NHS London Weighting (HCAS) 2026/27 — Rates by Zone

If you work for the NHS in or around London, you're entitled to a High Cost Area Supplement (HCAS) — commonly known as London weighting. It's one of the most asked-about aspects of NHS pay, and this guide gives you the exact rates for 2026/27, worked examples for common bands, and an honest look at whether it really covers the higher cost of living.

HCAS Rates 2026/27

The supplement is calculated as a percentage of your basic salary, but subject to a minimum and maximum cap. If the percentage calculation falls below the minimum, you receive the minimum. If it exceeds the maximum, you receive the maximum. For most staff in Bands 2–6, the percentage calculation falls within the range. Higher bands tend to hit the maximum cap.

Inner London covers most central London boroughs and trusts like UCLH, King's College, and Imperial. Outer London covers surrounding boroughs and trusts further from the centre. The Fringe zone covers areas just outside the M25, including parts of Hertfordshire, Essex, Surrey, and Kent.

Worked Example: Band 5 Entry (£32,073)

All three calculations fall within the min/max range, so Band 5 entry staff receive the exact percentage amount in each zone.

Worked Example: Band 7 Entry (£49,387)

At Band 7, the percentage calculation exceeds the maximum cap in all three zones. This means Band 7 and above receive the flat maximum amount regardless of their exact salary.

Does It Really Cover the Cost?

The honest question is whether the supplement covers the higher cost of living in London. Here's a realistic comparison for a Band 5 nurse:

• •Inner London HCAS: £6,415/year (£535/month before tax)
• •After tax and NI, that's roughly £375–£410/month extra in your pocket
• •Average one-bed rent in Inner London: around £1,600–£1,900/month
• •Average one-bed rent outside London: around £700–£900/month
• •Rental premium: roughly £700–£1,000/month more in London

So the HCAS covers about 40–55% of the rental premium for Inner London. It helps significantly, but it doesn't fully bridge the gap. The picture improves if you're sharing accommodation — splitting a two-bed flat with a colleague can bring the rental premium down to £400–£600 per person, which the HCAS covers more comfortably.

However, the financial picture is more nuanced than just rent. London offers significantly more bank shift and overtime opportunities, which can boost your income by £200–£500 per month. There are also more specialist roles, more opportunities for career progression, and more choices when it comes to trusts and specialities. Many staff find that a few years in London accelerates their career even if finances feel tighter in the short term.

HCAS Is Pensionable — And That Matters

One of the best features of HCAS is that it's pensionable. The supplement is added to your basic salary for pension calculation purposes, which means it increases both your pension contributions and the pension you're building up. For a Band 5 nurse receiving £6,415 Inner London HCAS over a 30-year career, the additional pension accrual could be worth thousands of pounds per year in retirement income. It's a benefit that's easy to overlook but adds serious long-term value.

Other Financial Considerations

Transport costs in London are higher, but most NHS trusts are well served by public transport, and you may qualify for an interest-free season ticket loan through your employer. Some London trusts also offer key worker housing schemes or housing assistance, which can significantly reduce accommodation costs. Always ask about these during recruitment.

Some trusts in high-cost areas outside London offer Recruitment and Retention Premia (RRP) for hard-to-fill roles. These are separate from HCAS and vary by trust and role — particularly common for mental health nursing and radiography.

Part-Time Workers and HCAS

If you work part-time, your HCAS is pro-rated. So if you work 60% of full-time hours, you receive 60% of the supplement. The minimum and maximum amounts are also pro-rated accordingly.

Making the Decision

Use our take-home pay calculator to see your exact take-home pay with HCAS included for any band and zone. It accounts for the higher pension contributions from the increased pensionable pay, so you can see the real monthly difference and plan your finances before making the move.