Audit engagement
Full financial audit of expense management applications
Our flagship engagement — end-to-end testing of claims, cards, approvals, and ledger postings across the expense applications your organisation relies on.
Who this engagement is for
Finance directors, internal audit leads, and controllers who need independent assurance that expense management applications — the systems staff use for travel claims, corporate cards, and reimbursements — produce reliable figures for the ledger and for statutory reporting.
Result you can take to a committee
You receive a management letter that maps findings to concrete claim cycles, names the control owners, and ranks exceptions by financial exposure. The letter distinguishes configuration weaknesses from human overrides so remediation can be assigned without guesswork.
Scope included
- Mapping of applications in scope (primary expense tool, card feeds, ERP postings)
- Walkthrough of a complete claim: submission, receipt capture, approval, posting
- Risk-based sample of transactions for the agreed review period
- Tests of per diem rules, mileage rates, and policy exception handling
- Reconciliation checks between application extracts and general-ledger batches
- Interviews with accounts payable, travel desk, and selected approvers
- Draft findings discussion, then a final management letter and appendix of samples
Scope excluded
- Statutory financial statement audit opinions
- Software development or application configuration work
- Fraud investigation beyond the sampled population (we will flag indicators for separate engagement)
- Vendors outside the applications named in the engagement letter
How we work
- Scoping workshop — confirm applications, legal entities, period, and access.
- Sample design — size the population by claim type, geography, and amount bands.
- Fieldwork — extract testing, walkthroughs, and evidence collection.
- Findings — draft review with your finance lead, then final letter delivery.
Duration and delivery
Most mid-size organisations need four to eight weeks from access granted to final letter. Fieldwork may combine days at your Bangkok office with remote extract review. Preparation on your side includes read-only access, policy documents, and a population extract for the period under review.
Fees
Quoted as a fixed fee after the scoping workshop. Fee drivers are the number of applications, legal entities, claim volume, and whether prior-year samples are available. See our Fees page for starting ranges.
Next step
Request an estimate with the applications in use and the period you want examined. We respond within two business days.