corporation tax and tax return filing deadlines

confusing corporation tax and company tax return filing deadlines for private limited company

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I hope someone with knowledge can help me with two confusing deadlines as even HMRC staff couldn’t answer my question. Many thanks in advance!

The deadline for paying corporation tax is 9 months and 1 day after accounting period ends but the deadline for filing a company tax return is 12 months after accounting period ends. Surely without filing a tax return you wouldn’t know how much corporation tax to pay in the first place, so what is the point for having a longer deadline for filing tax return? Wouldn’t it make more sense that the two deadlines are the other way around or at least to be equal. Am I missing something here?

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paddle steamer
By DJKL
08th Jan 2020 00:33

You can of course calculate the tax before lodging.

I compute our CT in excel when I prepare the accounts, I then later use tax software to compute liability before lodging, I can then check the two marry up- in effect the manual calc is a check on my use of the software as if they do not agree I check the difference.

Remember you also have the accounts filing deadline for Companies House and to prepare the accounts for these you need to have provided the tax within same.

So my order is do accounts workings , prepare tax comp, journal tax figures into ETB, prepare stat accounts from ETB, import final stat accounts into tax software (taxcalc) and adjust these in same, produce CT600, check that figure to the earlier tax comp prepared as a final check pre submission.

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By Accountant A
08th Jan 2020 01:15

Katie2018 wrote:

Am I missing something here?

Yes. An accounting qualification.

In response to your unasked question: yes, you do need to engage an accountant.

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Replying to Accountant A:
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By SimonP
31st Jan 2021 23:34

Rude. Rude. Rude.

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Replying to SimonP:
RLI
By lionofludesch
01st Feb 2021 06:35

SimonP wrote:

Rude. Rude. Rude.


You've reopened a year old thread just to post that ???

You're a bit late to the party.

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By Tax Dragon
08th Jan 2020 05:53

Strange how two such different answers can both be right.

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Psycho
By Wilson Philips
08th Jan 2020 06:46

“ Surely without filing a tax return you wouldn’t know how much corporation tax to pay in the first place”

Wrong way round. You can’t file the return until you know what the liability is. As to why the time limits are different, I don’t know and don’t care - personally, I don’t find it confusing at all.

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Replying to Wilson Philips:
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By Katie2018
08th Jan 2020 08:29

yes, you can calculate your corporation tax liability using excel or accounting software but my point is that the final official figure will only be available after filing the company tax return with HMRC, so surely it would make sense to file the tax return first before paying your corporation tax.

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Replying to Katie2018:
Psycho
By Wilson Philips
08th Jan 2020 09:21

Wrong. It’s the company’s responsibility to self-assess its tax liability, which is then reported to HMRC on the return. What appears on HMRC’s record is not ‘official’ confirmation of the tax liability, merely a reflection of what the company has submitted.

There is of course nothing to prevent you from filing the return first and paying later if you feel so inclined.

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By SXGuy
08th Jan 2020 06:54

Considering Corp tax is a percentage of net profit it doesn't take a maths genius to work out the tax bill before filing a return. Forgetting the fact for a second it's not the return that actually calculates the tax figure but your actual accounts which you would have already completed regardless of when you file your tax return. Unless you love to leave things to the 11th hour then I can see how confusing it might be for you.

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By paulwakefield1
08th Jan 2020 08:17

It seems a perfectly fair question to me. It has always struck me as odd given the filing deadline for the accounts is 9 months and the CT payment deadline is 9 months, why would the return deadline be 12 months?

Apart from "that's what the legislation says", any ideas as to how it evolved that way?

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Replying to paulwakefield1:
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By Wanderer
08th Jan 2020 09:18

paulwakefield1 wrote:

Apart from "that's what the legislation says", any ideas as to how it evolved that way?

For a short period before it was called CTSA it was called 'Pay & File'.
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Replying to paulwakefield1:
RLI
By lionofludesch
08th Jan 2020 09:25

paulwakefield1 wrote:

It seems a perfectly fair question to me. It has always struck me as odd given the filing deadline for the accounts is 9 months and the CT payment deadline is 9 months, why would the return deadline be 12 months?

You can calculate the Corporation Tax well before the due date and, indeed, you need to do that in order to file the accounts.

However, how can you calculate the s455 charge before the nine months is up ?

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Replying to lionofludesch:
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By paulwakefield1
08th Jan 2020 09:50

Good point so that gives 3 months to compute and file. But, IIRC, the S455 charge is also payable 9 months + 1 day after the end of the period so there still seems to be a mismatch.

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Replying to paulwakefield1:
RLI
By lionofludesch
08th Jan 2020 10:40

Well, Companies House want your accounts after nine months, which is plenty. I don't see why that should be extended.

HMRC want their money after 9 months and a day, I don't see why they should wait longer. I can't remember it being anything else.

Then they give you three months to fill in your return and justify your payment. No problem.

The obvious alternative is to cut the s455 time down from nine months to six. Or none. Then we all suffer just to suit disorganised folk who can't cope with two deadlines.

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By bernard michael
08th Jan 2020 10:11

It may be the rule but I've never known HMRC penalise anyone for not complying with the 9 month & 1 day rule

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Replying to bernard michael:
ALISK
By atleastisoundknowledgable...
08th Jan 2020 10:26

bernard michael wrote:

It may be the rule but I've never known HMRC penalise anyone for not complying with the 9 month & 1 day rule

Really? You’ve never had a client be charged fines & interest for late payment of their CT?

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Replying to bernard michael:
RLI
By lionofludesch
08th Jan 2020 10:42

bernard michael wrote:

It may be the rule but I've never known HMRC penalise anyone for not complying with the 9 month & 1 day rule

That's the day interest starts to run. Penalties are for late returns.

Bit like Income Tax Self Assessment.

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Replying to lionofludesch:
Psycho
By Wilson Philips
08th Jan 2020 11:14

But only a bit, given that there are surcharges for late payment.

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Replying to Wilson Philips:
RLI
By lionofludesch
08th Jan 2020 11:24

Coming to your company soon .......

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By bernard michael
08th Jan 2020 10:33

Strangely no fines interest yes

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Replying to bernard michael:
Psycho
By Wilson Philips
08th Jan 2020 11:10

Why "strangely"? At present, there are no fines for late payment of CT, except for payment by instalments and even then only in certian circumstances. Having said that, late payment penalties are on the horizon.

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By tom123
08th Jan 2020 10:43

In a previous larger corporate job, our stat accounts were done by KPMG, (typically around 9 months), including a provision.

After filing etc, the tax work was done for us by Deloitte, within the further 3 month timeframe.

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By Tax Dragon
08th Jan 2020 11:08
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By Accountant A
08th Jan 2020 11:25

Don't tell Katie that large companies pay half their corporation tax during the year in question. It'll blow her mind!

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By whitevanman
08th Jan 2020 17:12

I think, to some extent, no-one knows!
Pre 1993 (indeed since CT was introduced, I believe) CT was due on the later of;
9 months after the end of the period assessed, or;
30 days after the date of the assessment.
The 9 months was to coincide with the date by which accounts were filed at CH.
No-one ever really bothered with CT returns. HMRC was only concerned to get the accounts and computations so that appeals etc could be finalised ( and that often took years!).
Then came CTPF (CT Pray and Fail as we came to know it).
This was the testing ground for the whole of SA.and introduced the idea of working out the tax due, paying it by the due date and filing a return. It was a bit of a half-way house between the old system and full SA.
Generally, the same due date for payment was kept (pre 1993, 9 months and 1 day was allowed by concession) and the filing date was fixed in line with what they intended for a SA system, that is to say allowing a slightly longer time than for payment.
I think they did not impose penalties for late payment because they were relying on companies to pave the way for the wider SA for everyone (and they never had them pre-1993).
When SA for individuals etc was introduced in 1997 they felt differently about it! However, there was no rush to change to CTSA because, generally speaking CTPF worked. When they finally brought in CTSA, very little actually changed and I suspect it was not felt worthwhile pushing for a late payment penalty system ( not least because the existing computer system would have been unable to cope).
The one other area was S455 (as is).
Previously, the tax was due when assessed. I think the strict due date was 14 days after the end of the AP in which the loan was made and repayment was due when the loan was repaid. The main thing affected was interest and due dates broadly followed this except that, at the time, HMRC paid an interest supplement on repayments (same as repayment interest) but that was only due after about 12 months.
When they brought in CTSA they wanted to get S455 dealt with in the return etc so they changed things round and the current rules were introduced. The most significant change was the due date for payment of the tax and the effective date for repayment. Both were set to fall in with the SA timing. So, tax due 9 months and 1 day after end of AP in which loan made and relief for repayment due only 9 months and 1 day after the end of the AP in which repayment made. The obvious exception made was for loans repaid within 9 months of the end of the AP in which advanced, where no tax is payable.
One can probably be forgiven for thinking it is all a bit confusing but if you lived through it, it all seems fairly obvious!
Back to sleep now!

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Replying to whitevanman:
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By Wanderer
08th Jan 2020 17:20

whitevanman wrote:

The 9 months was to coincide with the date by which accounts were filed at CH.

No it wasn't, back then it was 10 months for a private company to file at CH.
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Replying to Wanderer:
paddle steamer
By DJKL
09th Jan 2020 13:53

And we should all remember the timing joys of ACT payments and the quarterly CT61s these required. What is now strange is I can still vaguely remember 1980s processes re tax but keep forgetting the names of my nieces' and nephews' children.

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Replying to DJKL:
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By Wanderer
08th Jan 2020 17:53

Absolutely, on all points!
Unfortunately still have to do one or two CT61s for interest payments. About time they were paid gross.

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Replying to DJKL:
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By whitevanman
08th Jan 2020 19:20

I struggle to remember my daughters name and she is my only child!

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Replying to whitevanman:
paddle steamer
By DJKL
09th Jan 2020 13:53

My late father's complaint.

I have three sisters and he would muddle their names up all the time, so something he would tell me about one would turn out to be about another. He had no such excuse in my case, my being his only son, so made up for that by addressing me using the name of one of my cousins instead.

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Replying to Wanderer:
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By whitevanman
08th Jan 2020 19:18

And for Public companies I believe it was 7 months. Compromises have to be made!

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