Missouri Solar Incentives (2026): Monthly Bill Credits, No State Rebate

What can a Missouri solar home actually collect?

Three things are real for a home system today. Only one of them is a payment, and only in one city.

The federal tax credit is not on this list. It ended for home systems finished after December 31, 2025. Your utility’s name is at the top of your electric bill.

How does Missouri count the solar power you send to the grid?

Missouri uses net metering: your utility measures the power you buy and the solar power you send out, and bills you for the difference. The count restarts with every bill.

Inside one billing month the trade is one for one. A kWh you send out at noon cancels a kWh you buy that night. This is where almost all the value is.

If you send out more than you buy in a month, the extra does not roll over as kWh. It becomes a small dollar credit on your next bill. The law sets that credit at the utility’s avoided fuel cost. That is what the utility saves on fuel by not making that power itself. It is far below the price you pay for power.

Example: 100 kWh of leftover power in a summer month earns $3.84 with Ameren Missouri and $1.90 with Evergy Missouri Metro.

The credit does not last. It expires after 12 months, or on the day you close the account, whichever comes first. Nothing is paid out.

Watch out: On three Ameren Missouri time-of-use plans (plans where the price changes by time of day), the count is done inside each time period, not over the whole month. They are Smart Saver, Overnight Saver and Ultimate Saver. Solar power sent out at midday then does not cancel power bought in the evening peak. Ask Ameren which plan you are on before you size a system.

What do Ameren Missouri, Evergy and Liberty credit for leftover power?

These are the rates for power left over at the end of a month. Each comes from the utility’s tariff, its official price sheet filed with the Missouri Public Service Commission.

Co-ops and city utilities must offer net metering too, but each sets its own surplus rate. City Utilities of Springfield, for example, resets its rate every six months. We list no figure for utilities whose current rate we could not read on an official page.

Watch out: A quote that values every kWh at your retail price is wrong for the surplus months. Ask the installer to price leftover power at your utility’s rate above. The large private utilities must restate these rates in 2027.

Sales tax and property tax on home solar in Missouri

Sales tax: no, when a company builds the system. Property tax: there is no exemption you can rely on.

What does Columbia Water & Light add for its customers?

The city utility in Columbia runs the only solar rebate we found in Missouri. It serves one city, so most of the state cannot use it.

• Rebate: $500 per kW of solar capacity, multiplied by a “peak factor” of up to 1.1 for panels placed to make power at peak hours. Example: a 5 kW system gets $2,500, or up to $2,750 with the top factor. Arrays that face north get no rebate.
• Credit for extra power: your full electric rate, when the utility keeps the renewable energy credits (RECs, the proof that your power came from solar). Unused credits carry forward month to month.
• Low-interest loan: up to $15,000 for a home system, at 1% interest for up to 3 years, 3% for 4 to 5 years, or 5% for 6 to 10 years. It has insulation and payment-history rules, and it must be paid off if you sell or refinance.

Watch out: Get the utility’s approval before you install. The rebate and the net metering agreement must both be approved first. The system may be sized to no more than 110% of your average use over the last 3 years, and you must own it. Any credit left after the March bill is removed without payment. Ask Columbia Utilities to confirm the current rebate amount in writing before you sign.

What if you rent in Missouri, or your association objects?

• Utility solar subscriptions are not a saving. Evergy, Liberty and Columbia Water & Light sell shares of their own solar farms. Evergy says its Missouri subscription does not lower your bill and adds about $5 to $15 more a month for one share. Liberty’s first solar farm is fully subscribed and has a wait list. Treat these as a way to buy local solar power, not as an incentive.
• An association cannot ban rooftop panels. Since January 1, 2023, deed restrictions and homeowners’ association rules may not limit or prohibit solar panels on a roof you own and maintain (RSMo 442.404). An association may set reasonable placement rules, as long as they do not block the system or raise its cost. The law does not cover ground-mounted arrays or condominium roofs that are shared.

You are unlikely to get full value in Missouri if

• Your system is sized to your whole year. Spring and fall surpluses earn 1.90 cents to 3.84 cents per kWh at the large private utilities, then expire after 12 months.
• You are on an Ameren Missouri Smart Saver, Overnight Saver or Ultimate Saver plan. Power is counted inside each time period, so midday solar does not cancel evening use.
• You plan to buy the parts yourself. The sales tax exemption is only for a company that builds the system and sells or leases it to you.
• You are selling the home with credits on the account. Credits end when the account closes. The buyer must file a new net metering application with the utility.
• You live in Columbia and install before approval. Columbia Water & Light must approve the rebate and the agreement first. North-facing arrays get no rebate.

Missouri paperwork, from quote to first bill

1. Before you sign: get the 12-month table. Monthly production next to monthly use, with leftover power priced at your utility’s surplus rate.You, with your installer.
2. Before installing: apply to your utility. The application covers interconnection, which is the utility’s permission to connect, and the net metering agreement. It needs a wiring diagram. The utility must answer within 30 days for a system of 10 kW or less, and within 90 days for a larger one.Your installer files. You sign.
3. Over 10 kW: arrange insurance. At the large private utilities, a larger system needs at least $100,000 of liability insurance. Smaller systems need none.You.
4. Columbia only: get the rebate approved. Approval comes before the install. After the final inspection you send the installer’s invoice, and the utility pays the rebate.You, with your installer.
5. Switch on only after written approval. Then read your first bills. Check that leftover power is credited at the rate in the table above.You. Your utility applies the credits.

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