For homeowners · Checked November 5, 2026
Colorado's solar sales law: your cancellation window and rights
For a home solar or battery purchase agreed on or after July 1, 2026, you have at least three business days to cancel without financial penalty, and that time doesn't start until the required welcome call happens. Leases and power-purchase agreements are less clear, so read your contract.
Work out your cancellation date
Leave blank if it hasn't happened.
Estimate, not a promise. Source: SB25-299, Sections 6-1-1804 and 6-1-1809, checked November 5, 2026. The law doesn't define "business day," so this counts every day except Sundays to give the earlier, safer date. Your contract may give you longer. This tool leaves out federal holidays and doesn't review your contract. Your dates stay in your browser.
Who the law covers
The law applies to residential solar and battery agreements between a solar sales company and a consumer, entered into on or after July 1, 2026. It doesn't cover systems sold with new construction (C.R.S. 6-1-1802).
How cancellation works
- Sales: the agreement must give at least three business days after you receive the initial signed agreement to cancel without financial penalty. The required notice says you may cancel before midnight of the third business day (C.R.S. 6-1-1804(5)).
- Deposits: a nonrefundable deposit collected before you receive the signed agreement can't be more than $100 (C.R.S. 6-1-1804(5)(a)).
- Welcome call: the cancellation period doesn't begin until the call is conducted (C.R.S. 6-1-1809(3)).
- Leases and PPAs: the cancellation subsection says "in the case of a sale," while the welcome call section describes the right more generally. If you have one of these agreements, check its cancellation terms and ask a lawyer if the answer matters.
What the welcome call must cover
- Price
- System size in kilowatts DC and AC, and any storage capacity
- That solar won't provide backup power unless paired with storage
- The length of any lease or power-purchase agreement
- Your right to cancel
- A reminder to review the disclosure form and agreement
- System costs and financing terms
The call must be in the language used during the sales presentation (C.R.S. 6-1-1809).
What to expect in writing
You should get a disclosure form of no more than four pages, in type no smaller than 10 points. Among other things, it covers contact details, payment schedule, system assumptions, any savings basis, outage operation, roof warranty effects, and a notice that the company isn't affiliated with your utility (C.R.S. 6-1-1803).
The seller must also provide at least four years of warranty coverage for roof penetrations and workmanship, and keep your signed agreement for at least four years (C.R.S. 6-1-1810 and 6-1-1808).
Check what you heard at the door
| If you hear | What to know |
|---|---|
| "We're with your utility." | A solar sales company can't say it's affiliated with, sponsored by, or approved by your utility without the utility's written consent (C.R.S. 6-1-1807(3)). Ask to see that consent. |
| "This is a state program." | The same limit applies to state incentive programs, unless the state agency gave written consent (C.R.S. 6-1-1807(4)). |
| "You'll get the 30% tax credit." | The federal homeowner credit isn't available for property placed in service after December 31, 2025. |
| "You'll keep your lights on in an outage." | The welcome call must say solar won't provide backup power without storage (C.R.S. 6-1-1809(2)(c)). Ask exactly what equipment is in the agreement. |
| A visit before 9 a.m. or after 8 p.m. | Sales visits are limited to 9 a.m. to 8 p.m. unless you schedule another time or a state law or local rule says otherwise (C.R.S. 6-1-1806). |
| A visit despite your sign | A salesperson may not visit a home with a posted "no solicitation" sign (C.R.S. 6-1-1806(5)). |
Questions to ask before you sign
- What is the total price, and what would it be for cash?
- Where is the first-year production estimate from, and what shade study supports it?
- What utility rate and yearly increase does the savings estimate assume?
- Who owns the system, and who keeps any credits?
- Who do I call for repairs and warranty claims if your company closes?
- How does this affect my existing roof warranty?
- When will the welcome call happen?
If something went wrong
Violations are treated as deceptive trade practices under Colorado consumer law (C.R.S. 6-1-1811). You can file a complaint with the Colorado Attorney General, though that office can't give individual legal advice. If you need to cancel, follow your contract's instructions and keep proof of when you sent notice.
This page explains the law and isn't legal advice.
Sources
- SB25-299 bill page
- SB25-299 signed act
- IRS residential clean energy credit
- Colorado Attorney General, file a complaint
Checked November 5, 2026.