Who files Form 1065?

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Answer

US partnerships and multi-member LLCs, especially those with non-US partners or foreign activity. The obligation is decided by facts rather than by tax owing, which is why a nil position does not remove it.

The rule on who files

US partnerships and multi-member LLCs, especially those with non-US partners or foreign activity.

The team reviewing a file together at a desk

When the rule breaks

A partnership pays no tax but decides everyone's tax: the allocation and sourcing done here flow to every partner's return in every country involved, so an error is multiplied by the number of jurisdictions in the structure.

Who files Form 1065?
ItemAmount
Income taxed in both countriesC$106,000
Tax paid abroad (assumed 22%)C$23,320
Home tax on the same income (assumed 44%)C$46,640
Credit available (lesser of the two)C$23,320
Home tax still payableC$23,320

The credit absorbs C$23,320 and leaves C$23,320 payable at home, because the home rate on this income is the higher of the two. The balance is real cash and it is due on the home timetable, which is why instalments get raised in the first meeting.

These amounts illustrate the mechanism only. The rates and thresholds are assumptions of the example, not your numbers: each is checked against the issuing authority for your specific tax year before any return is filed.

Your next step

The full treatment — who it binds, the deadline, the penalty and the fixed fee — is on 1065 — partnership return with foreign partners. Send us the facts and we will tell you what has to be filed and what it costs.

Read and approved for the 2025 and 2026 filing seasons by Udit Gupta, Cross-Border Tax Expert, Legal Quotient Consultants. Published as general information. For a position on your own file, call the 24-hour helpline.

Where who has to file US tax return comes into this file

Most readers of this page are looking for who has to file US tax return. What follows sets out how it works for Form 1065: who is caught by it, what has to be filed, and what the work costs, agreed before it begins.

Files that look like this one

Case study 1

Multi-member LLC that believed it had nothing to file

Two people had registered a multi-member LLC for a venture that earned nothing in the US and had filed no partnership returns, on the understanding that a business with no US customers had no US return. Our work was to establish the entity's classification from its formation documents, confirm that the filing obligation rested on the facts about the entity rather than on tax being owed, and prepare the outstanding returns with allocations to each member. The engagement produced a filed set of partnership years and, for each member, a statement of their share they could take to their own adviser.

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Case study 2

A non-US partner joining part way through the year

A partnership admitted a partner resident abroad during its financial year, which changed both who the international schedules had to describe and how the year's income had to be split between the period before and after admission. We set out the allocation method in writing before preparing anything, tested it against the partnership agreement, and then sourced the income by country so the incoming partner's share could be evidenced at home. The engagement produced a filed return whose allocation the new partner's own adviser accepted without a reconciliation exercise.

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Case study 3

Dormant partnership brought back into the filing system

A partnership that had traded briefly and then gone quiet was still registered, still had partners in two countries, and had stopped filing on the assumption that a dormant business is invisible. We reconstructed each year from bank records and the partnership agreement, confirmed which years were genuinely nil and which were not, and filed the outstanding returns in order so the allocations ran consistently from one year to the next. The engagement produced a complete filing history and a written note of the facts supporting each year, which the partners could hand to their own advisers.

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Case study 4

Sourcing disagreement between the partnership and a partner abroad

A partner's adviser in another country rejected the source given to part of their allocated income, which would have moved the relief available to them at home. Rather than restate the return to suit one partner, we documented how each class of income had been sourced, which records supported it, and where the two systems genuinely describe the same receipt differently. The engagement produced a written sourcing position for the partnership that survived the partner's home-country enquiry, and a schedule the partnership now reuses each year rather than reopening the argument.

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Case study 5

Entity filing the wrong return for years after an election

A closely held business had elected corporate treatment years earlier, then changed advisers and quietly returned to filing partnership returns, so the entity was describing itself two ways in the same decade. We traced the election and the evidence that it had been made, established which return the entity was required to file for each year in question, and then corrected the years that did not match. The engagement produced one consistent classification, a filed set of returns on that footing, and a note on file explaining the history for anyone who examines it later.

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Case study 6

Final partnership return on a wind-up across several countries

A partnership was closing and its partners were resident in different countries, each with its own year end and its own timetable for reporting a disposal. The order of work mattered more than the arithmetic: we settled the closing allocations first, then the sourcing, then prepared the final return so that each partner received figures they could file with rather than provisional ones they would have to amend. The engagement produced a final filed return, closing statements for every partner, and a short memorandum recording how the wind-up had been allocated.

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Case study 7

Deemed Resident or Factual Resident — Not the Same File

The two statuses attract different returns, different credits and different provincial treatment, and the label is decided by facts rather than chosen. Establishing which applies is the work; the filing follows from it without argument.

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Case study 8

Coming Back to Canada After Years Abroad

Returning restarts Canadian residence and re-values what you own on the day you arrive. Foreign pensions, employer plans and accounts opened abroad each land differently, and the reporting thresholds are tested against the whole portfolio rather than each account.

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All case studies — every published engagement in one place.

Core International & Cross-Border Tax Services

International Tax Planning & Advisory

Strategy and compliance for income, assets and families spread across borders.

One coordinating team: filings on every side of the border are sequenced so treaty relief and foreign tax credits are claimed once — and in the right country.

U.S. & Cross-Border Tax Returns

Dual filers: U.S. citizens in Canada and Canadians with U.S. income run two parallel systems — we prepare both, in the right order, every year.

Expat & Emigration Tax

The move year is its own project: the elections and valuations filed that year decide the next decade of both countries’ returns.

Non-Resident Canadian Tax

Default withholding is 25% of gross: elective returns routinely turn over-withheld rent and pensions into refunds.

Transfer Pricing & BEPS

Documentation prepared with the return is the cheapest insurance in international tax; reconstructing it during an audit is the most expensive.

Cross-Border Estates & Trusts

Wills drafted for one country routinely misfire in the other — deemed disposition here, estate tax there, credits in between.

Cross-Border Corporate Tax

Expansion raises the same four questions every time — entity, PE, repatriation, payroll. We answer them before the tax authorities do.

India Tax for NRIs & Returning Residents

The deduction is taken on the sale price, not the gain — which is why an NRI property sale strands cash unless the certificate is applied for before closing.

Canadian Tax with a Foreign Element

Residency is decided on facts, not on a form — and the year you arrive or leave is the one where the largest amounts turn on the smallest details.

UAE Tax for Expats & Their Home Country

A zero-tax country is only half the answer — the question that decides the bill is whether the country you came from still treats you as resident.

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Global E-commerce & Marketplaces

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Cross-Border Real Estate

Foreign property income and sales are taxed in both countries by default; Section 216, FIRPTA and treaty credits are the standing toolkit.

Property is taxed where it sits, which is the one rule no treaty overrides. What the treaty does decide is the credit, the rate on the rent and what happens on the sale — and the clearance certificate on a disposition is applied for before closing, not after the buyer has already held the money back.

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Importers, Exporters & Manufacturers

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Athletes, Artists & Entertainers

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Remote Workers & Digital Nomads

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  • Foreign tax credits
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Investment Funds & Holding Companies

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  • FAPI & surplus computations
  • Withholding-efficient routing
  • Governance & substance
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What people ask us about Form 1065

Do we still file Form 1065 if the partnership lost money?

Yes. The obligation is decided by the facts about the partnership and its activity, not by whether tax is owing, so a loss year is filed on the same footing as a profitable one. There is a practical reason to want it filed as well: the loss has to be allocated to the partners before any of them can use their share of it, and that allocation only exists once the return exists. Partners in other countries then have to argue their share through their own system, which is far easier to do from a filed return than from a spreadsheet.

Does a multi-member LLC file Form 1065 or its own return?

A multi-member LLC is treated as a partnership for this purpose unless it has elected to be taxed as a corporation, so the default is Form 1065. The point that catches people is that the election is a positive step someone has to have taken and be able to evidence; a belief that the entity is a corporation because it feels like a company is not an election. Before we prepare anything we establish which classification the entity is actually in, because the two returns allocate income to entirely different people and correcting the choice after several filed years is slow work.

Do partners living outside the US file the partnership return themselves?

No. The partnership files one return for the business, and each partner receives the figures allocated to them to carry into their own return, wherever they file. That is why the partnership return matters more than its own tax bill suggests: it pays no tax itself, but the allocation and sourcing decided on it flow into every partner's return in every country in the structure. A partner cannot mend a bad allocation from their own return — they can only report what the partnership told them, or dispute it — so the work belongs at the partnership level.

We took no distributions, so is there partnership income to report?

Almost certainly yes. What a partner reports follows what the partnership allocated to them, not what was paid out to them, so a year in which the cash stayed in the business can still produce a taxable share for every partner. This surprises people who are used to being taxed on what reaches their bank account, and it is the usual reason a partner abroad tells us the return must be wrong. The answer is to show them how their share was arrived at, which again means the partnership return has to be right first.

Why does the partnership return ask about our foreign partners?

Because the return carries international schedules whose job is to report foreign partners and foreign-source items, and those schedules are what allow a partner outside the US to seek relief at home for the tax the partnership's income has already borne. Answering them properly means the partnership has to know where its income arose, not just how much of it there was. Partnerships that have never had to source income by country find this hard work in the first year and routine in every year after, because the analysis is repeatable once the books are set up for it.

Who is at fault if the partnership allocates income wrongly?

The practical answer is everybody. A partnership pays no tax but decides everyone's tax, so a mistake in the allocation or in the sourcing does not stay on the partnership return — it is multiplied by the number of jurisdictions in the structure, because each partner has reported a figure that is now wrong in their own country. Unwinding it means amending the partnership return and then supporting each partner through their own amendment, on their own timetable and in their own language. It is a good argument for spending time on the allocation before the return goes in.

What is OECD Pillar Two?

A global minimum effective tax for large multinational groups, delivered through top-up taxes rather than a single global rate. Where a group's effective rate in a jurisdiction falls below the agreed minimum, the shortfall is collected — by the parent jurisdiction under the income inclusion rule, by the source jurisdiction under a domestic top-up, or as a backstop by other jurisdictions. Canada has enacted implementing legislation. The compliance burden is data, long before it is tax. See BEPS and Pillar Two.

Does GILTI apply to individuals?

Yes, and it lands harder on them. An individual US shareholder of a controlled foreign corporation has the same inclusion a corporate shareholder does, but without an election gets neither the corporate-level deduction nor credit for the foreign corporate tax already paid — so foreign profit can be taxed at individual rates with no relief for tax the company paid abroad. An election to be taxed as though through a domestic corporation is usually the first thing to model. See Form 5471 and CFCs.

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