A new roof qualifies for the federal energy tax credit only if it meets specific material and performance standards

Not every new roof qualifies. The IRS allows the credit only for roofing materials that reflect solar energy rather than absorb it. This means your roof must have a solar reflectance of at least 0.65 and a thermal emittance of at least 0.75 — measurements that tell the IRS how much heat the material bounces back instead of trapping. A standard asphalt shingle roof, even a brand-new one, does not meet these numbers. Metal roofs, clay tiles, and certain composite materials do, but only if the manufacturer certifies them and you keep that documentation.

The credit covers 30 percent of what you paid for the may have access to materials and installation, with no dollar cap. You claim it on Form 3468 (Investment Credit) when you file your tax return for the year the roof was installed. The roof must be on your primary residence — not a rental property, vacation home, or investment building.

Key Takeaways

  • Your roof qualifies only if the materials have a solar reflectance of at least 0.65 and thermal emittance of at least 0.75, which the manufacturer must certify in writing.
  • Standard asphalt shingles do not may have access to, but metal roofs, clay tiles, and some composite materials do if they meet the reflectance standard.
  • You claim the credit on Form 3468 in the tax year the roof was installed, and the credit covers 30 percent of materials and labor costs with no upper limit.
  • The roof must be installed on your primary residence; rental properties and second homes do not may have access to.
  • You must keep the manufacturer's certification paperwork and your contractor's invoice showing the cost of materials and installation separately.

How to verify your roof meets the reflectance standard

Before you buy, ask the roofing contractor or manufacturer for written certification that the material meets the IRS reflectance and emittance requirements. The manufacturer's technical data sheet should list these numbers. If it does not, the material does not may have access to, and no amount of paperwork will change that later.

Some manufacturers label may have access to products as "cool roofs" or "energy-efficient roofs," but the label alone is not proof. You need the actual measurements. The Cool Roof Rating Council maintains a directory of tested products, which you can search by material type and manufacturer — this is a free resource that shows which specific products have been independently tested and certified.

If you already had a roof installed and did not get this certification at the time, contact the manufacturer directly with the product name and model number from your invoice. They can usually provide a retroactive certification letter if the product qualifies. Without it, you cannot claim the credit.

What costs you can include in the credit calculation

The credit applies to the cost of the may have access to materials themselves plus the labor to install them. Your contractor's invoice should break these out separately. If the invoice lumps everything together as "roof replacement: $15,000," you will need to ask the contractor to provide a detailed breakdown showing material cost and labor cost before you can calculate the credit accurately.

Do not include the cost of removing the old roof, repairing the underlying structure, or replacing gutters and flashing — these are separate work and do not may have access to. If your invoice combines these costs, ask the contractor for an amended invoice that isolates the may have access to roof work. The IRS does not require you to submit invoices with your return, but you must keep them for your records in case of an audit.

Claiming the credit on your tax return

You report the energy tax credit on Form 3468, which is the Investment Credit form. Line 1a of that form is where you enter the cost of energy-efficient property, including may have access to roofs. The form then calculates 30 percent of that amount as your credit.

Form 3468 attaches to your Form 1040. If you are filing electronically, your tax software will usually walk you through the questions and fill in the form automatically once you enter the roof cost. If you are filing by hand or working with a tax preparer, make sure they know the roof is the only energy improvement you made that year — some preparers miss this credit because they do not ask about home improvements.

You claim the credit in the tax year the roof was installed and paid for, not the year you filed the return. If the roof was installed in December 2023 but you did not pay the final invoice until January 2024, you claim the credit on your 2024 return.

What happens if your roof does not may have access to

If your roof does not meet the reflectance standard, you cannot claim the energy tax credit, but you may be able to claim a different credit if you made other energy improvements in the same year. The federal government also offers credits for heat pumps, electric water heaters, insulation, and windows. Check whether you installed any of those at the same time.

Some states offer their own tax credits or rebates for cool roofs regardless of whether they meet the federal standard. Contact your state's energy office or check your state tax agency's website to see whether a state-level credit is available. A roof that does not may have access to federally might still reduce your state taxes.

Common mistakes that cost you the credit

The most common mistake is not getting written certification from the manufacturer before installation. Once the roof is on, it is much harder to prove it qualifies, and some manufacturers will not backdate certifications. Always ask for the certification in writing before you sign the contract.

The second mistake is claiming the credit on a rental property or second home. The IRS is strict about this — the roof must be on your primary residence, the one you live in most of the year. If you own a vacation home or investment property, that roof does not may have access to even if the materials do.

The third mistake is including costs that do not may have access to, like removing the old roof or repairing rot underneath. These are legitimate expenses, but they are not part of the energy credit. Inflating the credit by including ineligible costs invites an audit.

Frequently Asked Questions

Can I claim the credit if I had the roof installed last year but did not know about it?

Yes, you can amend your prior-year return using Form 1040-X if you are still within the time limit (usually three years from when you filed). You will need the manufacturer's certification and your contractor's invoice. File the amended return with Form 3468 attached to claim the credit you missed.

What if my contractor cannot provide a breakdown of material versus labor costs?

Ask the contractor for an amended invoice that separates the two. If they refuse or cannot, you can estimate based on typical industry ratios — usually materials are 40 to 50 percent of the total cost — but the IRS may question this if you are audited. It is better to get the actual breakdown from the contractor.

Does a metal roof always may have access to?

Not automatically. A metal roof qualifies only if the manufacturer certifies that it meets the reflectance and emittance standards. Some metal roofs do; others do not. Always check the certification before you buy, because the material type alone does not determine whether the credit applies.

Can I claim the credit if I am not the one who paid for the roof?

No. You must have paid for the roof yourself to claim the credit. If someone else paid for it as a gift or if it was installed by a previous owner, you cannot claim it. The credit follows the person who paid the bill, not the person who owns the house.

What if I installed the roof in 2022 — can I still claim the credit?

Yes, if you did not already claim it. You can file an amended return for 2022 using Form 1040-X within three years of when you originally filed. After three years, the IRS generally will not allow you to claim a credit you missed, so act sooner rather than later if you remember an old roof that may have access to.