Schedule K-3 (Form 1065)
Schedule K-3: what to do with it, and which parts you actually need
A K-3 arrives behind a K-1 and almost nobody enters it into anything. That is the right instinct, and it is also why it gets lost. What follows is the route: which part feeds which form, when a partner is entitled to one at all, and what to write down so the person who signs the return can check you in a minute.
Download the K-3 part routing checklist
You are handing this to a reviewer, not to a client. What they will do with it is open the K-3 beside it and check that every part which applies has a row, that the part number and title are copied as printed, and that nothing has been quietly resolved on their behalf. A K-3 that cannot survive that minute is a K-3 that was not read.
Part titles and the forms each part feeds are taken from the Partner's Instructions for Schedule K-3 (Form 1065) for 2025 on irs.gov. The domestic filing exception and the one-month rule are from the Partnership Instructions for Schedules K-2 and K-3 (Form 1065) for the same year. Check the current year's instructions before you rely on either.
The document
Thirteen parts, and why the count matters
A Schedule K-3 for a Form 1065 partnership is not one schedule with a few lines. It is thirteen named parts, each of which belongs to a different form. Part II is the foreign tax credit limitation. Part V is distributions from foreign corporations. Part VII is PFICs and goes to Form 8621. Part XIII is deemed sale items on a transfer of a partnership interest, and it is the only part that names Form 8949.
That structure is the whole reason a K-3 is hard to hand over. Two partners in the same fund can hold completely different parts, because the K-3 is furnished per partner and only for the parts and sections relevant to that partner. A partner who has only ever seen Parts II and III may not know that Part VI exists, and a partner whose return includes an inclusion will be looking for a number that is not where they expected it.
| Part | What it feeds | What goes wrong with it |
|---|---|---|
| Part IPartner's Share of Partnership's Other Current Year International Information | Form 1116 or Form 1118, and whatever else the item points at | The catch-all. Splitter arrangements, foreign oil and gas taxes, dual consolidated losses and anything international that has no home in a later part land here. It is the part most often skimmed. |
| Part IIForeign Tax Credit Limitation | Form 1116 or Form 1118, by country and separate category | The one an individual partner claims a foreign tax credit from. If it is filled in, the credit on the return depends on these lines and not on the K-1 box 21 total. |
| Part IIIOther Information for Preparation of Form 1116 or 1118 | Form 1116 or Form 1118 | Section 4 carries the creditable foreign taxes. When Part II and the return do not reconcile, this is where the missing piece usually is. |
| Part IVInformation on Partner's Section 250 Deduction With Respect to Foreign-Derived Intangible Income (FDII) | Form 8993 | A corporate partner's part. Its failure mode is silence: a blank Part IV reads as no FDII information, which is not the same as zero FDII. |
| Part VDistributions From Foreign Corporations to Partnership | Form 1040 and Form 1120 (PTEP and section 986(c) currency gain); read with Schedule P (Form 5471) | Only relevant if the partnership took a distribution from a foreign corporation. Separating PTEP groups from the section 986(c) line is the whole job. |
| Part VIInformation on Partner's Section 951(a)(1) and Section 951A Inclusions | Form 8992, and Forms 1040 or 1120 | Subpart F and GILTI. An inclusion without the related section 960 amount is a half-read part, and the omission is invisible on the summary line. |
| Part VIIInformation Regarding Passive Foreign Investment Companies (PFICs) | Form 8621 | Carries the PFIC reference number. That number has to agree with the prior year's Form 8621 for the same holding, or the forms describe two different investments. |
| Part VIIIPartner's Interest in Foreign Corporation Income (Section 960) | Form 1118 | Domestic corporate partners and partners who made a section 962 election. It only means anything once Parts V and VI have been read. |
| Part IXPartner's Information for Base Erosion and Anti-Abuse Tax (Section 59A) | Form 8991 | Corporate partners subject to the BEAT. Gross receipts and the base erosion percentage denominator are the two figures that get picked up. |
| Part XForeign Partner's Character and Source of Income and Deductions | Form 1040-NR or Form 1120-F | For a foreign partner only. The effective connected income and fixed-or-determinable split is decided here, not on the K-1 itself. |
| Part XISection 871(m) Covered Partnerships | Form 1042 and Form 1042-S | Only for a section 871(m) covered partnership. The chapter 3 or chapter 4 indicator is the field that changes the answer. |
| Part XIISection 871(m) Tax Liability of a Qualified Derivatives Dealer (QDD) | Form 1042 | Sits next to Part XI and is not the same question. A QDD status misread as a covered-partnership status puts the liability in the wrong place. |
| Part XIIIForeign Partner's Distributive Share of Deemed Sale Items on Transfer of Partnership Interest | Schedule P (Form 1040-NR), Schedule P (Form 1120-F), Form 4797, Form 8949, Form 6252 | A transferred interest and a foreign partner. It is the only part that names Form 8949, which makes it easy to search for and easy to confuse with an ordinary capital transaction. |
When a partner is entitled to a K-3 at all
This is the part of the K-3 that practitioners actually argue about, and it has a defined answer. A domestic partnership can skip Schedules K-2 and K-3 entirely, and skip giving partners a K-3, when all four conditions of the domestic filing exception are met:
- No foreign activity, or no more than the threshold. The partnership either has no foreign activity, or only passive category foreign income with $300 or less of creditable foreign taxes.
- Every direct partner is an eligible type. U.S. citizen or resident individuals, certain domestic estates and trusts, S corporations, qualifying disregarded single-member LLCs, and domestic partnerships made up of those.
- Partners were told. No later than when they received the K-1, partners were notified that no K-3 would be sent unless they asked. That notice can be an attachment to the K-1.
- Nobody asked by the one-month date. The one-month date is one month before the partnership files Form 1065. For a 2025 calendar-year partnership filing on extension, the latest one-month date in the 2025 instructions is August 17, 2026.
Two consequences follow, and both show up in a firm's season rather than in a textbook. A request arriving after the one-month date does not break the exception for everyone: the partnership still does not file K-2 and K-3, but it must give the requesting partner the parts that apply within one month of the request. And a request can be made late, which is why a K-3 sometimes lands after the K-1 has already been keyed into the return. That is a second pass on a return that was treated as finished, and it is the case worth designing for.
The routing checklist, and the four habits in it
The download above is a plain CSV: one row per part, with the part number, the title as printed, the form it feeds, when to read it, and the field that goes wrong. It is a starting point, not a recomputation of the form, and it does not tell you whether a part applies to a given partner. What it does is stop a K-3 from being handed over as an unopened attachment.
| Habit | Why it earns its place |
|---|---|
| Which parts are present at all | The K-3 is supposed to carry the parts that apply to the requesting partner. A missing part is either genuinely inapplicable or a document you were not given, and those two are not the same problem. |
| The part number and the title together | Parts are cited as a roman numeral and a name, and the names have changed since K-2 and K-3 were introduced. A worksheet that records only "K-3 part 2" has lost the only thing that tells a later reviewer which year's layout it referred to. |
| Every cross-reference copied, not resolved | When a line points at another form or another part, copy the reference as printed and let the preparer follow it. Resolving it yourself is how a reviewer ends up checking your reasoning instead of the paper. |
| The K-1 and the K-3 kept as one item | Signed together in the workpapers, with the page ranges of each. A K-3 filed loose in the client folder is a K-3 nobody reads. |
The K-3 is not a bigger K-1
They arrive together, they share a font and a page size, and they answer different questions. The K-1 is a fixed set of numbered boxes: box 1 is ordinary business income, box 13 carries a letter and an amount, box 16 is a checkbox that says a K-3 is attached. That is a form you can read a row at a time and compare against another form line by line, which is exactly what the K-1 to CSV step does.
The K-3 is not that. It is a set of tables whose row structure changes with the part, whose lines are grouped by country and by separate category, and some of whose cells are cross-references rather than figures. There is no single column layout that makes it comparable at a glance, which is why treating it as "the same thing, but longer" is how a part gets skipped.
The working split is: the K-1 is transcribed, the K-3 is routed. Transcription is a job for a tool because it is mechanical and repeatable. Routing is a judgement about which parts touch this partner's return, and it stays with the preparer who knows the client.
What to write down while you read it
Three columns beside each row you touch: the part number and title as printed, the line or section within the part, and the page of the K-3 the figure sits on. If a cell holds a reference rather than an amount, write the reference and mark it as a reference. If a part is blank, write that it was blank rather than leaving the row out, because a reviewer cannot tell an inapplicable part from a part nobody opened.
Nothing in that record involves choosing a number. Where two printed figures disagree, the record says so and the preparer decides, and the same rule applies to anything read off a scan: the characters go across as printed and the doubt is flagged rather than resolved. That is the same discipline the K-1 worksheet uses, applied to a document that has more places to go wrong.
When not to use us
K1 FastTax reads Schedule K-1 boxes and codes from a PDF or an image and writes them to a CSV with the page each value came from. That is the whole product. It is the wrong tool in these cases, and saying so is cheaper than a support email:
- You have a K-3 and no K-1. We do not read Schedule K-3 or the statements attached to a K-1, on any plan. A K-3 on its own is not something this tool can do anything with.
- You need the numbers used, not read. Foreign tax credit limitation, the section 960 deemed paid figure, PTEP groups, PFIC references, the BEAT computation: none of that is done here. This tool does not compute anything about your return and does not decide where a number belongs.
- You need it filed or imported. There is no filing, and nothing is written into a tax package's file format. You key the return, from a worksheet you can check.
- It is one K-1 a year. Typing it is faster than learning a tool, and no page of this site will pretend otherwise. The arithmetic changes at volume, in season, when the same four boxes are read four hundred times.
- You want the K-1 corrected. We do not correct anything. Values go across as printed, and a figure you doubt is yours to change, not ours.
Plain answers
Questions about Schedule K-3
What is a Schedule K-3?
It is the international companion to a Schedule K-1. Where the K-2 is the partnership's own version, the K-3 is the partner's share of it, split across thirteen parts that map to particular forms: the foreign tax credit, subpart F and section 951A inclusions, PFICs, the section 250 deduction, the BEAT, and the items that only apply to a foreign partner. It is a partner-level document, not a copy of the partnership's return.
Do I need a Schedule K-3 for every K-1?
No. A domestic partnership can leave K-2 and K-3 out, and leave the K-3 off every partner's K-1, when all four of the domestic filing exception's conditions are met: no foreign activity or only passive category foreign income with $300 or less of creditable foreign taxes, every direct partner is an eligible type, partners are told with the K-1 that no K-3 will be sent unless they ask, and nobody asks by the one-month date. Any partner can still ask, and the partnership then has to supply one.
What is the one-month date?
One month before the partnership files Form 1065. In the 2025 instructions, the latest one-month date for a calendar-year partnership filing on extension is August 17, 2026. A request after that date does not break the exception for the other partners: the partnership still has to give the requesting partner the parts that apply, no later than one month after it receives the request.
Does one partner asking mean every partner gets a K-3?
No. If the request arrives on or before the one-month date the exception is lost and the partnership files K-2 and K-3, but it furnishes the K-3 to the requesting partner only, and only the parts and sections relevant to that partner. Everyone else is unaffected. A written request reaches each year unless the partner asked for all future years.
Why does a K-3 arrive after the K-1?
Because the request can come late. A partner who asks after the one-month date can be answered up to a month after asking, which is well into the partner's own filing season. The practical consequence is that the K-1 has often already been entered into the return before the K-3 exists, so the K-3 becomes a second pass rather than part of the first one.
Does K1 FastTax read the Schedule K-3?
No, on every plan. It reads the K-1: every box, every code, and the page each value came from. A checked box 16 adds a line to the review list so that the K-3 is not missed, and the CSV records the flag, but the K-3's own parts are yours to read. This page exists because that reading is real work and it deserves a route rather than a shrug.
Which parts of the K-3 does an individual partner usually need?
It depends on the partner's situation and on what the partnership completed, and this page cannot decide it. What is safe to say is that an individual claiming a foreign tax credit is working from Parts II and III; a partner with subpart F or section 951A inclusions is working from Part VI, and a corporate partner from the section 960 figure in Part VIII; and Parts IX to XIII are for corporate partners, foreign partners, or withholding situations. Read the partner's Instructions for Schedule K-3 for the year you are preparing.
Route the K-3, transcribe the K-1
K1 FastTax reads every box and code from a K-1 PDF into a CSV with the page each value came from, and flags a checked box 16 so the K-3 attached to it does not go missing. It does not read the K-3 itself.