Minimum contribution framework
For workplace pensions, the minimum total contribution is 8% of qualifying earnings, with at least 3% paid by the employer. The remaining 5% comes from the employee's own pay plus tax relief. Qualifying earnings are bounded by lower and upper limits set each April.
The employer element is not a simple percentage of full gross salary. It is calculated on the slice of salary that falls within the qualifying earnings band, unless the pension scheme uses a more generous certification basis. That means a £20,000 salary and a £50,000 salary do not attract proportionally equal pension costs.
In budgeting, pension should always be modelled alongside employer NI because both scale with pay and together move total employer cost materially above the headline salary figure.
Qualifying earnings in practice
For 2026/27, qualifying earnings run from £6,240 to £50,270 per year. Earnings below the lower threshold are excluded from minimum contribution calculations — so a worker on £12,000 per year has pension calculated on £5,760 (£12,000 minus £6,240), not on the full £12,000.
For higher earners above £50,270, only earnings up to the upper limit are included for statutory minimum modelling. An employer contributing the legal minimum on a £70,000 salary pays 3% of £44,030 (£50,270 minus £6,240) — roughly £1,321 per year — not 3% of £70,000. Employers can choose to contribute on full salary as a company policy, but that is a voluntary enhancement above the statutory floor.
Understanding the qualifying earnings band logic matters because it avoids over-estimating pension cost for lower salaries and under-estimating it for mid-range ones. The full employer calculator models this band correctly for any salary you enter.
Enrolment eligibility and timing
Eligible workers are those aged 22 to State Pension Age earning above £10,000 per year from a single employer. They must be enrolled automatically within six weeks of their start date. Workers aged 16–21 or above State Pension Age, or earning between £6,240 and £10,000, have the right to opt into a pension scheme but cannot be enrolled without requesting it.
Employees can opt out within one calendar month of being enrolled. If they do, their contributions are refunded and yours stop. Crucially, employers must re-enrol eligible workers every three years regardless of previous opt-outs — this is a legal duty, not a choice.
Keep records of enrolment dates, opt-out requests and re-enrolment cycles. The Pensions Regulator carries out compliance checks and the fine for failure to re-enrol can run into thousands of pounds per day for larger employers.
Budgeting and communication
Set a standard pension assumption in all hiring plans and make exceptions explicit. Using different pension bases across departments — some on qualifying earnings, some on full salary — makes role cost comparisons misleading. Standardise the basis and note it alongside salary when presenting headcount budgets.
Where you offer above-minimum employer contributions — common at 5% or 10% — publish the policy clearly so managers can explain total package value accurately in job offers. Higher pension contributions are a genuine differentiator in hiring but only when candidates understand them.
Reconcile pension cost forecasts to payroll monthly, especially where salary changes, new starters, opt-outs or opt-ins happen during the year. Pension cost is easy to under-budget mid-year if it is only modelled at the point of hire.
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