LMI Adder: Categories, Application, and Recapture

The LMI adder is a federal bonus that increases the Clean Electricity Investment Tax Credit for small solar and wind projects that serve low-income communities, adding either 10 or 20 percentage points to the credit depending on how the project connects to underserved households. It is awarded competitively through the Department of Energy’s Clean Electricity Low-Income Communities Bonus Credit Amount Program, with 1.8 gigawatts of capacity available for the 2026 program year and applications opening February 2, 2026.¹

What the Adder Is Worth

The Clean Electricity Investment Tax Credit under Section 48E starts at 6 percent of a project’s investment cost. Meeting federal prevailing wage and registered apprenticeship labor standards multiplies that base to 30 percent.² The LMI adder stacks on top of whatever base rate applies. A project at the 30 percent rate that earns the 10 point bonus lands at 40 percent; one that earns the 20 point bonus reaches 50 percent.

That stacking works in the other direction too. If a facility between 1 and 5 megawatts fails the labor requirements, it drops to the 6 percent base, and the adder is added to that much smaller number. More on that trap below.

Who Qualifies: The Four Categories

The statute defines four pathways, split into a 10 point tier and a 20 point tier.³

Category 1: Facility in a Low-Income Community (+10 Points)

The project sits in a census tract with a poverty rate of at least 20 percent, or where median family income is 80 percent or less of the area median. The Department of Energy’s application portal includes mapping tools to confirm a site.⁴

Category 2: Facility on Indian Land (+10 Points)

The project sits on land that qualifies under federal definitions of Indian country, with tribal land designations documented in the application.³

Category 3: Federally Assisted Residential Building (+20 Points)

The facility is installed on a property that participates in a covered housing program, a USDA rural housing program, a tribally designated housing entity program, or a similar affordable housing initiative. Beyond location, the financial benefits of the electricity produced must be shared equitably among the building’s residents.³

Category 4: Low-Income Economic Benefit (+20 Points)

At least 50 percent of the financial benefit from the facility’s electricity must flow to qualifying households, defined as households with incomes below 200 percent of the federal poverty line or 80 percent of the area median gross income. Each qualifying household must receive a bill credit discount of at least 20 percent.⁵ Category 4 is the hardest to build but has the largest reserved capacity in 2026, at 800 MW.

If a project qualifies under more than one category, you can only apply under one, and that choice locks in both the bonus size and the competitive pool.

Project Size Cap and the Anti-Splitting Rule

The facility’s maximum net output must be under 5 megawatts of alternating current, measured by nameplate generating capacity when placed in service.⁵ Solar, wind, and energy storage co-located with the generating facility are all eligible, but storage must connect directly with the solar or wind property to fall under the same allocation.¹

Splitting a larger project into sub-5 MW pieces will not work. The final regulations treat facilities as integrated when they share the same owner, are placed in service in the same tax year, and connect through the same point of interconnection or serve the same end user. If those conditions are met, the facilities are aggregated for the capacity test.

The Prevailing Wage Trap Between 1 and 5 MW

Facilities under 1 megawatt are exempt from federal prevailing wage and apprenticeship rules and automatically receive the 30 percent base rate.⁶ Facilities between 1 and 5 MW are not exempt. Fail those labor standards and the base drops from 30 percent to 6 percent. A 20 point adder that would have taken a project to 50 percent instead lands at 26 percent. Even projects that actually pay prevailing wages need to file Form 7220 alongside Form 3468 for each facility; skipping the paperwork creates the same problem.⁷

How the 2026 Application Works

The application portal opens at 9 a.m. Eastern on February 2, 2026. Every application submitted by 11:59 p.m. Eastern on March 3, 2026, is treated as arriving at the same time and reviewed together as the initial 30-day batch. A rolling window runs from then through August 7, 2026, but rolling applications are only reviewed if capacity remains after the initial batch is processed.¹

When a category is oversubscribed in the initial window, a lottery decides who gets an allocation. Meeting the minimum requirements does not guarantee one. Within each category, 50 percent of capacity is reserved for projects meeting additional selection criteria tied to ownership structure or geographic location, which improves the odds for smaller community-rooted projects.

The 2026 capacity is divided as follows:¹

Category 1: 600 MW, split between residential behind-the-meter and front-of-meter or non-residential facilities
Category 2: 200 MW
Category 3: 200 MW
Category 4: 800 MW

An application covers the project’s category, ownership, precise location, facility size, and whether it meets additional selection criteria. Applicants upload project maturity documentation and complete portal attestations. Community solar or wind subscription projects must attest that subscribers have received or will receive consumer disclosures about their legal rights and protections. Each person filing on behalf of an organization needs a Login.gov account.

Timing After You Get an Allocation

Two rules govern the calendar. First, the facility cannot be placed in service before the allocation is granted; a project that starts commercial operations first is ineligible. Second, the facility must be placed in service within four years of the allocation date, or the allocation is forfeited.⁸ Once the facility is operational, the credit is claimed on IRS Form 3468, Part V, for the tax year the property is placed in service.⁷

Stacking with Other Bonuses

Two other Inflation Reduction Act adders stack with the LMI adder:

Domestic content bonus: 10 points for projects sourcing steel, iron, and manufactured components from U.S. suppliers.⁹
Energy community bonus: 10 points for projects in communities historically tied to fossil fuel employment or with retired coal facilities.²

A project hitting the 30 percent base, a 20 point LMI adder, and both other bonuses reaches 70 percent. Doing all of that on a single sub-5 MW facility is rare in practice, but it is why site selection and sourcing decisions matter early.

Getting Paid If You Don’t Owe Tax

Tax credits are only useful to entities that owe tax, which is a problem for many of the organizations most likely to build in low-income communities. Two workarounds exist.

Under Section 6417, tax-exempt organizations, state and local governments, tribal governments, Alaska Native Corporations, and rural electric cooperatives can elect direct pay and receive the credit as a cash payment from the Treasury.¹⁰ Corporations formed under the Indian Reorganization Act are treated as part of the parent tribal government for this purpose.

For-profit developers who cannot use the full credit can sell it to an unrelated taxpayer under Section 6418. The buyer pays cash, the proceeds are not taxable to the seller, and the buyer cannot deduct the purchase price or re-transfer the credit. The transfer election is irrevocable and must be made by the tax return due date for the year the credit was earned.¹¹

Five-Year Recapture

Because the LMI adder rides on the Investment Tax Credit, the Section 50 recapture rules apply to the full credit including the bonus portion. If the property is sold, taken out of service, or otherwise stops qualifying within five years, a declining share of the credit is clawed back:¹²

Year 1: 100 percent recaptured
Year 2: 80 percent
Year 3: 60 percent
Year 4: 40 percent
Year 5: 20 percent

After the fifth full year, the risk drops to zero. Tax equity deals and any planned ownership changes need this schedule built into the financial model from the start.

1
Internal Revenue Service. Clean Electricity Low-Income Communities Bonus Credit Amount Program
2
Internal Revenue Service. Clean Electricity Investment Credit
3
Office of the Law Revision Counsel. 26 USC 48E – Clean Electricity Investment Credit
4
U.S. Department of Energy. Clean Electricity Low-Income Communities Bonus Credit Amount Program
5
Federal Register. Guidance on Clean Electricity Low-Income Communities Bonus Credit Amount Program
6
Internal Revenue Service. Prevailing Wage and Apprenticeship Requirements
7
Internal Revenue Service. Instructions for Form 3468
8
Federal Register. Additional Guidance on Low-Income Communities Bonus Credit Program
9
Internal Revenue Service. Domestic Content Bonus Credit
10
Office of the Law Revision Counsel. 26 USC 6417 – Elective Payment of Applicable Credits
11
Office of the Law Revision Counsel. 26 U.S. Code 6418 – Transfer of Certain Credits
12
Office of the Law Revision Counsel. 26 USC 50 – Other Special Rules