Rates
Rates for invoicing audits
Informational starting ranges for financial audit work on invoicing applications. Final fees follow scope, volume, and fieldwork access.
Pricing is informational only. We do not take online payments. After you describe entities and invoice volume, we send a written estimate before fieldwork begins.
Starting ranges
| Engagement | Typical starting range (THB) | Basis |
|---|---|---|
| Full invoicing application audit | 180,000 – 420,000 | Quote by volume & entities |
| Year-end invoice cut-off review | 95,000 – 180,000 | Fixed fee by sample size |
| Supplier invoice sampling assessment | 70,000 – 160,000 | Per sample tranche |
| Post-findings remediation advisory | 45,000 – 75,000 / week | Part-time retainer |
Ranges assume Thai or English source documents, reasonable access to binders or scanned packs, and a single primary finance contact.
What moves an estimate
- Monthly invoice count above roughly 1,500 documents
- More than two legal entities with intercompany invoices
- Paper-only archives stored off site
- Compressed deadlines driven by auditor field visits
- Need for evening or weekend sampling during close week
Deposits
A booking deposit of 30% holds fieldwork dates. The balance is due on delivery of the final memorandum or at the end of each remediation week. See our refund policy for cancellation and rescheduling rules.
How to get a number you can budget
Use the contact form with entity count, period under review, and approximate monthly invoice volume. We reply within two business days with a scoped estimate or with the few questions still needed.