What Mississippi still offers after the federal credit ended
Every incentive on this page is verified against Mississippi government sources - and the expired ones salespeople still quote are called out.
The 30% federal solar tax credit ended for installations finished after December 31, 2025 - Duncan systems completed in 2026 get $0 from it.
Under Mississippi's export rules, compensation for surplus power decides the payback - which typically runs 10-14 years on unsubsidized 2026 math.
Installed home solar for Duncan homeowners averages about $2.58 a watt across the U.S. marketplace - roughly $30,960 for a 12 kW system before incentives.
Leased and PPA systems deserve extra scrutiny in 2026: the sales pitch often bundles 'tax savings' that now accrue to the leasing company under separate commercial rules - not to you. Get every claimed saving in writing, attributed to a specific law, before signing a 20-25 year contract.
The federal Residential Clean Energy Credit - the 30% one every solar ad still quotes - was repealed by the One Big Beautiful Bill Act signed July 4, 2025. Per the IRS, it is not available for any system placed in service after December 31, 2025, and 'placed in service' means the installation completion date, not the contract date.
The 2026 numbers
| System size | Installed price (marketplace avg) | Notes |
|---|---|---|
| 6 kW | $15,480 | Small roof / low usage |
| 8 kW | $20,640 | Typical starter system |
| 10 kW | $25,800 | Family home with AC |
| 12 kW | $30,960 | Large home / EV charging |
| Home battery (optional) | $12,000-$16,000 | Backup power + self-consumption |
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Mississippi rules that decide your payback
| Rule | Mississippi status |
|---|---|
| Export compensation (net metering) | Mississippi does not credit exports at retail: under the PSC's Renewable Energy Net Metering Rule, on-site self-consumption offsets usage, but excess energy exported to the utility is credited at the 'Total Benefits of Distributed Generation,' defined as the utility's Avoided Cost of Wholesale Power plus an adder (set at 2.5 cents/kWh as 'Non-Quantifiable Expected Benefits'), with an extra 2 cents/kWh Low-Income Benefits Adder for qualifying low-income customers. |
| State incentive | No state-level incentive; utility rebates may apply |
| Sales tax on the system | Not exempt - taxed like any purchase |
| Property tax on added home value | No exclusion on record |
The Low-Income Benefits Adder (2 cents/kWh) is limited to the first 1,000 qualifying customers per the rule and is locked in for 15 years from the date the customer starts net metering service - so it is a first-come, first-served benefit. Separately, each utility must offer net metering first-come, first-served only until enrollment hits a cap of 3% of that utility's total system peak demand from the prior calendar year.
This guide is research, not advice: an independent summary of published prices and state rules. It is not an installer, lender or tax advisor - verify incentive eligibility with a licensed tax professional before relying on it.
What this means for Duncan roofs
Whether solar still pays in Mississippi after the federal credit's end comes down to arithmetic, not ideology: installed cost (about $2.58 a watt at the marketplace average), what your utility pays for exports, and how much of your generation you use yourself. High self-consumption - daytime usage, EV charging, batteries - is now the biggest lever.
This guide is research, not advice: an independent summary of published prices and state rules. It is not an installer, lender or tax advisor - verify incentive eligibility with a licensed tax professional before relying on it.
Getting Duncan quotes
Same-day contracts are a red flag in this industry. Legitimate MS installers expect you to compare bids, check licenses, and read the interconnection terms. Anyone pressuring you to sign at the kitchen table is pricing in your haste.
This guide is research, not advice: an independent summary of published prices and state rules. It is not an installer, lender or tax advisor - verify incentive eligibility with a licensed tax professional before relying on it.
Common questions
Is there still a federal solar tax credit in 2026?
No. The 30% Residential Clean Energy Credit was repealed effective for systems placed in service after December 31, 2025, per the IRS. Only systems finished by the end of 2025 qualified. State-level incentives are separate and some survive - check the state page in this guide.
How much does home solar cost in 2026?
The U.S. marketplace average is about $2.58 per watt installed - roughly $15,500 for a 6 kW system and $31,000 for 12 kW, before any state incentives. Quotes meaningfully above that level deserve a written explanation of what justifies the premium.
Do I need a battery with my solar?
Not necessarily. Under full retail net metering, the grid effectively stores your surplus for free. Batteries earn their $12,000-16,000 price where export rates are low, outages are common, or time-of-use rates make evening self-consumption valuable.
Does solar raise my property taxes?
It depends on the state - many exempt solar's added home value from property tax, others do not, and some exemptions have expiration dates. This guide's state page lists the verified rule and source for your state.
How do I check if a solar quote is fair?
Divide the total price by the system's wattage. The U.S. marketplace average is about $2.58 per watt installed; $2.30-3.00 covers most fair quotes depending on roof complexity. Above that, ask exactly what you are paying extra for - in writing.
Get solar quotes for Duncan
These platforms collect bids from licensed installers so you can compare against the same spec. Prices come from installers, not from this site.
Disclosure: this is an independent guide. If you request quotes through a link here, the platform may pay this site a referral fee. That fee never changes your quotes.
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