If that sounds familiar, you are in the right place. You will see exactly what Schedule K‑2 and K‑3 do, when you must file, how the domestic filing exception works, and how to set up simple checklists so the one‑month date never surprises you again.
Key takeaways
- Schedule K‑2 extends Form 1120‑S to capture international items so your shareholders can finish their own filings with Schedule K‑3 and forms like Form 1116 and Form 8992. You attach K‑2 to the 1120‑S and furnish K‑3 to each shareholder on the same timetable as Schedule K‑1.
- The domestic filing exception for tax year 2024 can spare you from filing K‑2 and furnishing K‑3 if you meet all criteria, including limited foreign activity, timely shareholder notification, and no requests by the one‑month date.
- For a calendar‑year S corp on extension, the latest one‑month date is August 15, 2025. A request received by that date removes the exception for the requester. Requests after that date require furnishing K‑3 only to the requester, and may trigger K‑2/K‑3 filing for the next year if that person remains a shareholder.
- Penalties mirror Form 1120‑S and K‑1 rules. Failure to furnish a correct and timely K‑1 or K‑3 can draw a per‑statement penalty, and late or incomplete 1120‑S filings can trigger a per‑shareholder, per‑month penalty.
Pro tip: Put the one‑month date on every engagement timeline the day you file an extension. Future‑you will thank you.
What Schedule K‑2 and K‑3 actually do
Think of Schedule K‑2 as the S corporation’s international appendix to Schedule K. It standardizes how you report foreign‑related information, such as foreign‑source income, foreign taxes paid or accrued, expense allocation, PTEP, Subpart F and GILTI items, and PFIC data. Schedule K‑3 passes a shareholder’s exact share of those items to them, so they can complete returns like Form 1116, Form 8992, or Form 8621. Attach K‑2 to Form 1120‑S by the return due date, and furnish K‑3 on the same timeline as K‑1.
For 2024 instructions, the IRS also flagged updates, including Box 13 notes for certain other international items. If you have unusual cross‑border facts, check the “What’s New” section before you finalize e‑file.
Who must file, with quick scenarios
If your S corp has any item that affects a shareholder’s U.S. tax or reporting under the international provisions, complete the relevant parts of K‑2 and furnish K‑3. If there are no foreign items, you might still need to furnish K‑3 when a shareholder requests it by the one‑month date.
Common situations
| Situation | Must file K‑2 and furnish K‑3? | What to watch |
| You have foreign‑source income | Yes | Categorize by separate basket in Part II |
| You paid or accrued foreign taxes | Yes | Report in Part III, align with Form 1116 data |
| You own a CFC or receive data from a foreign affiliate | Yes | Parts IV, V, and VII may apply |
| No foreign items on your books | Maybe | If a shareholder requests K‑3 by the one‑month date, provide what is relevant for that shareholder |
| You think you qualify for the domestic filing exception | Maybe not | You must meet all criteria, including timely notice and no requests by the one‑month date |
In short, when in doubt, check the exception rules and your shareholder communications. The timing of a request, not just your fact pattern, can change your filing outcome.
The one‑month date, explained in plain English
The one‑month date is exactly one month before the date you file Form 1120‑S. If you extend a calendar‑year 2024 return and file on or after September 15, 2025, your latest one‑month date is August 15, 2025. Any request received on or before that date requires you to complete and file the relevant parts of K‑2 with the IRS and furnish K‑3 to the requester at the same time you file the return.
If a request arrives after the one‑month date, the exception can still apply for others. You furnish K‑3 only to the late requester by the later of your 1120‑S filing date or one month from the request date. If that requester is still a shareholder next year, you must complete the relevant K‑2/K‑3 for that shareholder in that next year.
Domestic filing exception for tax year 2024
The domestic filing exception can save you time when your international footprint is tiny, but it is all or nothing. You must meet all three criteria to skip filing K‑2 and furnishing K‑3 for tax year 2024.
The three criteria you must meet
- No or limited foreign activity Your only foreign activity is passive‑category foreign income with no more than $300 of creditable foreign income taxes treated as paid or accrued, and those amounts appear on a payee statement you received, such as a 1099 from a mutual fund.
- Shareholder notification by the K‑1 furnishing date You must tell shareholders, at or before the time you furnish Schedule K‑1, that they will not receive a Schedule K‑3 unless they request it. You can include the notice with the K‑1. Maintain proof of the notice.
- No Schedule K‑3 requests by the one‑month date If any shareholder requests K‑3 on or before the one‑month date, you must complete and file the relevant K‑2 parts with the IRS and furnish K‑3 to that shareholder. If no one requests by that date, you can rely on the exception for the year, subject to the late‑request rule below.
Heads up: For calendar‑year 2024 S corps on extension, the latest one‑month date is August 15, 2025. Put it on your calendar now.
Early requests, late requests, and next‑year consequences
- Request on or before the one‑month date File only the parts of K‑2 relevant to the requester and furnish that shareholder’s K‑3 when you file the 1120‑S. You do not need to furnish K‑3 to other shareholders if they did not request it.
- Request after the one‑month date You keep the exception for others. You must still furnish K‑3 to the late requester by the later of your filing date or one month after the request. If that shareholder still owns stock next year, you must file the relevant K‑2/K‑3 for that shareholder in that next year.
- Annual request reminder Beginning with 2024, the IRS clarified that partners and shareholders should request K‑3 annually, or opt in to ongoing delivery. Build an annual reminder into your organizer.
Filing, furnishing, and recordkeeping checklist
Your practical timeline
- Decide on extension and log the one‑month date the same day.
- Send the K‑3 notice with each shareholder’s K‑1, keep proof of delivery.
- Track requests, noting the date received and who requested.
- If a timely request arrives, prepare only the relevant parts for that shareholder, attach K‑2 to the 1120‑S, and furnish K‑3 on the filing date.
- If a late request arrives, calendar the furnish‑by deadline, then set a next‑year K‑2/K‑3 task for that shareholder.
Attach K‑2 and K‑3 to Form 1120‑S and file by the due date, including extensions. Furnish K‑3 on the same timetable as K‑1. Keep workpapers that show sourcing, allocations, translations, and any payee statements that support the exception.
What‑How‑Wow framework applied
- What K‑2 and K‑3 move international data from the entity to each shareholder in a standard format.
- How Use a one‑page SOP that covers notice language, request intake, part selection, and final review. Your SOP should specify where to store 1099s that show foreign taxes, how to map separate baskets in Part II, and how to tie foreign taxes in Part III to Form 1116 instructions.
- Wow Run a five‑minute pre‑file audit. Confirm the one‑month date logic, verify that Part II categories match Part III taxes, and spot‑check that any PFIC or CFC items in Parts VI and V line up with shareholder‑level forms. This reduces rework and those dreaded “can you resend K‑3 with corrections” emails.
A quick word on operations
If you ever felt that K‑2/K‑3 work drags partners into late‑night review loops, you are not alone. The fix is structure. Clear SOPs, standardized workpapers, and a simple escalation path keep reviews short and clean. If you use offshore capacity, treat it like operations, not staffing. That means layered reviews, file naming standards, deadline accountability, and continuity plans. This is exactly how Accountably supports firms that need predictable K‑2/K‑3 delivery without losing control of quality or workflow. Mentioned here once because it matters, not as a pitch.
Inside the form, Parts I through VII
Use this section as your quick tour. You do not always complete every part. Only fill the parts that match your facts.
| Part | What it covers | Typical shareholder forms |
| I | International items not reported elsewhere, plus certain statements | Varies by fact pattern |
| II | Source and separate category of income | Form 1116 or Form 1118 |
| III | Expense allocation and apportionment for foreign tax credit, foreign taxes paid or accrued | Form 1116 |
| IV | PTEP and section 986(c) currency gain or loss, distributions from foreign corporations | Shareholder records for PTEP tracking |
| V | Subpart F and GILTI information | Form 8992 and Form 1040 reporting of inclusions |
| VI | PFIC information | Form 8621 |
| VII | Foreign corporation net income by group for deemed‑paid FTC | Form 1118, corporate FTC context |
These descriptions track the IRS instructions for S corporations. If your software masks the section names, re‑label tabs so your preparers see the same language as your reviewers.
Part II and Part III, the pairing that drives most of the work
- Part II, sourcing Categorize by basket, then by source. This forms the base for the foreign tax credit limitation.
- Part III, allocation and taxes Allocate R&E and interest, then report foreign taxes paid or accrued. If you have only de minimis mutual fund foreign tax, Part III is still where the numbers sit if you are filing.
Parts IV, V, VI, and VII, when complexity shows up
- Part IV, PTEP and 986(c) Use when you have foreign corporation distributions that can be dividends or returns of PTEP.
- Part V, Subpart F and GILTI Feed your shareholders the inputs they need for Form 8992 and any 951 inclusions.
- Part VI, PFIC If shareholders have PFIC exposure, they will look for this section to complete Form 8621.
- Part VII, deemed‑paid taxes context This supports deemed‑paid foreign tax credit computations tied to Part V inclusions.
Penalties and how to avoid them
Two buckets matter here.
- Failure to furnish correct and timely K‑1 or K‑3 to a shareholder There is a per‑statement penalty if you miss the deadline or include incorrect information. The 2024 instructions note a $330 amount per failure, so delays or errors can add up quickly in multi‑owner entities. Document reasonable cause if you run into unavoidable issues.
- Failure to file a complete and timely Form 1120‑S Late or incomplete returns can trigger a per‑shareholder, per‑month penalty for up to 12 months. For returns due after December 31, 2024, the base monthly amount is $245 per shareholder. Calendar the extension, final due date, and one‑month date on day one. (eitc.irs.gov)
Practical guardrails: keep a copy of your shareholder notification, store payee statements that support the exception, and log every K‑3 request with a timestamp. This is your penalty defense file.
People, process, and tools that cut review time
- People Assign a single reviewer for Parts II and III because those sections connect. Make Part V a specialist review when CFCs or GILTI are in play.
- Process Use a two‑page SOP, a standardized file naming system, and a one‑click index of attachments. Require a pre‑review checklist that confirms source baskets, expense allocations, and that shareholder identifiers on K‑3 match K‑1.
- Tools Map your tax software’s K‑2 screens to the IRS parts. If your stack includes QuickBooks, Xero, UltraTax, CCH Axcess, Lacerte, ProConnect, Drake, Karbon, Canopy, Suralink, or JetPack, keep screenshots of where foreign tax and sourcing entries live so new staff do not hunt. A five‑minute screencast often saves an hour in review.
FAQs
What is Schedule K‑2 for an S corporation?
It is the extension of Schedule K that reports international tax items at the entity level so each shareholder can finish their own reporting with Schedule K‑3 and related forms. You attach K‑2 to Form 1120‑S and furnish K‑3 to shareholders on the K‑1 timetable.
Do S corps always file K‑2 and furnish K‑3?
You must complete the parts that match your facts when you have international items, such as foreign‑source income, foreign taxes, CFC or PFIC information. The domestic filing exception lets you skip K‑2/K‑3 for tax year 2024 if you meet all criteria and no shareholder requests K‑3 by the one‑month date.
What is the one‑month date in practice?
It is one month before the date you file the 1120‑S. For a calendar‑year 2024 S corp on extension, the latest one‑month date is August 15, 2025. A request received on or before that date requires you to file the relevant parts and furnish K‑3 to the requester with your 1120‑S.
What if a shareholder asks for K‑3 after the one‑month date?
You can still use the exception for others. You must furnish K‑3 only to the late requester by the later of the filing date or one month after the request, and you may need to include K‑2/K‑3 for that shareholder next year if they remain a shareholder.
Are there any recent instruction changes I should know?
Yes. The 2024 S corporation instructions confirm the domestic filing exception framework and include updates such as Box 13 notes in Part I. Always check the IRS instructions page before you e‑file, then update your workpapers.
Final checklist you can copy
- Confirm your return type, year, and extension status, then write down the one‑month date.
- Send K‑3 notices with K‑1s and save proof.
- Collect payee statements that show any foreign taxes, such as 1099s from funds.
- Track requests and decide which parts apply for each requester.
- Tie Part II baskets to Part III taxes, then spot‑check Parts IV through VII where relevant.
- Attach K‑2 to 1120‑S, furnish K‑3 on the K‑1 timetable, and archive your penalty defense file.
Compliance note, updated November 23, 2025: This guide summarizes IRS instructions for tax year 2024. Always confirm the latest instructions and notices on the IRS site before filing. This content is for general information, not tax advice for your specific situation.
When structure matters, not headcount
If you need extra hands to prepare or review K‑2/K‑3, add structure before you add hours. Standardized workpapers, named reviewers, and a clear escalation path eliminate back‑and‑forth. When firms ask Accountably for help, we integrate trained offshore teams into your workflow with layered reviews and file standards so partners are not stuck in review loops. Use us where it makes sense, skip us where it does not. The goal is simple, deliver accurate K‑2/K‑3 on time without chaos.
Editorial transparency: This article was drafted with the help of writing tools and was fact‑checked against current IRS instructions by our tax editors before publishing. Primary sources are cited above.
Resources
- IRS S corporation instructions for Schedules K‑2 and K‑3, including what’s new, who must file, timing, and parts overview.
- IRS summary page on 1120‑S K‑2 and K‑3 filing requirements, including annual request expectations.
- Penalty references for failure to furnish K‑1 and K‑3, and for late or incomplete Form 1120‑S filings.
Ready to stop the August scramble? Keep the one‑month date front and center, use the checklist above, and your next K‑2/K‑3 season will feel a lot lighter.