Trouble in Filing a CT600

Does anyone have trouble filing CT600s

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When filing a CT600, accounts and computations, it can take anything up to 50 attempts for HMRC to accept this. Keytime informs me this is a HMRC issue but I would be interested to know if the same problem arises when filing through other software.

Replies (13)

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By acornsouthwest
26th Oct 2023 12:24

It is an HMRC issue. We use BTC and at the end of last month one CT600 took nearly 300 attempts and over 2 hours to process.

Thanks (4)
Intercity
By Mr Hankey
26th Oct 2023 12:25

Yes it's the same for Taxfiler, it's an HMRC issue not a software provider issue.

Delays tend to happen around the last days of the month when the submission load is higher.

Nothing for you to do except leave it, and check back later.

Thanks (1)
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By TAS1234
26th Oct 2023 12:30

No chance of HMRC rectifying this issue then having spent zillions on tax software..?

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Replying to TAS1234:
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By AdamJones82
26th Oct 2023 12:33

They've spent zillions on a system which won't see a launch.

Thanks (1)
Intercity
By Mr Hankey
26th Oct 2023 12:34

By the way, it doesn't take X number of attempts for HMRC to accept it. What actually happens is:

1. Software submits return to HMRC once only

2. It's in a long queue at HMRC's end, and will be processed by HMRC when it reaches its turn in the queue

3. Software continually polls HMRC (several times per minute) asking if it's been processed yet. When the queue is long, the answer will be "no" for several hours, until the answer is eventually "yes"

So it's only actually one submission which will (probably) be accepted, it can just take a while for you to receive the acknowledgement.

Thanks (4)
Replying to Mr Hankey:
Tornado
By Tornado
26th Oct 2023 13:28

Yes, this is what I get too.

TEST - Submit once and wait hours or days until you get an email acknowledgement and then try to get your software to print-off a receipt. (TaxCalc is not able to print-off a Test Transmission receipt.)

LIVE - Submit once and wait hours or days until you get an email acknowledgement and then get your software to print-off a receipt. (TaxCalc will print-off a receipt for the Live submission.)

Something really slow at HMRC.

Thanks (1)
Stepurhan
By stepurhan
26th Oct 2023 15:59

Had the same problem with IRIS. Confirmation of it being submitted is generally instant but many instances of it taking hours to flag as accepted. Definitely seems to be an HMRC issue.

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By gemmalambshead
27th Oct 2023 08:22

Yes, have had same problem. The CT600 that I submitted in September took 1,781 attempts and the one that I submitted in August took 113 attempts, so 50 attempts sounds good.
My next problem is that I am not getting HMRC submission receipts when I file Self Assessment Returns. No submission receipts for the return I submitted on 20th October or for the two that I submitted on the 25th October. It seems that HMRC are aware of this but they haven't told anybody. Is anybody else having same problem?

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Replying to gemmalambshead:
Tornado
By Tornado
27th Oct 2023 08:43

I had the same problem with SA. I asked my ISP to check this out and they confirmed that HMRC were sending the emails but they were getting caught in the ISP Spam Trap. Apparently this was due to HMRC not sending some of their emails in the correct format. There were also some other emails from Government sources, such as Companies House that were trapped.

This was initially fixed by the ISP treating Government emails as exceptions to the rule but in end, they decided to continue trapping emails that score highly as potential spam or malicious but let us check and delete them instead. Any that are still left in the trap after 30 days are automatically deleted forever.

I am shocked at the amount of spam that does get caught that I never saw before, but there are a few genuine emails that still get caught, one of which is the AWEB regular digest, although normal AWEB communications get through OK.

So look in your ISP's spam trap for missing emails or in your own spam trap in your Email Client or browser.

Thanks (1)
Replying to Tornado:
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By gemmalambshead
27th Oct 2023 09:16

Thank you. I have tried looking in spam folders, unfortunately no HMRC emails there. On the Return that I submitted last Friday this is showing as received by HMRC on agent account so I have printed off details from there as proof of receipt.
It looks as though the two submitted on Wednesday are still being processed by HMRC systems but hopefully they will show soon.
It is strange with Spam because it does seem to catch genuine emails and emails that are obviously spam still seem to get through.
I must admit that I don't really know why spam is a problem with legitimate senders. I find that I can send emails to the same person, some get delivered and some don't.

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By OrmeGoat
30th Oct 2023 10:00

https://www.gov.uk/government/publications/corporation-tax-service-avail...

Scroll down to "Delays in receiving return submission responses"

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By Silver Birch Accts
30th Oct 2023 18:23

I use IRIS Keytime and my recent filings have been on the first go. Sometimes the time of day can lead to a backlog. Try filing off peak

Thanks (2)
Morph
By kevinringer
08th Nov 2023 10:41

HMRC has had a problem since August, see https://www.gov.uk/government/publications/corporation-tax-service-avail....

We use PTP and were experiencing delays of 6+ hours towards the end of September. Delays have been up to an hour during October. Delays are shorter when filing off peak.

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