A £500,000 mortgage is a large loan that typically requires a high household income and a substantial deposit. Specialist lenders and high-income-multiple products may be needed to secure this level of borrowing.
£500k Mortgage Monthly Repayments
At this loan size, even a 0.25% rate difference saves over £8,000 in total interest. Your rate depends on your LTV and credit profile — check what a good rate looks like in 2026.
| Interest Rate | 25 Years | 30 Years | 35 Years |
|---|---|---|---|
| 3.5% | £2,503 | £2,245 | £2,066 |
| 4.0% | £2,639 | £2,387 | £2,214 |
| 4.5% | £2,780 | £2,533 | £2,369 |
| 5.0% | £2,924 | £2,684 | £2,526 |
| 5.5% | £3,071 | £2,839 | £2,687 |
Consider overpaying to reduce the balance faster. At £500k, a fixed rate provides crucial payment certainty, but a part interest-only structure could lower monthly costs.
Salary Needed
Most lenders assess affordability at 4–4.5× income. High net worth lenders may offer bespoke underwriting. Self-employed and commission-based earners can access higher multiples with specialist brokers.
| Multiple | Salary |
|---|---|
| 4× | £125,000 |
| 4.5× | £111,111 |
| 5× | £100,000 |
| 5.5× | £90,909 |
Deposit, Stamp Duty & Protection
A 10% deposit on a £556k property is £55,600. Your LTV determines your rate band.
Stamp duty on a £556k property is £15,300 for home movers. Consider life insurance, critical illness cover, and income protection for a mortgage of this size.
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Frequently Asked Questions
- How much is a £500k mortgage per month?
- At 4.5% over 25 years: ~£2,780/month. At 4.0%: ~£2,639. At 5.0%: ~£2,924.
- What salary do I need for a £500k mortgage?
- At 4× income: £125,000. At 5× income: £100,000. At 5.5×: £90,909.
- Can I get a £500k mortgage on £100k salary?
- Yes — at 5× income that's exactly £500k. Several lenders offer this, especially for professionals.
Sources & References
- Mortgage calculator — MoneyHelper
- UK house price data — ONS
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