Inventory Audit
Obtain and document the following as of the audit date:
a. Trial Balance
b. Manufacturing Statement (YTD)
c. Manufacturing Budget (YTD)
d. Date of Last Physical
e. Cycle Counting Accuracy History
f. Inventory Turnover, Days Sales in Inventory, Margin
g. Date and Scope external auditor's most recent visit
h. Detail of Excess and Obsolete Inventory
i. Detail of Inventory held on Consignment
j. Detail of Inventory held at Subcontractor and Outside Vendor
k. Type of inventory system
l. Size of facility (square footage)
m. Primary products
n. Top 5 customers and competitors
Ensure Financial Statement Trial Balance agrees to the Trial Balance maintained by the facility.
Obtain explanations for any differences with the plant controller upon arrival.
Obtain and quantify in ACL the following reports as of the audit date:
a. Inventory Aging Report
b. Perpetual Inventory Listing
c. All Open Work Orders
Reconcile Perpetual Inventory Listing to the account balances that appear on the G/L. Obtain and
document explanations for differences from the Controller upon arrival.
Obtain and document explanations from the Controller for all open work orders older than two
Describe procedures for developing current year material, labor and overhead standards and the date
of the last revision. If a standard system is not used, obtain and document an explanation from the
Controller and/or Corporate Operations as to why a standard system has not been implemented.
Compare and document budgeted variances to actual variances for materials, labor, and overhead.
Obtain and document explanations for significant (5%+) variances from the controller and/or
Corporate operations.
For facilities that do not employ a standard costing system, recalculate labor and overhead allocations
and compare to the amount capitalized. Obtain and document explanations for significant (10%+)
variances from the controller upon arrival.
Discuss conclusions/observations with the senior associate. Obtain and document T&B senior
management concerns and ensure there are adequate procedures in the program to address those
Interview employees associated with the receiving process in order to gain an understanding.
Through inquiry and observation, ensure the following controls are in place and operating effectively
and are included on the process map. Identify all control gaps.
a. Goods are received at a designated receiving bay
b. Receipts are checked for quantity and quality
c. All goods received are based on a valid Purchase Order (PO) number
d. PO is stated on delivery documents and is verified for validity
e. The quantity of goods received is verified to the packing slip and bill of lading
f. The receiver signs delivery documents
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All receipts are recorded in a log and can be cross referenced to the appropriate delivery
h. The log is regularly reviewed
i. Receipts are accurately, promptly and completely updated in the inventory system
j. Raw materials are safeguarded
k. Transfer of raw materials are documented
l. Items not meeting qualifications are kept separate from other items
Process map procedures for vendor returns. Through inquiry and observation, ensure that returns
are communicated to the purchasing department and debit memo’s are prepared and forwarded to
accounts payable in a timely manner. In most instances, this will require sampling returns during the
audit period.
Through inquiry and observation, ensure that shipment discrepancy reports are pre-numbered and
reviewed by the appropriate purchasing and accounting personnel in order to ensure that debit
memos have been taken.
Interview employees associated with the production process. Map the production process and
include all applicable financial journal entries. Ensure the following controls are present and are
included in the process map. Identify all control gaps.
a. Authorized persons approve material requisitions.
b. Material requisitions coincide with the approved production plan.
c. Disbursements from stockrooms are allowed only upon receipt of properly authorized
requisition documents.
d. Management approval is required for stock issuance of amounts above the amount necessary to
support scheduled production requirements.
e. Approved requisition documents and inventory movement forms are promptly used to update
the inventory records.
f. Prenumbered requisition forms or sequential logs are used to record issuance of materials from
stores and inventory movement between locations.
g. Warehouse/store is properly locked to prevent unauthorized access and usage
h. Proper segregation of scrap and obsolete inventory
Obtain and review information supporting the most recent wall to wall physical inventory. Ensure
quantities on hand were not known to counters prior to the physical. Document compliance with
Corporate Policy.
Complete the physical inventory checklist. Document control gaps, if any.
Document book to physical adjustments for the past three years. Inquire as to whether or not the
adjustments were investigated prior to correcting entries being made. Document your
understanding of this process. Determine when and if the adjustments were capitalized or expensed
and if they were approved.
Evaluate propriety of reconciling items between the perpetual inventory listings and the G/L account
balances. Examine supporting documentation for each item individually greater than 2.5% of the
inventory account balance (or 50% of the items if individually none exceed 2.5%, but in the aggregate
exceed 5%.)
Obtain, review, and document policies and procedures surrounding cycle counts. Observe 2 cycle
counts and document the following:
a. What was counted and how it was selected
b. Cycle counter is not aware of quantity on hand prior to his count
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c. Agree test counts to perpetual inventory detail
d. Examine adjustment to perpetual inventory detail/general ledger, if applicable
e. Document historical accuracy rates
Based solely on the work performed, document observations regarding the physical security of
Based on the date and results of the most recent wall to wall physical count and the applicability of
cycle counts, consider performing the following:
a. Agree 10 inventory items per the perpetual to the quantity on hand
b. Agree 10 inventory items on hand to the perpetual
For facilities using standard costing system, perform the following:
1. Document procedures for developing current year standards (raw material, labor, and overhead) and
the date of the most recent development. Document compliance with Corporate Policy.
2. On a sample basis (minimum of 30), test the accuracy of the standards by performing the following:
a. Examine recent invoices supporting raw material component
b. Examine payroll related information supporting labor component, if applicable
c. Examine overhead estimate. Recalculate based on available information
3. On a sample basis, examine the method and accuracy of recording standard to actual variances. As
of our audit date, obtain explanations for standard to actual variances greater than the budgeted
amount. Examine entries to record variances and document whether the variances were capitalized
or expensed.
For facilities not using a standard costing system, perform the following:
4. Document procedures for developing current year labor and overhead amounts.
5. Examine (minimum of 30) recent invoices supporting raw materials, and the raw material component
of WIP and FG. Document results by quantifying unit cost variances and extrapolating to
6. Recalculate labor and overhead calculations and compare to amounts capitalized. Document
limitations in ability to recalculate.
Based on ACL reports, document inventory greater than 180, 270, and 360 days.
Document method for estimating reserve for excess and obsolete inventory. Document compliance
with Corporate Policy.
Obtain calculation of E&O estimate for most recent quarter-end and agree to G/L. Agree significant
components to supporting documentation.
Document inconsistencies, if any, between the calculation and aging analysis.
Ensure authorized persons adequately approve provisions or write-offs. Review for evidence of
approval of inventory write-offs before they are recorded.
Document policies and procedures for consigned inventory. At a minimum address the following
a. Existence of perpetual detail
b. Method of reporting, recording, and verifying changes (e.g. quarterly reports of inventory
balances are obtained from consignees for reconciliation to the facilities’ perpetual records and
that non-reconciling items are investigated and followed-up promptly)
c. Method of accounting for scrap
d. Results of recent physical counts
Document compliance with Corporate Policy on consigned inventories.
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Document method for accounting for inventory scrap. At a minimum address the following:
a. Method used to quantify
b. Method used to cost
c. Method used to dispose
Through inquiry and observation, ensure that scrap proceeds are collected from the scrap vendor
promptly after the collection of scrap materials.
Through inquiry and observation, ensure that approval is granted before materials are sent to scrap.
Through inquiry and observation, ensure that accounting and the warehouse verify the weight of the
scrap materials.
Through inquiry and observation, verify that scrap vendors are selected through a bidding process.
For the most recent quarter-end, obtain the last and first 3 shippers and receivers and agree pertinent
data to accounts receivable and inventory records ensuring that transactions are recorded in the
proper period.
Explain the facility’s procedures for ensuring proper cut-off.
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