Uncapped success fees
A percentage fee with no upper limit rises in step with the claim, however large it gets. Sometimes that is fair; sometimes it is the most expensive term in the letter.
A red flag is a reason to ask more questions. It does not mean an adviser has done anything wrong. This page describes a practice in general terms and is not about any particular firm.
When it is a problem
- The claim could turn out much larger than expected, because a big project is in progress or the business is growing, and the fee would rise with it while the work stays much the same.
- The fee applies to the amount claimed, so a later reduction leaves you owing the full fee on money you have repaid.
- The percentage is high for the size of the claim, and a cap was never offered or was refused when you asked.
- Nobody has shown you a worked example at twice the claim you expect, so you have not seen the number you would pay in a good year.
When it is not a problem
- The claim is small and will stay small, so no realistic cap would ever be reached; a cap would add words to the letter and change nothing.
- The percentage is modest and applies to the amount received, so the fee already falls if the claim is reduced.
- You have seen the fee at the largest claim you can imagine and you are content with it, perhaps because a larger claim is also more work and more risk for the adviser.
- The adviser has offered a cap and you have chosen not to take it, because a fixed or capped alternative cost more on the claim you expect.
What to do
- Ask for a worked example on your figures, at the claim you expect and at double it.
- Ask whether the fee applies to the amount claimed or the amount received.
- Ask for a cap, per year or overall, at a figure you would be comfortable paying. The script for asking for a fee cap gives you the words.
- If the answer is no, decide with your eyes open: the capped fees and fixed fees pages show the alternatives on the same claim.
Read next
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© 2026 Swanson Reed. You may use the templates and checklists for your own business. Official material is used under the terms set by its publisher.

