Correction to the 2025 Instructions for Form 3468

If you downloaded or printed the 2025 Instructions for Form 3468 prior to March 27, 2026, please note the following correction to pages 20 and 21.

Under Part VI, Section A–Geothermal Energy Credit, line 1b, and Section B–Solar Energy Credit, line 3b, we have added the limited exceptions within the text and the tables for the description of applicable percentage. The corrected instructions are below. If you filed your return before the instructions were revised, you can file an amended return to make a correction to your return.

Line 1b

For qualifying geothermal energy property placed in service during the tax year, the applicable percentage is determined by the beginning of construction date and if either (1) the PWA requirements are met or (2) a limited exception is met. See Part I, lines 7 and 8, Filers Completing Part V or VI, earlier. Use the table below to determine your applicable percentage and enter it on line 1b.

See Increased Credit Amount Statement, earlier, for more information.

Line 3b

For qualifying solar energy property (described in Solar energy 1 or 2 above) placed in service during the tax year where construction begins before 2025, the applicable percentage is determined by meeting the PWA requirements or a limited exception. See Part I, lines 7 and 8, Filers Completing Part V or VI, earlier. Use the table below to determine your applicable percentage and enter it on line 3b.

For qualifying solar energy property (described in Solar energy 3 above) placed in service during the tax year, the applicable percentage is determined by the beginning of construction date and if either (1) the PWA requirements are met or (2) a limited exception is met. See Part I, lines 7 and 8, Filers Completing Part V or VI, earlier. Use the table below to determine your applicable percentage and enter it on line 3b.

Tip: See Increased Credit Amount Statement, earlier, for more information about the required statement.