Do Brokers Get Better Rates Than Banks?

The Honest Answer

For a typical UK remortgage in 2026, a whole-of-market broker will find a rate between 0.2% and 0.8% lower than your bank's best loyalty offer. Occasionally the gap is larger (1%+ on specialist cases). Occasionally it is zero — when your bank is pricing aggressively to retain back-book customers. Very rarely is the bank actually cheaper than the whole market.

On a £250,000 balance, 0.5% per year is roughly £1,250 of saved interest — £6,250 over a 5-year fix. On a £500,000 balance the numbers double. This is why, mathematically, a broker fee of £300–£750 is almost always outweighed by the rate improvement.

Why the Gap Exists

The gap is not because banks are greedy. It is because of how mortgage pricing actually works: lenders set rates based on their cost of funds, target volumes, and risk appetite. Smaller lenders (challenger banks, building societies, specialist lenders) compete hardest on rate because they cannot compete on brand. Larger banks have brand and distribution advantages, so they price slightly higher and rely on inertia.

When you go direct to your bank, you only see their rates. When a broker places your case, they quote the 5-10 lenders whose criteria fit you — and the smallest, hungriest lender almost always undercuts the big brand. That undercut is the broker's rate advantage.

Worked Example: Vanilla Case

Scenario: £280,000 remortgage, 65% LTV, employed, clean credit, 3-bed semi in Manchester. Current deal ends in 3 months.

Bank's retention offer: 4.75% 5-year fix, £999 arrangement fee, free legals, free valuation.

Broker-sourced rate from a building society: 4.38% 5-year fix, £495 arrangement fee, free legals, free valuation, £300 broker fee.

5-year cost bank: (0.0475 × £280,000 × 5) + £999 = £67,499

5-year cost broker: (0.0438 × £280,000 × 5) + £495 + £300 = £62,115

Saving from broker: £5,384 over 5 years. This is typical of the vanilla gap.

Worked Example: Self-Employed Case

Scenario: £400,000 remortgage, 75% LTV, self-employed ltd company director with 2 years of accounts, £90k salary + dividends.

Bank's offer: declined at first pass; on appeal offered 5.25% at restricted LTV of 70%, requiring additional capital injection.

Broker-sourced rate from a specialist: 4.65% at 75% LTV, 5-year fix, £995 arrangement fee, £500 broker fee.

The bank essentially cannot do the deal at 75% LTV without a capital injection. The broker-sourced 4.65% at 75% saves the borrower both the rate premium (0.6% = £12,000 over 5 years) and the need to find extra deposit. For complex cases the rate gap widens from the vanilla case's 0.37% to 0.6%+.

Worked Example: Bank Wins

Scenario: £150,000 remortgage, 50% LTV, employed civil servant, 10 years at same employer, perfect credit. Current bank is a mainstream high-street lender actively retaining back-book.

Bank's retention offer: 4.20% 5-year fix, £0 arrangement fee, free legals, free valuation. No underwrite required (product transfer).

Broker-sourced best in market: 4.18% 5-year fix, £999 arrangement fee, free legals, £495 broker fee.

5-year cost bank: (0.0420 × £150,000 × 5) = £31,500

5-year cost broker: (0.0418 × £150,000 × 5) + £999 + £495 = £32,844

Saving from bank: £1,344 over 5 years. The bank wins on this profile because the rate gap is tiny (0.02%) and the broker/arrangement fees outweigh it. This is the case type where going direct is genuinely cheaper.

How to Know Which One You Are

The only way to know whether you are in a 'broker wins big' case or a 'bank wins narrow' case is to get both quotes and compare. Ask your bank for their best retention offer. Get a whole-of-market broker to quote the market. Compare the total 5-year cost including all fees. The lower number wins.

Do not rely on comparison sites alone for this — they often show rates that require you to be a new customer of the lender, which you may not qualify for at those rates. A broker's quote is based on your actual case being placeable with the named lender.