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Having trouble filing multiple CT600
Hi team,
I'm doing my first company tax return for the period of April 12, 2024 to April 30, 2025, which means I need two CT600. However, I don't understand how to do this in the platform.
When I select "CT600 only", it still shows the Balance Sheet section, but I only need to do the latter once for the accounts. And likewise, if I select "Accounts Only", it still shows the Profit & Loss section.
There doesn't seem anyway to do these individually.
Kind regards
I'm doing my first company tax return for the period of April 12, 2024 to April 30, 2025, which means I need two CT600. However, I don't understand how to do this in the platform.
When I select "CT600 only", it still shows the Balance Sheet section, but I only need to do the latter once for the accounts. And likewise, if I select "Accounts Only", it still shows the Profit & Loss section.
There doesn't seem anyway to do these individually.
Kind regards
2 Comments
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Thanks for getting in touch! Great question — let me explain how this works.
Why you need two CT600s
HMRC doesn't allow corporation tax returns for periods longer than 12 months. Since your period runs from 12 April 2024 to 30 April 2025 (about 12.5 months), it needs to be split into:
Period 1: 12 April 2024 → 11 April 2025 (12 months)
Period 2: 12 April 2025 → 30 April 2025 (19 days)
How TinyTax handles this
The good news is TinyTax handles this automatically. You only need to enter your figures once for the full period, and the system will:
Detect that your period exceeds 12 months
Apportion your profits between the two periods
Generate two separate CT600 submissions to HMRC
Generate one set of Accounts for Companies House (covering the full period)
Why you see Balance Sheet / P&L on both options
The Balance Sheet and P&L sections aren't just for the Accounts filing — they're needed to calculate your CT600 values too. Corporation tax is based on your profits, which come from your P&L. So even when filing “CT600 only”, we need those figures to compute the correct tax.
What to do
Simply fill in the form with your full-period figures (12 April 2024 to 30 April 2025). When you reach the preview stage, TinyTax will show you how the period has been split and what will be submitted to HMRC and Companies House.
If you have any questions as you go through, just let us know!
Kind regards,
TinyTax Support
Thanks for your reply, this is very helpful!
Understood regarding the balance sheet and P&L on both options, that makes sense.
Regarding what you mention about filling in one form and TinyTax will apportion between the two periods - I did do this first, but I had a query around this; I don't want TinyTax to apportion between the two periods, as I have separate expenses, turnover, etc for the two. Do I not need to specify these separate amounts in the specific periods, or is it okay for HMRC if it's apportioned?
Thanks again for your help.
Kind regards,
Jonathan