Manufacturing
A manufacturer's margin is decided by its costing. Materials, labour and production overheads have to be absorbed into work in progress and finished goods on a consistent basis, with fixed overheads spread over normal capacity and abnormal waste written off as it occurs. Standard costs drift, bills of materials go out of date, and the inventory figure is only as reliable as the last count reconciled to the ledger. For federal tax, the uniform capitalisation rules of section 263A can require more costs in inventory than the books carry, unless the business qualifies for the small business exemption.
- Product costing, overhead absorption and monthly variances against standard (see cost analysis)
- Raw materials, work in progress and finished goods valued, with counts reconciled to the ledger (see inventory management)
- Plant and machinery held in a fixed asset register agreed to the ledger, with book depreciation and tax depreciation under MACRS kept side by side
- Gross margin by product line and plant in your monthly management accounts