)
or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.
For the latest information about developments related to Form 720-X and its instructions, such as legislation enacted after they were published, go to IRS.gov/Form720X.
Sustainable Aviation Fuel (SAF) mixture credit.
The Sustainable Aviation Fuel (SAF) mixture credit under section 6426(k) has been terminated and will no longer apply to any sale or use for any period after September 30, 2025.
Excise tax on remittance transfers.
The One Big Beautiful Bill Act (OBBBA) created new section 4475, which imposes a 1% tax on certain remittance transfers that occur after December 31, 2025. Don’t use Form 720-X to claim amounts when a remittance transfer is cancelled or expired. Instead, the sender may file a claim for refund when a remittance transfer is cancelled or expired on Form 8849, Schedule 6. See instructions for Form 8849, Schedule 6 for more information. A Remittance Transfer Provider (RTP) may use Form 720-X to correct transcription or calculation errors made on a previously filed Form 720.
Direct deposit.
Direct deposit lines have been added to the Form 720-X, lines 5c through 5e, to allow taxpayers to securely and electronically receive overpayments of Form 720 quarterly excise taxes. Although the form has been updated the Direct Deposit functionality is not yet available. Please see IRS.gov/Form720X for further updates regarding Direct Deposit availability.
Expiration of sections 6426 and 6427 biodiesel and renewable diesel credits and payments.
The section 6426 and section 6427 credits and payments for mixtures of biodisel, renewable diesel, and agri-biodiesel expired for sales, uses, or removals after 2024.
Expiration of section 6426 alternative fuel credit and alternative fuel mixture credit, and section 6427 alternative fuel payment.
The section 6426 and section 6427 credits and payments for alternative fuels and alternative fuel mixtures expired for sales, uses, or removals after 2024.
Purpose of Form
Use Form 720-X to make adjustments to liability reported on Forms 720 you have filed for previous quarters. Don’t use Form 720-X to make changes to claims made on Form 720, Schedule C, except for the section 4051(d) tire credit and section 6426 credits. An RTP may use Form 720-X to correct transcription or calculation errors made on a previously filed Form 720. Don’t use Form 720-X to claim amounts when a remittance transfer is cancelled or expired.
Caution:
You must include in gross income (income tax return) any overpayment from line 4 of Form 720-X if you took a deduction on the income tax return that included the amount of the taxes and that deduction reduced the income tax liability. See Pub. 510, Excise Taxes, for more information.
When To File
Generally, adjustments that decrease your tax liability for a prior quarter must be made within 3 years from the time the return was filed or 2 years from the time the tax was paid, whichever is later.
Where to File
If you’re filing Form 720-X separately, send Form 720-X to:
Department of the TreasuryInternal Revenue Service
Cincinnati, OH 45999-0009Otherwise, attach Form 720-X to your next Form 720.
Private delivery services.
You can use certain private delivery services (PDS) designated by the IRS to meet the “timely mailing as timely filing” rule for tax returns. Go to IRS.gov/PrivateDeliveryServicesPDS for the current list of designated services. The PDS can tell you how to get written proof of the mailing date. For the IRS mailing address to use if you’re using PDS, go to IRS.gov/PDSStreetAddresses.
Caution:
Private delivery services can’t deliver items to P.O. boxes. You must use the U.S. Postal Service to mail any item to an IRS P.O. box address.
P.O. box.
If the post office doesn’t deliver mail to the street address and you have a P.O. box, show the box number instead of the street address.
Foreign address.
Don’t abbreviate the country name. Follow the country’s practice for entering the postal code and the name of the province, country, or state.
Line 1
Report each adjustment separately on line 1. You can use line 6 for your explanation or you can attach additional sheets with your name and Employer Identification Number (EIN) as needed.
Column (a).
Enter the quarter ending date of the Form 720 you’re amending. If you’re amending more than one quarter, make sure each quarter is clearly identified. Enter the date in the MMDDYYYY format. For example, if you’re adjusting the first quarter return for 2026, enter 03312026.
Column (d).
Enter the tax amount for the IRS No. entered in column (b) as originally reported on Form 720 or as later adjusted by you or the IRS.
Column (e).
Enter the adjusted tax liability that should have been reported for the IRS No. in column (b).
Column (f).
If column (e) is greater than column (d), subtract column (d) from column (e). This is an increase. If column (d) is greater than column (e), subtract column (e) from column (d). This is a decrease. Show the decrease in parentheses.
Section 4051(d) tire credit.
You must use line 2 to report any adjustment to the section 4051(d) tire credit for a prior quarter. For example, if you report an additional taxable vehicle on line 1 for IRS No. 33, the applicable tire credit is reported on line 2. Enter CRN 366 in column 2(b). See the Instructions for Form 720 for more information.
Section 6426 credits.
Section 6426 credits for biodiesel, renewable diesel, alternative fuel, and alternative fuel mixtures have expired for sale, uses, or removals after 2024. You can’t claim these credits for 2025 and later years. The section 6426 credit for SAF has expired for sales, uses, or removals after September 30, 2025.
Line 3a
Collectors using the alternative method for deposits must adjust their separate accounts for any credits or refunds made to customers of the collector. Form 720-X can’t be used for this purpose. For more information, see Alternative method in the Instructions for Form 720.
Line 3b
Select line 3b for all other tax decreases (except for the IRS Nos. listed or if the tax was based on the IRS Nos. listed on Form 720-X).
Line 5
If you want your overpayment refunded to you, check the box for line 5a.
If you want your overpayment applied to your next Form 720, check the box for line 5b and enter the quarter ending date of your next Form 720. You can file Form 720-X separately or you can attach it to your next Form 720.
Caution:
If you checked the box on line 5b, be sure to include the overpayment amount on lines 6 and 7 on your next Form 720. See Form 720 for details. If you owe other federal tax, interest, or penalty, the overpayment will first be applied to the unpaid amounts.
Line 6
You can use line 6 for your explanation or you can attach additional sheets with your name and EIN as needed.
Adjustments on line 1.
For each adjustment, you must include a detailed description of the adjustment and the computation of the amount.
Adjustments on line 2.
To make an adjustment, you must follow the instructions in the Instructions for Form 720 (Rev. May 2026). For each adjustment, you must attach a detailed explanation of the adjustment, including your registration number, and the computation of the amount. Your computation must include the number of gallons (or gasoline gallon equivalents) and credit rate (as shown above). You must include any information that is requested in the Instructions for Form 720 (Rev. May 2026), for Form 720.
Section 6426 credits for biodiesel, renewable diesel, alternative fuel, and alternative fuel mixtures have expired for sale, uses, or removals after 2024. You can't claim these credits for 2025 and later years. The section 6426 credit for SAF has expired for sales, uses, or removals after September 30, 2025. You can't claim this credit for any period after September 30, 2025.
Signature
Form 720-X must be signed by a person authorized by the entity to sign this return. You must sign Form 720-X even if it’s filed with Form 720 to apply an overpayment.
Paid Preparer Use Only
A paid preparer must sign Form 720-X and provide the information in the “Paid Preparer Use Only” section at the end of the form if the preparer was paid to prepare the form and isn’t an employee of the filing entity. Paid preparers must sign paper forms with a manual signature. The preparer must give you a copy of the form in addition to the copy to be filed with the IRS. If you’re a paid preparer, enter your preparer tax identification number (PTIN) in the space provided. Include your complete address. If you work for a firm, you also must enter the firm’s name and the EIN of the firm. However, you can’t use the PTIN of the tax preparation firm in place of your PTIN. You can apply for a PTIN online or by filing Form W-12, IRS Paid Preparer Tax Identification Number (PTIN) Application and Renewal. For more information about applying for a PTIN online, visit the IRS website at IRS.gov/PTIN.