IRS Form 8288-C – If you’re involved in the sale or transfer of a partnership interest by a foreign person, understanding IRS withholding rules is critical to avoid penalties and ensure compliance. IRS Form 8288-C, officially titled Statement of Withholding Under Section 1446(f)(4) on Dispositions by Foreign Persons of Partnership Interests, plays a key role in secondary withholding scenarios.
This comprehensive guide covers everything you need to know about Form 8288-C, based on the latest official IRS resources as of February 2026, including the form itself (Revision January 2023), Instructions for Form 8288 (Revision January 2026), and related IRS guidance on partnership withholding.
What Is IRS Form 8288-C?
Form 8288-C is a multi-copy information return used exclusively when a partnership must withhold tax under IRC Section 1446(f)(4) because the buyer (transferee) of a partnership interest from a foreign seller (transferor) failed to withhold the required 10% under Section 1446(f)(1).
- Purpose: It reports details of the original transfer, the distribution triggering the withholding, the amount withheld by the partnership, and related information. Copy A attaches to Form 8288 (U.S. Withholding Tax Return for Certain Dispositions by Foreign Persons) and is sent to the IRS. Copy B goes to the transferee partner, and Copy C stays with the partnership.
The form does not replace Form 8288-A (used for primary withholding under Sections 1445 or 1446(f)(1)). It is a companion document specifically for the partnership’s backup withholding obligation.
Download the latest Form 8288-C: https://www.irs.gov/pub/irs-pdf/f8288c.pdf (January 2023 revision – current as of 2026).
Background: Section 1446(f) Withholding Rules
Enacted as part of the Tax Cuts and Jobs Act and finalized in regulations (T.D. 9926), Section 1446(f) ensures foreign persons pay tax on gain from selling partnership interests that is effectively connected with a U.S. trade or business (under Section 864(c)(8)).
- Section 1446(f)(1): The transferee (buyer) must withhold 10% of the amount realized on the disposition (unless an exception or reduced rate applies via certification). This is reported on Form 8288, Part III, with Form 8288-A.
- Section 1446(f)(4): If the transferee fails to withhold (or properly certify), the partnership steps in and withholds from distributions made to that transferee. The partnership withholds enough to cover the unpaid 10% of the amount realized plus interest (computed from 20 days after the transfer date under Section 6601).
This secondary withholding applies only to non-publicly traded partnerships (PTPs) for transfers on or after January 1, 2023. PTPs and certain other cases (e.g., distributing partnerships acting as transferees) are exempt.
Who Must File Form 8288-C?
The partnership (as withholding agent) prepares and files Form 8288-C when it:
- Has actual knowledge of a transfer of a partnership interest from a foreign person.
- Determines the transferee failed to withhold the full required amount under 1446(f)(1) or failed to provide timely certification of an exception.
- Makes a distribution to that transferee on or after the later of (1) 30 days after the transfer or (2) 15 days after the partnership learns of the transfer.
A separate Form 8288-C is required for each distribution per transferee per original transfer.
The transferee does not file Form 8288-C but may use Copy B to claim a refund if over-withheld.
Filing Deadlines and Where to File?
- Deadline: File Form 8288 (with attached Copy A of Form 8288-C) by the 20th day after the date of the distribution that triggers the withholding.
- Where to file: Ogden Service Center, P.O. Box 409101, Ogden, UT 84409.
- Payment: Use EFTPS (Electronic Federal Tax Payment System) for the withheld tax and interest. See IRS guidance on using EFTPS (updated October 2024).
The partnership must continue withholding on future distributions until the full liability (10% of amount realized + interest) is satisfied or the transferee provides a reliable certification that withholding is no longer required.
How to Complete Form 8288-C (Step-by-Step)?
Form 8288-C is straightforward with six key boxes. Complete a separate form for each distribution:
- Date of transfer (mm/dd/yyyy) — Date the foreign person transferred the partnership interest.
- Amount realized — Total amount the foreign transferor realized on the sale/transfer.
- Amount withheld — Federal tax (and interest) withheld by the partnership under Section 1446(f)(4) on this distribution.
- Date of this distribution (mm/dd/yyyy) — Date the partnership made the distribution to the transferee.
- Amount of this distribution — Gross amount distributed to the transferee.
- Other amounts withheld — Any withholding under other Code sections (e.g., Section 1441 on FDAP income) from the same distribution.
Header information:
- Withholding agent’s (partnership’s) name, U.S. EIN, and address.
- Partner’s (transferee’s) name subject to withholding, U.S. TIN, and address.
- Seller’s (transferor’s) name, U.S. TIN, and address.
- Distribution number (for tracking multiple distributions).
TIN requirement: Use SSN, EIN, or ITIN. Foreign addresses must follow the country’s postal format without abbreviating the country name.
On Form 8288 (the transmittal):
- Complete Part IV (Partnership Required to Withhold Under Section 1446(f)(4)).
- Report cumulative totals across all distributions to the transferee for that transfer (total distributions, other withholding, etc.).
- Attach only one Copy A of Form 8288-C per distribution per transferee.
Distribution of Copies
- Copy A: Attach to Form 8288 and file with the IRS.
- Copy B: Provide to the transferee partner (for their records or refund claim).
- Copy C: Retain for the partnership’s records.
How the Transferee Uses Form 8288-C?
The transferee can attach Copy B of Form 8288-C to their own Form 8288 (Parts III and/or V) to claim a refund or credit if the partnership over-withheld relative to their actual 1446(f)(1) liability. Do not attach it to your income tax return (Form 1040-NR, 1120-F, etc.). See Pub. 515 and Pub. 519 for details.
Penalties for Non-Compliance
Failure to withhold, file, or pay under Section 1446(f)(4) can result in:
- Failure-to-file and failure-to-pay penalties under Section 6651.
- Trust fund recovery penalty under Section 6672 (up to 100% of the tax for responsible persons).
- Criminal penalties under Section 7202 for willful failure.
- Collection of the tax (plus interest) directly from the partnership.
Accurate and timely filing of Form 8288-C helps demonstrate compliance.
Key Differences: Form 8288-C vs. Form 8288-A
| Aspect | Form 8288-C | Form 8288-A |
|---|---|---|
| Used For | Partnership’s 1446(f)(4) withholding on distributions | Primary withholding (1445 or 1446(f)(1)) by transferee |
| Filer | Partnership | Transferee (buyer) |
| Attached To | Form 8288 (Part IV) | Form 8288 (Parts I–III) |
| Copies | A (IRS), B (transferee), C (partnership) | A (IRS), B (transferor), C (transferee) |
| Applies To | Non-PTP partnership transfers on/after 1/1/2023 | Broader dispositions/distributions |
Tips and Common Pitfalls
- Always obtain the transferee’s TIN if possible; file without it if necessary—the IRS will follow up.
- Track cumulative withholding across distributions on Form 8288 Part IV.
- Document certifications of exceptions carefully to avoid triggering 1446(f)(4).
- For complex transactions, consider requesting a withholding certificate via Form 8288-B (though not directly for 1446(f)(4)).
- Consult a tax professional familiar with international tax, as rules involve effectively connected gain calculations and treaty benefits.
This article is for informational purposes only and is not tax or legal advice. Tax rules can be complex—always verify with the latest IRS publications or a qualified advisor.
Official Resources
- About Form 8288-C (last reviewed October 17, 2025)
- Instructions for Form 8288 (January 2026)
- Partnership Withholding Overview
- Pub. 515: Withholding of Tax on Nonresident Aliens and Foreign Entities
- Pub. 519: U.S. Tax Guide for Aliens
Stay compliant and avoid costly penalties by understanding your obligations under Section 1446(f). For the most current information, visit IRS.gov and search for “Form 8288-C” or “Section 1446(f)”.
Last updated February 2026 based on official IRS documents.