Accepted
    badge
  2. Logging in to your HMRC Government Gateway account and checking your Corporation Tax filing history

What If I Need to Amend a Disabled Period?

If you need to correct figures after a period has been filed, you can submit an amendment via your dashboard:

  1. Go to your dashboard
  2. Find the company and period
  3. Click the Actions menu (⋾) next to the period
  4. Select Amend CT600
ℹ Amendments are submitted to HMRC as a revised CT600. You only need to change the figures that were incorrect -- TinyTax will handle the amendment submission.

Common Questions

"The period shows as disabled but I am not sure the filing went through"

Check your dashboard for a confirmation reference number next to the period. If you see an

Accepted
status and a HMRC correlation ID, the filing was received and accepted.

If the status shows as pending or you see no reference number, contact support and we can check the submission logs for you.

"I accidentally filed the wrong figures -- can I refile?"

Yous. Use the Amend CT600 option from the dashboard Actions menu. This submits a corrected return to HMRC. There is no penalty for amending a return that was filed with incorrect figures.

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