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Commercial Solar Incentives for 2026

Section 48E base credit at 30 percent. Domestic content and energy community adders up to 10 percent each. MACRS with 100 percent bonus depreciation. Construction must begin by July 4, 2026.

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Commercial solar projects must begin construction by July 4, 2026 to qualify for the 30 percent Section 48E federal tax credit. After that date, the system must be placed in service by December 31, 2027.

Schedule Before the Deadline
Section 48E base credit rate (commercial, 2026)
30
Stacked credit with domestic content + energy community adders
Up to 50
MACRS accelerated depreciation schedule for commercial solar
5
Non-FEOC component threshold required for credit eligibility (2026)
40

The Section 48E commercial solar Investment Tax Credit remains active at a 30 percent base rate for projects where construction begins by July 4, 2026. Two stacking adders -- domestic content and energy community -- can increase the effective credit to 50 percent. MACRS 5-year accelerated depreciation, restored 100 percent bonus depreciation, Direct Pay for tax-exempt entities, and C-PACE financing round out the commercial incentive stack. FEOC compliance is required for any project claiming the credit in 2026.

H.R. 1 (One Big Beautiful Bill Act, signed July 4, 2025) preserved and modified the commercial credit. The 40 percent non-FEOC component threshold applies in 2026 and escalates in subsequent years. ITC transferability allows owners to sell the credit to third parties. Direct Pay (Section 6417) allows qualifying tax-exempt entities to receive the credit as a cash payment. C-PACE financing is available in more than 32 states and requires no upfront capital. Verify all figures with your tax advisor.

  • The Section 48E credit is real -- but the clock runs through July 4, 2026.

    H.R. 1 (the One Big Beautiful Bill Act) preserved and modified the commercial Section 48E credit. For systems where construction begins by July 4, 2026, the base rate is 30 percent with a placed-in-service window through December 31, 2030. We help commercial buyers understand every component of their incentive stack before construction begins.

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  • MACRS + bonus depreciation: the second lever.

    Solar qualifies for 5-year MACRS accelerated depreciation. 100 percent bonus depreciation was restored January 19, 2025. Combined with the 48E credit, the year-one federal benefit is typically 45 to 55 percent of project cost. Your tax advisor should verify based on your specific tax position.

  • Direct Pay, transferability, and C-PACE.

    Tax-exempt entities use Direct Pay to receive the credit as cash. Taxable entities with insufficient liability can transfer the credit. Property owners in 32-plus states can use C-PACE for no-upfront-capital financing. Each path has specific requirements.

How the commercial solar process works

  1. Step 1: Baseline Eligibility Review

    We assess your project against the 48E base rate, FEOC compliance threshold, and any applicable adders: domestic content, energy community, or low-income.

  2. Step 2: MACRS and Bonus Depreciation Analysis

    We work with your tax advisor to model the 5-year MACRS schedule and 100 percent bonus depreciation restoration, calculating the combined year-one federal benefit.

  3. Step 3: Financing Structure Review

    C-PACE, ITC transferability, and Direct Pay paths are evaluated based on your entity type and project structure.

  4. Step 4: Design and Construction Timeline

    System design begins construction before the July 4, 2026 deadline. Your tax advisor receives the documentation needed for credit filing.

Financing options for commercial solar

The right structure depends on your entity type, tax position, and capital preference. The table below illustrates the main options; your specific project will require a detailed analysis. Figures are illustrative; verify with your tax and financial advisors.

Commercial solar financing paths -- illustrative comparison. Verify with your tax advisor.
Category Financing Path Upfront Capital 48E Credit Path Best For Key Considerations
Cash Purchase Cash Purchase Full project cost Owner claims 48E + MACRS directly Businesses with tax liability and capital Highest long-term return; requires sufficient tax liability
C-PACE Financing C-PACE None Owner claims 48E + MACRS; repays via property assessment Property owners in 32+ PACE states Repayment attaches to property; may transfer at sale
ITC Transfer / Sale ITC Transfer Project cost (offset by credit sale proceeds) Owner sells 48E credit to third party at a discount Owners with insufficient tax liability to use full credit Tax attorney required; credit sold at 80-95 cents per dollar (market-rate)
Direct Pay (tax-exempt entities) Direct Pay Full project cost or financed IRS pays credit value in cash to qualifying entity Nonprofits, schools, municipalities IRS pre-registration required; entity must own (not lease) the system
Power Purchase Agreement PPA None Third-party developer claims 48E; may pass savings via lower PPA rate Entities that cannot or prefer not to own the system Entity does not own system; Direct Pay not available; savings depend on PPA terms
  1. Figures are illustrative. Actual credit amounts, depreciation schedules, and financing terms depend on project specifics.
  2. C-PACE availability varies by state. Confirm eligibility with a PACE lender.
  3. ITC transfer market rates vary. Consult a tax attorney experienced in clean energy credits.
  4. Direct Pay requires IRS pre-registration. Consult your legal and financial advisors.
  5. PPA legality varies by state. Verify in your jurisdiction before proceeding.

See how the commercial incentive stack applies to your facility.

Our commercial ROI calculator models your Section 48E credit, MACRS depreciation, and payback period.

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What commercial clients say

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Common questions from commercial buyers

What is the Section 48E base credit rate for 2026?
The base rate is 30 percent of the eligible project cost for systems where construction begins by July 4, 2026, with a placed-in-service window through December 31, 2030. After July 4, 2026, systems must be placed in service by December 31, 2027. Consult your tax advisor to confirm your project timeline and eligibility.

What adders can stack on top of the 30 percent base rate?
Two adders are available and can stack with each other: a 10 percent domestic content adder (when qualifying US-manufactured components are used) and a 10 percent energy community adder (for projects in qualifying census tracts as defined by the Department of Energy). Stacking both can push the effective credit to 50 percent. FEOC compliance is required for any project claiming the credit in 2026.

What is FEOC compliance and why does it matter in 2026?
FEOC stands for Foreign Entity of Concern. The 2026 threshold requires that at least 40 percent of a solar system's component value come from non-FEOC sources for the system to be eligible for the Section 48E credit. This percentage escalates in later years. We review FEOC status for every equipment recommendation on commercial projects.

How does MACRS bonus depreciation change the math?
5-year MACRS accelerated depreciation was paired with 100 percent bonus depreciation, restored January 19, 2025. This allows businesses to deduct the full depreciable basis (project cost minus 50 percent of the credit) in year one. Combined with the 48E credit, the year-one federal benefit typically reaches 45 to 55 percent of project cost. Verify with your tax advisor.

What is ITC transferability?
ITC transferability allows the owner of a solar project to sell the Section 48E credit to a third party. This is useful when your business does not have sufficient tax liability to fully use the credit in the year it is generated. The buyer receives the credit at a discount; you receive cash. Coordination with a tax attorney is required.

What is C-PACE financing and who can use it?
C-PACE (Commercial Property Assessed Clean Energy) allows property owners to finance solar through a property tax assessment. It is available in more than 32 states. No upfront capital is required; the repayment is structured as a property tax line item and may transfer with the property. Confirm state availability with an advisor.

What is Direct Pay and who qualifies?
Direct Pay (Section 6417) allows qualifying tax-exempt organizations and government entities to receive the Section 48E credit as a direct cash payment from the IRS rather than as a tax credit. Qualifying entities include 501(c)(3) nonprofits, schools, and municipalities. The IRS pre-registration process must be completed before the credit is claimed.

The Section 48E construction deadline is July 4, 2026.

Contact us now to determine whether your project can meet the construction-start deadline. No obligation, no shared leads.

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