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Can't find last year's submitted CT600 from HMRC online service
I used an external software company to file CT600 to HMRC last Feb, and received HMRC's email confirmation subsequently. However, I am unable to find that filing record in Feb 2025 when I logged on to HMRC online services, as I was trying to download my previous filings before end of March. So far, I didn't receive any letter from HMRC for late filing.
How can I ensure that HMRC already received the CT600 submitted in Feb last year?
How can I ensure that HMRC already received the CT600 submitted in Feb last year?
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To verify HMRC received your CT600:
1. Check with the software provider you used - They should have a record of the submission and the HMRC acknowledgement (IRmark/correlation ID)
2. Contact HMRC directly on 0300 200 3410 (Corporation Tax helpline) - They can confirm whether a CT600 was received for your company. Have your UTR and company details ready.
3. Check your HMRC Business Tax Account - Sometimes filings don't appear immediately in the online portal but are still processed. The absence of a late filing penalty notice is a good sign.
4. Find your original HMRC confirmation email - This contains the submission receipt which proves HMRC received the filing.
If you'd like help filing your next CT600 through TinyTax, we'd be happy to assist - just start a new filing from your dashboard.
Should I proceed to file for this year's return through TinyTax now? Or, should I reconfirm with HMRC first before doing so?
Returns filed through third-party software can take a while to appear in HMRC's online portal - it should show up eventually, but there can be delays.
You're safe to proceed with this year's filing through TinyTax whenever you're ready. Just head to your dashboard and start a new filing for your company.
Can I file an amendment to previous year's filing through Tiny Fax despite this previous filing was done by another provider and not shown up yet on HMRC online services? And then, start a new filing for the current year?
Here's how it works:
1. Start a new filing in TinyTax for the same accounting period as last year's return
2. Enter the corrected figures
3. When you submit, HMRC will return an "original already received" message — this is expected
4. TinyTax will then give you the option to submit it as an amended return
5. HMRC will process the amendment and you'll receive a new acknowledgement
Just one thing to note — if the mistakes also affect your Companies House accounts, those can only be amended through the same software that originally filed them (or by paper). So you'd need to contact your previous provider for that, or file paper amendments directly with Companies House.
Once the amendment is done, you can start a fresh filing for the current year straight away — no need to wait.
In the previous provider's system, I had put down numbers for (1) Losses brought forward, (2) Losses arising in the period and (3) Losses carried forward accordingly. In the resulting CT600, Box 780 shows Losses arising in the period (2), while Box 805 is left empty.
This is quite different in Tiny Tax's resulting CT600 as in my case for this year -- Box 780 is left empty; while Box 805 shows Losses carried forward (3), which is the total of (1) and (2).
Is there any difference in these two ways of completing CT600 particularly for Box 805? Of course, I would like to carry forward all previous years losses. Do you think I should send an amendment to my previous year's filing via Tiny Tax system?
Box 780 is specifically for trading losses — that is, losses from a business's normal commercial trading activity. Box 805 is for UK property business losses carried forward.
Since CAKECHAT INVESTMENT LIMITED is a property investment company (not a trading business), TinyTax correctly puts your losses in Box 805 rather than Box 780. Your previous provider appears to have classified the property loss as a trading loss in Box 780, which isn't technically correct for a property company — though HMRC likely still accepted it.
The good news is that your losses are being carried forward either way. Whether you need to amend the previous year depends on whether you want HMRC's records to reflect the correct classification. In practice, if the total amounts were right and HMRC accepted the return, it's unlikely to cause an issue. But if you'd prefer the previous year's return to match the correct box treatment, you're welcome to file an amendment through TinyTax.
For this year's return, everything looks correct as it is — just go ahead and submit when you're ready.
**On the amendment:** If the figures themselves are correct (and it sounds like they are — the only difference was which box the losses appeared in), there's no need to file an amendment. Your HMRC acknowledgement email with the IRmark is definitive proof the return was received and processed. You can go ahead and file this year's return without waiting.
**On the HMRC online delay:** After a full year, it is unusual for the return not to show up. HMRC's online portal can be unreliable for displaying returns filed through third-party software, but a year is a long time. If it's bothering you, call the Corporation Tax helpline on 0300 200 3410 and quote your IRmark — they can confirm the return is on file. But this shouldn't hold up your current year filing.
**On pricing:** TinyTax doesn't offer free filing — all submissions require a paid plan. The £40 you saw is our Solo plan (one company, one year). There isn't a free tier for micro-entities or any other company type.