Self-pay vs health insurance: which costs less

Two different products

Self-pay and insurance answer different questions. Self-pay buys one treatment at a price you agree in advance. Insurance buys cover against treatment you might need in the future for conditions you do not have yet. The ABI puts the rule plainly: you will normally not be covered for any illness you are currently suffering from, or have already had.

So the first question is whether you already know what you need. If a consultant has told you a hip or a cataract needs an operation, no new policy will pay for it. Self-pay or the NHS are the two choices. If you are well and want to skip NHS waiting lists for whatever comes next, insurance is the product designed for you.

What self-pay treatment costs

Hospital groups publish guide prices for their common procedures. On 22 October 2026 the figures read:

Circle Health Group gives £14,500 as the average cost of a private hip replacement across the UK. Its own packages start at £12,750. Spire's figure of £16,024 is a guide and the page warns the final price can rise with your choice of consultant, the anaesthetic, the implant and your medical history.

A fixed-price package normally covers the surgery, consultant and anaesthetist fees, the hospital stay, a private room and follow-up appointments. Practice Plus Group adds a pre-operative nurse review, prescriptions, dressings and physiotherapy during the admission, and says the quoted price holds even if complications arise. Two items sit outside almost every package. The first consultation is billed separately, and any scans or tests needed to decide on surgery are paid for at the time. Full guide prices by provider are on the self-pay surgery prices page.

What insurance costs

Insurers do not publish a price list because every premium is individual. Vitality publishes one worked example: Core Cover from £44 a month for a 35-year-old in Peterborough with full medical underwriting, the Consultant Select hospital list, a £250 excess and a £500 out-patient limit. The same page says premiums generally rise by around 3% a year as you age, and claims push the renewal price up further.

Three features decide how much an insured person still pays at the point of treatment. The excess is deducted from each claim or each policy year. The out-patient limit caps consultations and tests before you are admitted. Exclusions remove whole categories of care. These are explained on the excess and exclusions page.

The ABI's January 2026 figures show the scale of the market: 6.5 million people had cover in 2024, 1.8 million made a claim, and insurers paid out £4 billion.

The sums for a known operation

Take the £44 a month example premium. Over a year it comes to £528. Set against the cheapest package prices:

The comparison flatters insurance, because £44 is a starting price for a young applicant and would not stay at £44 for 24 years. It also ignores the £250 excess paid on a claim. The point is simpler. A policy bought after a diagnosis pays nothing towards the diagnosed condition, so the premiums are added cost beyond the operation.

The sum reverses when you are well. Nobody can self-pay for an operation they do not know is coming, and a £13,000 bill arriving without warning is the risk a policy removes.

Spreading the cost of self-pay

Every large hospital group offers finance through a credit partner. The terms on 22 October 2026:

• Circle Health Group, through Chrysalis Finance: 0% over 10 months, 9.9% APR for terms up to five years, loans from £350 to £25,000, no deposit.
• Practice Plus Group, through Chrysalis Finance: 0% over 12 months, 14.9% APR over 24 to 60 months. You need to be over 18, in work or self-employed and resident in the UK for three years.
• Spire Healthcare, through Omni Capital Retail Finance: representative example for a standard hip replacement of a £14,556 loan with a £1,250 deposit over 48 months at 9.9% APR, total repayable £17,520.

Spire's example shows the cost of the longer term. The £17,520 repaid is £2,964 more than the loan plus deposit. The 0% options cost nothing extra if you can clear the balance inside 10 or 12 months, which on a £2,099 cataract is £210 a month over 10 months.

Steps to decide

1. Get a diagnosis. An NHS GP referral or a private consultation (from £145 at Practice Plus Group) tells you what treatment you need.
2. If the condition already exists, rule out new insurance for it. Ask the NHS GP about the waiting time for the procedure in your area.
3. Request fixed-price quotes from at least two hospital groups. Ask for the full inclusions list and the price of the first consultation and pre-operative tests.
4. If you need to spread the cost, compare the 0% term against the longer APR. Work out the total repayable, not the monthly figure.
5. If you are well and want cover for the future, get quotes with different excess levels and out-patient limits, and read the guide to comparing policies.

Mistakes to avoid

Buying a policy after a diagnosis in the hope it will pay. Insurers check medical history at claim time under moratorium underwriting, and a condition from the previous five years is excluded.

Reading the monthly finance figure as the price. Spire's £365 a month over 48 months totals £17,520 against a guide price of £16,024.

Assuming the package includes the first consultation and scans. Circle Health Group, Practice Plus Group and Spire all bill these separately.

Treating a guide price as fixed. Nuffield Health and Spire both say the figure is confirmed only after you have seen the consultant.

Where the figures come from

Procedure prices are from the Circle Health Group, Practice Plus Group and Spire Healthcare price pages read on 22 October 2026. The £44 example premium and the 3% yearly rise are from Vitality's cost guide. Market figures are from the ABI's January 2026 claims release. Underwriting rules are from the ABI and AXA Health.