Tracking Business Mileage A 2026 Guide to HMRC Rules
Here’s a simple truth about running your own business: any business mileage you don't track is just you giving money away. For freelancers and small business owners across the UK, getting a grip on your mileage isn't just another admin task for HMRC. It's one of the easiest ways to legally slash your tax bill and keep more of your hard-earned cash where it belongs: in your pocket.
Why Tracking Every Mile Is a Financial Game Changer
Let's be real, the thought of logging every single trip can feel like a massive chore. When you're juggling client meetings, dashing out for supplies, or heading to a job site, the last thing on your mind is scribbling down odometer readings. But ignoring this means you’re missing out on one of the biggest tax deductions available. It's a non-negotiable part of keeping your business financially healthy.
This isn’t just about ticking boxes. It’s about realising what a neglected mileage log is actually costing you. Think of it like this: for every 100 business miles you drive, you could be claiming back £45 in tax relief. That might not sound like a fortune, but over a year, it can easily add up to hundreds, if not thousands, of pounds.
The Scale of Business Travel
Just think about how much driving is part of the daily grind for UK businesses. The numbers are huge. Back in 2019-2020, business vans were responsible for an incredible 76% of total van mileage, covering a whopping 35.7 billion vehicle miles. The main reasons? Carrying equipment or tools (68%) and making deliveries or collections (28%). You can explore the full van usage statistics yourself to see just how vital vehicles are to getting work done.
Those figures aren't just abstract stats; they represent countless freelancers and small businesses on the move. Every single one of those miles is a potential claim. If you don't have a record, that value simply vanishes.
When you fail to track business mileage, you are essentially giving HMRC an interest-free loan with no repayment date. A detailed log turns a routine drive into a real financial asset for your business.
It’s About More Than Just the Tax Deduction
Getting your mileage tracking sorted has benefits that go way beyond your tax return. It’s just good business sense.
- Audit-Proof Records: A clean, consistent log is your best friend if HMRC ever comes knocking. It shows you’re professional and proves your claims are solid.
- Accurate Job Costing: If you bill clients for your travel time, precise mileage records mean your invoices are fair and transparent, which helps build trust.
- Smarter Business Decisions: Looking at your travel data can show you where you're wasting time and fuel, helping you plan better routes and tighten up your schedule.
At the end of the day, tracking your mileage is a core business activity, right up there with sending invoices and finding new clients. Consistent and detailed self-employed record keeping is the bedrock of financial success. By finding a simple system to log your journeys, you make sure you claim every penny you’re entitled to, strengthening your bottom line one trip at a time.
Getting to Grips With HMRC Mileage Rules for 2026
Let's be honest, getting your head around HMRC's rules for business mileage can feel a bit daunting at first. But once you break it down, it's really just about two things: picking the right way to claim and knowing exactly what counts as a "business journey."
For most freelancers and small business owners, you’ve got two main options for claiming vehicle expenses. You can either use the simple, flat-rate mileage allowance or go the long way round and claim the actual costs of running your vehicle. Let's unpack what that really means for you.
Simplified Expenses vs. Actual Costs: Which Route Should You Take?
Most people go for HMRC's Approved Mileage Allowance Payments (AMAP). It’s the most popular method for a reason – it’s dead simple. You just claim a set amount for every business mile you drive, without having to hoard receipts for every drop of fuel or new windscreen wiper.
The other path is the actual cost method. This is exactly what it sounds like. You meticulously track every single vehicle-related cost: fuel, MOTs, insurance, servicing, and even how much the vehicle has lost in value (depreciation). You then figure out what percentage of your driving was for business and claim that portion of your total costs. It's more work, but for some, it can definitely pay off.
It's crucial to remember you can't mix and match. The simplified flat rate is designed to cover everything: fuel, insurance, wear and tear, the lot. So, if you're claiming the 45p rate, you can't then try to claim for your annual service or a new set of tyres as a separate expense.
HMRC's approved rates are your go-to reference here. I've put the main ones for the 2025/2026 tax year in a quick table below.
HMRC Approved Mileage Rates 2025/2026
This table shows the official flat rates you can claim for business journeys using your own vehicle.
| Vehicle Type | First 10,000 Business Miles | Over 10,000 Business Miles |
|---|---|---|
| Cars and vans | 45p per mile | 25p per mile |
| Motorcycles | 24p per mile | 24p per mile |
| Bicycles | 20p per mile | 20p per mile |
Essentially, for a car or van, you get 45p per mile for the first 10,000 business miles in a tax year. After that, the rate for any additional business miles drops to 25p per mile.
What Actually Counts as a Business Journey?
This is the part that catches so many people out. HMRC has a very clear line between a legitimate business trip and what it calls an "ordinary commute."
- Business Journeys (You can claim these): Think travelling to a client's office, heading to a one-off project site, driving between two different work locations in a day, or even a quick trip to the post office to mail business packages. Basically, travel to a temporary workplace.
- Ordinary Commute (You can't claim this): This is your regular journey from home to your permanent place of work. If you rent an office or a workshop and drive there every morning, that's your commute, and unfortunately, you can't claim the mileage for it.
The difference is everything. If you work from home, your home is your permanent workplace. So, any trip from your front door to a client meeting is a business journey. But if you have a separate, permanent office, the drive from your home to that office is just a commute.
This little flowchart is a great way to visualise whether a trip is claimable.
As you can see, if the trip is for your business and takes you to a temporary location, you're good to go. Otherwise, it’s a personal journey.
Is It Ever Worth Claiming Actual Costs?
While the 45p flat rate is beautifully simple, it’s not always the most profitable choice. If your vehicle has high running costs, maybe it’s an older van that’s always in the garage or a car that drinks petrol, the actual cost method could leave you better off.
You’ll need to do a bit of homework to figure it out. Add up a year's worth of your vehicle’s running costs (fuel, insurance, repairs, road tax, MOT) plus its depreciation. Then, calculate your business usage as a percentage of your total mileage for the year.
Let’s run a quick example. Say your van's total running costs for the year were £5,000, and you worked out that 80% of your journeys were for business. Your claimable expense would be £4,000. If you only drove 6,000 business miles that year, the flat-rate claim would be just £2,700 (6,000 miles x 45p). In that case, taking the time to track actual costs is a clear winner.
It's also worth knowing how your mileage claims fit into the bigger picture, especially when it comes to things like company car tax implications. This is particularly important if the business owns the vehicle, rather than you personally.
Finally, don’t forget that mileage claims only cover the cost of using the car itself. Other travel expenses are claimed separately on top of your mileage. Things like parking tickets, road tolls, and congestion charges are all valid business expenses. For longer trips, you might also be able to claim for food and accommodation; if you’re curious, our guide on what per diem means for UK businesses is a great place to start.
Building an Audit-Proof Mileage Log
Let’s be honest: every forgotten journey is money you’re just handing over to the taxman. To keep HMRC happy and make sure your claims are rock-solid, your mileage log needs to be detailed, accurate, and kept up-to-date. Think of it as your star witness; without it, your claim simply doesn't exist in an inspector's eyes.
The good news? It’s not rocket science. Creating an audit-proof record just takes a bit of consistency. Get into the habit now, and you’ll save yourself a world of pain when it's time to file your Self Assessment.
The Non-Negotiable Details for Every Trip
Scribbling down “15 miles for client meeting” on a scrap of paper won’t fly. HMRC wants to see a ‘contemporaneous record’, a fancy way of saying you should log your trips as they happen, or at least on the same day.
For every single business trip, your log needs to have these four bits of information:
- The date of the journey. Simple, but absolutely essential for creating a clear timeline.
- The full start and end addresses. Postcodes are your best friend. “My office to client’s office” is far too vague. You need to be specific: “123 Business Lane, London, SW1A 0AA to 456 Enterprise Road, Manchester, M1 1AE.”
- The purpose of the trip. Be clear and direct. Instead of a generic “meeting,” write something like “Client meeting with ABC Ltd to discuss project proposal.”
- The distance travelled. This is the total round-trip or one-way mileage for that specific business journey.
These four details are the bare minimum. Miss one, and you risk having that trip disallowed if HMRC ever takes a closer look.
Your mileage log should tell a believable, verifiable story. Specific postcodes, clear journey purposes, and accurate dates turn a simple list of numbers into a robust, defensible record that leaves no room for doubt.
An Example of a Perfect Mileage Log Entry
So, what does a bulletproof entry look like in the real world? Let’s say you’re a photographer travelling to a wedding shoot.
- Date: 28th October 2025
- Start Address: 25 Oak Street, Bristol, BS1 5TT (Home Office)
- End Address: Highfield Manor, Chipping Sodbury, BS37 6BJ
- Purpose: Wedding photography shoot for Mr. & Mrs. Smith
- Distance: 14 miles
This is perfect. It's specific and has everything HMRC needs. An inspector can easily pop the postcodes into Google Maps to verify the distance, and the purpose is clearly tied to your business. It’s a world away from a vague “Bristol trip, 14 miles,” which would almost certainly raise a red flag.
How Long Must You Keep Your Mileage Records?
Once the tax year is over and you've filed your return, don't rush to the shredder. HMRC has strict rules on how long you need to hang onto your business records, and your mileage logs are no exception.
For most sole traders and small businesses, the magic number is at least 5 years after the 31st January submission deadline for that tax year.
For example, for the 2025/2026 tax year (which ends 5th April 2026), the filing deadline is 31st January 2027. This means you must keep your mileage records for that year until at least 31st January 2032.
Keeping digital copies is by far the easiest way to manage this. Whether you use a spreadsheet or an app, a secure backup is a must. If you're looking for ways to get all your business paperwork in order, our guide on choosing a document management system can help you create a tidy, searchable digital archive. Trust me, it beats rummaging through dusty boxes to find a five-year-old record.
Manual Logs vs Automated Apps
When it comes to actually logging your miles, you’re looking at two main options: the old-school manual route or a modern GPS tracking app. Are you a spreadsheet fan who likes to be in complete control, or would you rather let technology do the heavy lifting?
Both methods can get you the HMRC-compliant records you need. But let's be honest, one is almost certainly going to fit your day-to-day life better than the other. The key is picking a system you'll actually stick with, because every journey you forget to log is money left on the table.
Going Old-School: The Manual Logbook
The traditional way of doing things usually means a notebook in the glovebox or a carefully managed spreadsheet. This method demands the most discipline but gives you total control with zero upfront cost.
The biggest draw? It’s 100% free. All you need is a pen and paper or a basic program like Excel or Google Sheets. You’re also in the driver’s seat with your data: you decide how it's formatted and where it’s kept, no third-party app involved.
The flip side, however, is a big one. Manual logging is a real time-sink and incredibly easy to mess up. It’s so simple to forget to log a trip, write down the wrong odometer reading, or just let it slide for a few weeks. That often leads to a mad dash at the end of the month trying to piece it all together from memory, which is a recipe for mistakes.
The true cost of manual logging isn't what you pay for it; it's the time you waste and the accuracy you sacrifice. One study found that mileage claims often drop by around 25% when people switch to an accurate app, which shows just how much guesswork and rounding can inflate manual logs.
The Modern Fix: Automated GPS Apps
Automated mileage apps use your phone’s GPS to quietly track your journeys in the background. When you get a spare moment, you just open the app and classify your recent trips as business or personal, often with a simple swipe. It’s a system built from the ground up for accuracy and convenience.
The advantages are pretty compelling:
- Pinpoint Accuracy: GPS tracking logs the exact route and distance. This gets rid of the guesswork and creates a solid, time-stamped record for every single trip you take.
- Huge Time Savings: The app does all the tedious work. You don't have to remember to scribble down odometer readings before you turn the engine off or spend hours wrestling with a spreadsheet.
- Audit-Proof Records: Most apps can generate clean, detailed reports that include everything HMRC wants to see, making your claim much easier to defend if they ever ask questions.
Of course, this 'set it and forget it' approach usually comes with a price tag. The best apps typically have a monthly or annual subscription fee, which is something to factor into your budget. When weighing your options, it's also worth noting how dedicated Sales Route Planning Software can not only track your mileage but also help optimise your routes, saving you even more time and fuel.
Making the Right Choice for Your Business
So, which way should you go? Sometimes seeing it all laid out side-by-side makes the decision much clearer.
Comparing Mileage Tracking Methods
This table breaks down the key differences between the two approaches to help you decide.
| Feature | Manual Logs (Spreadsheet/Notebook) | GPS Mileage Apps |
|---|---|---|
| Accuracy | Prone to errors, rounding, and forgotten trips. | Highly accurate with GPS-verified data. |
| Convenience | Time-consuming; requires daily discipline. | ‘Set it and forget it’ convenience; minimal effort. |
| Cost | Free. | Typically involves a monthly or annual subscription fee. |
| Audit-Readiness | Can be compliant if perfectly maintained, but often questioned. | Generates detailed, time-stamped reports that are easily defensible. |
Ultimately, there's no single right answer. If you're a freelancer who only makes a couple of local business trips a month, a well-organised spreadsheet could work just fine. But if you’re a consultant, a tradesperson, or anyone else who’s constantly on the road, the small monthly cost for an app is almost always worth it for the time you'll save and the peace of mind that you're claiming every last mile.
Getting Your Claims Sorted with FreeAgent and Receipt Router
Okay, so you've been diligently tracking your miles. Great stuff. But a logbook full of journeys is only half the battle. Now you need to turn those numbers into actual tax savings without pulling your hair out.
For anyone using FreeAgent, getting your mileage claim sorted is pretty simple. But to really maximise your deductions, you need to think beyond just the miles you’ve driven. Let's walk through how to handle all your vehicle-related expenses, from mileage to those pesky parking and toll receipts, by combining FreeAgent with a clever little tool called Receipt Router.
Logging Your Mileage in FreeAgent
First things first, let's get those miles logged. FreeAgent has a specific area just for mileage claims, so you’re not trying to fudge it as a generic expense. It’s built to use HMRC's approved rates, which means it does the maths for you and correctly deducts the amount from your profits for tax.
It’s as straightforward as it looks.
As you can see, you just pop in the date, a quick note about the journey, and the distance. That's it. FreeAgent takes over, applying the 45p and 25p per mile rates, and your accounts are updated instantly. You get a clear, real-time picture of how your travel is impacting your tax bill.
Beyond Mileage: Nailing Every Travel Cost
Here’s the thing: your car expenses aren't just about the miles. Every time you pay for parking, cross a toll bridge, or even pay for a car wash before a client meeting, that’s a legitimate business expense. The problem? They usually come as tiny paper receipts that love to get lost in a wallet, a glovebox, or the wash.
This is where a bit of automation can be a complete game-changer. Manually typing in dozens of £3 parking receipts is a soul-destroying task, and it’s so easy to miss them. A lost receipt is literally money down the drain.
Think about it: every unclaimed parking ticket or toll fee is a small but direct hit to your profit. An automated system makes sure these little wins are never missed, and they really do add up to significant tax savings over a year.
By connecting a tool like Receipt Router to your FreeAgent account, you can build a system that catches every single one of these costs without you having to do any of the boring data entry.
How Receipt Router Automates Your Expenses
Receipt Router is designed purely to kill the headache of receipt admin. It gives you a unique email address for your business. When you get a digital receipt, like an online parking confirmation from JustPark, you just forward it to that address. Even better, you can set up auto-forwarding rules in your email to make it completely hands-off.
Once the email lands, the magic happens:
- It reads the receipt automatically, pulling out the key details like the supplier, date, and total amount.
- It cleverly categorises the expense in FreeAgent, maybe as 'Travel' or 'Motor Expenses'.
- It attaches the digital receipt to the transaction in FreeAgent, creating a perfect, HMRC-friendly record.
And this isn't just for digital stuff. Snap a photo of a paper receipt from a parking machine, email it to your unique address, and the exact same thing happens.
Let's picture a typical week out on the road:
- Monday: You pay for a couple of hours' parking at a client’s office. You snap a picture of the ticket with your phone and email it in.
- Wednesday: You get an email confirmation after paying the Dartford Crossing charge online. You forward it.
- Friday: You grab a coffee and a sandwich at a motorway service station while on the way to a meeting. You get a paper receipt, snap it, and email it.
Without touching your laptop or manually entering a single thing, all three of those expenses pop up in your FreeAgent account, correctly filed and with the proof attached. You’ve just saved yourself time and made sure you won’t forget to claim those costs later.
You can learn more about how the FreeAgent integration works and how it helps you build a flawless set of books.
This approach gives you a complete, up-to-the-minute view of all your business travel costs, not just the mileage. It turns expense management from a tedious chore into something that just happens quietly in the background. Combine your diligent mileage log with automated receipt capture, and you’ll be certain that every last penny is claimed, keeping your accounts tidy and your tax bill as low as it can be.
Got a Few Lingering Mileage Questions?
We’ve covered the main rules, but let's be honest, when it comes to HMRC, the real confusion is always in the specific, slightly fiddly scenarios. It's completely normal to have a few "what if" questions floating around.
You're not the only one asking. Here are some straightforward answers to the questions we hear all the time from freelancers and small business owners across the UK.
Can I Claim for Driving from My Home to My Office?
This is probably the number one question we get, and the short answer is almost always no. That daily trip from your front door to a permanent workplace is what HMRC calls an 'ordinary commute', and unfortunately, it's not a tax-deductible expense. It’s just seen as personal travel.
But, and it’s a big but, the rules are totally different if your home is your main office. If you're a freelance consultant working from home, any journey you make to see a client, visit a supplier, or go to a temporary site is classed as business travel. The mileage is 100% claimable. A workplace is usually considered 'temporary' if you'll be working there for less than 24 months.
The whole thing hinges on the idea of a 'permanent workplace'. If your home is your operational base, trips to other business locations are fair game. If you have a separate office you travel to regularly, that journey is on your own time.
What if I Forget to Log a Couple of Business Trips?
Ah, the one that trips everyone up. If you forget to log a journey, you simply can't claim for it. End of story. This is precisely why getting into a solid tracking habit is so critical. HMRC demands a ‘contemporaneous record’, a fancy way of saying you need to log the trip at or very near the time you actually made it.
You can't just pluck a number out of thin air at the end of the tax year and hope it flies. An inspector would throw out a claim based on guesswork in a heartbeat. This is honestly one of the strongest arguments for using a GPS tracking app; it logs everything automatically, so you just have to classify the trips later. No more missed claims.
Do I Need to Keep Fuel Receipts if I'm Using the Flat Rate?
Nope! If you're claiming mileage using the approved HMRC flat rate (the 45p/25p per mile method), you don't need to hang on to every single fuel receipt. That rate is designed to cover all your running costs in one go.
It includes everything from:
- Fuel and oil
- Insurance
- Servicing and repairs
- Road tax and MOTs
- Depreciation (the natural drop in your car's value)
All you need is your detailed mileage log. However, and this is important, you absolutely must keep receipts for any other travel costs like parking fees, road tolls, and congestion charges. You can claim for those as separate expenses on top of your mileage allowance.
Can I Switch Between the Mileage Rate and Actual Costs Methods?
Yes, but it's a one-way street, and the rules are very specific.
If you start by claiming the actual costs for a vehicle (adding up every fuel receipt, repair bill, etc.), you're stuck with that method for as long as you use that car or van for the business. You can't decide to switch to the simpler mileage rate next year for that same vehicle.
On the other hand, if you start with the simpler mileage rate (45p/25p), you have the option to switch over to the actual cost method in a later tax year if your sums show it’d be better for you. But once you've switched, you're locked in. The choice resets only when you get a new vehicle, giving you a fresh start.
Stop losing money on unclaimed expenses and wasting hours on admin. Receipt Router connects directly to FreeAgent to automate your receipt management, from mileage-related costs like parking and tolls to every other business purchase. Forward an email or snap a photo, and let us handle the rest.