Why it matters to you
If your system was installed in 2026, older articles and sales pitches promising a federal tax credit no longer apply to you. Charleston-area savings now come mainly from Dominion Energy South Carolina, Berkeley Electric Cooperative, and Santee Cooper programs, rotating Daikin rebates, and South Carolina's pending HOMES and HEAR rebates.
Practical guidance
If qualifying equipment was installed on or before December 31, 2025, you can still claim the credit on your 2025 federal return using IRS Form 5695 — confirm the details with a tax professional. For 2026 installations, look to utility, state, and manufacturer programs instead.
