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Challenge the maths

Think a number is wrong? Prove it.

The benchmark isn't our word — it's TAJ's own published figures. Brawta is built on TAJ's published rates and locked against TAJ's own worked examples in automated tests, so a challenge is settled against the official figures, not anyone's opinion. We'd rather you stress-test it than trust it blindly: find a real error against TAJ's published figures or the official forms and we'll fix it fast and put your name to it. This is a recognition programme, not a paid one — but a payroll engine the whole island can trust is worth your time.

See exactly which TAJ worked examples Brawta is tested against →

What to attack

PAYE (periodic and cumulative), the NIS ceiling, NHT, Education Tax and HEART; gross-to-net edge cases; and whether the S01, S02 and P45 carry the right figures into the right boxes. Pension, statutory income, mid-year starters and leavers — break it however you can.

What you get

A confirmed, original find earns a spot in our Contributors' Hall of Fame, a written credit in the release notes that ship the fix, and — for a material maths or compliance bug — a free year or upgrade on the house. Honest recognition for honest work.

The rules (keep it fair)

Show your working: the inputs, what Brawta produced, and what TAJ's rates say it should be — with the official reference. First clear report of an issue wins it. Please report privately (below), don't test against anyone's real staff data, and give us a reasonable window to fix before going public.

Verified contributors are listed here once their find ships in an update.

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