Thin margin checker
See if unit cost eats too much of your selling price before the next supplier bump.
Calculator
Thin margin checker
Live result
—Enter values to see results update live.
Why this matters
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Early warning
Thin lines cannot absorb even a small supplier increase without repricing.
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Same logic as CostBeacon
CostBeacon flags thin margin when cost share of sticker price crosses your threshold.
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Clear next step
If a line is thin, reprice, negotiate, substitute, or exit.
Quick answers
What is thin margin?
Unit cost consumes most of the selling price, leaving little room for overhead or profit.
What should I do if a SKU is thin?
Repricing, negotiating, substituting, or exiting the line — especially before the next increase.
What target margin should I use?
Use the margin you need after overhead. Default thin threshold is 15% gross margin (85% cost share).
Sources & citations
Formulas follow standard cost-accounting definitions. CostBeacon defaults are documented in product help and technical guides.
Formula reference
cost share = unit cost ÷ selling price; thin when share > (100% − target margin)
CostBeacon
Turn invoices into cost history
Upload supplier PDFs and get line-item unit costs, price alerts, and margin insights — without spreadsheets.