Operations File / Inventory Controls

Inventory was moving.
The accounting wasn't keeping up.

Business type Trade Supply & Service
Annual revenue $3.8M–$5.2M
Inventory value $285K–$430K
Monthly activity 850–1,100 transactions
01 / Where the inventory lived

One company. Several pools of inventory.

The business supported contractors, property managers, and smaller commercial clients with replacement parts, installation materials, specialty supplies, and service work.

Sales were growing, but inventory tracking still depended heavily on spreadsheets, manual counts, and adjustments made after problems had already appeared in the financial statements.

Location 01 Warehouse Stock Resale inventory, replacement parts, bulk materials and frequently purchased items.
Location 02 Service Vans & Jobs Parts pulled for technicians, installation materials and items consumed before final billing.
Location 03 Customer Billing Material usage should eventually connect to job cost, customer revenue or inventory adjustment activity.
Control gap 01

Warehouse, van, job and special-order inventory were not reviewed through one consistent monthly reconciliation.

Control gap 02

Job margins could change after invoicing when parts, returns, freight or previously unassigned material were identified.

Control gap 03

Month-end inventory adjustments were being recorded without enough detail to explain the operational reason behind the correction.

02 / Item Control

Before analyzing variance, the item records had to make sense.

Duplicate part numbers, inconsistent units of measure, miscellaneous items, and unclear locations can make a technically complete inventory system unreliable.

The cleanup separated resale inventory, job material, consumables and service-van stock while creating clearer categories for returns, damage, shrinkage and job usage.

Inventory Master Review Selected Items / Illustrative Data
Item Description Location System Qty Count Qty Unit Cost Extended Variance Review
P-1044 Commercial Valve Assembly Warehouse A 42 42 $118.40 $0.00 MATCH
F-2210 Flexible Supply Line Warehouse B 185 179 $14.80 ($88.80) COUNT
V-0842 Replacement Motor Van 03 6 4 $286.20 ($572.40) REVIEW
S-4198 Special Order Control Kit Job Hold 3 3 $492.00 $0.00 JOB?
C-1190 Installation Consumable Pack Van 06 24 17 $31.60 ($221.20) USAGE
ACCOUNTING REVIEW / A physical count difference is not automatically “shrinkage.” The variance may represent an unrecorded job issue, incorrect transfer, damaged inventory, timing difference or a true loss. The accounting entry comes after the operational cause is investigated.
03 / Physical Control

Service-van inventory became part of the close.

Inventory carried by technicians is easy to overlook because the material physically leaves the warehouse before it necessarily appears on a customer invoice.

A recurring count sheet created a documented link between expected stock, physical counts and material assigned to jobs.

Van Stock Count

Vehicle 03 / Month-End Review
Reviewer: ________
Item Expected Count Difference
Replacement Motor 6 4 -2
Control Module 8 8 0
Supply Line 22 18 -4
Consumable Pack 24 17 -7
Valve Assembly 5 5 0
04 / Monthly Variance

The adjustment became the beginning of the question — not the end of it.

The monthly review separated timing issues from actual cost problems and concentrated attention on the largest drivers.

Positive variance amounts below are treated as unfavorable; negative amounts are favorable.

Variance Area Amount Status Finding Action
Parts Usage +$7,860 Unfavorable Materials pulled for jobs were not consistently assigned before billing. Added job-material review before invoice finalization.
Vendor Price Changes +$3,420 Unfavorable High-turnover items increased in cost before sales pricing was updated. Created monthly price review for the top 25 items.
Freight & Delivery +$1,950 Unfavorable Freight was absorbed on several special-order purchases. Added freight-recovery review for special orders.
Returns & Credits -$2,740 Favorable Vendor credits cleared older open returns. Matched credits to original purchase records.
Inventory Adjustments +$4,180 Unfavorable Service-van counts showed missing or unassigned parts. Implemented monthly van-stock count sheets.
Net Monthly Variance +$14,670 Unfavorable Primary drivers were job-material timing, vendor pricing and van-stock control. Reviewed with ownership during the monthly close meeting.
+ = unfavorable cost movement     /     − = favorable cost movement
05 / Inventory Roll-Forward

Every month needed an explanation from beginning inventory to ending inventory.

A simple roll-forward gave ownership and accounting one schedule for evaluating purchases, transfers, job usage and adjustments.

Instead of asking only whether ending inventory looked reasonable, the review explained how the balance changed.

Beginning Inventory $361.2K Prior month close
Purchases +$96.4K Vendor receipts
Transfers +$3.8K Location activity
Job / Sales Usage −$88.7K Material relief
Adjustments −$4.2K Reviewed corrections
Ending Inventory $368.5K Month-end balance
06 / Owner Reporting

The report was built to direct attention, not create more paperwork.

Leadership did not need to review every inventory transaction. The monthly package summarized the control status, largest variances and specific items requiring follow-up.

Operations Accounting

Inventory Control Review

MONTH END
Inventory Accuracy 91% Count-to-system accuracy
Unbilled Materials $18.6K Requires job review
Slow-Moving Stock $42.3K Age / turnover review
Close Timeline 6 Days Down from 11 days
Review top 25 high-turnover items for current vendor pricing PRICING
Assign unbilled service-van material to completed work orders JOB COST
Follow up on older vendor returns and open credits AP
Cycle count high-value van inventory before next close CONTROL
Review slow-moving inventory for pricing or disposition AGING
07 / Implementation

The control process was introduced in stages.

The purpose was to improve inventory reporting without disrupting normal purchasing, service or warehouse operations.

Phase 01
Understand the existing records.

Reviewed the chart of accounts, item list, inventory categories, vendor records and recent inventory adjustments.

Baseline Review
Phase 02
Standardize the inventory structure.

Cleaned duplicate items, standardized material categories and built a monthly reconciliation schedule.

Item Control
Phase 03
Introduce recurring variance review.

Added monitoring for parts usage, vendor pricing, freight, returns and inventory adjustments.

Variance Report
Phase 04
Move the information into ownership review.

Added management notes, action items and a recurring inventory discussion within the monthly close schedule.

Management Cycle
08 / Result

The inventory balance became something the business could explain.

74% → 91% Inventory accuracy improved after count and adjustment procedures were standardized.
11 → 6 Days Month-end close became faster because inventory issues were identified and reviewed earlier.
$31K Older vendor credits, duplicate items and unassigned job materials were identified for correction.
Top 25 High-turnover items moved onto a recurring vendor-price and margin review.
Monthly Ownership received a recurring variance report instead of waiting for year-end cleanup.
Cleaner Job costing improved because materials were assigned more consistently before invoice finalization.
Certain operational metrics and financial values have been modified to preserve confidentiality while maintaining the integrity of the workflow, accounting treatment and reporting structure.
Inventory / Job Cost / Month-End

If inventory changes every month but no one can clearly explain why, the problem may be the process around it.

Eight Leaf Financial Services helps growing businesses organize inventory accounting, job-cost activity, reconciliations and monthly management reporting without adding unnecessary complexity.

Discuss your inventory process →