A tax credit reduces the actual taxes you owe, dollar for dollar
A tax credit is a dollar amount you subtract directly from your tax bill. If you owe $3,000 in federal income tax and you have a $1,500 tax credit, you pay $1,500 instead. That is different from a tax deduction, which reduces the income that gets taxed in the first place. A $1,500 deduction might lower your tax bill by $300 or $450 depending on your tax bracket; a $1,500 credit always lowers it by $1,500.
As a homeowner, you may encounter tax credits for things like installing solar panels, making energy-efficient upgrades, or buying an electric vehicle. Some credits are refundable, meaning if the credit is larger than what you owe, the government sends you the difference. Others are non-refundable, meaning the credit can only reduce your bill to zero—any unused credit disappears.
Key Takeaways
- A tax credit subtracts directly from your tax bill, while a deduction reduces your taxable income, making credits far more valuable dollar-for-dollar.
- Refundable credits can result in a refund if they exceed your tax bill; non-refundable credits can only reduce what you owe to zero.
- Common homeowner credits include the Residential Energy Credit for solar and efficiency upgrades, and the Electric Vehicle Tax Credit for may have access to vehicles.
- You claim tax credits on your federal tax return using specific IRS forms, and may be able to access rules and credit amounts change year to year.
How tax credits differ from deductions
The confusion between credits and deductions costs homeowners real money. Suppose your taxable income is $60,000 and your tax bracket is 22 percent. A $1,000 deduction reduces your taxable income to $59,000, saving you $220 in taxes. A $1,000 credit reduces your tax bill by the full $1,000. Over time, if you are making home improvements, the difference adds up.
Deductions make sense when you have a lot of them—mortgage interest and property taxes used to be major deductions for homeowners, though the 2017 tax law changes limited how much you can deduct. Credits, by contrast, are usually tied to specific actions: you install solar, you buy an electric car, you weatherize your home. The IRS creates credits to encourage those behaviors, and they reward you directly.
Refundable versus non-refundable credits
A refundable credit works like this: you owe $800 in taxes, but you have a $1,200 refundable credit. You pay zero taxes, and the IRS sends you $400. The credit is "refundable" because you get back the amount that exceeds your bill. The Earned Income Tax Credit (EITC) is the most common refundable credit for lower-income households.
A non-refundable credit stops at zero. You owe $800, you have a $1,200 non-refundable credit, you pay zero taxes—but you do not get the extra $400. The unused $400 simply vanishes (though some non-refundable credits let you carry the unused amount forward to future years). Many homeowner credits, including parts of the Residential Energy Credit, are non-refundable.
Before you claim a credit, check whether it is refundable or non-refundable. If you have little or no tax bill, a non-refundable credit may not help you at all, while a refundable one still puts money in your pocket.
Common tax credits for homeowners
The Residential Energy Credit (also called the Energy Efficiency Tax Credit) covers solar panel installation, geothermal heat pumps, battery storage, and certain insulation and window upgrades. The credit amount and which improvements may have access to change year to year, so check the IRS website or a tax professional before you spend money. As of recent years, the credit has covered a percentage of your costs, up to certain limits.
The Electric Vehicle Tax Credit applies to the purchase of a new or used electric vehicle, though income limits and vehicle price caps apply. This credit is refundable up to a certain amount, making it more valuable than many homeowner credits. Rules around where the vehicle was assembled and where the battery was made have changed, so verify current rules before buying.
Some states and utilities also offer their own tax credits or rebates for energy upgrades, weatherization, or heat pump installation. These are separate from federal credits and stack on top of them. Your state's energy office or your utility company can tell you what is available where you live.
How to claim a tax credit on your return
You claim federal tax credits on your tax return using specific IRS forms. The Residential Energy Credit uses Form 5695. The Electric Vehicle Tax Credit uses Form 8936. If you use tax software, it will walk you through the questions and fill in the right forms automatically. If you work with a tax preparer, bring documentation of your purchase or installation—receipts, invoices, contractor statements—so they can verify you may have access to.
Keep records of what you bought, when you bought it, how much you paid, and who installed it (if applicable). The IRS may ask for proof years later. If you claim a credit you do not may have access to for, you may owe the credit back plus penalties and interest.
Some credits require you to get a certification or statement from the manufacturer or installer before you file. For example, solar panel installers often provide a form confirming the system qualifies for the credit. Ask before the work is done, not after.
Income limits and phase-outs
Many tax credits have income limits or phase out as your income rises. The Electric Vehicle Tax Credit, for instance, has modified adjusted gross income (MAGI) limits that vary by filing status. Once your income exceeds the limit, the credit shrinks or disappears entirely. These limits change year to year and sometimes mid-year, so verify your may be able to access the year you plan to claim the credit.
If your income is close to the limit, timing matters. If you can shift income to a different year or file jointly versus separately (if married), you might stay under the cap. A tax professional can model this for you if the credit is large enough to justify the cost.
What changes year to year
Congress regularly modifies tax credits—the amount, which improvements or purchases may have access to, income limits, and whether they are refundable. The Residential Energy Credit has expanded and contracted multiple times. The Electric Vehicle Tax Credit has had major changes to income limits, vehicle price caps, and domestic content rules in recent years.
Before you make a large purchase or home improvement to capture a credit, research the current rules for the year you will file. The IRS website, your state's tax authority, and a tax professional are your best sources. Do not rely on what a salesperson told you last year or what you read on a blog—the rules may have changed.
Frequently Asked Questions
Can I use a tax credit if I do not owe any taxes?
It depends on whether the credit is refundable. A refundable credit can result in a refund even if you owe zero taxes. A non-refundable credit can only reduce your bill to zero; any unused amount is lost (though some non-refundable credits carry forward to future years). Check the specific credit's rules.
What is the difference between a tax credit and a rebate?
A rebate is money a manufacturer or utility gives you back after you buy something or make an upgrade. A tax credit is a reduction on your federal tax bill that you claim when you file your return. You can often get both—a rebate from the utility and a federal tax credit—on the same project.
Do state tax credits work the same way as federal credits?
Most states follow the federal model, but rules vary. Some states offer their own energy or vehicle credits that stack on top of federal ones. Check your state's tax authority website or a local tax preparer to learn what credits your state offers and how to claim them.
What happens if I claim a credit I do not may have access to for?
The IRS may disallow the credit, require you to repay it, and charge penalties and interest. Keep all receipts, invoices, and certifications for at least three years. If you are unsure whether you may have access to, ask a tax professional or contact the IRS before you file.
Can I carry forward an unused non-refundable credit to next year?
Some non-refundable credits allow carryforward, but not all. The Residential Energy Credit, for example, can be carried forward indefinitely in some cases. Check the specific credit's rules or ask a tax professional whether your unused credit can be used in a future year.