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IRSCredits & Incentives (8800/8900 Series)

Official form guide

Form 8849S6: 8849 (Schedule 6)

Form 8849 Schedule 6 is an attachment to Form 8849 that reports the credit for federal excise tax paid on aviation fuel used in aircraft. File it when you claim that specific fuel tax credit for a tax year.

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Form Overview

IRS Form 8849S6 - 8849 (Schedule 6)

Form 8849 Schedule 6 is an attachment to Form 8849 that reports the credit for federal excise tax paid on aviation fuel used in aircraft. File it when you claim that specific fuel tax credit for a tax year.

It captures total gallons of fuel purchased, the type of fuel, the amount of tax paid, and the period of use.

Risk Radar

Scan points
  • 1A missing or mis‑calculated Schedule 6 will void the entire fuel‑tax credit.
  • 2Mis‑matching fuel type to credit category
  • 3Incorrect total gallons or tax amount
  • 4Omitting the schedule when filing Form 8849
  • 5Using the wrong IRS mailing address

Plain English

If you bought jet fuel or other aviation fuel and paid the federal excise tax, you can ask the IRS to give you that money back. Schedule 6 is the part of the credit form that details the fuel purchases and the tax you paid. You only need it if you’re eligible for the fuel‑tax credit.

Submission Date

  • Filing date: 2025-12-04 14:35:46
  • Preparation window: collect IDs, supporting records, and signatures in advance.
  • Final review: verify names, dates, and required fields before submission.

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Glossary Terms

excise taxfederalperiodmoney

Hover a term to preview the meaning.

What this form is for

  • Use this form when you paid federal excise tax on aviation fuel and want the credit.
  • Do not use it for non‑aviation fuel or for the alternative fuel credit.
  • If you only have a small amount of fuel tax, check Form 4136 instead.

Form selector

Use this form or another form?

Fuel used for non‑aviation purposes

Covers general fuel tax credits

✓ Verify fuel purpose first

Form 4136

International flight fuel tax credit

Reports excise taxes on foreign‑origin fuel

✓ Confirm foreign‑origin status

Form 720

Corporate fleet fuel credit

Corporate income‑tax return credit line

✓ Ensure corporate filing

Form 1120 Schedule J

Deadline or filing window

The credit must be claimed by the due date of the income‑tax return for the year the fuel was used, including extensions. If you file an extension for your return, the credit deadline moves with it. Late filing may forfeit the credit.

  • —Total gallons purchased | Sum of receipt gallons | Total gallons | Verify no duplicate entries

Checklist

What you need before filling it out

1

Fuel type

Invoice or receipt showing fuel grade · Supplier invoice

⚠ Mistaking avgas for jet fuel✕ High
2

Gallons purchased

Receipt line item · Purchase log

⚠ Rounding errors✕ Medium
3

Tax paid

Tax amount on receipt · IRS tax rate schedule

⚠ Using wrong rate✕ High
4

Period of use

Date range on log · Flight records

⚠ Over‑lapping periods✕ Medium

Before you submit

  1. 1All fuel receipts for the tax year are gathered
  2. 2Totals for gallons and tax are double‑checked
  3. 3Schedule 6 is attached to a completed Form 8849
  4. 4Form 8849 is signed and dated
  5. 5Mailing address matches the current instructions
  6. 6If e‑filing, schedule is uploaded correctly
  7. 7Copy of the entire packet retained for records

How to file this form

  1. 1Collect all aviation fuel purchase documents
  2. 2Calculate total gallons and tax paid per fuel type
  3. 3Enter the numbers on Schedule 6 line items
  4. 4Attach Schedule 6 to the completed Form 8849
  5. 5Sign the Form 8849 (Schedule 6 has no signature line)
  6. 6Mail to the IRS address or submit via approved e‑file software
  7. 7Keep a copy of the filed packet and proof of mailing

Known limitations

  1. 1Form does not validate totals against IRS published rates
  2. 2No automated error checking for duplicate receipts
  3. 3E‑file support depends on third‑party software
  4. 4Instructions may change yearly; always use the edition matching the tax year

Field map

Compact field-by-field guide

6 fields

Entity Info

1 items

Taxpayer Name and TIN

Name and taxpayer ID of the entity claiming the credit.

Requiredtext

Credit Info

1 items

Credit Type

Type of credit or incentive being claimed.

Requiredselect

Calculation

2 items

Qualifying Amount

The base amount used to calculate the credit.

Requiredamount
Credit Amount

Calculated credit amount after applying formulas and limitations.

Requiredamount

Certification

1 items

Supporting Information

Detailed breakdown supporting the credit calculation.

text

Signatures

1 items

Signature

Sign and date the form.

Requiredsignature
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Current form status
IRS

Form 8849 Schedule 6 is currently in the 2024 edition. Verify the edition date before using it for a prior tax year.

What changed or needs a fresh check

  • Edition date – confirm 2024 edition for the tax year you’re filing
  • Fee – no separate filing fee for Schedule 6
  • Mailing address – use the address in the 2024 Form 8849 instructions
  • E‑file compatibility – check if your software supports Schedule 6 attachment
  • Signature line – required on the main Form 8849, not on Schedule 6

Form Preview

Form 8849S6 page 1

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Form 8849S6 page 2

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Quick Facts

Tax‑paying individuals, corporations, partnerships, or estates that used taxable aviation fuel and want the credit.
It captures total gallons of fuel purchased, the type of fuel, the amount of tax paid, and the period of use.
File with your annual Form 8849 by the regular income‑tax return deadline (typically April 15) for the year the fuel was used.
Mail the completed Schedule 6 together with Form 8849 to the address listed in the Form 8849 instructions, or e‑file if your tax software supports it.
Errors can reduce or eliminate the credit, trigger a notice, or cause a penalty for underpayment of tax.
Gather fuel receipts and purchase logs, total the gallons and tax paid, fill the schedule line‑by‑line, attach it to Form 8849, sign, and send it to the correct IRS address or upload via e‑file. Double‑check that the fuel type matches the credit category.

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After you file

  1. 1Store all original receipts for at least three years
  2. 2Mark the filing date on your calendar for future reference
  3. 3Monitor IRS correspondence for acknowledgment or requests for clarification
  4. 4If a notice arrives, compare the IRS‑calculated credit to your Schedule 6 totals
  5. 5Update your fuel‑purchase log with the credit received

Sources

  • SRCForm 8849 instructionsschedule description
  • SRCIRS Publication 510fuel tax rates
  • SRCIRS websitefiling address for Form 8849
  • SRCIRS e‑file participation listschedule attachment support
  • SRCNot found in provided sourceexact deadline for Schedule 6 separate from Form 8849

Common confusion points

Fuel type vs. credit category

Different rates apply to avgas, jet fuel, etc.

→ Verify fuel grade on each receipt

Schedule 6 vs. Form 4136

Both claim fuel tax credits but for different uses

→ Use Schedule 6 only for aviation fuel used in aircraft

Mailing address changes

IRS updates address annually

→ Check the latest Form 8849 instructions

E‑file attachment method

Some software omits Schedule 6

→ Confirm the schedule appears in the PDF preview

Extension impact

Credit deadline follows return extension

→ File Schedule 6 with the extended return

Workflow map

Related forms and next steps

6 signals

Before

Gather fuel purchase receiptsVerify correct tax year for fuel use

Current

8849S6

After

Attach to Form 1040, 1120, 1065, etc., as appropriate

Often used with

Form 8849 (main credit form)IRS Publication 510 (Excise Tax Guide) for rate reference

⚠ If something goes wrong

  • Respond to IRS notice within 30 days

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Source transparency

Copyright & Licensing - US Government Forms

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Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
Public DomainCreated by the U.S. federal government. Not subject to copyright (17 USC § 105). Freely copyable without restriction.
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