Safety stock: Definition, Formula & Why It Matters
Also called: Buffer stock
Safety stock is extra inventory held as a buffer against demand spikes or supplier delays. It is your insurance against stockouts during the lead-time window. Too little risks running out; too much ties up cash.
Safety stock formula
Example
When demand or lead times can spike, safety stock covers the gap between worst-case and average usage.
Why it matters for Reverb sellers
For sellers with variable demand or long overseas lead times, the right safety stock is the difference between reliably in stock and frequently sold out. It is a deliberate trade-off between availability and tied-up capital.
How Verbstack helps
Verbstack tracks demand variability so you can size safety stock to your actual sales pattern.
Track this on every order, automatically.
- ✓ Real fees, margins, and profit on every Reverb sale
- ✓ COGS and inventory tracked for you, no spreadsheet
- ✓ Full history and a live monthly P&L
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See this number on every order.
Connect your Reverb shop and Verbstack tracks your fees, margins, and profit automatically.
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