Completing Form 6478 for tax years beginning after 2024

The qualified second-generation biofuel production credit under IRC section 40(b)(6) expired Dec. 31, 2024. Therefore, lines 1 and 2 of Form 6478 cannot be used for 2025 and subsequent tax years. However, line 3 can still be used by taxpayers receiving allocations of the credit in 2025 from fiscal-year pass-through entities.