Nothing at tax level, at either level
The 30 percent federal Residential Clean Energy Credit under Section 25D expired for property placed in service after December 31, 2025. A cash or loan purchase now receives no federal tax credit.
Kansas has no state income tax credit for residential solar, so nothing at state level replaced it. National guides describing a federal plus state stack are describing other states.
Section 48E, the commercial credit, survives at 30 percent for third-party owners under leases and power purchase agreements. That is the only route by which a 30 percent federal credit touches a Topeka rooftop, and the provider claims it.
Evaluate that as a rate rather than as a credit. Ask what the provider claims, what portion reaches you through the rate offered, and for the side-by-side against a cash purchase.
What Kansas has instead
Full retail-rate net metering credits for systems at or below 150 percent of average annual consumption, which is a generous relative allowance by national standards.
Credits that carry forward month to month rather than being settled each period, letting a summer surplus offset a winter deficit, though they expire annually on March 31.
No solar-specific monthly fee, after the Kansas Supreme Court struck down Corporation Commission approval of additional Evergy charges on solar owners in early 2020.
And the electricity you stop buying, which is the largest term and the one that does not depend on any programme staying open.
Where the diligence belongs
On the production estimate. Ask for the annual figure in kilowatt hours per year with the data source named, location-specific irradiance for your address, and what the model assumed about tree growth over the system life.
Ask what module temperature and coefficient it applied, since Kansas summers are hot and panels lose efficiency as they heat, and what soiling and annual degradation it assumed.
On the rate. Ask which figure the projection used, check it against a recent bill, and confirm fixed monthly charges were included since they do not fall with consumption.
And on the sizing, which under an annual expiry rule is the largest lever you control. Ask for the credit balance tracked to March 31.
What belongs in the projection, and what does not
Strike the federal residential credit from any quote showing it, and do not expect a state credit in its place, because Kansas has none.
Rebuild from retail-rate net metering credit under the 150 percent sizing rule, carried forward monthly and expiring March 31, with no solar-specific monthly charge.
Ask your county appraiser how residential solar is treated for property assessment at your address, since that is administered locally.
Then add the electricity you stop buying at your actual rate, with fixed charges included, and ask for the whole thing in writing with each line named.