Solar production credit (§45Y) vs investment credit (§48E): which fits an individual investor?
By the Tax Field Guide editorial team. Published 2026-10-26. Facts checked 2026-10-26. Related strategies: Solar Investment Credits, Purchased Energy Credits.
Education only; not tax, legal or investment advice. Tax rules change, and how they apply depends on your facts. No outcome is guaranteed.
For solar placed in service after 2024, the owner of a qualifying facility generally chooses between two technology-neutral credits: the clean electricity production credit in §45Y (a credit per kilowatt hour sold) and the clean electricity investment credit in §48E (a percentage of the cost). The IRS says plainly that you cannot claim both for the same facility.12 This guide compares them from the point of view of an individual investor.
The two credits side by side
| §48E investment credit (ITC) | §45Y production credit (PTC) | |
|---|---|---|
| What it is based on | A percentage of the qualified investment (cost basis) | Kilowatt hours produced and sold to an unrelated person |
| Base rate | 6% | 0.3 cents per kWh, adjusted for inflation |
| With prevailing wage and apprenticeship (or under 1 MW) | 30% (5 times the base) | 1.5 cents per kWh (5 times the base), adjusted for inflation |
| Bonus amounts | Up to 10 percentage points each for domestic content and energy communities | 10% increases for domestic content and energy communities |
| When it is claimed | The year the facility is placed in service | Each year of the 10-year period that starts when the facility is placed in service |
Sources: IRS credit pages and the statute.123
Differences that matter to an individual
- Timing. The ITC arrives in one year. The PTC is spread over 10 years and depends on how much power the facility actually produces and sells.3 A project that underperforms produces a smaller PTC; it does not change an ITC already claimed.
- Basis reduction. Claiming an investment credit generally reduces the depreciable basis of the property by 50% of the credit (§50(c)(3)).4 The production credit does not carry that basis reduction. See bonus depreciation and solar.
- Recapture. Investment credits can be recaptured if the property is disposed of or stops qualifying within 5 full years of being placed in service.5 See solar ITC recapture.
- The passive activity limit applies to both. Either credit is a general business credit. If you do not materially participate in the solar activity, the credit can generally offset only tax on passive income.6 See solar credits and the passive activity rules.
The 2026 to 2027 cut-off applies to both
Public Law 119-21 terminated both credits for wind and solar facilities placed in service after December 31, 2027, unless construction began by July 4, 2026.37 It also bars facilities that begin construction after December 31, 2025 from either credit if they include "material assistance" from a prohibited foreign entity.38 A 10-year PTC stream therefore depends on the facility being placed in service on time and meeting those rules. See the solar credit in 2026.
Common questions
Can I claim both the solar ITC and PTC on the same project?
No. The IRS states that taxpayers cannot claim both the investment credit and the production credit for the same facility.
Is the production credit better than the investment credit for solar?
It depends on the project. The investment credit is a one-time percentage of cost and reduces depreciable basis; the production credit is paid per kilowatt hour over 10 years and depends on actual output. Both are limited by the passive activity rules for investors who do not materially participate.
Can production credits be sold?
Yes. The IRS says both the §45Y and §48E credits are eligible for transfer under §6418, after pre-filing registration.
Education only; not tax, legal or investment advice. Talk to a qualified professional before acting.
Sources
- IRS, Clean Electricity Production Credit, https://www.irs.gov/credits-deductions/clean-electricity-production-credit
- IRS, Clean Electricity Investment Credit, https://www.irs.gov/credits-deductions/clean-electricity-investment-credit
- 26 U.S.C. §45Y (10-year credit period; termination for wind and solar; prohibited foreign entities), https://www.law.cornell.edu/uscode/text/26/45Y
- 26 U.S.C. §50 (basis adjustment §50(c)(3); recapture §50(a)), https://www.law.cornell.edu/uscode/text/26/50
- IRS, Instructions for Form 4255 (recapture period and percentages), https://www.irs.gov/instructions/i4255
- IRS Publication 925, Passive Activity and At-Risk Rules, https://www.irs.gov/publications/p925
- 26 U.S.C. §48E, https://www.law.cornell.edu/uscode/text/26/48E
- IRS Notice 2026-15 (material assistance from prohibited foreign entities), https://www.irs.gov/pub/irs-drop/n-26-15.pdf