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IRSCredits & Incentives (8800/8900 Series)

Official form guide

Form 8900: Qualified Railroad Track Maintenance Credit

IRS Form 8900 is the Qualified Railroad Track Maintenance Credit used to claim a 40% credit on qualified railroad track maintenance expenditures. Eligible taxpayers such as Class II or Class III railroads, transporters, service providers, partnerships and S corporations must file.

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Form Overview

IRS Form 8900 - Qualified Railroad Track Maintenance Credit

IRS Form 8900 is the Qualified Railroad Track Maintenance Credit used to claim a 40% credit on qualified railroad track maintenance expenditures. Eligible taxpayers such as Class II or Class III railroads, transporters, service providers, partnerships and S corporations must file.

The form collects the number of eligible railroad track miles owned or leased (line 3a), the miles assigned to another taxpayer (line 3b), the total miles assigned (line 3c), and the credit calculation (lines 3d‑5). It also requires a statement with assignor information and the credit amount from partnerships and S corporations (line 6).

Risk Radar

Scan points
  • 1Failing to attach the required assignment statement can invalidate the credit.
  • 2Using an older revision of Form 8900 instead of the December 2023 revision.
  • 3Omitting the required assignment statement attached to the return.
  • 4Not reducing the miles on line 3b for track assigned to another taxpayer.
  • 5Incorrectly calculating the credit by not multiplying line 3d by $3,500.

Plain English

Form 8900 lets railroads and related businesses claim a credit for money spent keeping tracks, bridges, tunnels, and other structures in good shape. You report the miles of track you own, assign, and the credit amount, then attach any required statements. The credit reduces your tax liability.

Submission Date

  • Filing date: 2023-12-12 22:11:51
  • 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

Hover a term to preview the meaning.

What this form is for

  • Use this form when you are an eligible taxpayer claiming the qualified railroad track maintenance credit for qualified expenditures.
  • Do not use it when you are not an eligible taxpayer or when claiming a different credit.
  • Check Form 3800 instead when you report the credit directly without using earlier lines.

Form selector

Use this form or another form?

Partnerships or S corporations reporting RTMC on Schedule K-1

Partner's share of credit must flow to Form 8900 line 6

Verify Schedule K-1 box 15 code AJ is included

Form 1065

S corporations reporting RTMC on Schedule K-1

Shareholder's share of credit must flow to Form 8900 line 6

Verify Schedule K-1 box 13 code AJ is included

Form 1120-S

Filers not using earlier lines to figure a separate credit

Remaining credit reported on Part III, line 4g

Ensure Form 8900 is attached to the return

Form 3800

Deadline or filing window

Not stated in the official source

Checklist

What you need before filling it out

1

Qualified railroad track maintenance expenditures (line 1)

Tax records showing payments or incurred expenses · Form 8900 line 1

Forgetting to include indirect reimbursementsLow
2

Credit rate calculation (line 2)

Multiply line 1 by 40% (0.40) · Instructions p.1 – credit rate reduced to 40%

Using 50% rate mistakenlyMedium
3

Number of miles owned or leased (line 3a)

Records of owned/leased track miles · Form 8900 line 3a

Omitting miles assigned to othersLow
4

Assignment statement (line 3b)

Written statement with assignor name, TIN, effective date · Instructions p.2 – required statement details

Missing assignor informationHigh
5

Credits from Schedule K-1 (line 6)

Schedule K-1 (Form 1065) box 15 code AJ or Schedule K-1 (Form 1120-S) box 13 code AJ · Instructions p.2 – line 6 sources

Forgetting to include both schedulesMedium

Before you submit

  1. 1Enter total qualified railroad track maintenance expenditures on line 1.
  2. 2Enter 40% (0.40) of line 1 on line 2.
  3. 3Provide the number of miles of railroad track owned or leased on line 3a.
  4. 4Attach the required assignment statement if you are an assignor (line 3b).
  5. 5Report credits from Schedule K-1 on line 6.
  6. 6Attach Form 8900 to the appropriate tax return.
  7. 7Ensure the tax return containing Form 8900 is signed.

How to file this form

  1. 1Complete all required fields on Form 8900.
  2. 2Calculate the credit at 40% and record it on line 2.
  3. 3Attach any required assignment statements for mile assignments.
  4. 4Enter any Schedule K-1 credits on line 6.
  5. 5Attach Form 8900 to the primary tax return (e.g., Form 1120, 1120-S, or 1065).
  6. 6File the tax return with the IRS and retain a copy for your records.

Known limitations

  1. 1All other taxpayers are not required to complete or file this form if their only source for this credit is a partnership or S corporation.
  2. 2The assignee cannot reassign miles.
  3. 3If the assignor, in its required statement (see the instructions for line 3b above), assigns more miles than it has at the end of its tax year, the excess will be used to reduce each assignee's allocation in the same proportion as the assignee's original allocation of miles bears in relation to the total miles originally assigned.
  4. 4Qualified railroad track maintenance expenditures (QRTME) are expenditures (whether or not otherwise chargeable to a capital account) for maintaining, repairing, and improving a qualifying railroad structure that is owned or leased as of January 1, 2015, by a Class II or Class III railroad.
  5. 5For purposes of (2) or (3) above, the taxpayer is only eligible to claim the credit for miles of eligible railroad track assigned to it by a Class II or Class III railroad for purposes of the credit.

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 8900 (Rev. December 2023) is the current edition; the source points to www.irs.gov/Form8900 for the latest information and notes the credit rate was reduced to 40% for tax years beginning after 2022.

What changed or needs a fresh check

  • Edition date — confirm the revision reads December 2023 (Instructions p.1).
  • Fee — Not stated in the official source.
  • Mailing address — Not stated in the official source.
  • Signature — Not stated in the official source.

Quick Facts

Class II or Class III railroads, any person that transports property on them, any person that furnishes railroad‑related services to them, as well as partnerships and S corporations, must file IRS Form 8900.
The form collects the number of eligible railroad track miles owned or leased (line 3a), the miles assigned to another taxpayer (line 3b), the total miles assigned (line 3c), and the credit calculation (lines 3d‑5). It also requires a statement with assignor information and the credit amount from partnerships and S corporations (line 6).
Not stated in the official source
Not stated in the official source
Not stated in the official source
Enter the number of owned or leased track miles on line 3a, then reduce that amount on line 3b for any miles assigned. Provide the total miles assigned on line 3c and attach the required assignment statement. Multiply the combined miles on line 3d by $3,500 (line 4), compare to line 2 and enter the smaller amount on line 5, add any partnership or S‑corp credit on line 6, and sum on line 7. Sign the return before mailing or e‑filing.

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After you file

  1. 1Retain a copy of the filed Form 8900 with your tax records.
  2. 2Keep any assignment statements for future reference.
  3. 3Monitor IRS correspondence for any notices regarding the credit.
  4. 4Amend the return if you discover an error on Form 8900.

Sources

  • SRCInstructions p.1 — revision date is December 2023.
  • SRCInstructions p.1 — credit rate reduced to 40% for tax years beginning after 2022.
  • SRCInstructions p.1 — eligible taxpayers include partnerships and S corporations.
  • SRCInstructions p.2 — line 6 credits come from Schedule K-1 (Form 1065) box 15 code AJ and Schedule K-1 (Form 1120-S) box 13 code AJ.
  • SRCForm p.1 — line 2 entry is 40% (0.40) of line 1.
  • SRCInstructions p.2 — assignors must file Form 8900 even if no credit is claimed.
  • SRCInstructions p.2 — assignee cannot reassign miles.
  • SRCInstructions p.2 — QRTME is not reduced by reimbursements.

Common confusion points

Do I reduce QRTME by reimbursements?

Instructions state you do not have to reduce QRTME by any reimbursement.

Verify you have not subtracted reimbursements.

What credit rate should I use?

The rate changed from 50% to 40% for tax years beginning after 2022.

Confirm line 2 uses 40% (0.40).

Must an assignor file if no credit is claimed?

Assignors must file Form 8900 even if they do not claim any RTMC.

Check that Form 8900 is attached regardless of credit amount.

Which line reports Schedule K-1 credits?

Line 6 is for credits from Schedule K-1 (Form 1065) box 15 code AJ and Schedule K-1 (Form 1120-S) box 13 code AJ.

Ensure amounts are entered on line 6.

Can the assignee reassign miles?

The assignee cannot reassign miles.

Verify no reassignment is reported.

Do I reduce the basis of assets with the credit?

Use the RTMC amount to reduce the basis of qualifying assets, limited to the amount capitalized.

Check basis reduction follows Regulations section 1.45G-1(e)(2).

Workflow map

Related forms and next steps

4 signals

Before

Form 1065 — provides partner's share of RTMC credit for line 6.Form 1120-S — provides shareholder's share of RTMC credit for line 6.

Current

8900

After

Form 8900 — attached to the primary tax return (e.g., Form 1120, 1120-S, or 1065).

Often used with

Form 3800 — to claim remaining credit if not reported on earlier lines.

Questions about IRS Form 8900

What is IRS Form 8900 used for?

Form 8900 lets railroads and related businesses claim a credit for money spent keeping tracks, bridges, tunnels, and other structures in good shape. You report the miles of track you own, assign, and the credit amount, then attach any required statements. The credit reduces your tax liability.

Who must file IRS Form 8900?

Class II or Class III railroads, any person that transports property on them, any person that furnishes railroad‑related services to them, as well as partnerships and S corporations, must file IRS Form 8900.

What information does IRS Form 8900 require?

The form collects the number of eligible railroad track miles owned or leased (line 3a), the miles assigned to another taxpayer (line 3b), the total miles assigned (line 3c), and the credit calculation (lines 3d‑5). It also requires a statement with assignor information and the credit amount from partnerships and S corporations (line 6).

How do I complete IRS Form 8900?

Enter the number of owned or leased track miles on line 3a, then reduce that amount on line 3b for any miles assigned. Provide the total miles assigned on line 3c and attach the required assignment statement. Multiply the combined miles on line 3d by $3,500 (line 4), compare to line 2 and enter the smaller amount on line 5, add any partnership or S‑corp credit on line 6, and sum on line 7. Sign the return before mailing or e‑filing.

Do I reduce QRTME by reimbursements?

Instructions state you do not have to reduce QRTME by any reimbursement. Verify you have not subtracted reimbursements.

What credit rate should I use?

The rate changed from 50% to 40% for tax years beginning after 2022. Confirm line 2 uses 40% (0.40).

Must an assignor file if no credit is claimed?

Assignors must file Form 8900 even if they do not claim any RTMC. Check that Form 8900 is attached regardless of credit amount.

Which line reports Schedule K-1 credits?

Line 6 is for credits from Schedule K-1 (Form 1065) box 15 code AJ and Schedule K-1 (Form 1120-S) box 13 code AJ. Ensure amounts are entered on line 6.

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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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