Prices the zero-rated disabled-relief sales you cannot prove, before an HMRC officer does
Orders with no declaration, inside the window
—
orders
Years HMRC can still assess
—
years
Net sales value at risk
—
GBP
VAT HMRC can assess
—
GBP
Inaccuracy penalty
—
GBP
Late-payment interest
—
GBP
Total exposure
—
GBP
Cost of one missing declaration
—
GBP
Take this working with you. CSV export of every input and every line above for your accountant or an HMRC disclosure, plus a recheck reminder before your next VAT return. $60 once · one licence key per person or team seat · The average UK VAT consultant is paid GBP 22 an hour (Glassdoor, March 2026) and a practice bills that time out at several times the rate.
Missing-declaration exposure Turns a count of zero-rated orders and the share with no signed eligibility declaration into the VAT, penalty and interest one HMRC assessment would carry.
4-year assessment window Scales the order count down to the four years HMRC can still assess under s.77 VATA 1994, so a six-year sales history is not priced as if all of it were at risk.
Schedule 24 penalty band Applies the inaccuracy penalty band you pick - careless unprompted, careless prompted or deliberate prompted - to the VAT rather than to the sale value.
Late-payment interest clock Adds simple interest at the HMRC rate for the months since the affected return was due; the rate has been Bank of England base plus 4% since 6 April 2025.
CSV export of the working Writes every input and every line of the calculation to a .csv you can hand to your accountant or attach to a disclosure. Needs the $60 key.
Quarter-end recheck reminder Sets a reminder to re-run the check before the next VAT return is filed, so the gap is found by you and not at inspection. Needs the $60 key.