UK Mortgage Fees Calculator
Calculate all UK mortgage fees including arrangement, valuation, broker, and legal costs. See the true cost of adding fees to your loan, compare fee-free versus fee-bearing deals, and decide whether a product transfer or full remortgage is cheaper when your deal ends. All figures in GBP.
UK mortgages can carry up to six distinct fee types. Understanding each helps you compare deals accurately and negotiate where possible.
The only number that truly matters when comparing UK mortgage deals is the total cost over the deal period — all interest payments plus all fees, minus any cashback. Everything else is a partial picture.
How to Use This UK Mortgage Fees Calculator
Enter your mortgage amount and the individual fees you have been quoted — arrangement fee, valuation fee, broker fee, and legal fee. The calculator shows your total fees, fees as a percentage of the loan, and crucially the extra interest cost of adding your arrangement fee to the loan rather than paying it upfront.
Why Fees Matter as Much as the Rate
- True cost comparison: A low rate with high fees can cost more than a slightly higher rate with no fees
- Adding fees to loan: Convenient, but you pay interest on those fees for the full term — a £2,000 fee at 4.5% over 25 years costs over £2,800 total
- Fee-free deals: Exist but typically carry a 0.2–0.5% higher rate — use the calculator to see if this is worth it
- Negotiable fees: Broker and legal fees can often be negotiated; arrangement fees generally cannot
All UK Mortgage Fees Explained
→ The main deal fee. Lower rate deals often charge higher fees. Can be added to loan.
Booking / Application Fee: £0–£250
→ Paid on application. Non-refundable if you withdraw. Upfront only.
Valuation Fee: £0–£1,500
→ Lender values the property. Free on many remortgage deals. Upfront only.
Broker Fee: £0–£1,000
→ Many brokers are fee-free (paid by lenders). Fee brokers charge £300–£1,000. Negotiable.
Legal / Conveyancing: £300–£1,800
→ Remortgage: £300–£800. Purchase: £800–£1,800. Some deals include free legals.
Product Transfer Fee: £0–£250
→ For staying with same lender — far cheaper than full remortgage.
The Cost of Adding Fees to Your Mortgage
The arrangement fee is the only UK mortgage fee that can typically be added to the loan balance. This is convenient if you are cash-constrained at completion, but it is significantly more expensive over the full term.
Example: £999 arrangement fee on a £200,000 mortgage at 4.5%, 25-year term
| Option | Fee Payment | Monthly Payment | Total Interest on Fee | True Fee Cost |
|---|---|---|---|---|
| Pay upfront | £999 at completion | £1,112/mo | £0 | £999 |
| Add to loan | Loan: £200,999 | £1,118/mo | +£1,200 over 25yr | £2,199 |
| Extra cost of adding | +£1,200 in interest | +120% more expensive | ||
The rule: pay fees upfront where possible. Only add to the loan if you genuinely cannot afford the upfront payment at completion.
Product Transfer vs Full Remortgage
When your deal ends, the two options are a product transfer (staying with your current lender) or a remortgage (switching to a new lender). Product transfers have become increasingly popular because they are cheaper and faster.
Product Transfer vs Remortgage comparison
| Feature | Product Transfer | Remortgage |
|---|---|---|
| Arrangement fee | Often £0 | £0–£2,000 |
| Valuation needed | Usually no | Yes (or free with deal) |
| Legal work | None | Required (or free with deal) |
| Credit check | Soft or none | Full credit check |
| Process time | Days | 4–8 weeks |
| Rate access | Your lender only | Full market |
| Best if | Rate difference <0.2% | Saving > £2,000 over deal period |