Instructions for Form 3115›(Rev. December 2022)›! 481(a) adjustments) from changes under DCN 248
Schedule C—Changes Within the LIFO Inventory Method
1222 Inst 3115 (PDF) · 2026-10-03 edition · updated 2026-10-04 · United States
Use this schedule to request a change from one LIFO inventory method or submethod to another LIFO inventory method or submethod. All applicants changing within the LIFO inventory method or submethods must complete Part I. Complete Part II only if applicable.
Part I—General LIFO Information
Line 6. Applicants changing to the inventory price index computation (IPIC) method must use this method for all LIFO inventories. This requirement includes applicants requesting DCN 61 or 62 in the List of DCNs, later.
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