Missouri at a glance

Missouri has no solar-specific sales law. Financed solar sold at your home may be canceled within three business days under the state's home solicitation law, and the federal Cooling-Off Rule covers cash sales. The Attorney General has used the Merchandising Practices Act against solar sellers, including a lawsuit against Power Home Solar. Net metering credits excess power at a low rate.

If you were misled, you have options

Being told your bill would disappear, that the system was free, that a tax credit would pay off the loan, or that you were only signing up for an inspection can all matter, even long after a cancellation window has closed.

  1. Your state's consumer protection law. Every state has a law against deceptive and unfair business practices. False promises about savings, costs, tax credits, or who you were dealing with may fall under Missouri's law.
  2. Missing paperwork and disclosures. Many states require specific disclosures and a written cancellation notice. If you never received them, a deadline may not have started, or the contract may have other problems.
  3. Your lender may share responsibility. When a seller arranges your financing, federal rules often let you raise the same claims against the lender that you have against the seller, up to the amount you paid. Check your loan for a notice about the FTC Holder Rule.
  4. Official complaints. Complaints to Missouri's agencies are free, create a record, and can lead to mediation or an investigation.
  5. Professional help. A solar attorney or solar exit company can review your documents and tell you which of these options fit your situation.

Not sure which option fits? Tell us what happened and we will help you see your options. It takes about two minutes.

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Your right to cancel

Missouri cancellation window

3 business days after signing

Missouri's home solicitation law lets you cancel a consumer credit sale of goods or services that a seller personally solicited at your home, where you signed at home, until midnight of the third business day after you sign. A financed solar purchase sold door to door may be covered.

Source: RSMo 407.705 · Checked November 7, 2026

Conditions that matter

  • Cancel by written notice to the seller's address in the agreement. No special form is needed, and a mailed notice counts once it is in the mailbox. Business days exclude Saturdays, Sundays, and legal holidays. If the seller did not give you the required Notice of Cancellation, you can cancel in any manner until it does.
  • Within 10 days after you cancel, the seller must return your payments and any note you signed, marked canceled. If the seller does not pick up delivered goods within 20 days, you can keep them.
  • Does not apply to sales that follow negotiations at the seller's business, or to emergency purchases you requested where the seller had already substantially begun work in good faith.

The state law only covers consumer credit sales, so a cash purchase may not be covered. The federal FTC Cooling-Off Rule generally gives you three business days to cancel a home sale of $25 or more, including cash sales, with a refund within 10 days. Missouri has no solar-specific cancellation law as of this check.

Canceling one agreement does not always cancel another. A separate loan, lease, or power purchase agreement can have its own terms, so check each document you signed. If the sale was made in Spanish or another language, read your rights when a contract is not in your language. To compare deadlines, see the cancellation period in every state.

Laws that protect you in Missouri

These are the state laws that come up most often in solar disputes here. Each one links to the official text or the agency that enforces it.

RSMo 407.705

Home solicitation sales

For consumer credit sales solicited at your home, you can cancel until midnight of the third business day after signing. The seller must return your payments and any note within ten days.

How your utility credits solar in Missouri

Excess credited at avoided fuel cost

Missouri's Net Metering and Easy Connection Act requires utilities to offer net metering. Power you use offsets your bill, but excess sent to the grid in a billing period is credited on your next bill at no less than the utility's avoided fuel cost, a rate far below retail, and leftover credits don't carry forward indefinitely.

Source: RSMo 386.890

Check your Missouri solar contract

Pull out your paperwork and look for these. Anything missing is worth noting in a complaint or showing to an attorney.

  • If you financed through the seller, you received a Notice of Cancellation.
  • If you paid cash at home, you know the federal three business day Cooling-Off Rule applies.
  • Your savings estimate credits exports at avoided cost, not retail.
  • The installer holds the electrical licenses your city or county requires.

Where to get help in Missouri

These are official agencies. Filing a complaint is free. An agency can investigate or mediate, but most cannot act as your lawyer or guarantee a refund.

Installer licensing

Missouri Division of Professional Registration, Office of Statewide Electrical Contractors

Issues an optional statewide electrical contractor license. Whether your installer needs a license depends on your city or county, so check with your local building department too.

Visit the official page 573-522-3280

Consumer protection

Missouri Attorney General, Consumer Protection

Mediates complaints and enforces the Merchandising Practices Act. It cannot give legal advice or represent you.

Visit the official page 1-800-392-8222

Utility billing and service

Missouri Public Service Commission, Consumer Services

Contact your utility first. The Commission does not regulate the rates of municipally owned utilities or rural cooperatives.

Visit the official page 1-800-392-4211

Before you contact anyone

  1. Gather every document you signed. The sales or installation agreement, any loan, lease, or power purchase agreement, and any change orders.
  2. Identify each company. The seller, installer, lender, and current servicer may be different businesses. Your latest statement shows who services your account now.
  3. Write down the timeline. When you were contacted, when you signed, when work started, and every promise made about savings or cost.
  4. Keep proof of every notice. Save emails, certified mail receipts, and the date you sent anything.

Guides for your situation

Questions to ask

  • Which agreement am I trying to cancel or change, and who is the other party to it?
  • What does my agreement say about cancellation, notice, and where to send it?
  • Did the seller give me the cancellation notice and disclosures required in my state?
  • Is my loan separate from my installation contract, and what happens to it if the contract is canceled?
  • Was a dealer fee built into my loan? Estimate it with our calculator.

Missouri solar questions

Does Missouri have a solar consumer protection law?

Not a solar-specific one. Missouri's Merchandising Practices Act prohibits deceptive sales, and the home solicitation law covers financed sales made at home.

Why is my solar credit so small in Missouri?

Excess power is credited at no less than the utility's avoided fuel cost, which is much lower than what you pay per kilowatt-hour.

Who do I complain to?

The Missouri Attorney General's Consumer Protection unit. Utility issues go to the Public Service Commission.

National resources

General information, not legal advice.

This page can’t tell you whether a right applies to your agreement. For that, contact a licensed attorney or the agencies above.

Other states

Solar rules change at the state line. See every state and the review status of each.