How much could a mortgage broker add to the cost of buying your home: £300, £1,000, or absolutely nothing?
The answer can feel surprisingly slippery because UK brokers use several different charging models. Some ask for a fixed fee, others take a percentage of the mortgage, and some do not charge the borrower directly at all. Their income may instead come from the mortgage lender.
That does not make every option equally good. A free broker can be excellent, while a paid broker may earn their fee by finding a more suitable deal or handling a complicated application. The useful question is not simply “How much does a broker cost?” It is “What am I paying for, and when will I pay it?”
The usual UK mortgage broker fee sits between £300 and £1,000
A common mortgage broker fee in the UK is between £300 and £1,000. Some brokers calculate the charge as a percentage of the mortgage rather than using a flat rate, with a typical range of around 0.35% to 1% of the amount borrowed.
That percentage can make a modest-sounding fee feel much larger on a big mortgage. On a £200,000 mortgage, a typical broker charge might work out at roughly £700 to £2,000. The higher figure represents the upper end of the usual percentage range, not a standard bill for every borrower.
Current typical pricing is often closer to 0.3% of the amount borrowed, although charges can rise to 1%. On a £200,000 loan, 0.3% would be £600. A broker quoting £499 or £599 may therefore be offering a fairly straightforward fixed-fee arrangement, while a percentage-based quote could cost more as the mortgage grows.
The difference matters because a broker’s work does not necessarily double when your mortgage doubles. That is one reason a fixed fee can look attractive for a larger loan. With a smaller mortgage, however, a percentage fee may produce a lower bill than a fixed charge.
Fixed fees are easier to read before you sign
A fixed fee gives you a clear number from the start. You know whether the advice will cost £399, £499, £699 or another stated amount, rather than watching the bill move with the size of the mortgage.
Alexander Hall, for example, charges a fixed fee of £499, payable after the client selects a mortgage. That kind of arrangement is simple to compare because the cost is not tied to the final loan amount.
Fixed fees can be especially appealing if you are borrowing a large sum. A £499 charge remains £499 whether the mortgage is £150,000 or £400,000, assuming the broker’s terms do not set different prices for different cases. Read those terms carefully: some firms use different fees for standard applications, buy-to-let mortgages, self-employed applicants or more complex borrowing situations.
The timing of payment deserves attention too. A fee may be due when you choose a mortgage, when the application is submitted, or at another stage agreed with the broker. Ask for the exact trigger in writing before you proceed. A cheap quote is less useful if you discover later that the fee becomes payable before the lender has formally approved the application.
Percentage fees can become expensive on a bigger mortgage
Percentage-based pricing is easy to calculate but harder to judge at a glance. A 0.5% fee sounds small. On a £200,000 mortgage, it is £1,000. On a £350,000 mortgage, it becomes £1,750.
That does not automatically make a percentage fee poor value. A broker handling unusual income, multiple properties, credit problems or a particularly tight deadline may provide work that goes well beyond comparing a few rates. Still, the percentage should be compared with the actual service, not accepted as a minor detail hidden in the paperwork.
Ask whether the percentage applies to the full mortgage amount and whether there is a minimum or maximum charge. A broker might quote “0.3%” but also apply a minimum fee, meaning smaller mortgages do not fall below a set amount. Another may cap the fee once the loan reaches a certain size. Those details can change the result more than the headline percentage suggests.
A quick calculation takes seconds. Multiply the mortgage amount by the quoted percentage. For a £250,000 mortgage, 0.3% is £750; 1% is £2,500. That gap is large enough to deserve a direct conversation, especially if two brokers appear to offer a similar service.
Some brokers charge you £0, but they are not working for free
Several large UK mortgage brokers do not charge clients directly for mortgage advice. L&C Mortgages is one example: it charges borrowers £0 and receives income from the mortgage provider instead.
This model can remove a noticeable cost from the home-buying budget, which is useful when deposits, surveys, legal fees and moving costs are already competing for attention. It also means you can access professional help without adding a separate advice fee to the mortgage process.
The arrangement still needs to be understood clearly. Ask how the broker is paid, whether it searches the whole market or a defined panel of lenders, and whether any services sit outside the free mortgage advice. A broker may not charge for arranging the mortgage but could price other work separately.
A fee-free service is not automatically less thorough. Nor is a paid service automatically better. The quality of the lender search, the broker’s understanding of your circumstances and the clarity of the advice matter more than the price tag by itself. I would treat “free” as a starting point for questions, not as a magic word that settles the decision.
What should you ask before agreeing to a broker’s fee?
Start by asking for the full charge in pounds, not just a percentage. If the broker uses a percentage, request an example based on the amount you expect to borrow. That instantly reveals whether the fee is £600 or closer to £2,000.
Then ask what the fee covers. It may include the initial assessment, lender research, mortgage recommendation, application support and communication with the lender. The precise package varies, so do not assume every broker includes the same work.
The payment point is just as important. Confirm whether the fee is payable upfront, after you select a mortgage, once the application is submitted or at another stage. Also ask what happens if your application does not proceed. The broker’s written terms should explain whether the fee remains payable and whether any part of it is refundable.
You should also find out whether the broker is independent, works from the whole market or uses a limited range of lenders. That information helps you understand the scope of the search. A broker who knows how to place difficult applications may be valuable even if the fee is higher, while a straightforward borrower with strong finances may prefer a simple fixed-cost or fee-free service.
The cheapest broker is not always the cheapest mortgage
A broker fee is only one part of the mortgage cost. A slightly cheaper broker does not necessarily lead to the cheapest overall deal, just as a higher fee does not guarantee a better rate.
Suppose one broker charges £499 and another charges £999. If the second broker finds a mortgage with a lower interest rate or more suitable terms, the difference in advice fees may be outweighed by the savings over the initial deal period. That comparison requires care, because arrangement fees, early repayment charges and the length of the fixed-rate period can all affect the total cost.
The reverse is possible too. If two brokers recommend broadly similar mortgages, paying an extra £500 for similar support may not make sense. Mortgage advice is one of those services where the cheapest quote can be useful, but only after you know what is included.
For many borrowers, a sensible target is a transparent fee, a clear explanation of how the broker is paid and no unpleasant surprises during the application. That may mean paying around £300 to £1,000, accepting a charge near 0.3% of the mortgage, or choosing a broker that charges no direct fee. The number matters. So does the reason behind it.