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FSN Analysis: Fast, Slow & Non-Moving Inventory

Definition

FSN analysis classifies inventory items as Fast-moving, Slow-moving or Non-moving according to how often and how much they are issued over a period, so that stores can focus replenishment on fast items and clear the rest.

Key facts
TermFSN analysis
In HindiFSN विश्लेषण
AreaPurchase & stores
Search phraseFSN analysis
Try itABC analysis

FSN विश्लेषण — हिंदी में अर्थ

FSN विश्लेषण स्टॉक को तेज़ी से चलने वाला (Fast), धीमा चलने वाला (Slow) और न चलने वाला (Non-moving) में बाँटता है — इस आधार पर कि अवधि में कितनी बार और कितना माल जारी हुआ — ताकि स्टोर तेज़ आइटम पर ध्यान दे और बाकी को निपटाए।

How to do FSN analysis

Take 12 months of issue data from the stock ledger. For each item, count how many months it was issued in, or calculate its consumption rate (quantity issued ÷ average stock). Rank the items and set thresholds that fit your business — a common rule is: issued in 8 or more of the last 12 months = Fast; issued in 1–7 months = Slow; not issued at all in 12 months = Non-moving.

Base it on issues, not purchases — an item bought every month but sitting unused is not fast-moving.

What to do with each class

Fast: keep close to the point of use, set reorder levels and safety stock, negotiate rate contracts. Slow: reduce order quantities, buy against demand, review every quarter. Non-moving: check if it is a critical spare (see VED) before scrapping; otherwise return to the supplier, use in another product, sell or write off. FSN is often combined with ABC analysis so a costly non-moving item gets attention first.

Example

A fabrication store with 1,200 items finds 310 Fast, 540 Slow and 350 Non-moving. The non-moving items hold ₹18 lakh — 22% of stock value — most of it left over from two cancelled export orders.

Related tools and guides

Frequently asked questions

What is the full form of FSN?

Fast-moving, Slow-moving and Non-moving.

What is the difference between ABC and FSN analysis?

ABC ranks items by annual consumption value; FSN ranks them by how often they move. Using both shows where money is stuck.

How long before an item is non-moving?

Commonly 12 months with no issue, though some businesses use 6 or 24 months depending on their product cycle.

Should non-moving stock always be scrapped?

No. Critical spares may move rarely but must be kept. Check VED classification first.

Related terms

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