Share Incentive Plan Calculator

Use this free share incentive plan calculator to estimate the tax and National Insurance saved by UK Share Incentive Plan partnership shares.

How the share incentive plan calculator works

Partnership shares come from pre-tax pay, up to £1,800 a year (or 10% of salary if lower). The saving is the contribution × (income tax rate + NI rate).

Frequently asked questions

What is a share incentive plan?

A UK scheme that lets employees buy company shares from pre-tax salary, with tax relief if held for the required period.

Results are estimates for general information only. They are not a substitute for professional advice where applicable. Found a mistake? Report an error.