The 30% Federal Solar Tax Credit Is Gone for 2026. Here's What That Means for Your Solar Math

If you've been researching solar panels this year, you've probably seen the number 30% everywhere. "Get 30% back on your solar installation." "The federal tax credit covers a third of the cost." It's been the headline incentive for solar for over a decade, and it's still all over the internet.

Here's the thing that most of those pages are out of date on: that credit is over for 2026.

The 30% federal Residential Clean Energy Credit, officially Section 25D of the tax code, applied to systems installed through December 31, 2025. The One Big Beautiful Bill Act, signed in July 2025, ended the residential credit for any system placed in service after that date. There is no phase-down. No 26%. No 22%. For a system you install this year, the federal homeowner credit is 0%.

This is a big enough change that it's worth slowing down and understanding what it actually does to your decision. Because solar can still be worth it, but the numbers that made it look so good last year are not the numbers that apply now.

What the 30% credit used to do

The credit let you deduct 30% of your total installed cost directly from your federal income tax, dollar for dollar. On an average system costing about $25,000, that was a check for roughly $7,500. It was nonrefundable (it could reduce your tax to zero but not below), and any unused portion carried forward to the next year.

Because it cut the effective price by about a third, it did two things: it made solar a fast payback, and it made the "solar is a great deal" math feel almost too good to be true. On a $25,000 system, you were effectively paying around $17,000, which is why the national average payback was often quoted in the high single digits.

What losing the credit actually changes

This is the part that surprises people. When you remove a 30% credit, the price doesn't go up by 30%. It goes up by about 43%.

Here's why. With the credit, you were paying 70 cents of every dollar. Without it, you pay the full dollar. So the gap between "70 cents" and "1 full dollar" is not a 30-cent gap in what you pay, it's the difference between paying 0.70x and 1.00x, which is a 43% increase in your real out-of-pocket cost.

That 43% stretches your payback by the same proportion in every state. Where the credit got your payback to, say, 8.7 years, the same system now takes about 12.4 years. The percentage impact is identical everywhere. What changes by state is how many years that adds, and that comes down to your electricity rate.

Your electricity rate is now the whole game

With the federal credit out of the picture, the single biggest driver of whether solar pays for you is how much your utility charges per kilowatt-hour. Every kilowatt-hour your panels produce is one you don't have to buy. So the value of your system is directly tied to your local rate.

Residential rates vary enormously across the country. According to the Energy Information Administration's June 2026 data, they run from about 13.1 cents per kWh in Nevada up to about 52.7 cents per kWh in Hawaii. That's roughly a four-fold spread.

That spread matters more than sunshine. A lot of people assume sunny states are where solar wins, but what actually decides your payback is the price you'd otherwise pay for that power.

| State | Rate (cents/kWh) | Payback with 30% credit | Payback without it | Years added | |---|---|---|---|---| | Hawaii | 52.72 | ~3.0 yrs | ~4.3 yrs | +1.3 | | United States (avg) | 18.34 | ~8.7 yrs | ~12.4 yrs | +3.7 | | Nevada | 13.11 | ~12.1 yrs | ~17.3 yrs | +5.2 |

These are illustrative numbers based on a $25,000 system producing 11,000 kWh a year. Your roof, your system size, and your production will be different, which is exactly the point of getting an estimate for your own home. But the pattern is real: high-rate states see a much smaller penalty from losing the credit, and low-rate states see a much bigger one.

In Hawaii, losing the credit added about a year to an already fast payback. In Nevada, it added over five years to a payback that was already long. The credit made solar viable in a lot of moderate-rate and low-rate places. Without it, the math is tighter there.

What still helps you save in 2026

The federal credit is gone, but solar is not the same deal it used to be by a single number. A few things still work in your favor, and in some states they matter a lot.

State and utility incentives. These were never touched by the federal change, and they can be worth more than the old federal credit in some places. There are state income tax credits, cash rebates, sales tax exemptions, property tax exemptions, and SREC programs that pay you for the power you produce. The DSIRE database, maintained at North Carolina State University, tracks all of them state by state and is the best place to look.

Net metering and net billing. This one can swing your savings more than you'd expect. Under full retail net metering, a kilowatt-hour you export is worth the same as one you use. Under net billing, which California and a growing number of states have moved to, exported power is credited well below the retail rate. If your state or utility uses net billing, the value of your system depends heavily on how much power you actually use on your own roof while the sun is up, which is a big factor for sizing the system right.

The fact that solar still produces real savings, no credit required. Even with no incentives, a solar system lowers your electric bill every single month. It also protects you from rate increases over the 25 to 30 years the panels last. In high-rate states, that protection is worth a lot.

What to do before you sign anything

If you're going to get quotes, keep three things in mind.

First, if an installer is still advertising "30% back" on a system you install in 2026, that's a red flag. That claim is simply wrong for a homeowner-owned system, and it's worth asking them exactly what incentive they're referring to.

Second, make sure you understand whether you're buying or leasing. The federal residential credit only applied to systems you owned. Leased or PPA systems were never eligible, and a third-party lease claims a separate commercial credit that you don't get to claim yourself. The numbers look very different, so make sure you know which structure you're in.

Third, the one number that decides your payback is your own production estimate combined with your own local rate. No two roofs produce the same, and no two homeowners pay the same rate. The generic payback numbers above are a starting point, not your answer.

See your home's actual numbers

The honest truth is that solar in 2026 still makes sense for a lot of people, especially if you pay a high rate or live in a state with real incentives. But "a lot of people" is not "everyone," and the difference between a good deal and a slow payback is almost always your specific roof, your specific system size, and your specific utility rate.

The fastest way to stop guessing is to see your own home's numbers. SolrScan scans your roof using satellite imagery and generates a report with your home's annual sunshine hours, a recommended panel count and wattage, an estimated system size and cost, and projected energy savings, all for your exact address.

That report costs $19, and it turns the abstract "is solar worth it" question into a concrete, house-by-house answer. You can scan your home and see your potential at https://solrscan.com.