Colorado's real incentives sit in its tax exemptions, not a state credit
The state credit is gone, but not much else changed
Colorado's state solar income tax credit expired at the end of 2013, and it hasn't been renewed since. That's a longer-standing fact than the 2026 federal changes, so it's not a new loss for Colorado homeowners the way it is in some states. What remains is a still-solid combination of tax exemptions, detailed further in the Colorado Division of Property Taxation's own Assessors' Reference Library, and one of the country's strongest net metering policies. Separately, Colorado does offer a 10% state income tax credit specifically for qualifying battery storage systems, claimed on Form DR-1307, though as of this writing it's set to expire December 31, 2026 with no announced extension, so it's worth confirming its status if a battery is part of your plan.
Two tax exemptions that add up quickly
Colorado exempts residential solar equipment and installation from its 2.9% state sales tax, saving roughly $1,200 to $1,600 on a typical installation, though local district taxes of up to 5.65% can still apply separately. On the property tax side, an independently owned residential solar electric generation facility is excluded from assessment under the household furnishings exemption, C.R.S. § 39-3-102, not the statute number some guides cite. Commercial and business-owned systems fall under a separate business personal property exemption instead. Use the property tax exemption savings calculator for a multi-year projection of this benefit.
Full retail net metering is the real centerpiece
Colorado requires investor-owned utilities like Xcel Energy to credit residential solar customers at the full retail rate for every kilowatt-hour exported to the grid, with an annual true-up settlement rather than losing unused credits monthly. This is a meaningfully better deal than the below-retail net billing structures several other states have moved to. Smaller utilities with fewer than 5,000 customers aren't required to participate, and co-op or municipal utilities may cap eligible system size at 10 kW, so confirm your specific utility's rules. Check your remaining federal status separately as well.
Utility rebates come and go
Xcel Energy's Solar*Rewards program and similar utility rebates run on annual budget cycles that can be fully subscribed at different points in the year, sometimes reopening the following January. Black Hills Energy's program tends to run especially oversubscribed. Check the rebate deadline tracker to stay on top of application windows if you're pursuing a utility rebate on top of the state-level incentives calculated here. Your rebate total changes what a loan costs each month, and the combined loan and rebate timing tool shows that payment once you enter both figures.