Comparison · Mortgages · 2026
Fixed-Fee Mortgage Broker vs Commission-Only Broker UK 2026
Mortgage brokers are paid in one of two main ways: a fixed fee you pay directly, or a commission paid by the lender once your mortgage completes. Neither model is automatically better — the right choice depends on how complex your case is and how much you value fee transparency. Here is how they compare for 2026.
TL;DR - 30-Second Summary
- - Fixed-fee broker: you pay a set fee directly; often better for complex or specialist cases
- - Commission-only broker: paid by the lender; you pay nothing directly, good for simple mainstream cases
- - Ask both: which lenders they access and exactly when any fee is charged, before instructing
Side by Side: Fixed-Fee vs Commission-Only Broker
| Feature | Fixed-Fee Broker | Commission-Only Broker |
|---|---|---|
| Who pays | You, directly | Lender, on completion |
| Upfront cost to you | Yes, typically fixed regardless of loan size | None |
| Best suited to | Complex, self-employed or specialist cases | Straightforward, mainstream residential cases |
| Perceived conflict of interest | Lower, since payment is decoupled from lender chosen | Some, in theory, though FCA rules require suitability |
Who Should Choose What?
Consider a fixed-fee broker if...
- - You are self-employed, have adverse credit, or need a specialist lender
- - You value paying regardless of the product chosen, for perceived independence
- - Your case will require significant extra work
Consider a commission-only broker if...
- - You have a straightforward employed income and clean credit history
- - You want to minimise upfront costs
- - The broker confirms genuine whole-of-market access
Frequently Asked Questions
How does a fixed-fee mortgage broker charge for advice?
A fixed-fee broker charges you a set amount (often somewhere between a few hundred and around £500-£1,000, though this varies widely by firm and case complexity) for arranging your mortgage, regardless of the loan size, and may also keep some or all of the lender commission on top — always ask which applies.
How does a commission-only broker get paid?
A commission-only (fee-free) broker is paid entirely by the lender, usually a percentage of the loan amount or a fixed lender payment, once the mortgage completes. You pay nothing directly, which is why these are often advertised as "fee-free" brokers.
Does a fee-free broker have a conflict of interest?
Potentially. Because commission can vary between lenders, a broker paid only by commission could in theory be nudged toward products paying them more. Reputable brokers are required by FCA rules to recommend suitable products regardless, and many operate from a genuinely whole-of-market panel, but it is a reasonable question to ask directly.
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Is a fixed-fee broker always cheaper overall?
Not necessarily. Because commission-only brokers charge you nothing directly, they can be cheaper in cash terms for simple, mainstream cases. Fixed-fee brokers can be better value for complex cases (self-employed, adverse credit, specialist buy-to-let) where more work is required and access to niche lenders matters more than upfront cost.
Do I still pay a broker fee if my mortgage does not complete?
This depends on the firm. Some fixed-fee brokers charge a portion of the fee upfront regardless of outcome; others only charge on completion. Always clarify the fee structure, including any charge for a declined or withdrawn application, before instructing a broker.
Which type of broker gives access to more of the market?
Access to lenders depends on the individual firm's panel, not on whether they charge a fee. Some fee-free brokers are genuinely whole-of-market; some fixed-fee brokers are tied to a smaller panel. Ask any broker directly how many lenders they can access before assuming fee structure determines choice.
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Disclaimer: This is educational information, not financial advice. Broker fees and commission structures vary between firms — always ask for a written breakdown before instructing a broker, and check they are FCA authorised at register.fca.org.uk.
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