It depends
South Dakota solar cancellation rights
Until midnight of the third business day after the transaction date — SDCL 37-24-5.3 and 37-24-5.4 (door-to-door sales; 10-point boldface notice plus oral notice required). Notice form updated by 2019 SB 20 (electronic notice; revised 'business day' definition). FTC Cooling-Off Rule (16 CFR Part 429) applies nationwide: 3 business days for door-to-door sales of $25+.
The law
- SDCL 37-24-5.1–37-24-5.7 — door-to-door sales ('Three Day Right to Cancel'; notice criteria)
- SDCL 37-24-6 — deceptive acts or practices (door-to-door notice failures are deceptive acts)
Contract notes
DSIRE analysis (July 2025) lists South Dakota among states where residential third-party PPAs are either restricted or have no known offerings.
What to do next in South Dakota
- Read your contract's cancellation clause tonight. Compare it against the state window: Until midnight of the third business day after the transaction date — SDCL 37-24-5.3 and 37-24-5.4 (door-to-door sales; 10-point boldface notice plus oral notice required). Notice form updated by 2019 SB 20 (electronic notice; revised 'business day' definition). FTC Cooling-Off Rule (16 CFR Part 429) applies nationwide: 3 business days for door-to-door sales of $25+.
- If the company never gave you a cancellation form, your federal 3-day clock may never have started — that's the loophole in our cooling-off guide.
- Past the window? Shift to the complaint path: where to file, and check whether savings were misrepresented (guide).
Get the notice written for you. The $39 SolarEscape Kit generates a cancellation letter citing SDCL 37-24-5.1–37-24-5.7 — door-to-door sales ('Three Day Right to Cancel'; notice criteria), with your dates filled in — plus the complaint kit and bankrupt-installer playbook.
Not legal advice. This tool provides general information based on state statutes and the FTC Cooling-Off Rule as of October 2026. Laws change and every contract is different. For advice about your specific situation, talk to a consumer attorney or your state attorney general's office. We can't promise you can cancel — nobody can. What we do: tell you where the cancellation windows are, and what to do when they're closed.
Sources: law.justia.com, consumer.sd.gov, www.hudsoncook.us · Verified 2026-10-10