Substantive vs Fixed-Term NHS Contracts
NHS substantive and fixed-term contract holders receive identical basic AfC salaries at the same band and pay point — but differ significantly on pension accrual continuity, sick pay entitlement, pay progression rights, redundancy eligibility and access to specialist premia. A Band 6 nurse on a fixed-term contract earns the same £40,545 mid-point gross as a substantive colleague but may lose pension continuity, sick pay history and progression rights depending on contract length and trust policy. This guide covers every material pay and financial difference between the two contract types for NHS staff in 2026/27.
What Is a Substantive NHS Contract?
A substantive contract is a permanent or open-ended NHS employment contract with no specified end date. It carries the full range of AfC entitlements — continuous service rights, full sick pay accumulation, pension continuity, redundancy protection and unrestricted pay progression.
Substantive posts are the standard employment model for NHS staff. All AfC terms and conditions apply in full from day one and accumulate uninterrupted throughout the duration of employment. There is no financial ceiling created by a contract end date.
What Is a Fixed-Term NHS Contract?
A fixed-term contract has a specified end date — typically three months to two years. Fixed-term contracts are used for:
- Maternity and parental leave cover posts
- Project-funded or grant-funded roles
- Research positions tied to funding cycles
- Service development pilots
- Temporary workforce expansion during high demand
Fixed-term employees have the same legal rights as permanent employees under the Fixed-Term Employees (Prevention of Less Favourable Treatment) Regulations 2002. They cannot be treated less favourably than comparable permanent staff in contractual terms — but practical financial differences arise from service-length-based entitlements that accumulate more slowly on short contracts.
Basic Pay — Where Both Contract Types Are Identical
Basic AfC salary at the same band and pay point is identical for substantive and fixed-term NHS staff. A Band 6 fixed-term employee at pay point 3 earns £40,545 — exactly the same as a Band 6 substantive employee at the same point. The financial differences arise from what accumulates around the basic salary, not the salary itself.
| Pay Point | Annual Salary | Monthly Gross | ~Monthly Take-Home |
| Point 1 | £37,338 | £3,112 | £2,005 |
| Point 2 | £38,890 | £3,241 | £2,078 |
| Point 3 | £40,545 | £3,379 | £2,163 |
| Point 4 | £42,328 | £3,527 | £2,247 |
| Point 5 | £44,962 | £3,747 | £2,377 |
Take-home figures apply equally to both contract types at the same pay point. Deductions for tax, NI and pension are identical. The contract type does not affect your payslip at a given point — it affects how quickly you reach higher points, and what protections surround you.
Use the NHS Band 6 take-home calculator to verify your exact net pay after all deductions.
Pay Progression — Where Fixed-Term Staff Lose Out
AfC pay progression is annual and based on time in post. For fixed-term staff, two specific problems arise.
Problem 1 — Short Contracts May Not Reach an Increment Point
A fixed-term contract of less than 12 months may end before the annual increment is triggered. A Band 6 nurse on an eight-month maternity cover contract enters at Point 1 (£37,338) and leaves at Point 1 — never reaching Point 2 (£38,890). The £1,552 gross annual difference is permanently missed for that contract period.
Problem 2 — Progression Does Not Automatically Transfer Between Trusts
If a fixed-term employee moves to a new trust at the end of their contract, the new employer is not obligated to match their previous pay point unless they have been in continuous NHS service. A Band 6 nurse who has reached Point 3 at one trust may re-enter at Point 1 at the next trust if the move constitutes a break in continuous service.
Substantive employees accumulate pay points uninterrupted. Fixed-term employees on successive short contracts may cycle repeatedly through lower pay points — effectively capping their real earnings below what their tenure would otherwise justify.
For a full explanation of how AfC pay progression works and how to protect it, see the NHS pay progression and increments guide.
NHS Pension — The Continuity Risk on Fixed-Term Contracts
Both substantive and fixed-term NHS employees are automatically enrolled in the NHS Pension Scheme and accrue pension under identical rules — 1/54th of pensionable pay per year under the 2015 CARE scheme. The critical difference is what happens between fixed-term contracts.
A gap between contracts — even a few weeks — stops pension accrual entirely. The NHS Pension Scheme does not pay retrospectively for employment gaps. Every week without a contract is a week of pension permanently lost.
| Scenario | Weekly Pension Accrual Lost | Employer Contribution Lost | 25-Year Retirement Cost |
| Band 5 — 4-week gap | £11.88 | £342 | £14,820 |
| Band 6 — 4-week gap | £14.44 | £416 | £18,032 |
| Band 7 — 4-week gap | £17.50 | £504 | £21,840 |
| Band 6 — 12-week gap | £14.44 x 12 | £1,248 | £54,096 |
The employer contributes 23.7% of pensionable pay — £9,609 per year at Band 6 mid-point. This stops entirely during any gap between contracts. Small gaps compound significantly over a career involving multiple fixed-term posts.
Model the long-term pension cost of contract gaps using the NHS pension calculator.
Sick Pay — The Biggest Financial Risk for Fixed-Term NHS Staff
AfC sick pay entitlement is based on continuous NHS service. This is where fixed-term employees on short or successive contracts are most financially disadvantaged.
| Continuous Service | Full Pay | Half Pay |
| Under 1 year | 1 month | 2 months |
| 1 — 2 years | 2 months | 2 months |
| 2 — 3 years | 4 months | 4 months |
| 3 — 5 years | 5 months | 5 months |
| Over 5 years | 6 months | 6 months |
A fixed-term employee who has been in post for seven months falls ill and faces a maximum of one month full pay followed by two months half pay before dropping to Statutory Sick Pay of £184 per week. A substantive colleague with five years’ service receives six months full pay and six months half pay for the same illness.
Financial Gap — Band 6, Six-Month Illness, 7 Months Service vs 5+ Years
| Month | Fixed-Term (7 months service) | Substantive (5+ years) | Monthly Gap |
| Month 1 | £3,379 (full pay) | £3,379 (full pay) | £0 |
| Month 2 | £1,690 (half pay) | £3,379 (full pay) | £1,689 |
| Month 3 | ~£800 (SSP) | £3,379 (full pay) | £2,579 |
| Month 4 | ~£800 (SSP) | £3,379 (full pay) | £2,579 |
| Month 5 | ~£800 (SSP) | £3,379 (full pay) | £2,579 |
| Month 6 | ~£800 (SSP) | £1,690 (half pay) | £890 |
| Total gap | — | — | ~£10,316 |
The cumulative sick pay gap over a six-month illness between a new fixed-term employee and a substantive colleague with five years’ service can exceed £10,000. This is the single largest financial risk of fixed-term NHS employment.
Calculate your exact sick pay entitlement based on your service length and band using the NHS sick pay calculator.
Annual Leave — Pro-Rata for Fixed-Term Contracts
Annual leave entitlement is calculated pro-rata for fixed-term contracts shorter than a full leave year. The daily rate and per-day cash value are identical to a substantive employee at the same band — only the total number of days differs proportionally.
| Contract Length | Leave Accrued (under 5 yrs service) | Leave Accrued (over 10 yrs) | Cash Value (Band 6) |
| 3 months | 6.75 days | 8.25 days | £1,053 — £1,286 |
| 6 months | 13.5 days | 16.5 days | £2,105 — £2,573 |
| 9 months | 20.25 days | 24.75 days | £3,157 — £3,860 |
| 12 months | 27 days | 33 days | £4,211 — £5,146 |
Fixed-term employees must take all accrued leave before the contract end date or receive payment in lieu. Unused leave that cannot be taken due to service requirements in the final weeks of a contract is paid at the daily rate in the final salary. Check your entitlement with the
Redundancy — Where Fixed-Term Staff Are Most Exposed
When a fixed-term contract expires and is not renewed, this is not legally redundancy — it is contract expiry. The key financial consequence is that statutory redundancy pay and NHS enhanced redundancy terms do not apply to contract expiry.
Redundancy only applies where a fixed-term employee is dismissed before their contract end date because the role is no longer required. In that circumstance, AfC redundancy terms apply in full — including the NHS enhanced redundancy calculation that significantly exceeds the statutory minimum.
| Scenario | Redundancy Entitlement | Enhanced NHS Terms Apply? |
| Fixed-term contract expires — not renewed | None — contract expiry not redundancy | No |
| Fixed-term employee dismissed early (role eliminated) | Yes — statutory + NHS enhancement | Yes |
| Substantive employee — role eliminated | Yes — full NHS enhanced redundancy | Yes |
| Substantive employee — voluntary (MARS) | Yes — enhanced mutual agreement terms | Yes |
For the full NHS redundancy calculation and what enhanced terms are worth at your band, use the NHS redundancy calculator.
For Mutual Agreement to Resign scheme calculations, see the NHS MARS calculator.
Recruitment and Retention Premia — Access for Fixed-Term Staff
Recruitment and Retention Premia (RRP) are additional payments above AfC basic pay awarded to specific roles or geographic areas where recruitment or retention is difficult. Fixed-term employees are eligible for RRP on the same basis as substantive employees — if the post attracts RRP, both contract types receive it.
In practice, RRP is more commonly attached to substantive posts. Short fixed-term contracts in high-turnover specialisms may not attract RRP even where equivalent substantive posts do — because the trust calculates RRP necessity based on long-term retention need, not short-term cover.
Specialist fixed-term roles — such as fixed-term autism specialist posts, research physiologist roles or interim clinical leads — may attract RRP where the specialism is genuinely hard to recruit. The determination is post-specific and trust-specific.
For context on how specialist NHS roles are banded and paid, see the NHS autism specialist salary guide as an example of how specialist banding and premia apply to non-standard clinical roles.
For full detail on how RRP is calculated and which roles qualify, see the NHS recruitment and retention premia guide.
Maternity and Paternity Pay — Fixed-Term Risks
Fixed-term employees have the same statutory maternity and paternity pay rights as substantive employees. NHS Occupational Maternity Pay — which significantly exceeds statutory maternity pay — also applies to fixed-term staff, subject to qualifying service conditions.
The critical risk: if your fixed-term contract expires during maternity leave, your employer is not obligated to extend it solely because you are on maternity leave. The contract ends on its specified date. Occupational Maternity Pay stops at that point, and you fall to SMP or zero depending on your circumstances.
For substantive employees, maternity leave and pay continue unaffected by any temporary staffing pressures or service changes. The contractual protection is permanent.
Calculate your NHS maternity pay entitlement under both contract types using the NHS maternity pay calculator.
Hourly Pay — Identical Across Contract Types
The basic hourly rate is the same for substantive and fixed-term staff at the same band and pay point. Unsocial hours enhancements — Saturday (time + 47%), Sunday and bank holidays (time + 94%), and weekday evening and night rates — apply equally to both contract types under AfC.
| Band | Entry Hourly | Mid Hourly | Top Hourly | Sunday Rate (Mid) |
| Band 5 | £15.37 | £17.10 | £18.71 | £33.17 |
| Band 6 | £19.15 | £20.79 | £23.06 | £40.33 |
| Band 7 | £23.67 | £25.22 | £27.08 | £48.93 |
| Band 8a | £27.57 | £29.30 | £31.03 | £56.84 |
Calculate your exact hourly rate and unsocial hours earnings at your band using the NHS hourly rate calculator.
Band-by-Band Financial Comparison — One Year in Post
This table summarises the total financial difference between a substantive and fixed-term employee at the same band over one year, assuming the fixed-term employee has under one year’s continuous service and falls ill for two months during the year.
| Band | Basic Pay (identical) | Sick Pay Gap (2 months illness) | Pension Gap (4-week break) | Total 1-Year Financial Disadvantage |
| Band 5 | £33,344 | ~£4,200 | ~£1,300 | ~£5,500 |
| Band 6 | £40,545 | ~£5,069 | ~£1,580 | ~£6,649 |
| Band 7 | £49,178 | ~£6,147 | ~£1,920 | ~£8,067 |
| Band 8a | £57,129 | ~£7,142 | ~£2,230 | ~£9,372 |
These are conservative estimates. They exclude progression losses from incomplete increment cycles, redundancy ineligibility and reduced maternity pay exposure. The real financial gap is higher for staff on consecutive short fixed-term contracts over multiple years.
Converting Fixed-Term to Substantive — Financial Implications
Under the Fixed-Term Employees Regulations 2002, employees who have been continuously employed on fixed-term contracts for four or more years have the right to request that their contract be treated as permanent, unless the employer can objectively justify continued fixed-term status.
Conversion to a substantive contract does not backdated sick pay service or pension accrual. Service from the first fixed-term start date counts as continuous service for sick pay purposes — this is the key financial benefit of conversion. Pension accrual gaps during periods between contracts remain permanent losses.
| Entitlement | On Conversion to Substantive | Backdated? |
| Sick pay service length | Counts from first continuous service date | Yes — if continuous service maintained |
| Pension accrual gaps | Not recovered | No — permanent loss |
| Pay point progression | Continues from current point | No reset |
| Redundancy eligibility | Applies immediately on conversion | No — from conversion date only |
| Annual leave entitlement | Recalculated based on total continuous service | Yes |
NHS Bank Work vs Fixed-Term — A Financial Comparison
Some NHS staff on short fixed-term contracts also hold bank contracts at the same or another trust. Bank work is not the same as a fixed-term contract — it has no guaranteed hours, no sick pay and no annual leave entitlement. However, bank roles do contribute to NHS Pension Scheme accrual during periods worked.
| Feature | Fixed-Term Contract | NHS Bank Work |
| Basic pay | AfC rate — guaranteed | AfC rate — per shift only |
| Sick pay | AfC entitlement (service-dependent) | None |
| Annual leave | Pro-rata AfC entitlement | Rolled into hourly rate (12.07%) |
| Pension accrual | During contract period | During shifts worked |
| Redundancy eligibility | If dismissed before contract end | None |
| Guaranteed income | Yes — for contract duration | No |
For side income options alongside NHS employment including bank work, see the NHS side hustles guide.
What to Check Before Accepting a Fixed-Term NHS Post
Before signing a fixed-term contract, verify the following to understand the full financial picture:
- Continuous service recognition — confirm whether the trust recognises your previous NHS service for sick pay purposes
- Pension gap risk — check whether the start date leaves a gap from your previous post and plan to minimise it
- Pay point on entry — confirm which pay point you are appointed at and whether previous progression is recognised
- RRP eligibility — ask explicitly whether the post attracts any recruitment and retention premium
- Contract renewal probability — assess realistically whether renewal is likely before relying on ongoing income
- Maternity planning — if relevant, understand the contract end date risk in relation to any maternity leave period
To understand how pay band moves work when converting between contract types or moving trusts, see the NHS pay band promotion guide.
Frequently Asked Questions
Do fixed-term NHS staff get the same pay as substantive staff?
Yes — basic AfC salary at the same band and pay point is identical. A Band 6 fixed-term employee earns the same gross salary as a Band 6 substantive employee at the same pay point. The financial differences arise from sick pay entitlement, pension continuity, progression speed and redundancy eligibility — not basic salary.
Does a fixed-term contract affect NHS pension accrual?
Pension accrues identically during the fixed-term contract. The risk is the gap between contracts — any break in NHS employment stops pension accrual and forfeits the 23.7% employer contribution for that period. These gaps cannot be backdated or recovered. Minimising gaps between successive fixed-term posts protects pension continuity.
What sick pay does a fixed-term NHS employee get?
The same AfC sick pay structure applies — but entitlement is based on continuous NHS service length. An employee seven months into their first NHS post receives one month full pay and two months half pay before dropping to SSP. The same employee on a substantive contract with five years’ service receives six months full pay and six months half pay. The contract type itself is not the determining factor — continuous service length is.
Can a fixed-term NHS employee become permanent?
Yes. Under the Fixed-Term Employees Regulations 2002, employees continuously employed on fixed-term contracts for four or more years can request permanent status. The employer must either agree or provide objective justification for continued fixed-term status. Conversion does not backdate pension gaps but does recognise continuous service for sick pay entitlement.
Do fixed-term NHS staff get redundancy pay?
Only if dismissed before the contract end date because the role is no longer required. Contract expiry — non-renewal at the end of the fixed term — is not legally redundancy and does not trigger redundancy pay. Dismissal before contract end for role elimination triggers full NHS enhanced redundancy terms.
Is pay progression the same on a fixed-term contract?
The annual increment rules are the same — but short contracts may end before the 12-month increment point is reached. A fixed-term employee on an eight-month contract never triggers their annual increment. Moving between trusts at contract end may also reset pay point recognition depending on whether continuous service is maintained.
Do fixed-term NHS staff get the same hourly rate?
Yes. Basic hourly rates and all AfC unsocial hours enhancements are identical for fixed-term and substantive staff at the same band and pay point. Contract type does not affect hourly pay.
Summary
NHS substantive and fixed-term contracts deliver identical basic AfC pay at the same band and pay point — but diverge substantially on sick pay entitlement, pension continuity, pay progression speed, redundancy protection and maternity pay security.
The largest single financial risk of fixed-term employment is sick pay exposure: a Band 6 employee with under one year’s service faces a potential £10,000+ gap versus a five-year substantive colleague for the same six-month illness. Pension gaps between contracts are permanent — accrual lost during employment breaks cannot be recovered.
Pay progression may stall on short contracts that end before the 12-month increment. Fixed-term employees have legal protections under the 2002 Regulations and can request permanent status after four years of continuous fixed-term employment. Before accepting a fixed-term post, verify continuous service recognition, pay point on entry, pension gap risk and RRP eligibility.
Disclaimer: All figures reflect 2026/27 Agenda for Change pay rates for England. Sick pay, pension and redundancy figures are illustrative estimates based on mid-point salaries and standard service scenarios. Individual entitlements depend on continuous service length, contract terms, trust policy and personal circumstances. Verify entitlements with your trust HR department and NHS Employers guidance.
Daniel Carter is a senior NHS Payroll Accountant with over 10 years of experience in Agenda for Change pay structures, tax, and pensions. He created the NHS Pay Calculators platform to help NHS staff easily understand their take-home pay, sick pay, maternity pay, and pension entitlements through simple, accurate online tools.
