What should a UK expense claim policy include?

What an expense policy is for

Most expense disputes — between employee and manager, between employee and finance, between employer and HMRC — come from ambiguity. Was that allowable? Was approval needed? Why was it rejected? A clear written policy answers these questions before they're asked, sets uniform expectations across the workforce, and protects the company in HMRC compliance reviews.

A good UK expense policy is short — typically 2–4 pages — and covers: what's reimbursable, what evidence is required, the approval workflow, the rates that apply, and what happens to non-compliant claims.

What every UK expense policy should cover

The structure most policies follow:

1. Scope and principles — who the policy applies to, the underlying philosophy
2. Categories of expense — what counts as travel, subsistence, entertainment, etc.
3. Limits and pre-approval — when manager sign-off is needed before spending
4. Evidence — what receipts and records are required
5. The approval workflow — who approves, in what order, how disputes are escalated
6. Mileage — AMAP rates and the rules for business journeys
7. Submission deadlines — how soon claims must be submitted
8. Payment — how and when reimbursements are paid
9. Consequences — what happens for late, missing, or fraudulent claims

Categories — the standard breakdown

Travel

• Public transport (rail, bus, taxi, flights — economy class default)
• Car parking and tolls
• Mileage in personal vehicles (covered by AMAP)
• Avoid first class unless on a long-distance journey above a defined threshold

Accommodation

• Hotel within a defined budget per night, by city tier
• No incidentals beyond a small daily limit (typically £5)
• Receipts required showing room rate, taxes, dates

Subsistence

• Meals while on overnight business trips
• Daily limits (often £35–£50, varies by location)
• No alcohol unless explicitly part of a client meal
• VAT receipts required, not card statements

Client entertainment

• Pre-approval required for anything above a threshold (often £100)
• Detailed records: who, where, what was discussed
• Reportable for tax — not deductible for corporation tax
• Often subject to "reasonable and proportionate" caveat

Training and development

• Pre-approved courses and conferences only
• Travel and accommodation under standard rules
• Materials and certifications reimbursable with receipts

Home working

• Specific items (desk, chair, internet contribution) up to defined limits
• HMRC's £6/week home-working allowance for utilities (no receipts needed)
• Purchases over a threshold remain company property

Pre-approval thresholds

Setting clear thresholds for when manager pre-approval is required prevents post-hoc disputes. A typical small-business policy:

• Anything above £100 — manager pre-approval
• Anything above £500 — finance approval as well
• Anything international — pre-approval regardless of value
• Client entertainment — always pre-approved
• Cash advances — pre-approval and reconciliation within 14 days

The thresholds should be consistent with the company's general delegation of authority — expense limits below routine purchase order limits create friction and inconsistency.

Evidence — what counts

UK VAT rules require itemised VAT receipts to reclaim VAT on expenses. A card statement is not a VAT receipt — it shows the card transaction but not the VAT breakdown.

For each claim, the minimum evidence:

• Itemised receipt showing date, supplier, items, total, and VAT
• Mileage log for car journeys: date, route, miles, business purpose
• Hotel folio for accommodation, not just the booking confirmation
• Restaurant receipt with itemisation, not just the card slip
• Invoice for online purchases, including VAT registration number

Photo receipts (phone snapshots) are acceptable evidence — the original paper receipt isn't required to be retained.

Submission deadlines

Most policies set a 30-day deadline. A common structure:

• 30 days — standard claim deadline
• 60 days — late claims accepted with manager approval
• 90+ days — generally not reimbursed except in exceptional circumstances

Reasons to enforce a deadline:

• Late claims complicate VAT reclamation cycles
• They create surprise costs in financial period closures
• Memory of business purpose fades, making approval harder
• Fraud risk increases the further from the event

Communicate the deadline clearly. A policy that's never enforced becomes a policy with no deadline.

The approval workflow

A typical workflow:

1. Employee submits the claim with evidence
2. Line manager reviews — confirms business purpose, checks against limits
3. Finance verifies — VAT, accounting code, payment authorisation
4. Payment processed in the next payroll or expense run

For claims above a threshold, additional approval levels (department head, director) may apply. The policy should set those thresholds explicitly — not leave them to discretion.

For employees who manage their own department's spend, build in a check on self-approvals — at minimum, peer review or finance sign-off.

Mileage in detail

Reference the AMAP rates explicitly:

• 45p per mile for the first 10,000 business miles a year (cars/vans)
• 25p per mile after 10,000
• 24p per mile for motorcycles
• 20p per mile for bicycles

Business mileage requires:

• A defined business purpose (not commuting)
• A start and end location
• A reasonable route (avoiding scenic detours)
• Recorded in real time, not estimated months later

The 10,000-mile threshold tracks per employee per tax year, not per claim. Mileage software should switch rates automatically at the threshold.

Consequences for non-compliance

A clear escalation pattern:

• First breach — coaching conversation, written record
• Repeated breaches — formal warning under disciplinary policy
• Fraudulent claims — gross misconduct, dismissal possible
• Recovery of incorrect payments — through future pay, with contractual right to deduct

Define "fraudulent" carefully: false receipts, claiming the same expense twice, claiming personal expenses as business. Genuine errors caught early should be corrected without escalation.

VAT and accounting

For VAT-registered employers:

• Standard-rate VAT can be reclaimed on most travel and subsistence
• VAT cannot be reclaimed on client entertainment
• VAT on staff entertainment (Christmas parties etc.) has its own rules and limits
• VAT receipts must show the supplier's VAT registration number

For accounting:

• Code each claim to the right cost centre and category
• Capture project codes for billable expenses
• Track recurring expenses separately for budgeting

Common policy failures

"Reasonable" left undefined

A policy that says "claim reasonable expenses" with no further detail produces inconsistent decisions. Define limits explicitly.

No pre-approval threshold

Without a clear pre-approval rule, post-hoc rejections become routine. Set a number, communicate it, enforce it.

Subsistence rates not updated

Many policies stick with rates set five years ago. Subsistence rates should be reviewed annually against current cost of living.

No alcohol policy

Either alcohol is reimbursable (with limits and conditions) or it isn't. Silence creates inconsistent decisions.

Manager and finance roles unclear

If both can approve and neither can override, claims sit in limbo. Define which role owns which decision.

Putting it into practice

A robust expense policy:

1. Is communicated at induction and republished after every material change
2. Sets explicit limits and pre-approval thresholds
3. Specifies evidence requirements clearly
4. Defines the approval workflow with named roles
5. References AMAP rates by reference (not by number — those change)
6. Sets and enforces submission deadlines
7. Defines escalation for non-compliance

Most employers benefit from a single policy applying to everyone. Policies that vary by seniority or department create perception problems and admin overhead. Keep it simple, keep it visible, keep it enforced consistently.