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COST SAVER PODCAST • Ep. 122

UK Self-Employed Mileage Claims: HMRC's 45p Rate vs Actual Cost — Which Saves You More?

Hosted byAsad & Angela(AI-generated voices)
21 August 202616 min listenSeason 1 • Ep. 122

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Article:UK Self-Employed Mileage Claims: HMRC's 45p Rate vs Actual Cost — Which Saves You More?Interactive Tool:UK Self-Employed Mileage Calculator

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UK Self-Employed Mileage Claims: HMRC's 45p Rate vs Actual Cost — Which Saves You More?

Now Playing · Ep. 122

UK Self-Employed Mileage Claims: HMRC's 45p Rate vs Actual Cost — Which Saves You More?

The Cost Saver Podcast

00:000%00:00

AI-generated voices. For information only - not financial guidance.

Key moments

1Introduction to UK Mileage Claims
0:00
2HMRC's 45p Rate: Pros and Cons
2:57
3Actual Cost Method: Maximizing Deductions
4:59
4Common Mistakes and Record Keeping
7:55
5Choosing the Right Mileage Claim Method
9:27
6Final Advice and Actionable Steps
14:52

Key Takeaways from This Episode

  1. 1The 45p mileage rate isn't always the cheapest option, especially for newer, expensive, or high-mileage vehicles.
  2. 2Actual cost method allows claiming depreciation (capital allowances) and finance interest, significantly boosting deductions.
  3. 3Once a method is chosen for a vehicle, you're locked in, so make an informed decision upfront to avoid overpaying tax.
  4. 4Meticulous record-keeping is crucial for both methods; HMRC can impose penalties for careless claims.
  5. 5Evaluate your specific car, mileage, and business use to choose the most financially beneficial claim method.

Episode Transcript

Asad & Angela — AI-generated hosts · click to collapse

v
A
[Angela]:
Welcome to Cost Saver Conversations. I'm Angela, and I ask the practical questions so you can quickly understand what matters. Today, I'm joined by Asad.
A
[Asad]:
Hi Angela. We are unpacking "UK Self-Employed Mileage Claims: HMRC's 45p Rate vs Actual Cost — Which Saves You More?" today and tying it back to the wider Cost Saver ecosystem, including tools like UK Self-Employed Mileage, so you can turn insights into action quickly.
A
[Angela]:
Just a heads-up before we dive in: we are your synthetic hosts. We are great with numbers, but as AI, we can sometimes be confidently wrong. Think of us as the digital versions of your most knowledgeable, slightly caffeinated friends.
A
[Asad]:
Exactly. Treat this chat as a smart estimate only, not as professional financial guidance. Always check important details with official sources or a qualified expert before making any big decisions.
A
[Angela]:
Welcome back, everyone. So today we're getting into something that I think — honestly, I think most self-employed people just kind of pick once and never look at again. Mileage claims. Asad, this is one of those things, right? It sounds dead simple on the surface, but there's actually quite a lot going on underneath.
A
[Asad]:
Yeah, it's — it's one of those topics where people just default to what they've heard, you know? Someone at a networking event or their mate down the pub says, 'Oh, you just claim 45p a mile,' and they never question it. And, um, look, that can genuinely cost people real money.
A
[Angela]:
Because everyone treats it like gospel. 'It's 45p a mile, done.' Like it's not even a decision.
A
[Asad]:
Right. And I mean, it usually is the easier option, I'll give it that. But easier isn't always cheaper. And for a lot of drivers — particularly if you're running a newer car, or a big diesel, or even an electric vehicle now — the flat rate can leave, um, quite a bit of money on the table. Every single tax year.
A
[Angela]:
So we're not talking about, like, a tenner here and there?
A
[Asad]:
No, no, no. Not at all. For a sole trader doing, say, 12,000 business miles a year in a more expensive car, the difference between the two methods can be — and this is the extra taxable profit we're talking about — anywhere from £1,500 to £3,000. Under the wrong method.
A
[Angela]:
Oh! Okay, that's — that's more than I expected.
A
[Asad]:
Yeah. So if you're on the basic rate, that's £300 to £600 in tax you've overpaid. And if you're a higher-rate taxpayer—
A
[Angela]:
—it's double that.
A
[Asad]:
Exactly. £600 to £1,200. Every year. For the life of that vehicle. And here's the thing that really makes this decision matter — once you pick a method for a particular vehicle, you're generally stuck with it until you change the car. So getting it wrong at the start... [exhales] yeah, that stings for a while.
A
[Angela]:
Right. That's a big one. Okay, so let's actually break these two methods down. Start with the simple one — the 45p rate.
A
[Asad]:
Sure. So, the simplified expenses scheme. It's — I mean, it's about as straightforward as tax gets, honestly. HMRC sets a flat rate that's meant to cover everything: fuel, insurance, servicing, MOT, road tax, repairs, even depreciation. You just multiply your business miles by the rate and that's your claim. You don't claim any of those things separately.
A
[Angela]:
And the rates are?
A
[Asad]:
For cars and vans, 45p per mile for the first 10,000 business miles in a tax year. Then it drops to 25p per mile after that. Motorcycles are 24p, bicycles 20p. But — and this is the bit that always gets a reaction — those rates haven't changed since the 2011–12 tax year.
A
[Angela]:
Wait, sorry — 2011?
A
[Asad]:
Yep.
A
[Angela]:
That's... [laughs] I mean, think about what fuel cost in 2011. Insurance, car prices — everything's gone up massively since then.
A
[Asad]:
Exactly. Which is why the 45p rate, which sounds quite generous when you first hear it, isn't always. It tends to work well for — okay, let me think about this — people with older, cheaper, fuel-efficient cars. Sole traders doing maybe under 8,000 business miles a year. And, uh, people who just genuinely hate paperwork. [chuckles] Which, you know, is a legitimate reason.
A
[Angela]:
Ha, fair enough. I feel seen. [laughs] But who does it actually hurt?
A
[Asad]:
So, owners of newer or premium vehicles, where depreciation alone might be more than the flat rate covers. Anyone running a large diesel SUV or a van or a 4x4. High-mileage drivers who blow through the 10,000-mile threshold and suddenly drop to 25p. And — this one surprises people — electric vehicle drivers, because their purchase costs are high but their running costs are low, so the maths gets kind of... weird.
A
[Angela]:
Hmm, I hadn't thought about it like that. The EV thing is interesting.
A
[Asad]:
Yeah, it catches people out.
A
[Angela]:
Okay. So that's the simplified method. The other option is actual costs, which sounds like it involves a lot more effort.
A
[Asad]:
It does, yeah. I'm not going to pretend otherwise. It demands proper record-keeping. But what it means is you're claiming the business portion of every genuine cost of running your vehicle. And — this is the key thing — there's more you can include than most people realise.
A
[Angela]:
Go on.
A
[Asad]:
So you've got fuel, or electricity if you're charging an EV. Road tax, MOT. Insurance — specifically the business-use portion. Servicing, repairs, parts like tyres and brakes. Breakdown cover. Even cleaning and valeting. Parking and tolls for business trips. And then the big one—
A
[Angela]:
—the car itself?
A
[Asad]:
Right. Capital allowances. Which is essentially how you claim for depreciation. HMRC lets you write down a percentage of the vehicle's value against your tax bill each year. And the rate depends on CO2 emissions, so electric and low-emission vehicles get the most favourable treatment. This is where the actual method really pulls ahead for expensive cars.
A
[Angela]:
So depreciation is kind of the hidden weapon here.
A
[Asad]:
It really is. I mean, a new car loses value so fast. Industry figures suggest sort of 15 to 35 percent in the first year, and about half its value by year three. So if your business bought a £25,000 car and three years later it's worth £15,000, that £10,000 — that's a real cost. But the 45p rate barely acknowledges it. Capital allowances let you recover a chunk of that against your tax bill. For a higher-rate taxpayer, we're talking thousands over the life of the vehicle.
A
[Angela]:
That's significant. What else do people tend to miss?
A
[Asad]:
Finance interest is a massive one. If you've got your car on PCP or hire purchase, the interest element — not the capital repayments, just the interest — that's claimable proportionally. And it gets missed constantly. It can easily be worth £400 to £800 a year on a typical family car.
A
[Angela]:
Oh, that's actually — yeah, I can see how people wouldn't think of that.
A
[Asad]:
And then there's the insurance uplift for business use. Adding business cover to your policy typically pushes the premium up by anywhere from £50 to £300 a year. That uplift is a genuine business cost, but you can only claim it under the actual method. Well — more accurately, the business proportion of your total premium.
A
[Angela]:
Right.
A
[Asad]:
And parking and tolls. Small individually, but — a city-based tradesperson could easily rack up £500 to £1,000 a year. Those are actually claimable under both methods, they're not covered by the 45p rate, but people just forget to log them. Which is why, um — pro tip — get yourself a dedicated business bank card for every vehicle-related purchase. No matter how small. Your future self will thank you at Self Assessment time.
A
[Angela]:
That's a really good tip, actually. Okay, so let's talk mistakes, because I imagine there are some classics.
A
[Asad]:
Oh, loads. [laughs] So the first one — mixing methods. You cannot claim 45p per mile and then also claim your fuel receipts and servicing bills. It's one or the other for a given vehicle. People try it, and it doesn't fly.
A
[Angela]:
Right.
A
[Asad]:
Then there's forgetting the 10,000-mile drop-off. The rate falls from 45p to 25p after 10,000 business miles, and high-mileage drivers who don't do the maths just assume they're getting 45p all the way through. They're not.
A
[Angela]:
What about the commuting thing? I know that catches people.

Episode Notes & Resources

v

Information only. This content is not financial or legal guidance.

Credits: The Cost Saver Podcast team, with AI-assisted production and editorial review.

Full Written Guide: UK Self-Employed Mileage Claims: HMRC's 45p Rate vs Actual Cost — Which Saves You More?

This podcast episode is based on the companion article for deeper context and references.

Read the full written guide: UK Self-Employed Mileage Claims: HMRC's 45p Rate vs Actual Cost — Which Saves You More?

Tools Mentioned in This Episode

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FAQ

Q: What is this episode about?

A: This episode covers: mileage claims, self-employed. It explains the most practical ideas first, highlights common mistakes, and gives clear next steps you can apply to your own situation without needing specialist knowledge.

Q: How long is this episode?

A: This episode is approximately 16:51. You can use key moments to jump directly to sections, revisit the parts that matter most to you, and turn the guidance into a short action list after listening.

Q: Can I read this instead?

A: Yes. Check the "Related blog article" section for the full written version with links and references. The written format is useful if you prefer scanning, comparing options line by line, or sharing specific points with family members.

Q: Can I listen on other platforms?

A: Yes. Use Spotify, Apple Podcasts, Amazon Music, and YouTube links on this page when available. Platform availability can vary by processing time, so if one link is delayed, the web player and companion blog still provide full access.

Q: What other topics are covered?

A: hmrc, 45p rate, actual costs. These are connected to the main discussion so you can understand trade-offs, avoid one-sided decisions, and choose actions that are realistic for your budget and timeline.

Q: Which tools should I use after listening?

A: Start with: Self-Assessment Payment Schedule Calculator UK, UK Pension Carry Forward Calculator, UK Import Duty Calculator. You can find them in the Related tools section below. A good approach is to run one baseline scenario first, then test two or three alternatives so your final decision is based on numbers, not guesswork.

Q: Are there related blogs I can read next?

A: Yes. This episode links to 8 related blog articles for deeper context. Reading one follow-up article is often enough to clarify assumptions and help you build a practical weekly or monthly plan.

Topics covered

mileage claimsself-employedhmrc45p rateactual coststax savingsrecord keepingcapital allowancesvehicle expensessimplified expenses

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