🇬🇧 Corporation Tax — Automated

UK Corporation Tax Filing, Computed Automatically

ETaxFlow computes UK Corporation Tax directly from your accounts — the 19% small profits rate, the 25% main rate, and marginal relief in between — ready for your accountant to file.

19% small profits rate 25% main rate Marginal relief calculated No credit card required

Corporation Tax, Tracked All Year

Most businesses only think about Corporation Tax at year end. ETaxFlow tracks your position continuously so there are no surprises.

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Small Profits & Main Rate

19% on profits up to £50,000, 25% above £250,000 — computed automatically as your accounts update.

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Marginal Relief

Profits between £50,000 and £250,000 get the marginal relief taper applied automatically — no manual formula.

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Live Tax Provision

See your estimated Corporation Tax liability update in real time as transactions post, not just at year end.

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Deductible Expense Flagging

Non-deductible items — client entertainment, certain fines — are flagged automatically during posting.

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Capital Allowances Ready

Fixed asset records feed straight into your capital allowances workings, kept separate from accounting depreciation.

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Accountant-Ready Export

Export a clean Corporation Tax workpaper for your accountant to finalise and file the CT600 with HMRC.

How Your Corporation Tax Position Builds

1

Post Transactions

Sales and expenses post to the ledger as normal throughout the year.

2

Adjustments Applied

Non-deductible items and capital allowances are tracked separately.

3

Rate & Relief Computed

19%/25% and marginal relief applied to your taxable profit automatically.

4

Export for Filing

Your accountant finalises and files the CT600 with HMRC.

Corporation Tax — FAQs

19% on profits up to £50,000 (small profits rate), 25% on profits above £250,000 (main rate), with marginal relief tapering the rate between the two thresholds.

Yes. For profits between £50,000 and £250,000, ETaxFlow applies the marginal relief formula automatically so you see the correct effective rate without manual calculation.

ETaxFlow computes the Corporation Tax figures from your accounting records, ready for your accountant to complete and file the CT600 return with HMRC.

Most genuine business expenses are deductible. Client entertainment, most fines and penalties, and certain capital expenditure (handled via capital allowances instead) are treated differently — ETaxFlow flags these categories during posting.

Know Your Corporation Tax Position All Year

No more year-end surprises — track your UK Corporation Tax liability as you go.

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