UK Tesla calculator
Tesla Salary Sacrifice Calculator (UK)
Salary sacrifice is the biggest reason UK drivers can afford a Tesla. This tool shows your net monthly cost after income-tax and National Insurance relief, with the low electric-car Benefit-in-Kind tax added back — using published HMRC rates.
Your figures
All figures are editable estimates, checked 2026-07-13. We never present a rate as fixed fact — see our sources.
Result
Estimate only — confirm live figures with Tesla and your suppliers.
How this is worked out
You sacrifice gross salary, so you save income tax + NI at your marginal rates; then you pay a small Benefit-in-Kind tax on the car (list price × BiK% × your tax rate). Net = sacrifice − relief + BiK. EV BiK rates are the published HMRC figures (3% / 4% / 5% for 2025/26–2027/28), checked 2026-07-13. This is guidance, not advice — your scheme's exact terms (early-exit, insurance, tyres) vary. Source: GOV.UK company-car tax.
Questions
How does Tesla salary sacrifice save money in the UK?
You give up gross salary for the car, avoiding income tax and National Insurance on that amount. Electric cars carry a very low Benefit-in-Kind rate (4% in 2026/27), so the tax you pay back is small — the net cost from your payslip is well below a personal lease.
Will the low BiK rate on electric cars last?
Published HMRC rates rise gradually: 3% in 2025/26, 4% in 2026/27 and 5% in 2027/28 — still far below petrol/diesel cars. Always confirm the current year's rate before you commit.