Calculate cost of goods sold and ending inventory using the LIFO method. Assign newest purchase costs to sales first for tax-efficient COGS.
The Last-In, First-Out (LIFO) method assigns the most recently purchased inventory costs to Cost of Goods Sold (COGS) first. The oldest costs remain in ending inventory. LIFO is permitted under US GAAP but prohibited under IFRS.
In periods of rising prices, LIFO produces higher COGS and lower taxable income compared to FIFO, providing a tax deferral benefit. However, the balance sheet shows ending inventory at older, lower costs, which may understate the true market value of inventory on hand.
This calculator lets you enter up to three purchase lots and the number of units sold. It applies LIFO logic — consuming from the newest lot first — to compute COGS, ending inventory value, and average cost per unit sold.
Supply-chain managers, warehouse operators, and shipping coordinators rely on precise lifo inventory cost data to maintain efficiency and control costs across complex distribution networks. Revisit this calculator whenever conditions change to keep your logistics plans aligned with real-world performance.
LIFO is strategically valuable for US companies seeking to minimize current-period tax liability during inflation. This calculator helps accountants, inventory managers, and students quickly compute LIFO cost layers without manual spreadsheets, enabling easy comparison with FIFO to quantify the tax benefit. Real-time recalculation lets you model different scenarios quickly, ensuring your logistics decisions are backed by accurate, up-to-date numbers.
LIFO COGS: Assign costs from the newest lot first until units sold are exhausted. COGS = Σ(Units from each lot consumed × Unit Cost of that lot) Ending Inventory = Total Inventory Cost − COGS
Result: COGS = $1,440
Under LIFO, the first 120 units sold come from Lot 2 (newest) at $12 = $1,440. Ending inventory = 100 units from Lot 1 at $10 ($1,000) + 30 units from Lot 2 at $12 ($360) = $1,360.
Under LIFO, each purchase at a distinct cost creates a layer. When units are sold, costs are drawn from the newest layer first. Once that layer is exhausted, the next newest is used. Old layers can persist for years, creating a growing gap between book value and replacement cost.
The LIFO tax benefit is most significant during sustained inflation. Companies track the LIFO reserve — the difference between FIFO and LIFO inventory values — to quantify cumulative tax savings. A $500,000 LIFO reserve at a 25% tax rate represents $125,000 in deferred taxes.
LIFO is most common in industries with rising input costs: oil and gas, chemicals, metals, and wholesale distribution. Companies must use the same method for tax and financial reporting (the LIFO conformity rule), which means the tax benefit comes with lower reported earnings.
LIFO stands for Last-In, First-Out. It assumes the most recently purchased inventory is sold first. The cost of the newest units is assigned to COGS, and the oldest units remain in ending inventory.
The primary advantage is tax deferral during inflationary periods. By assigning higher recent costs to COGS, taxable income is reduced. This provides a cash flow benefit equal to the tax rate times the LIFO reserve.
LIFO liquidation occurs when a company sells more units than it purchases, dipping into older, lower-cost layers. This temporarily inflates gross profit and triggers higher taxes, negating years of tax deferral.
No. IFRS prohibits the LIFO method. Companies reporting under IFRS must use FIFO or weighted average cost. US companies that also report under IFRS maintain dual inventory records.
The LIFO reserve is the difference between inventory valued at FIFO and inventory valued at LIFO. It represents the cumulative tax benefit of using LIFO and is disclosed in financial statement footnotes.
LIFO typically lowers current assets (inventory is undervalued) and reported income. This can affect working capital ratios, debt covenants, and profitability metrics. Analysts often adjust for LIFO reserve when comparing companies.