inventoryturnover.calc
PLAYBOOK / STEP 2

SKU rationalisation.

The 80/20 rule applies to almost every SMB inventory book. Cutting the bottom 20% of SKUs by gross-margin dollars typically releases 10 to 15 percent of working capital.

How to rank

Rank SKUs by trailing-twelve-month gross margin dollars, not by revenue. Margin-dollar rank surfaces the slow-moving long tail that quietly absorbs working capital. Revenue rank misses it.

RMA 2026

Strategic-depth exclusions

  • SKUs that defend a customer trip (the hex bolt in the hardware aisle).
  • SKUs tied to a regulated obligation (insurance-mandated, OEM service-parts).
  • SKUs that anchor a category for search visibility (the loss-leader sizes).

What the cut produces

A typical cut of the bottom twentieth percentile of margin-dollar rank, paired with reprice of the residual, releases ten to fifteen percent of average inventory inside one cycle. A $600,000 average inventory book commonly releases $60,000 to $90,000 of cash.

Customer-attrition guard

Pull the order history for the cut SKUs. If more than five percent of customer trips contain at least one cut SKU, replace with a single-stock substitute or grant the customer a one-time accommodation. Do not cut without the substitution map.

Margin-dollar rank, defend strategic depth, cut the residual, watch attrition.