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The Global Insight

Do you want to use the FIFO LIFO or the weighted average method?

Author

John Hall

Updated on February 21, 2026

It’s the easiest calculation and the most logical approach, so unless there is a strong reason for using LIFO or weighted average, FIFO is the default. If you sell high volumes of small items, like nails and screws for example, and the costs change regularly, weighted average may make more sense.

Is LIFO method more suitable than FIFO method?

FIFO is considered to be the more transparent and trusted method of calculating cost of goods sold, over LIFO. Although this may mean less tax for a company to pay under LIFO, it also means stated profits with FIFO are much more accurate because older inventory reflects the actual costs of that inventory.

What is always same in FIFO and weighted average methods?

The production process usually involves multiple stages and business units. The first-in first-out inventory valuation method assumes that the first items into inventory are the first items used in production. The weighted average cost is equal to the total cost of all inventory items divided by the number of units.

What companies use weighted average method?

Fuel Companies The gas and petroleum industries utilize the weighted average costing method for inventory purposes. The extraction, collection and storage of liquid fuels and related products makes it necessary for those involved in both the manufacture and sale of these products to use this inventory method.

What’s the difference between FIFO and weighted average?

Weighted average method uses the average inventory levels to calculate inventory value. Usage. FIFO is the most commonly used inventory valuation method. Usage of weighted average method is less compared to FIFO.

Can a weighted average be used to track LIFO?

While the weighted average method is a generally accepted accounting principle, this system doesn’t have the sophistication needed to track FIFO and LIFO inventories.

Which is better for inventory valuation, LIFO or FIFO?

Because both FIFO and LIFO deal with extreme case scenarios, it is important to have a system that balances out the pitfalls of both. Enter, Weighted Average Cost or WAC. This method is useful if your business does not have too much variation in inventory levels.

What’s the difference between FIFO and last in, first out?

Last in, first out (LIFO) is a method used to account for inventory that records the most recently produced items as sold first. First in, first out (FIFO) is an asset-management and valuation method in which the assets produced or acquired first are sold, used or disposed of first.