Audit engagement
Subscription Billing Audit
A structured review of how recurring charges, renewals, and proration are calculated, recorded, and reconciled for your revenue team.
Who it is for
Recurring revenue teams that bill monthly or annually and need an independent check of billing accuracy before close or a board review.
Result you receive
A written findings pack with prioritized billing discrepancies, sample recalculations, and a remediation sequence your finance and ops leads can act on.
Scope
Contract-to-invoice sampling, renewal and cancelation paths, tax and currency handling where applied, and ledger tie-out for a defined subscription cohort.
Included
- Kickoff scoping call and document request list
- Sample selection across plan types and billing intervals
- Manual recalculation of invoices against contract terms
- Findings memo with severity ratings and evidence excerpts
- Walkthrough session with your revenue and finance leads
Not included
- Statutory financial statement audit opinion
- Software implementation or billing system configuration
- Ongoing bookkeeping or month-end close support
Who delivers the work
Lead auditor from the InnoSoft Systems Taipei practice, supported by a billing specialist for sampling and recalculation.
Process
- Scope and cohort definition
- Document intake and access confirmation
- Sampling and recalculation
- Findings draft and internal review
- Client walkthrough and remediation briefing
Duration & delivery
Typically three to five weeks after complete document intake, depending on cohort size and plan variety.
Remote document review with optional on-site sessions at our Sanchung office or your Taipei-area workspace.
What to prepare
Export of active subscriptions, recent invoices, plan catalogs, refund logs, and the contract templates in force for the period under review.
Constraints
We audit billing accuracy and controls; we do not issue CPA attestations or replace your statutory auditor.
Fees
Fixed engagement fee based on cohort size and plan complexity; quoted after a short scoping call.
Next step
Request an audit scoping call so we can size the cohort and send a written estimate.