When Must a UK Employer Pay Statutory Sick Pay, and How Is It Handled in Payroll?

## The short answer

A UK employer must pay Statutory Sick Pay (SSP) to a qualifying employee who is off work sick for a continuous period, once the initial waiting days have passed. SSP is a legal minimum, paid through payroll in the same way as normal wages, and is subject to PAYE tax and National Insurance. To qualify, an employee generally needs to be classed as an employee earning above the lower earnings threshold and to have been sick for the required number of consecutive days. The employer pays SSP directly; it is not reclaimed from HMRC under the normal rules.

## Who qualifies for SSP

The core eligibility conditions are:

- The individual is an **employee** and has done some work under their contract

- Average weekly earnings are at or above the **lower earnings limit** for National Insurance

- They have been off sick for a continuous **period of incapacity for work** lasting at least the minimum number of consecutive days

- They have notified sickness in line with the employer's rules (or the statutory default if none exists)

Notably, SSP can apply from day one of employment; there is no minimum length of service. Some workers are excluded, such as those already receiving certain other statutory payments.

## Waiting days and qualifying days

Two concepts often confuse employers:

- **Qualifying days** are the days an employee would normally have worked. SSP is only due for qualifying days.

- **Waiting days** are the first few qualifying days of a sickness absence, for which SSP is not paid. SSP becomes payable only from the day after the waiting days are served.

Where absences are close together, they can sometimes be "linked" and treated as a single period, which affects whether waiting days need to be served again. Getting linking right matters because it changes the date SSP starts.

## How long SSP lasts

SSP is payable for a capped maximum number of weeks within a period of sickness. Once that maximum is reached, the entitlement ends, and the employee may need to be signposted to other support. Payroll needs to track cumulative SSP weeks per employee across linked periods so it stops at the correct point.

## Evidence and notification

Employers can ask employees to **self-certify** for short absences and to provide a fit note (statement of fitness for work) for longer ones. You can set reasonable rules about how and when sickness must be reported, but you cannot require evidence for the very first days of absence. A clear, written sickness policy protects both sides and feeds the data payroll needs to calculate SSP correctly.

## How SSP appears in payroll

In the pay run, SSP is treated as earnings:

- It is added to taxable pay and run through PAYE and National Insurance

- It appears on the payslip, ideally itemised so the employee can see it

- It is reported to HMRC on the FPS like other pay

- Occupational (contractual) sick pay, if you offer it, normally absorbs SSP rather than being paid on top

Because SSP is generally not recoverable from HMRC under standard rules, it is a direct cost to the employer, which makes accurate calculation important for both compliance and budgeting.

## Common SSP mistakes

- **Paying SSP on non-qualifying days**, inflating the amount due

- **Forgetting to serve waiting days** at the start of a fresh, non-linked absence

- **Missing linked periods**, so waiting days are wrongly deducted again

- **Continuing SSP past the maximum** number of weeks

- **Failing to record average weekly earnings**, leaving eligibility undocumented

- **Treating SSP as tax-free** — it is taxable like ordinary pay

## Interaction with contractual sick pay and other leave

Many employers offer enhanced, contractual sick pay. The usual approach is that contractual pay includes the SSP element rather than stacking on top, so the employee receives the higher of the two, not both in full. Payroll should be configured to reflect your specific policy wording. SSP can also interact with other statutory payments and leave, so the order in which entitlements apply needs care.

Reliable payroll software automates the qualifying-day calendar, tracks waiting days and linked periods, caps the entitlement, and flags eligibility based on recorded earnings. neart.ai builds enterprise-grade products in the HR and payroll space, and the consistent finding is that SSP errors almost always come from manual calendar arithmetic rather than from the rules themselves being misunderstood.

## Practical takeaway

Confirm eligibility against the earnings threshold, pay SSP only on qualifying days after the waiting days are served, watch for linked absences, and stop at the maximum number of weeks. Run SSP through payroll as taxable earnings, itemise it on the payslip, and align it with your contractual sick pay rules. Automate the day-counting and most SSP problems disappear.