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Calculate your ITC stacking, MACRS depreciation, and state incentives. See your net cost and payback period instantly.
A $500,000 commercial solar system can receive up to $350,000 in combined tax credits (70% max ITC), plus $50,000+ in MACRS depreciation value, bringing net cost to under $100,000. Most businesses with 30% ITC + MACRS see 40-55% reduction in total cost.
100 kW
System Cost
$165K
Federal ITC
-$66K
Net Cost
$24K
Payback
0.6 yrs
Annual Savings
$39,210/yr
25-Year ROI
4976%
CO2 Offset
1225 tons
System Cost x 30% (with prevailing wage) = Base ITC. Example: $500,000 x 30% = $150,000
Domestic Content (+10%): $50,000 | Energy Community (+10%): $50,000 | Low-Income (+10-20%): $50,000-$100,000
Depreciable Basis = System Cost - (ITC x 50%). Apply 5-year MACRS + 20% bonus. Tax savings = Depreciation x Tax Rate.
$500K system with full stacking: $500K - $250K (ITC) - $87K (MACRS) = $163K net cost (67% reduction)
Start with your system cost, then apply the base 30% ITC. Add applicable bonuses: +10% domestic content, +10% energy community, +10-20% low-income. Then calculate MACRS depreciation on the adjusted basis.
Our team calculates the exact incentive stack for your project. Free, detailed financial analysis.