Key takeaways
- Solar tends to pay off best where electricity is expensive, sun is strong and the utility credits exported power fairly.
- The 30% federal residential solar credit ended for systems installed after December 31, 2025, which lengthens payback for many buyers.
- Estimate payback by dividing net system cost by expected annual bill savings, then compare that to how long you will stay.
- A roof near the end of its life, heavy shade or a planned move can turn a good deal into a poor one.
In this guide
Solar is worth it for many homeowners who pay high electricity rates, get strong sun, have a sound roof with good exposure and plan to stay for years. It is weaker where power is cheap or exports earn low credits. With the 30% federal credit gone for 2026 installs, payback math matters more than ever.
Rooftop solar is a long-term investment. You pay a large amount up front, or take on a loan or lease, in exchange for lower electric bills over 20 to 30 years. Whether that trade works depends far more on your specific home and utility than on national averages. This guide shows you how to estimate the numbers yourself and which factors can make or break the decision.
What changed for solar in 2026
For several years, the federal Residential Clean Energy Credit let homeowners who bought a system take 30% of its cost off their federal income taxes. The July 2025 federal budget law ended that credit for expenditures made after December 31, 2025. Under IRS guidance, an expenditure counts as made when installation is completed, so paying a deposit in 2025 does not help if the system was finished in 2026.
That means a homeowner buying panels outright or with a loan in 2026 generally cannot claim the 30% federal credit. The net cost of a system that once would have been reduced by nearly a third is now the full price, minus any state, local or utility incentives that still apply.
State tax credits, utility rebates, performance payments and property tax exemptions for solar still exist in some places. They vary widely and change often, so check your state energy office and your utility for current programs.
How to estimate whether solar pays off
The core calculation is simple payback: how many years of savings it takes to cover what you spent.
- Find your net system cost: the installed price minus any rebates or incentives you can actually claim.
- Estimate annual bill savings: how much electricity the system will produce each year, multiplied by what that electricity is worth to you, whether used at home or credited when exported.
- Divide net cost by annual savings to get payback in years.
- Compare payback to how long you expect to stay in the home and to the system's warranty period.
This is a rough estimate. Electricity prices tend to rise over time, which can shorten payback, while panels slowly lose output, which lengthens it. Financing costs also matter: if you borrow, the interest and any fees add to what you actually pay. Our guide to solar panel cost breaks down what goes into the installed price.
Factors that decide whether solar is worth it
| Factor | Helps the case for solar | Hurts the case for solar |
|---|---|---|
| Electricity rates | High and rising rates | Low rates |
| Sunshine and orientation | Unshaded, south- or west-facing roof | Heavy shade, poor orientation |
| Export credits | Full or near-retail net metering | Low credits for exported power |
| Roof condition | Newer roof with decades of life left | Roof due for replacement soon |
| Time in home | Staying well past payback | Moving within a few years |
| Incentives | State or utility rebates available | No local incentives |
| Payment method | Cash or low-cost financing | High-fee loan or escalating lease |
Your utility's export rules
How your utility treats the electricity you send back to the grid can matter as much as the panels themselves. Under classic net metering, exported power earns a credit close to the retail rate. Several states and utilities have moved to net billing or similar structures that pay less for exports. Under those rules, solar is worth more when you use the power yourself, which is one reason some homeowners pair panels with a home battery.
Your roof
Panels are typically installed for 25 years or more. If your roof has only a few years left, you may need to pay to remove and reinstall the panels when it is replaced. Many installers recommend replacing an older roof first. Our guide to roof replacement cost can help you budget for both projects together.
When solar may not be worth it
Solar is often a poor fit if:
- Your electric bills are already low, so there is little to save.
- Trees, neighboring buildings or roof shape block much of the sun.
- Your utility pays very little for exported power and you are away during the day.
- You plan to sell soon and the system would be financed or leased.
- Your roof needs replacement and you cannot afford both projects.
Community solar programs, where available, let renters and homeowners with unsuitable roofs subscribe to a share of a local solar project and receive bill credits, often without upfront cost.
How you pay changes the answer
Paying cash generally gives the best lifetime return because there is no interest or financing fee. Loans let you own the system without the upfront cash, but interest and dealer fees can erase much of the savings. Leases and power purchase agreements cost little up front, but the leasing company keeps most of the financial benefit. We compare these in detail in solar lease vs. loan vs. cash.
If you plan to tap home equity to pay for solar, compare the costs and risks of a cash-out refinance vs. a HELOC against a dedicated solar loan, remembering that both put your home up as collateral.
Questions to ask before you sign
- What is the total price, and what is the price per watt?
- What annual production is the estimate based on, and does it account for shade?
- What are the panel, inverter and workmanship warranties, and who honors them if the installer goes out of business?
- Does the savings estimate assume any tax credit or incentive? Which ones, exactly?
- How does my utility credit exported power, and what does the estimate assume?
- Will the installer handle permits, utility interconnection and roof penetrations, and who is responsible for leaks?
The bottom line
Solar can still pay off in 2026, but the end of the 30% federal credit means you should run the numbers carefully rather than rely on a sales pitch. Focus on your electric rates, your utility's export rules, your roof's condition and how long you will stay. If payback lands comfortably inside the system's warranty period and you can pay without costly financing, solar is likely worth a closer look.
Frequently asked questions
Is solar still worth it without the federal tax credit?
It can be, but the math is tighter. Without the 30% federal credit, which ended for installations completed after 2025, payback periods get longer. Homes with high electric rates, strong sun, good export credits and possible state or utility incentives may still come out ahead over the life of the system. Homes with cheap power or weak export credits may not.
How long does it take for solar panels to pay for themselves?
Payback commonly ranges from well under ten years in high-rate, sunny markets to fifteen years or more where electricity is cheap. Divide your net cost after any incentives by your expected yearly bill savings. Because panels often carry 25-year warranties, a payback well inside that window is usually a sign the project makes financial sense.
Does solar increase home value?
Owned solar systems can make a home more attractive to buyers because they lower future electric bills, and some studies have found a price premium. The effect varies by market and is weaker if the system is old. Leased systems or those with an outstanding loan can complicate a sale, because the buyer must take over the agreement or the balance must be paid off.
What are the downsides of solar panels?
The main downsides are high upfront cost, long payback in low-rate areas, and the risk of paying for roof work twice if you install on an aging roof. Leases and loans can carry fees and terms that eat into savings, and utilities can change how they credit exported power. Panels also produce little during outages unless you add a battery.
Should I get solar if I plan to move in a few years?
Usually only if the payback is short or you expect the system to add resale value. If you move before payback, you rely on the next buyer to value the system. Leases can be harder to transfer. If you might sell within five years, compare the likely return carefully and consider waiting until your plans are clearer.
Official Resources & Further Reading
Use these resources to check current guidance. Requirements and availability may vary by state and provider.
This guide is for general educational purposes and is not individualized financial, legal, tax or insurance advice. Product terms, rates and availability vary by provider and location. How we make money.
