Domestic Content ITC Calculator
Section 232 Polysilicon Domestic Content Blending Calculator
The ITC 10% domestic content bonus is still worth millions. Section 232 polysilicon raised the price of every imported module, but it did not change the math on domestic content, and blending is still the cheapest way to reach it.
Use the free interactive tool below to see what the bonus is worth for your project with post-232 pricing, and what the least expensive module mix is that gets you there.
Once you are ready to select modules that meet your domestic content requirements, Anza can provide the data and blending tool you need through our solar platform. You can see specific module or module-blend pricing, BOS cost impacts, production benefits and more. If you need purchasing support, our expert Advisory Services team, which has supported over 10 GW of POs, can ensure you have the best strategy, deal, and contract negotiations.
Access the Calculator
Post 232 Domestic Content Guidelines
How to use the domestic content calculator
1Set your project safe harbor year and system type
Pick the year your project safe harbors (starts construction) under IRS rules, and your system type. The domestic content threshold auto-sets per the IRS phase-in, measured in points: 40 for 2024, rising to 55 for 2027 and later. Typical domestic content racking and inverter points for your system type are credited automatically.
2
Enter your project’s fair market value
This is the project value your 10% bonus is computed on, in dollars per watt. Starting values are pre-filled by system type ($3.00/W for trackers and fixed tilt, $3.25 for string inverter, $3.50 for MLPE); adjust to your project.
3
Compare blending on and off
On shows the minimum domestic module share blended with imports to reach the threshold. Off shows what it would cost to go with a domestic cell instead. When racking and inverters alone clear the bar, the tool tells you that no domestic modules are needed.
3
Read your result
The tool always picks the least expensive qualifying module option, shows the blend ratio, and nets the 10% ITC bonus against the domestic content module or blend premium over imports. The headline number is net project value gained per watt. A red flag means that combination cannot reach the threshold with modules alone and would need additional domestic content, such as racking, trackers, or inverters.
Glossary
Domestic content points: the IRS measures domestic content as a percentage of qualifying project costs; the calculator shows these as points
Domestic Lite (DC Lite) module: modules with at least one U.S. made component,s but no U.S. made cells
Domestic Cell module: modules featuring U.S.-made cells and assembly
Disclaimer
Pricing reflects Anza’s market estimates as of August 2026, drawn from platform pricing across 40 module suppliers: imported modules at $0.38 per watt, DC Lite at $0.43, and DC Cell at $0.58. Racking and inverter point assumptions reflect typical domestic content for each system type. Every project’s point math is its own, so treat results as directional estimates, not tax advice. The domestic content bonus also requires all structural steel and iron to be melted and poured in the United States, and capturing the full credit depends on meeting prevailing wage and apprenticeship requirements. Where applicable, confirm FEOC sourcing status as well.
Please note that Anza does not collect or use any project-specific information that you enter.