Two separate dates
A Company Tax Return is normally due 12 months after the accounting period ends, while Corporation Tax is usually payable nine months and one day after that period ends. This means the tax may be due before the return filing deadline.
Planning only for the CT600 date can create a cashflow surprise.
Estimate early
Management figures or well-maintained bookkeeping can provide an early indication of taxable profit. The final tax computation may differ from the accounts because tax adjustments are applied, but an early estimate is still useful for budgeting.
Move estimated tax into a separate savings account rather than relying on the balance left at the payment date.
Keep evidence for adjustments
Asset purchases, entertaining, private costs, director transactions, losses, finance costs and claims may need separate treatment. Keep invoices and explanations so the tax computation can be prepared efficiently.
A clean year-end pack reduces follow-up questions and helps the return match the accounts.
A practical next step
Set three dates: records complete, tax estimate reviewed and payment authorised. Then set a later date for final return approval and filing.
Accountants4All can prepare the accounts and tax computation, explain the adjustments and keep the payment and filing dates visible.
Official guidance
Rules and deadlines can change. Check the current official guidance and obtain advice for your circumstances.
GOV.UK: Company Tax ReturnsNeed a clear next step?
Talk through the records, deadline or setup involved.
This article provides general information and is not personal tax, legal or financial advice.