UK Corporation Tax & VAT
Practice real tax
returns until they're
second nature.
Fill in a working CT600 computation or a VAT return with your own figures. Get instant box-by-box validation, post-it hints when you're stuck, and the full worked solution alongside.
✓ FY2024 rates
✓ Marginal relief
✓ VAT partial exemption
✓ No sign-up
CT600 · trading profit
Turnover
✓480,000
Add back: depreciation
✓12,000
Client entertaining
!2,400
Trading profit
£70,300
Add depreciation back — claim capital allowances instead!
Main rate 25% for FY2024.
Built to teach, not just test
Instant validation
Every box turns green when it's right and pink when it's not — the moment you type it.
Hints on demand
Stuck on a box? Peel a post-it for a plain-English nudge — no spoilers unless you ask.
Worked solutions
See the full computation line by line, with the rule behind every adjustment.
Your own figures
Type any company's numbers — or generate a fresh scenario — and practise on what's real to you.
Pick a return to drill
Corporation Tax
CT600 return
Build the full computation: trading profit, add-backs, capital allowances, then tax at the right rate with marginal relief.
Tax-adjusted trading profit
Disallowables & capital allowances
Marginal relief & the 19–25% bands
Value Added Tax
VAT return
Complete the key VAT boxes: output and input tax, net VAT due, and the totals that feed the rest of the return.
Boxes 1, 4 & 5 with live totals
Standard & zero rates
Payable vs. reclaimable
Income Tax
Self Assessment
Compute an individual's income tax: total income, the personal allowance and its taper, then the 20/40/45% bands.
Employment, self-employment & property
Personal allowance taper over £100k
Basic, higher & additional rate bands
How it works
01
Choose a return
CT600, VAT or Self Assessment — pick a ready scenario or enter your own figures.
02
Fill the boxes
Work down the form. Validation and hints react as you go — no waiting to the end.
03
Check & learn
Compare against the worked solution and the rule behind every line, then go again.
Ready when you are.
No account, no install. Open a return and start typing.
