Finance · Process breakdown

Can AI check and approve expense reports?

Let AI read receipts and check policy, approve the routine claims automatically, and send only the odd ones to a person.

5 stepsTypical mix: AI candidateIllustrative analysisUpdated

The expense claim process is one of the few back-office jobs where AI can do the core work rather than assist with it. An expense claim process runs on small, repeated decisions: is the receipt readable, does the amount match, is it within policy, who approves it. Reading receipts is exactly the unstructured task AI handles well, and policy checks are rules. What remains for people is the small share of claims that are unusual, sensitive or large. Start by writing the policy down as rules a system could apply, because a policy that lives in someone’s head cannot be automated, only imitated.

What each step needs

01 Standard automation

Capture the receipt and the claim

The employee photographs the receipt in the expense app and the system files it against the employee, the cost centre and the date. Intake is plumbing, not judgement.

One submission channel, so nothing arrives by email or on paper outside the process.
02 AI candidate

Read the receipt into structured fields

AI extracts merchant, date, amount, currency, tax and category from the photo, including crumpled, faded and foreign receipts that template-based capture never handled.

Low-confidence fields are flagged rather than guessed, and the original image stays attached to the claim.
03 Standard automation

Check policy and clear the routine claims

Limits per category, per diem rules, required fields and duplicate detection run as explicit rules on the extracted data. Claims that pass are approved and queued for payment.

The policy is written as rules that finance owns and can change without a developer.
04 AI candidate

Flag and explain the unusual claims

AI compares a claim with the employee’s history and typical patterns for the category, and writes a one-line reason why it looks unusual. The reviewer starts from that note instead of a blank screen.

The note is a prompt for a person, never a rejection; the AI does not decline claims.
05 Human review

Review exceptions and approve

The manager or finance reviews flagged claims with the AI note attached, asks for missing details, and approves or rejects. Approved exceptions join the payroll export.

The payroll or payment export only accepts claims with a recorded approval, automated or human.

A sensible first experiment

Run AI extraction and the policy check in shadow mode for one month while managers approve as they do today. Count field corrections, false flags, and claims the rules would have cleared that a manager rejected. Switch on automatic approval for the lowest-risk category first, with a monthly sample check.

The trap to avoid

Automating approval before the policy is precise. If two managers would decide a claim differently, the rules are not ready, and the AI will simply be inconsistent faster.

Questions teams ask

Do we need expense management software for this?

You need a single place where claims and receipt images arrive, a way to run policy rules, and an export to payroll or your accounting system. Expense management software bundles those and usually includes receipt reading. If you already have an expense app, check whether it exposes claims through an API before adding another tool; the AI and policy steps can often sit around what you have.

How accurate is AI at reading receipts?

Good enough to handle most clean receipts without correction and to say when it is unsure, which is the property that matters. Faded thermal paper, handwritten totals and foreign tax lines are where errors cluster. Measure accuracy per field during the pilot and let the system flag low confidence instead of forcing a value; a flagged field costs seconds, a wrong amount costs trust.

Where should a person stay in control?

At the policy, the thresholds and the exceptions. Finance decides what the rules are and changes them, a manager reviews claims that are unusual or large, and someone remains accountable for fraud checks. Everything below those lines can run without a person touching it, as long as a monthly sample review confirms the rules still behave as intended.

Illustrative workflow guidance by Arcgent. Each business needs its own assessment. No integration or savings claim has been verified for your systems.

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