FIFO Inventory Method Explained: Why "First In, First Out" Protects Your Stock
What the FIFO inventory method is, why it matters for perishables and medicine, and how inventory software applies First In First Out automatically.
What is the FIFO inventory method?
FIFO stands for First In, First Out. It means the oldest stock you received is the first stock you sell. Goods that arrived today are not sold before goods that arrived a month ago. It is the simplest and safest way to manage perishable inventory.
Why selling old stock first matters
If you sell new stock before old stock, the old stock sits and eventually expires or becomes obsolete. FIFO ensures nothing sits too long. For food, medicine and seasonal goods, FIFO is the difference between profit and loss.
FIFO with batch and expiry dates
Software applies FIFO by tracking each batch's arrival and expiry date. When you bill a sale, the system deducts from the oldest batch first. This is called FEFO (First Expired, First Out) for expiry-based items - the safest form of FIFO.
The danger of ignoring FIFO
Without FIFO, old stock hides behind new stock. Customers buy the fresh items at the front while the old items expire at the back. A manual shop cannot reliably see which batch is oldest - software can, instantly.
FIFO keeps your customers safe
For medicine and food, selling the oldest stock first means customers always receive products with the most time left before expiry. This builds trust and protects you from selling expired goods.
FIFO affects your profit numbers
FIFO also affects accounting: you value the cost of sold goods using the oldest purchase costs, and leftover stock at the newest costs. Inventory software computes this automatically so your profit figures are consistent and correct.
How software applies FIFO automatically
You do not need to remember anything. Record each purchase with its batch and date, and the software deducts sales from the oldest batch first. At any moment you can see which batches remain and when they expire.
FIFO for non-perishable goods too
Even electronics and clothing benefit from FIFO. Models and designs lose value over time. Selling the oldest stock first reduces obsolete inventory and keeps your shelves looking current.
Example: FIFO saving a grocery shop
A shop buys milk with 30 days of shelf life and sells 20 cartons a day. FIFO deducts the oldest cartons first, so no carton ever expires on the shelf. Compare that to a manual shop that cannot tell which batch is older.
FIFO vs LIFO: what is the difference?
LIFO (Last In, First Out) sells the newest stock first - a method that suits non-perishable goods in certain accounting situations, but is dangerous for food and medicine. FIFO is always safer for perishables and is the default the software applies.
When FIFO is less important
For identical, non-perishable goods like plain stationery or hardware screws, FIFO still works but matters less - every unit is the same. Yet even there, selling old stock first keeps your stockroom moving and reduces clutter.
Common FIFO mistakes in manual shops
Staff stacking new stock in front of old stock, forgetting to rotate shelves, and no system for identifying older batches. Each mistake silently ages your inventory. Software enforces FIFO so rotation happens without relying on anyone's memory.
See FIFO working in one dashboard
The software shows every batch you hold, when it arrived and when it expires - and deducts sales from the oldest batch automatically. One glance tells you what to sell next and what to return or discount.
Making FIFO easy for your team
Staff do not need to think about batches at all - they just scan and bill, and the software picks the oldest stock automatically. The less your team must remember, the fewer mistakes they make. FIFO becomes invisible protection.
Frequently asked questions
Q: Do I need to enter batch numbers? A: Only for perishables; simple FIFO needs just arrival order. Q: Is FIFO automatic? A: Yes, the software applies it on every sale. Q: What about non-perishables? A: FIFO still prevents obsolescence.
Get FIFO protection automatically
Do not leave stock rotation to chance or staff habit. Book a free demo with Orixa to see FIFO and FEFO applied automatically, batch by batch, in inventory software built for local businesses.
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