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I am not sure if CT 600 for 20/02/2024-28/02/2025 was submitted to HMRC
I submited the accounts and I noticed the CT600 figured as not submited , so I tried to submited again and the mark is X so I am not sure if is submited or not; could you please tell me if is already submited
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Accounts Submission
✅ Accepted
Your accounts were successfully submitted to Companies House and accepted on 11 November 2025. This part is complete.
CT600 Submissions
❌ Rejected by HMRC (18 November 2025)
Because your accounting period was longer than 12 months (20/02/2024 to 28/02/2025), HMRC requires it to be split into two separate CT600 returns:
Period 1: 20/02/2024 → 19/02/2025
Period 2: 20/02/2025 → 28/02/2025
Both submissions were rejected with the error:
"Original return already received for this period."
What This Means
HMRC’s system is indicating that CT600 returns have already been filed for these periods. However, our records show that these were the first and only CT600 submissions attempted through TinyTax for your company.
What You Should Do
Check with anyone who may have access to your HMRC Government Gateway account — e.g., an accountant or bookkeeper — to confirm whether they may already have filed these CT600s using other software or directly with HMRC.
If you are certain no one else has filed anything, please contact HMRC on 0300 200 3410 to clarify the status of your CT600 returns.
You could also log into to HMRC to verify your corporation tax position.
Let me know how you get on and if you need further help.