The Difference Between FIFO Versus FEFO

FIFO means first in, first out: the oldest stock by receiving date ships first. FEFO means first expired, first out: the stock with the earliest expiration date ships first. In the FIFO versus FEFO choice, the question is whether arrival date or expiry date matters more for your goods.

For many products the two give the same answer. For dated goods they often do not, which is why the FIFO versus FEFO question comes up most in food and health products.

How FIFO Works

Under FIFO, the warehouse tracks when each lot arrived. When an order comes in, staff pick from the oldest receipt first. So older stock leaves before it can sit too long.

The weakness shows up with mixed dates. If a supplier ships an old production run late, FIFO will treat it as new stock and ship it after fresher goods.

FIFO suits goods that age but carry no printed expiry, such as many packaged consumer products. It also keeps rotation simple, since the system only needs receiving dates.

How FEFO Works

FEFO looks at the expiration or use by date instead. A lot received last week might expire sooner than one received last month, perhaps because it came from an older production run. Under FEFO, the earlier expiring lot ships first.

That method suits food, beverages, cosmetics, chemicals and other dated products. However, it needs accurate date data for every lot.

What FIFO Versus FEFO Requires

• FIFO needs receiving dates by lot or pallet
• FEFO needs expiration dates captured at receiving
• Both need locations that let staff reach the right lot
• Both depend on staff following system directions

If the warehouse cannot reach the right pallet without moving others, rotation breaks down. Floor stacked lanes make FEFO hard because the oldest date may sit at the back.

Rotation and Traceability

Dated goods often need lot records too. For foods on the FDA’s Food Traceability List, federal rules require additional traceability records. The FDA Food Traceability Rule page lists a compliance date of July 20, 2028. The guide on lot tracking explains how those records work.

Choosing a Rotation Rule

Ask your customers first, because their rules often settle the FIFO versus FEFO decision. Many retailers set minimum remaining shelf life for deliveries, which pushes suppliers toward FEFO.

For example, a hypothetical snack brand might find that two lots arrived out of order because one supplier shipped older stock. Under FIFO, the fresher lot would ship first. Under FEFO, the older dates would ship first and reach stores with enough shelf life. The article on warehouse inventory accuracy covers why date data must stay correct for either rule to work.