US Sales/Use Audit
Sales/Use-tax audit-defense pack: pull the period, stratified sampling, exemption-certificate coverage, error-rate projection, exposure estimate and an auditor-ready workpaper
Sales/Use-tax audit-defense pack: pull the period, stratified sampling, exemption-certificate coverage, error-rate projection, exposure estimate and an auditor-ready workpaper
Key Features
statistically defensible stratified or simple-random sample
statistically defensible stratified or simple-random sample with a fixed seed so the exact same sample can be reproduced for the auditor, checks every tax-free sale against the exemption certificates on file, captures the auditor's findings
One-click population pull
One-click population pull — build the audit population from posted customer invoices and credit notes for the exact audit period, company and ship-to state, capturing taxable base, tax charged, tax-free flag and the state each line belongs
Stratified & simple-random sampling
Stratified & simple-random sampling — draw a defensible sample either fully at random or stratified into value bands (auto-built quantile strata or your own dollar cut-offs) with a per-stratum allocation, all driven by a fixed random seed s
Exemption-certificate coverage check
Exemption-certificate coverage check — every tax-free transaction is matched against the certificates on file for that customer and state; any tax-free sale with no valid, in-date certificate is flagged as raw exposure before the auditor ev
Line-by-line findings capture
Line-by-line findings capture — the reviewer marks each sampled item as clean, taxable-error, wrong-rate, or missing-certificate and records the tax deficiency; the workpaper keeps the base, tax charged and tax due side by side.
Error-rate projection & exposure estimate
Error-rate projection & exposure estimate — projects the sample findings to the full population using both mean-per-unit and ratio (difference) estimation, with a standard error, confidence interval and finite-population correction, so you
Penalty & interest modelling
Penalty & interest modelling — applies a configurable negligence penalty rate and monthly interest across the periods since the tax was due to turn the projected tax exposure into a total assessed-liability estimate.
Stratified projection roll-up
Stratified projection roll-up — projects each stratum independently and rolls the strata up into a combined exposure with a pooled confidence interval, the way a state auditor actually computes it.
Auditor-ready workpaper export
Auditor-ready workpaper export — generate a fully footnoted workpaper (population summary, sampling plan, certificate gaps, findings schedule and projection math) as an attached CSV/text workpaper for the engagement file.
Reproducible & audit-trailed
Reproducible & audit-trailed — the seed, sampling method, strata cut-offs and every reviewer finding are stored on the engagement with full chatter, so the workpaper can be re-run and defended months later.
Engagement dashboard
Engagement dashboard — each audit engagement shows live population count, sample size, certificate-gap count, projected exposure and status from draft through fieldwork to closed.
Screenshots
Why Choose This Module
When a state sends the sales-and-use-tax audit notice, prep turns into a CPA fire-drill billed by the hour: someone has to pull every invoice in the audit period, agree a sampling method with the auditor, hunt for the exemption certificates that justify the tax-free sales, tally the deficiencies the auditor finds on the sample, and then project those findings across the whole population to argue the real exposure — all in a spreadsheet nobody trusts.
Specifications
- Compatible: Odoo 18.0 / 19.0
- License: OPL-1
- Languages: English
- Author: Pokutsoft
- Dependencies: base, mail, account
- Support: support@pokutsoft.com
Update date: 2026-07-05