LIFO stands for "last in, first out," an accounting method where the most recently added items are recorded as sold first. Businesses use it to track inventory costs and manage financial records.
Under LIFO, the cost of goods sold (COGS) reflects the price of the newest inventory items. When prices rise, this method reduces taxable income by matching higher costs against sales revenue. Conversely, during falling prices, LIFO increases COGS and reduces net income.
| Type | Description | Example |
|---|---|---|
| Standard LIFO | Physical inventory follows LIFO flow | A bakery sells the newest bread loaves first |
| LIFO Conformity | Inventory accounted for using LIFO but physically managed differently | A retailer uses FIFO physically but applies LIFO for tax purposes |
LIFO is popular in the United States due to tax advantages, particularly during inflation. The IRS allows its use under specific conditions. However, International Financial Reporting Standards (IFRS) prohibit LIFO globally, except in the U.S.
Many manufacturing and retail businesses prefer LIFO because it aligns with their actual inventory flow. For example, a car dealership sells the newest models first, making LIFO a natural fit.
People often confuse LIFO with FIFO (first in, first out), which uses the oldest inventory first. Unlike FIFO, LIFO doesn't always match physical inventory flows. Another myth is that LIFO is always better for taxes - it depends on whether prices are rising or falling.
I once worked with a small business owner who insisted on using LIFO for perishable goods, which actually required FIFO. This led to confusion in tracking expiration dates until we switched to the appropriate system.
While LIFO focuses on recent items, FIFO uses older inventory first. Weighted average cost methods blend all inventory costs together. Each method affects financial statements differently, particularly during inflation or deflation periods.
According to the IRS, businesses must consistently apply their chosen inventory method. Switching between methods requires justification and approval.
LIFO is most beneficial when:
However, during falling prices, LIFO can increase taxable income, making other methods more advantageous. Businesses should consult with accountants to determine the best approach for their specific situation.