§ Calculator
EV salary sacrifice, in real money.
The figure your scheme quotes is gross. The figure you actually feel is net, after income tax saved, NI saved, and the BiK charge added back. Edit the numbers, see your real monthly cost — and the trajectory across the whole term.
Net monthly cost (year 1)
£489
£508 averaged across the 36-month term · 31% effective discount vs equivalent cash cost
01
Your car
Manufacturer list price including VAT and options, minus first-year VED. Used to calculate the Benefit-in-Kind charge.
02
Your scheme
The figure your employer quotes — what comes off your salary before tax. Net is what you actually feel.
03
Your tax bracket
04
Your term
—
The maths
| Gross monthly (off your salary) | £740 |
| Income tax saved (40%) | −£296 |
| Employee NI saved (2%) | −£15 |
| BiK charge added back | +£59 |
| Net monthly (year 1) | £489 |
—
BiK trajectory across the term
| Tax year | BiK rate | BiK / mo | Net / mo |
|---|---|---|---|
| 2026/27 | 4% | £59 | £489 |
| 2027/28 | 5% | £74 | £503 |
| 2028/29 | 7% | £104 | £533 |
Excluded from this calculator
- Scheme admin fees (some providers charge 1–4% on top of the quoted gross).
- Outright-purchase comparison — depends on car price, loan rate, deposit, resale assumption.
- Optional extras (insurance bundling, breakdown cover, tyre replacement) often included in the gross.
- Early-termination charges if you leave employment mid-term.
All four are modelled per-buyer in Section 9 of the full buyer report.
Background reading
The full walk-through of BiK, NI, and how the maths actually plays out is in BIK and salary sacrifice in 2026/27.