Usually yes - but it depends entirely on your funder. Many UK leasing companies will amend your contracted mileage part-way through the agreement, treating it as a contract variation with a recalculated monthly rental. Some refuse outright. If yours refuses, you pay excess mileage at hand-back instead. Either way, raising it early costs you less.
What's in this guide
- Can I change my mileage mid-lease?
- How does a mid-lease mileage amendment work?
- Should I amend the contract or just pay the excess?
- What does excess mileage actually cost?
- Can I reduce my mileage and pay less?
- What if the funder says no?
- Is it different on a business lease?
- Your next steps: a five-minute check
- Frequently asked questions
Key Takeaways
- Mid-lease mileage amendments are common but never guaranteed - approval sits with the funder (the finance company that owns the vehicle), not with your broker.
- An approved change means a revised allowance for the rest of the term, a recalculated monthly rental, usually a fresh credit check, and often an admin fee.
- Excess mileage in the UK is charged in pence per mile and rates vary widely by vehicle and funder - Carwow puts the typical range at 3p to 30p per mile.
- Mileage is measured against your total contract allowance at hand-back, not year by year, so a heavy first year can be balanced out later.
- Reducing your mileage rarely produces a refund for miles already unused - the earlier you act, the more there is to save.
Can I change my mileage mid-lease?
In many cases, yes. A large number of UK funders will consider a mid-term mileage amendment, usually as a formal variation to the existing agreement. But it is discretionary, not a right, and a minority of funders state plainly in their terms that mileage cannot be amended at any point during the contract. Your agreement is the deciding document.
So the honest answer has two halves. First: check what your funder allows, because the policies genuinely differ - some permit one amendment only, some won't look at a change inside the first 12 months, some require the increase to be meaningful (a nominal 500-mile bump usually isn't worth their processing time). Second: even where an amendment is allowed, it isn't free. You're asking the funder to re-price the residual value - what the vehicle is forecast to be worth when your lease ends - on the basis that it'll come back with more miles on it. The rental moves accordingly.
One thing that surprises people: your mileage isn't policed annually. Funders assess the odometer against the total contracted mileage when the vehicle goes back. A 36-month contract at 10,000 miles a year gives you 30,000 miles to use however you like across those three years. Do 16,000 in year one because of a temporary commute, then 7,000 in each of years two and three, and you finish on 30,000 with nothing to pay. Plenty of drivers panic in month eight when they didn't need to.
How does a mid-lease mileage amendment work?
You (or we, on your behalf) ask the funder to re-quote the remaining term at a higher annual mileage. If they agree, they issue a revised schedule: a new total mileage allowance, a new monthly rental, and usually a fresh credit check plus an admin fee. Nothing changes until you sign the updated paperwork.
What the funder typically checks
Account standing
The agreement needs to be up to date. Accounts in arrears, in dispute or subject to insolvency proceedings are normally excluded from amendments altogether.
How much term is left
There has to be enough of the contract remaining for the funder to recover the extra cost across the rentals. With only a handful of payments left, most will simply tell you to pay the excess.
Size of the change
Several funders apply a minimum uplift before they'll process a variation - a meaningful step up in annual mileage rather than a token adjustment.
Affordability
Because the rental rises, most funders re-run a credit check. As an FCA-regulated broker we'll always tell you before that happens - it isn't done quietly in the background.
Timescales are rarely dramatic. In our experience the quote comes back within a few working days on most funders, and the revised direct debit takes effect from the next billing cycle after you've signed. If you're unsure who your funder even is - and it's a fair question, since the broker you dealt with and the company that owns the car are different businesses - it's on your finance agreement and on your V5C registration document as the registered keeper.
Not sure what your agreement allows?
Funder policies on mileage amendments aren't published in any single place, and the wording in a finance schedule can be dense. Our team deals with these funders daily - we can check your specific agreement, ask the right question of the right department, and tell you honestly whether an amendment or an excess mileage payment leaves you better off.
If it's the excess payment, we'll say so. There's nothing in it for us either way.
Should I amend the contract or just pay the excess?
Work out the total cost of each route and compare. An amendment spreads the extra cost across your remaining rentals and gives you certainty; paying excess mileage means one bill at the end, calculated purely from the odometer. Neither is automatically cheaper - it turns on your pence-per-mile rate, how far over you're heading, and how much term is left.
| Consideration | Amend the mileage | Pay excess mileage at the end |
|---|---|---|
| When you pay | Spread across remaining monthly rentals | Single invoice after the vehicle is collected |
| Approval needed | Yes - funder discretion, usually a credit check | No - it's automatic under your existing contract |
| Extra fees | Admin fee common | None beyond the pence-per-mile charge |
| Cost certainty | Fixed from the day you sign | Unknown until hand-back |
| Best when | You're well over pace with a year or more left | You're modestly over, or near the end of the term |
| Risk | Overshooting the other way - unused miles aren't refunded | The bill compounds quietly and lands all at once |
A worked example (illustrative figures only)
Take a 36-month lease contracted at 10,000 miles a year - 30,000 miles in total. Twelve months in, the odometer reads 14,000. At that pace you'd hand back at 42,000 miles: 12,000 over, and at an excess rate of 10p per mile that's a £1,200 bill.
Now say the funder agrees to lift the allowance for the remaining 24 months and the revised rental is £18 a month higher. That's 24 × £18 = £432, plus an admin fee. On those illustrative numbers the amendment is comfortably the cheaper route - and you know the figure now rather than in two years' time. Swap the excess rate to 4p per mile, though, and the excess bill is £480, at which point the two are close enough that the admin fee and the hassle tip it the other way.
Run your own version. Your excess rate is in your agreement, not on a website, and it's the number that decides this.
What does excess mileage actually cost?
It's charged in pence per mile on every mile above your total contracted allowance, and the rate is fixed in your agreement from the day you signed. Rates vary between 3p and 30p per mile depending on the company, with cheaper vehicles at the bottom of that range and premium models at the top.
The calculation is pure arithmetic: miles over allowance × the contracted rate. There's no assessment, no inspector's judgement and no negotiation - it's read straight off the odometer at collection. That's worth separating from the other end-of-contract charge people worry about. Vehicle condition is assessed against BVRLA fair wear and tear standards, and that side is open to discussion. Mileage isn't.
Two practical points. Your delivery mileage - the handful of miles on the clock when the car arrived - is normally excluded, so don't count it against yourself. And under BVRLA guidance, monthly repayments are based on expected mileage, and exceeding that amount results in an excess mileage charge - it isn't a penalty the funder chooses to apply, it's the contract doing what it says.
Can I reduce my mileage and pay less?
Sometimes, but it's the weaker of the two directions and worth going into clear-eyed. Some funders will lower a contracted allowance and reduce the rental for the remaining term; many won't entertain it at all. Crucially, no funder refunds you for the miles you've already paid for and not used.
Think about why. The funder priced the deal at the outset around a residual value based on the mileage you chose. Cutting the allowance in month 30 doesn't give them a materially better car back - you've already used most of the term. That's why any saving comes only from the rentals still to be paid, and why the funders who do allow reductions want to hear from you early rather than late.
If your driving has dropped permanently - you've moved to hybrid working, retired, changed jobs - it's still worth asking. If the drop is temporary, leave it alone. Reducing an allowance you later need puts you straight back into excess mileage territory, and you can't undo it for free.
If the reason your mileage has fallen is that the car no longer fits your life at all, a mileage tweak may be the wrong tool. Our guides on ending a lease early and what it costs and transferring a lease to someone else cover the alternatives properly.
What if the funder says no?
Then you have four realistic options, and none of them is a disaster. You can carry on and budget for the excess mileage bill; you can moderate your driving to claw the total back; you can look at ending the agreement early and starting a new one at the right mileage; or, at the end of the term, you can discuss an extension.
Option 1: budget for it
For most drivers who are modestly over, this is the sensible answer. Work out your projected total miles, multiply the overage by your contracted rate, and set the money aside monthly. A £600 bill you've saved for is an inconvenience. The same bill arriving unexpectedly is a genuine problem.
Option 2: manage the miles back down
Because the assessment is against the total, not each year, a change of habit part-way through genuinely works. If a second household car, a season ticket or a change of job takes 3,000 miles a year off your usage, the total can come back under the line before hand-back.
Option 3: end early and restart at the right mileage
Sometimes the cleanest fix is a different contract altogether - particularly if your mileage has doubled rather than crept up. Early termination charges apply and they aren't trivial, so this only stacks up in fairly extreme cases. Read how to end a car lease early before you go near it.
Option 4: talk about the end of the term instead
An extension is a new agreement, and mileage is set fresh when it's drawn up - which is why some funders would rather discuss that than vary a live contract. See extending your lease at the end.
And if the underlying issue is that a higher rental simply isn't affordable, don't let a mileage amendment become the thing that breaks your budget. Our guide on what to do if you can't afford your payments sets out the support available. Under the FCA's Consumer Duty, regulated firms are expected to support customers in financial difficulty - telling someone early is always better than missing a payment.
Is it different on a business lease?
The mechanics are the same - the funder decides, the rental is recalculated, paperwork is reissued. The differences are in VAT treatment, who signs, and how quickly business mileage tends to change. On Business Contract Hire (BCH), rentals and excess mileage are quoted excluding VAT; on Personal Contract Hire (PCH), the consumer product, both include VAT.
Business mileage moves faster than personal mileage - a new territory, a new contract, a member of staff swapping vehicles - so we'd suggest reviewing the fleet against contracted mileage every six months rather than waiting for a problem. Some funders will also allow mileage to be pooled across a fleet, offsetting the vehicles running under allowance against those running over. It's worth asking about if you run more than a handful of vehicles.
If the car is provided through a salary sacrifice arrangement, the request usually goes through your employer or the scheme provider rather than direct to the funder, because the employer holds the agreement. Our salary sacrifice page explains how those schemes are structured. Worth knowing for company car drivers: according to HMRC's published company car tax rates, zero-emission cars are taxed on 3% of list price for the 2025/26 tax year, rising to 4% for 2026/27 - a mileage amendment doesn't change your Benefit in Kind (BiK) figure, since BiK is calculated on list price and CO2 emissions, not on how far you drive.
Your next steps: a five-minute check
Before you contact anyone, get your own numbers straight. It takes about five minutes and it makes the conversation far more productive - funders respond quickly to a clear, specific request and slowly to a vague one.
The mileage health check
- Read your current odometer and note the date.
- Find your total contracted mileage: annual allowance × contract years.
- Work out your monthly pace: miles driven ÷ months elapsed.
- Project forward: monthly pace × total contract months = your likely hand-back mileage.
- Find your excess rate in the agreement, then multiply the projected overage by it.
- If the answer is uncomfortable and you have a year or more left, ask about an amendment. If you're close to the end, budget for the excess instead.
Not sure what you actually drive in a normal year? Your MOT history on GOV.UK records the odometer at each test, and the gap between two consecutive tests is the most honest annual mileage figure most people will ever get. Useful for your next contract as much as this one.
Frequently Asked Questions
Driving more than you planned? Let's sort it early.
We've arranged thousands of leases across the UK funder panel, and we know which ones will look at a mileage variation and which ones won't. One call usually settles it - and if paying the excess is genuinely the cheaper answer, we'll tell you that instead of selling you a change you don't need.
Call 0333 003 3325Sources
- Leasing: Frequently Asked Questions - British Vehicle Rental and Leasing Association (BVRLA)
- Excess mileage charges explained - Carwow
- Tax on company benefits: company cars - GOV.UK / HMRC
- Check the MOT history of a vehicle - GOV.UK / DVSA
Written by the leasing team at First Vehicle Leasing, an FCA-authorised and regulated broker and BVRLA member with over 25 years' experience arranging personal and business vehicle leases across the UK. Guides are reviewed and updated as funder policy, tax rates and regulation change.
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