Missouri Solar Incentives 2026: Complete Guide to Ameren, Evergy & Net Metering

Missouri occupies a middle ground in the solar landscape: better sun than the upper Midwest, lower electricity rates than the coasts, and a patchwork of utility policies that vary significantly depending on whether your bill comes from Ameren Missouri or Evergy (formerly KCP&L). Getting clear, utility-specific answers before signing a solar contract is essential — and this guide provides exactly that.

The good news: Missouri passed SB 564 in 2021 protecting net metering statewide for investor-owned utilities. The less-good news: net metering credit rates and the absence of a state income tax credit mean Missouri paybacks tend to run 10–16 years depending on your territory and system design. Here is everything you need to know.

Missouri's Solar Resource

Missouri receives more sunlight than most homeowners expect — particularly in the southern half of the state:

City	Peak Sun Hours/Day	Notes
Kansas City (Jackson County)	4.8	Evergy territory, strong resource
St. Louis (St. Louis County)	4.7	Ameren territory, slight cloud cover increase
Springfield (Greene County)	5.0	Highest in state — low latitude, Evergy/rural co-op
Joplin (Jasper County)	5.1	Excellent resource, tornado consideration
Columbia (Boone County)	4.8	University town, Ameren territory
Cape Girardeau	4.9	Southern MO, strong resource

At 4.7–5.1 peak sun hours, Missouri compares favorably with Illinois (4.3–4.7), Michigan (4.0–4.5), and Wisconsin (4.0–4.5). The sun resource is a genuine asset for Missouri solar buyers.

Federal Tax Credit: The Primary Incentive in Missouri

Missouri has no state income tax credit for residential solar. The federal Investment Tax Credit (ITC) is therefore the dominant financial incentive for Missouri homeowners.

26 U.S. Code § 48E — Residential Clean Energy Credit:

30% of total installed system cost, dollar-for-dollar against federal income tax liability
Applies to panels, inverter, racking, wiring, installation labor, and permit fees
Battery storage qualifies at 30% even without panels (standalone battery)
Claimed on IRS Form 5695 for the tax year when installation is complete (Permission to Operate received)
Unused credit carries forward up to 5 years

Federal ITC Dollar Values by System Size (Missouri averages)

System Size	Typical Gross Cost	ITC (30%)	Net Cost After ITC
6 kW	$17,400	$5,220	$12,180
8 kW	$22,400	$6,720	$15,680
10 kW	$27,800	$8,340	$19,460
12 kW	$33,000	$9,900	$23,100

Missouri average installed cost: approximately $2.85–$3.00 per watt before incentives — competitive with the broader Midwest market.

Missouri State Incentives

No State Income Tax Credit

Missouri does not offer a state income tax credit for residential solar installation. This gap is significant compared to neighboring states like Illinois (no state credit either, but strong Shines REC program) or more distant neighbors like South Carolina (25% state credit) or New York (25% state credit, $5,000 max).

Property Tax Exemption: Section 137.100 RSMo

Missouri law exempts the added assessed value of a solar energy system from real property taxation under Section 137.100 RSMo. This is a statutory, statewide exemption — not dependent on county discretion.

How it works: When your solar panels are installed, the county assessor should not include the increased home value attributable to solar equipment in your assessed value for property tax purposes.

Value calculation at Missouri's average property tax rate (0.97%):

Added Home Value	Property Tax Rate	Annual Savings	20-Year Savings
$15,000	0.97%	$145.50/year	$2,910
$20,000	0.97%	$194/year	$3,880
$25,000	0.97%	$242.50/year	$4,850

At St. Louis County rates (1.10%) or Jackson County/Kansas City rates (1.05%), savings are slightly higher. At rural county rates (0.70–0.85%), savings are modestly lower.

Note: Missouri's property tax exemption is real and meaningful — worth $3,000–$5,000 over a 20-year period depending on your county — but implementation consistency varies. Jefferson County, St. Louis County, and Jackson County assessors generally apply the exemption correctly. If your county assessor assesses your solar installation as added value, you have standing to appeal citing § 137.100 RSMo.

Sales Tax: No Statewide Exemption for Residential Solar

Missouri does not offer a blanket sales tax exemption on residential solar equipment. The standard 4.225% state sales tax applies, plus local and county taxes that bring effective rates to 7–10% in major metros.

St. Louis City: ~10.45% effective sales tax
Kansas City: ~8.6% effective sales tax
Springfield: ~8.1% effective sales tax

On a $15,000–$20,000 equipment cost, Missouri sales tax adds $1,050–$2,090 to system cost depending on location. This is a meaningful gap vs. Wisconsin, Illinois, or Oregon where full sales tax exemptions are available.

Important: Under Missouri Department of Revenue rules, solar systems installed as part of a construction contract (i.e., contractor-installed) may be treated as a service contract rather than an equipment sale, potentially reducing sales tax liability. Ask your installer how they structure their invoices.

Ameren Missouri: St. Louis Metro and Central Missouri

Ameren Missouri serves approximately 1.2 million electric customers across St. Louis city and county, parts of St. Charles, Jefferson, Franklin, Boone, and additional central Missouri counties. Ameren Missouri is regulated by the Missouri Public Service Commission (MPSC) and is subject to Missouri's SB 564 net metering protections.

Ameren Missouri Net Metering Rules

Credit rate: Full retail rate — approximately $0.115–$0.130/kWh in 2026 (residential rate varies by tariff; Ameren MO has tiered rates based on usage level)
System size cap: 100 kW for residential/small commercial
Monthly excess: Credits roll month-to-month throughout the year
Annual true-up: Excess credits at year-end are compensated at the avoided cost rate (~$0.030–$0.040/kWh) — a significant step-down from retail credit
Interconnection fee: Approximately $50–$100 one-time fee; typical approval timeline 45–75 days
Billing: Monthly net bill; Ameren MO uses a time-of-use (TOU) option for solar customers

Ameren Missouri Annual True-Up: The Key Design Implication

Unlike states where excess year-end credits carry forward indefinitely, Ameren Missouri zeroes out excess credits at year-end at avoided cost rates. This means:

Don't over-size your system for Ameren Missouri territory. A system that produces significantly more than your annual consumption will waste production credits at $0.03/kWh rather than earning the $0.12–$0.13/kWh retail rate.
Right-size to annual consumption. If your home uses 12,000 kWh per year, size your system to produce 11,500–12,000 kWh. Don't build in 20–30% overproduction.
Self-consumption optimization — smart thermostats, programmable EV charging, daytime appliance use — reduces grid reliance and maximizes the value of every kWh produced.

Ameren Missouri Cost Example: St. Louis 9 kW System

Item	Value
System size	9 kW
Annual production	~10,530 kWh (4.7 peak sun hours × 0.78 PR × 365)
Annual consumption	11,500 kWh (MO residential average)
Self-consumption (72%)	7,582 kWh × $0.125/kWh = $948/year
Net metering export (28%)	2,948 kWh × $0.125/kWh = $369/year
Total annual savings	$1,317/year
Gross system cost	$26,100
Federal ITC (30%)	−$7,830
Property tax exemption (NPV)	−$1,800
Net cost after incentives	$16,470
Simple payback	12.5 years
25-year net savings	~$16,400

Evergy: Kansas City Metro and Western Missouri

Evergy (formed from the 2018 merger of KCP&L and Westar Energy) serves Kansas City metro, eastern Kansas City suburbs, St. Joseph, and much of western and central Missouri. Like Ameren Missouri, Evergy is subject to Missouri SB 564 net metering requirements.

Evergy Net Metering Rules

Credit rate: Full retail rate — approximately $0.115–$0.125/kWh in 2026 for residential customers
System size cap: 100 kW for residential/small commercial
Monthly excess: Credits roll month-to-month
Annual true-up: Excess credits compensated at avoided cost (~$0.025–$0.035/kWh) — same critical design implication as Ameren MO
Interconnection fee: ~$75–$150 one-time; typical approval 45–75 days
Evergy solar program: No utility-specific rebate as of 2026; net metering is the primary benefit

Evergy Cost Example: Kansas City 10 kW System

Item	Value
System size	10 kW
Annual production	~12,264 kWh (4.8 peak sun hours × 0.78 PR × 365 × 0.9 derate)
Annual consumption	12,000 kWh
Self-consumption (75%)	9,198 kWh × $0.122/kWh = $1,122/year
Net metering export (25%)	3,066 kWh × $0.122/kWh = $374/year
Total annual savings	$1,496/year
Gross system cost	$28,500
Federal ITC (30%)	−$8,550
Property tax exemption (NPV)	~−$2,000 (1.05% KC rate on $20K added value)
Net cost after incentives	$17,950
Simple payback	12.0 years
25-year net savings	~$19,450

Kansas City's slightly higher electricity rate vs. St. Louis and the strong 4.8 peak sun hours produce a competitive 12-year payback — among the better outcomes in Missouri despite the absence of a state income tax credit.

Empire District Electric (Liberty Utilities): Southwest Missouri

Empire District Electric (now operating as Liberty Utilities) serves Joplin, Carthage, and surrounding southwest Missouri counties. Empire/Liberty Utilities is an investor-owned utility subject to Missouri's SB 564 net metering mandate.

Net metering credit rate: Retail rate (~$0.115–$0.120/kWh)
Annual true-up: Avoided cost for excess year-end credits
System size cap: 100 kW

Southwest Missouri's excellent solar resource (5.0–5.1 peak sun hours in the Joplin/Springfield area) combined with retail net metering makes this one of the better solar markets in the state, with payback periods approaching 10–11 years for well-sized systems — though tornado resilience is a relevant design consideration (wind-rated racking systems, insurance review).

Rural Electric Cooperatives in Missouri

Missouri has approximately 38 rural electric cooperatives serving about 1 million customers across rural and small-town Missouri. Co-op net metering policies vary:

Association of Missouri Electric Cooperatives (AMEC): Recommends member co-ops offer net metering under SB 564, but co-ops are not directly regulated by the MPSC
Most large co-ops: Offer some form of net metering or buyback, but rates often range from avoided cost (~$0.025–$0.04/kWh) to retail depending on co-op bylaws
Best practice: Contact your co-op directly before purchasing solar; ask specifically whether you receive retail-rate credit or avoided-cost credit for exported power

If your co-op offers only avoided-cost credit, the same self-consumption optimization strategy (battery storage, smart appliance scheduling) that applies to Indiana and TVA territories applies in rural Missouri — prioritize using solar production on-site rather than exporting it.

Energy Community ITC Bonus: 40% in Missouri's Fossil Fuel Communities

Missouri has meaningful Energy Community ITC eligibility, particularly in the southeastern coal region and former lead/zinc mining communities. Qualifying counties include:

New Madrid County (New Madrid Power Plant area)
Knox County (Kirksville area, former coal power infrastructure)
Pemiscot County (Southeastern Bootheel)
St. Francois County (Farmington, former lead mining)
Reynolds County and neighboring southeast Missouri forest counties with former mining employment
Buchanan County (St. Joseph — former manufacturing)

Verify current Energy Community eligibility using the IRS Energy Communities mapping tool, as boundaries are updated periodically based on census employment data.

Energy Community Example: New Madrid County

System Size	Gross Cost	40% ITC	Net Cost
8 kW	$22,400	$8,960	$13,440
10 kW	$27,800	$11,120	$16,680

For a New Madrid County homeowner on a rural co-op with avoided-cost net metering, the 40% ITC significantly compresses payback timelines even when export credit rates are unfavorable.

USDA REAP: Rural Missouri Agricultural Producers

Missouri's rural character makes the USDA Rural Energy for America Program (REAP) highly relevant:

Grants: Up to 50% of eligible project cost (solar + wind + energy efficiency)
Guaranteed loans: Up to 75% of project cost
Combined ITC + REAP can cover 65–75% of system cost for eligible rural businesses
Eligible applicants: Farmers, agricultural producers, rural small businesses
Missouri USDA Rural Development offices: Columbia, Sikeston, Springfield, St. Joseph administer applications

For Missouri farms in Boone, Cooper, Saline, Pettis, Henry, or other major agricultural counties, REAP is the highest-leverage financing tool available — particularly for grain operations and livestock producers seeking to offset propane or electricity costs.

PACE Financing in Missouri

Missouri has a Commercial PACE program (C-PACE) for commercial and agricultural properties, administered under the Missouri PACE Act. Residential PACE (R-PACE) is not available statewide as of 2026. Some Missouri municipalities have piloted limited residential clean energy financing programs; check with your city or county government.

Missouri vs. Neighboring States: Solar Comparison

State	Net Metering	State Credit	Sales Tax Exemption	Avg. Electricity Rate	Typical Payback
Missouri (Ameren/Evergy)	Retail rate (SB 564)	None	No	$0.115–$0.130	12–15 years
Missouri (rural co-ops)	Varies (often avoided cost)	None	No	$0.115–$0.130	14–20 years
Illinois	Retail rate	None (Shines REC instead)	Full exemption	$0.135–$0.155	8–12 years
Indiana	Avoided cost	None	No	$0.135–$0.155	13–16 years
Kansas	Retail rate (limited)	None	No	$0.115–$0.130	13–16 years
Iowa	Retail rate	None	Partial	$0.115–$0.130	12–15 years
Tennessee (TVA)	Buyback only	None	No	$0.105–$0.125	14–18 years

Missouri's position is roughly in line with Iowa and Kansas — retail net metering, no state credit, no sales tax exemption, and moderate electricity rates producing 12–15 year paybacks for IOU customers. The absence of Illinois-style REC income is a meaningful gap, but Missouri's better sun resource (4.7–5.1 vs. Illinois's 4.3–4.7 peak sun hours) partially offsets it.

Full Incentive Stack: Kansas City Best Case

For an Evergy customer in Kansas City with a 10 kW system qualifying for standard 30% ITC:

Incentive Layer	Amount
Gross installed cost	$28,500
Federal ITC (30%)	−$8,550
Property tax exemption (NPV, 1.05% rate, 20 years)	−$2,000
25-year utility savings	~$37,400
Less: sales tax on equipment (~8.6%)	+$1,290
25-year net profit	~$8,560

For a Missouri homeowner in an Energy Community county (40% ITC):

Incentive Layer	Amount
Gross installed cost	$28,500
Federal ITC (40%)	−$11,400
Property tax exemption (NPV)	−$2,000
25-year utility savings	~$37,400
Less: sales tax on equipment	+$1,290
25-year net profit	~$11,510

Getting Quotes in Missouri: Questions to Ask

Before signing any Missouri solar contract:

Which utility serves my address? (Ameren MO, Evergy, Empire/Liberty Utilities, or rural cooperative)
What is your assumed export credit rate? (Should be retail rate of ~$0.115–$0.130 for Ameren/Evergy; clarify co-op rate if applicable)
Does my location qualify for the Energy Community ITC bonus? (40% vs. 30%)
Is system sizing calibrated to my annual consumption, not over-sized? (Critical given annual avoided-cost true-up for Ameren/Evergy)
What is the per-watt installed cost, all-in, including permits and interconnection?
How do you handle the annual true-up — any system optimization recommendations to reduce year-end credit waste?
Will I own the system or lease it? (Lease forfeits the federal ITC)

Missouri Solar Checklist

Identify your utility — check your electric bill
Check Energy Community eligibility — use IRS/DOE mapping tool at energycommunities.gov
Get 3+ quotes from Missouri-licensed solar contractors (NABCEP-certified preferred)
Right-size for annual consumption — don't oversize for Ameren/Evergy annual true-up reasons
Confirm financing — cash or solar loan; leases forfeit ITC
File interconnection application — installer typically manages; expect 45–75 day approval
County building permit + electrical inspection — required in all major Missouri jurisdictions
Claim ITC on Form 5695 — for the tax year Permission to Operate (PTO) is received
Monitor production — track annual output vs. modeled estimate; flag underperformance early

Missouri Solar Summary

Missouri is a viable but workmanlike solar market. The federal ITC is the engine; everything else is incremental. Missouri's lack of a state income tax credit and sales tax exemption distinguishes it from the top incentive states, but SB 564's net metering protection, a competitive installer market in Kansas City and St. Louis, and genuinely good solar resource (particularly in southwest Missouri) produce paybacks of 12–15 years for Ameren and Evergy customers — viable return profiles for homeowners taking a long view on energy costs.

The most important variable for Missouri solar buyers is which utility serves their address. Ameren Missouri and Evergy customers get retail net metering under SB 564 protection, making solar straightforward to underwrite. Rural co-op customers need to confirm their co-op's specific export credit rate before assuming retail-rate economics.

For federal tax credit details, see our federal solar tax credit guide. For payback modeling, use our solar payback period calculator. For the full installed-cost picture that goes beyond equipment pricing, see our solar panel installation cost guide. To compare Missouri's position to neighboring state markets, see our Illinois solar incentives guide (stronger REC income, higher electricity rates) or our Indiana solar incentives guide (similar absent state credit, but weaker export compensation).

Missouri Solar Incentives 2026: Ameren, Evergy & Net Metering Guide