Which NHS Expenses You Can't Claim: Common Tax Relief Myths

Why a list of what you can't claim is more useful than another list of what you can

Nearly everything written about NHS tax rebates — much of it produced or promoted by commercial rebate companies with an obvious incentive to encourage as many claims as possible — focuses on what you can claim. That's not wrong exactly, but it's one-sided, and one-sided advice is exactly how honest, well- meaning NHS staff end up submitting a claim that includes something HMRC doesn't actually allow, which can slow down or jeopardise the genuinely eligible parts of the same claim.

This guide takes the opposite approach on purpose. Every item below has been checked against current HMRC rules rather than assumed, and we've been explicit about the handful of areas that are genuinely nuanced rather than a flat yes-or-no, because pretending otherwise would risk giving you confident-sounding advice that turns out to be wrong for your specific situation. Getting this list right is the entire point of this page — an NHS tax guide that gets a "can't claim" rule backwards isn't just unhelpful, it can cost a reader a rejected claim or, worse, an accidental duplicate claim that looks like something more serious than an honest mistake.

Myth 1: "I can claim my journey to work because it's for my job"

The reality: ordinary commuting — travel between your home and your normal, permanent workplace — is one of the most well-established exclusions in UK employment tax law, and it applies to NHS staff exactly as it applies to everyone else. It doesn't matter how far you travel, how much it costs, or how essential the job itself is; the cost of simply getting to the place you normally work is treated as a personal cost of living where you live and working where you work, not a cost created by the job itself.

Where this genuinely changes is business travel between workplaces during your working day or as part of a role that doesn't have one single permanent base — for example community nursing, district roles, or a rotational post that requires you to work across multiple sites. HMRC distinguishes between a permanent workplace (broadly, somewhere you attend regularly and are expected to for a substantial period) and a temporary workplace you attend for a limited task or period. Travel to a genuinely temporary workplace, or between two workplaces in the same working day, can be claimable; the daily trip to your one normal base is not.

• ✕ Not claimable: your normal daily commute from home to your usual ward, department or base, however long or expensive it is
• ✕ Potentially claimable: travel between two different workplaces during the same working day
• ✕ Potentially claimable: travel to a genuinely temporary workplace you attend for a limited period, rather than your normal permanent base

Myth 2: "My work clothes count as a uniform because I only wear them at work"

The reality: HMRC's test isn't whether you only wear something for work — it's whether the item is a specific, recognisable uniform rather than ordinary clothing. The leading legal principle here (from the well-known case Mallalieu v Drummond) is that clothing which could reasonably form part of an everyday wardrobe has an inherent personal element — providing warmth and decency — even if you genuinely never wear it outside your job. Plain black trousers, ordinary shoes, a jumper, or a plain top worn under scrubs generally fail this test, no matter how strict your personal rule is about only wearing them for shifts.

What does pass the test is clothing that's genuinely distinctive as a uniform — permanently branded or visibly identifiable as work-specific, such as NHS scrubs, tunics, or a uniform bearing an integral, non-removable logo or design. This is exactly the category the standard uniform laundering flat rate is built around, and it's why that allowance covers the laundering cost of a genuine uniform, but not the cost of buying or maintaining ordinary clothing you happen to wear alongside it.

• ✕ Not claimable: plain trousers, shoes, jumpers or other ordinary clothing, even if you only wear them for shifts
• ✕ Claimable (via the flat-rate allowance): laundering a genuine, distinctive required uniform — scrubs, tunics, or similar
• ✕ The key test is distinctiveness, not how exclusively you personally use the item for work

Myth 3: "I can claim my lunch and childcare costs because my shift pattern makes them unavoidable"

The reality: HMRC's position on food during a normal working day is consistent and long-standing — the need to eat isn't a cost created by your employment, it's something you'd incur regardless of whether you were working, so ordinary meal costs during a standard shift aren't an allowable employment expense. This applies even where NHS shift patterns (long days, unsociable hours, limited access to affordable food on site) make eating during a shift genuinely more difficult or expensive than it would be on a normal day off. The narrow exception is subsistence incurred during genuine business travel away from your normal base — a different and much rarer circumstance than an ordinary working day at your usual workplace.

Childcare costs follow broadly the same logic: needing childcare so that you can attend work is generally treated as a personal, domestic cost of living your life and working your job, not a cost incurred wholly, exclusively and necessarily in performing your duties — the general test HMRC applies to employment expenses. Some employers offer separate schemes (such as salary-sacrifice childcare vouchers or workplace nurseries) that provide tax and National Insurance advantages in a completely different way, but that's a distinct employer-provided benefit, not a personal expense claim you make to HMRC.

• ✕ Not claimable: food and drink during a normal working day at your usual workplace, however inconvenient your shift pattern makes it
• ✕ Not claimable: everyday childcare costs that let you attend work
• ✕ Different category entirely: subsistence during genuine, rare business travel away from your normal base, and any separate employer-run childcare scheme

Myth 4: "I can claim it even though my trust already paid me back for it"

The reality: this isn't a grey area or a technicality — if your employer has already reimbursed you in full for a cost, claiming tax relief on it again from HMRC would mean getting relief on money you were never actually out of pocket for. It's worth stating plainly rather than glossing over: this is a duplicate claim, and depending on how it happened, could be treated as a false claim rather than a simple error, particularly if it's repeated or involves a meaningful amount.

Where this genuinely gets useful, and where a lot of eligible relief goes unclaimed, is partial reimbursement — most commonly mileage. If your trust pays you a mileage rate that's lower than HMRC's approved rate for business travel, you can claim tax relief on the difference between the two, not the full HMRC rate stacked on top of what you already received. Get this distinction right: claim the genuine shortfall, never the full amount again on top of a reimbursement you've already had.

• ✕ Not claimable: anything your employer has already reimbursed you for in full
• ✕ Claimable: only the genuine shortfall where your employer reimburses less than HMRC's approved rate (mileage is the most common example)
• ✕ Always state clearly on your claim what's already been reimbursed, so HMRC can see you're claiming only the gap

Get notified about new FrontlinePay Pro tools

We're building deeper NHS pay, pension and tax-relief tools — join the list to hear when new ones launch.

Notify me

Myth 5: "Any training course I pay for myself is tax-deductible"

The reality: this is genuinely more nuanced than a flat yes or no, and worth reading carefully rather than assuming either way. HMRC's traditional approach treats training that updates or maintains skills you already use in your current role (routine CPD, mandatory refreshers, exam resits within your existing scope of practice) as more likely to be an allowable expense of that role. Training that gives you an entirely new skill or qualification — one that changes what you're qualified to do rather than maintaining what you already do — has traditionally been treated more like a capital cost tied to your future earning potential, and therefore not claimable as a straightforward employment expense.

HMRC has itself cautioned against reading this too narrowly, and the actual answer depends on the specific content of the course and how directly it relates to your current duties — which is exactly why we're not giving you a confident blanket rule here. If you're considering claiming for anything beyond routine CPD or mandatory training within your existing role, check the specific facts of your course against current HMRC guidance, or take advice, rather than assuming it's covered.

• ✕ More likely claimable: training that updates or maintains skills you already use in your current NHS role
• ✕ Less likely claimable: a course that gives you an entirely new qualification or skill you didn't previously have
• ✕ Genuinely fact-dependent: check your specific course against current guidance rather than assuming either way

Myth 6: "I can claim the full cost of my DBS check"

The reality: this one is easy to overstate. There is a specific, established tax relief connected to the DBS Update Service subscription — the smaller ongoing annual fee that keeps an existing DBS certificate current — where you personally pay it and your employer doesn't reimburse it; in that case you can get tax relief on the subscription amount, not a full refund of it. If your employer already pays or reimburses the Update Service fee (increasingly common across the NHS), you're not entitled to also claim it. The larger, one-off cost of an initial DBS check itself is a different cost from the Update Service subscription, and whether any relief applies to it depends on your specific circumstances — don't assume the full check fee is automatically deductible just because a related, smaller subscription fee sometimes attracts relief.

• ✕ Distinct from a full refund: DBS Update Service relief is tax relief on the subscription cost, not the whole amount back
• ✕ Not claimable if your employer already pays or reimburses the fee
• ✕ The main, larger DBS check fee is a separate cost from the Update Service subscription — check your specific circumstances rather than assuming either is automatically covered

Myth 7: "I can claim the full mileage rate as well as what my trust pays me"

The reality: you can only claim the shortfall — the gap between HMRC's approved mileage rate and whatever per-mile amount your trust actually reimburses you. Claiming the full approved rate on top of a mileage payment you've already received would mean being paid twice for the same miles, once by your employer and once through tax relief calculated as if you'd received nothing at all. This misunderstanding is common precisely because trusts do often pay something toward mileage, just usually less than HMRC's approved rate — which is exactly the situation the shortfall relief exists for.

• ✕ Not claimable: the full HMRC-approved mileage rate stacked on top of mileage your trust already paid you
• ✕ Claimable: only the difference between HMRC's approved rate and what your trust actually reimbursed per mile
• ✕ This only applies to genuine business travel between workplaces — not your ordinary commute (see Myth 1)

Myth 8: "I can backdate as far as I like if I've genuinely never claimed before"

The reality: however long you've genuinely been eligible and simply never got round to claiming, HMRC's backdating window for this type of claim is generally 4 tax years plus the current one — no more, regardless of the reason for the delay. If you've been an eligible NHS employee for a decade and never claimed, you can typically still only recover the most recent 4 years plus the current year; earlier years are out of time. This is exactly why it's worth claiming sooner rather than later once you know you're eligible — every year you wait without claiming is a year that eventually drops permanently out of the backdating window.

• ✕ Not claimable: tax years earlier than 4 years before the current one, regardless of how long you've been eligible
• ✕ Claimable: the current tax year plus the 4 previous ones, if you were eligible throughout

Quick reference: can I claim it?

A fast summary of everything above, for when you just need the headline answer:

• • Ordinary commute from home to your normal workplace — No
• • Travel between two workplaces, or to a genuinely temporary workplace — Often yes
• • Laundering a genuine, distinctive required uniform — Yes (flat rate)
• • Everyday clothing worn alongside your uniform — No
• • Food and drink during a normal working day — No
• • Childcare so you can attend work — No
• • Anything your employer already reimbursed in full — No, this is a duplicate claim
• • The shortfall where your employer pays less than the HMRC mileage rate — Yes
• • The full mileage rate stacked on top of what your employer already paid — No
• • Training that updates skills you already use in your current role — Usually yes
• • A course giving you an entirely new qualification — Fact-dependent, often no
• • DBS Update Service subscription you pay yourself, unreimbursed — Partial relief, yes
• • The full one-off DBS check fee — Not automatically, check your circumstances
• • Claims more than 4 tax years plus the current one ago — No

Why you can rely on this page

• ✓ Every rule above has been checked against current, verified HMRC guidance and established case law (including the Mallalieu v Drummond clothing test), not assumed or copied from another rebate-company page
• ✓ Where a rule is genuinely fact-dependent rather than a flat yes/no — new-qualification training and DBS costs are the clearest examples — we say so explicitly rather than giving a false sense of certainty
• ✓ We separate what's never claimable from what's only partially claimable (the mileage and DBS shortfall cases), because blurring those two together is one of the most common ways an honest claim goes wrong
• ✓ This guide is not affiliated with HMRC, NHS England or DHSC, and isn't tax advice — for your own exact position, HMRC's current guidance is the authoritative source

Related tax relief guides

This guide is provided for general information only, is not affiliated with HMRC, the NHS or the Department of Health and Social Care, and is not tax advice — for your own exact eligibility, check HMRC's current guidance on GOV.UK or contact HMRC directly.

Frequently asked questions

Frequently asked questions

Why do so many NHS staff believe they can claim things HMRC doesn't actually allow? +

A big part of it is that most content on NHS tax rebates — much of it published or promoted by commercial rebate companies — focuses heavily on what you can claim, because that's what generates claims (and their fee). What you can't claim is far less commonly covered honestly, so myths spread through word of mouth, staff-room conversation and forum threads without much correction. Genuine, well-established HMRC rules like the ordinary commuting exclusion or the everyday-clothing test aren't NHS-specific quirks — they apply to employees generally — but because NHS staff hear a lot about uniform and mileage relief in the same breath, it's easy to assume adjacent costs are covered when they aren't.

If I claim something I'm not actually entitled to, what actually happens? +

At minimum, an ineligible item is likely to be queried, adjusted or rejected when HMRC reviews the claim, which can delay the rest of a genuinely eligible claim submitted alongside it. Where an error is a one-off honest mistake about an ambiguous rule, HMRC's normal process is simply to correct it. Deliberately or repeatedly claiming for things you know aren't eligible — or claiming twice for something your employer already reimbursed — is a different matter and can be treated more seriously, since it isn't a grey area once you've been reimbursed or once the type of expense is clearly excluded. The straightforward way to avoid any of this is to stick to genuinely eligible costs and keep the evidence HMRC currently expects for each one.

Is travel between two different hospital sites the same as commuting? +

No, and this is one of the most useful distinctions to get right. Ordinary commuting — home to your normal, permanent workplace — is not claimable. But travel between two workplaces during your working day (for example a community-based role or a rotational post genuinely requiring you to work across more than one site) is generally treated as business travel, not commuting, and can be claimable. The test HMRC applies is essentially about whether a location is your permanent workplace or a temporary one you attend for a limited period or portion of your time — if you're unsure which category your specific pattern of site visits falls into, it's worth checking your position against HMRC's guidance on permanent versus temporary workplaces rather than assuming either way.

My scrubs are provided by the trust but I still wash them myself — can I claim the uniform allowance? +

Generally yes for the laundering element — the flat-rate uniform allowance specifically covers the cost of you personally washing and maintaining a required uniform, regardless of whether the uniform itself was provided free or you had to buy it. What you can't do is claim for the cost of everyday clothing worn alongside or instead of that uniform (plain black trousers, ordinary shoes, a jumper) just because you also wear it to work — those items fail HMRC's distinctiveness test even if you never wear them outside your job.

Can I claim for lunch on a normal working day if my shift means I can't get home to eat? +

Generally no. HMRC's long-standing position is that the need to eat during a normal working day isn't a cost caused by your job — you'd need to eat regardless of whether you were at work — so ordinary meal costs during a standard shift, including long NHS shifts, aren't treated as an allowable employment expense, even though the shift pattern itself might make it genuinely harder to eat cheaply or conveniently. The narrow exception that does sometimes apply is subsistence during genuine business travel away from your normal base, which is a different and more specific circumstance than eating during a normal working day at your usual workplace.

Can I claim the cost of a DBS check? +

This is more limited than most people assume. There's a distinct tax relief for the DBS Update Service subscription fee (the smaller annual fee for keeping an existing certificate current) where you pay it yourself and your employer doesn't reimburse it — but that relief is on the subscription cost, giving you tax relief on that amount rather than the full amount back, and if your employer already pays or reimburses it, you can't also claim. The larger, one-off DBS check fee itself is a different cost, and whether any relief applies depends on your specific circumstances and who's paying — check current HMRC guidance rather than assuming the whole cost is automatically claimable.

Can I claim tax relief on a course that gives me a completely new qualification? +

This is a genuinely nuanced area rather than a flat no. HMRC's traditional position treated costs of acquiring an entirely new skill or qualification as a capital-type cost tied to your future earning capacity rather than an expense of your current role, and therefore not claimable — as distinct from training that updates or maintains skills you already use in your existing job, which is more likely to qualify. HMRC has also acknowledged this shouldn't be read too narrowly, and the answer can depend on the specific facts of the course and how directly it relates to your current duties. If you're claiming for anything beyond routine CPD, mandatory training or exam resits within your existing role, it's worth checking the specific facts of your course against current guidance rather than assuming either way.

If my trust pays some mileage but less than the HMRC rate, can I claim the full rate for myself? +

No — you can only claim tax relief on the shortfall, meaning the gap between HMRC's approved mileage rate and whatever your trust actually paid you per mile, not the full approved rate stacked on top of what you already received. This is a common and understandable point of confusion, but claiming the full rate again after already being paid a lower rate would effectively be double-counting part of your journey costs.

Can I go back more than 4 tax years if I've genuinely never claimed before? +

No — HMRC's backdating window for this type of claim is generally 4 tax years plus the current one, and this applies regardless of how long you've actually been eligible or how long you've gone without claiming. If you've been eligible for, say, eight years and never claimed, you can typically still only backdate to the most recent 4 years plus the current year — the earlier years are out of time and can't be recovered, however genuine the oversight.

Does any of this mean using a tax rebate company is pointless? +

Not necessarily pointless for everyone, but for most straightforward NHS claims — a uniform allowance, one or two professional subscriptions, a mileage shortfall — there's nothing a rebate company does that you can't do yourself directly with HMRC, at no cost, once you know the actual rules (which is exactly what this guide and our companion guide on <a href="/tax-relief/how-to-claim-nhs-tax-relief-yourself/">how to claim it yourself</a> are for). Where a paid service might still make sense is a genuinely complex situation — several years across changing employers or circumstances, a claim that's already been disputed, or simply not having the time or inclination to do the admin yourself — but that's a choice to make with your eyes open about the fee involved, not a necessity for the average claim.