ReturnDeck isn't a quiz that grades you at the end. It's a live working return that reacts as you type, explains itself, and lets you try again until the method sticks.
Choose CT600 or VAT, then start from a ready-made company case or type in your own figures from a real set of accounts. Nothing to install, no account needed.
As you type, each box checks itself. Totals like trading profit or net VAT due recalculate live, so you always see where a number lands.
Every box has a hint behind it, written in plain English. Open one for a nudge on the rule — depreciation add-backs, disallowables, the personal allowance taper — without giving away the figure.
Reveal the full computation line by line, with the rule behind each adjustment. Reset the figures, change the scenario, and repeat until the method is automatic.