Mark-to-market election — meaning in cross-border tax

Mark-to-market election explained: its meaning in cross-border practice, and why it matters to your filing.

  • 15+Years of cross-border experience
  • 18,000+Clients served
  • 5.0Google rating
  • 4Global offices — India, USA, Canada & UAE
  • Offices in India, the USA, Canada and the UAE
  • Google rating 5.0 out of 5
  • 24-hour helpline: +1 (416) 619-0068
Definition

An election to tax a holding on its annual change in value rather than on realisation, available for certain foreign funds and used to escape the default regime.

Why anyone asks

What distinguishes US terminology is that it does not switch off when someone leaves. A definition that looks domestic is in fact extraterritorial, and it reaches ordinary local products and accounts.

The team at work in the open-plan office

Where the two systems can differ

A term that carries a bright-line test in one country often carries a facts-and-circumstances test in the other. That difference decides how a file is built long before it decides the tax, because one of them can be answered from a document and the other has to be evidenced.

Where it appears in a filing

Where you will actually meet Mark-to-market election is here — in a return, a certificate or a deadline rather than in a glossary.

What to do next

Recognising Mark-to-market election in your own paperwork is the useful skill. Working out which side of it you fall on is a short call. If a letter prompted this, bring the letter — it usually contains the answer to half the questions.

Terms like this are worth learning only to the point where you can spot the question. Past that point it is a computation on your own facts, and that is a conversation rather than a glossary entry.

Checked and signed off for the 2025 and 2026 filing seasons by Udit Gupta, Cross-Border Tax Expert, Legal Quotient Consultants. General information, not advice for your circumstances — call our 24-hour helpline to discuss your own position.

International tax accountant, in practice

The search that brings most people to this page is international tax accountant. It is answered here for mark-to-market election: what creates the obligation, which filings discharge it, and the fee agreed before the work starts.

Files that look like this one

Case study 1

Testing whether units were marketable before electing

A client wanted this election because the fund manager would supply nothing, but the election is only open where the units are marketable. We read the fund's constitutional documents and its dealing terms to establish whether it stood ready to redeem at net asset value, and checked how the units actually traded. One holding qualified on the redemption route and another, a closed vehicle, did not and had to be dealt with under the default regime. The engagement produced a documented eligibility conclusion for each holding, the election for the one that qualified, and a note of the documents relied on.

Case study 2

Rebuilding year-end values for a portfolio held abroad

The election stands or falls on the year-end value of each holding, and the brokerage reported values at its own period end rather than at the date required. We obtained historic net asset values for each fund at the correct dates, converted them on a consistent basis, and reconciled the unit counts to the statements so that reinvested distributions were not double counted. The engagement produced a valuation schedule for each year in question, with the source of every value recorded, and a repeatable process the client follows each year before filing.

Case study 3

Tracking previously included gains so a bad year gave relief

A fall in value is only deductible up to the gains already included and not yet reversed, so the deduction in a poor year depends entirely on a record nobody else keeps. This client had claimed inclusions across several rising years without maintaining that running total. We rebuilt it from the earlier returns and the valuation history, which established how much of the fall could be taken in the loss year. The engagement produced the running schedule, the supported deduction for that year, and the carried-forward balance that limits future deductions.

Case study 4

Settling the period before the election at the point of election

The holding had been owned for years before the election was considered, so electing prospectively would have left the earlier ownership exposed to the throwback rules whenever a distribution or sale arrived. We computed the earlier period on the basis that the units were disposed of at the point of election, disclosed it, and started the annual valuation from the new cost. The engagement produced that computation, the election, and a clean starting value, so subsequent years turn only on the change in value rather than on the whole history of the holding.

Case study 5

Explaining ordinary treatment to a client expecting capital gains

The client had held the fund for a long period and expected the favourable rate that a long-held investment usually attracts. Under this election the annual inclusion is ordinary income, and the reversal allowed in a falling year is not a capital loss. We set out both available elections for the same holding, with the rate consequence of each shown against the client's other income, so the decision was made knowingly. The engagement produced that comparison, a revised estimate of the tax payable for the year, and a written record of the reasoning behind the route chosen.

Case study 6

Timing a disposal so relief for the other country's tax was usable

Annual inclusions had been running for several years in one country while the other would tax nothing until the units were sold. Sold without thought, the disposal year would have carried foreign tax with almost no corresponding income to relieve it, while the earlier years had income and no foreign tax. We mapped the two timelines against each other and identified the years in which relief could actually be absorbed. The engagement produced that map, a recommended disposal window discussed with the client's other advisers, and the computations supporting the claim in the year of sale.

Case study 7

Treaty Relief Claimed on a Cross-Border Estate

The estate article can extend a proportionate credit where the two systems would otherwise both tax the same asset. Claiming it requires a valuation and a disclosure the estate may not expect to make.

Read how this one runs
Case study 8

Withholding Reduced by the Right Article

Dividends, interest and royalties each have their own article and their own rate, and the payer applies whichever it is satisfied of. Establishing entitlement before payment is what secures the lower rate at source.

Read how this one runs

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.

Industries & Client Types We Serve Worldwide

Global E-commerce & Marketplaces
Technology & SaaS
Professional Services Firms
Cross-Border Real Estate
Importers, Exporters & Manufacturers
Athletes, Artists & Entertainers
Remote Workers & Digital Nomads
Investment Funds & Holding Companies

Global E-commerce & Marketplaces

  • Foreign VAT / GST / sales tax registrations
  • Marketplace withholding reviews
  • Inventory nexus & PE analysis
  • Multi-currency books reconciled
Explore E-commerce & Marketplaces

Technology & SaaS

  • Cross-border revenue sourcing & withholding
  • IP structuring with real substance
  • Equity for cross-border teams
  • U.S. expansion: entity & PE setup
Explore Technology & SaaS

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.

  • Section 216 rental returns
  • FIRPTA withholding recovery
  • Section 116 clearance
  • Treaty credit optimization
Explore Real Estate

Importers, Exporters & Manufacturers

  • Transfer pricing documentation (s.247)
  • Customs value vs transfer price
  • Foreign affiliate reporting (T1134)
  • Country-by-country reporting
Explore Trade & Manufacturing

Athletes, Artists & Entertainers

  • Reg 105 & U.S. CWA agreements
  • Multi-state & country calendars
  • Touring income allocation
  • Royalty & image-rights withholding
Explore Athletes & Entertainers

Remote Workers & Digital Nomads

  • Residency analysis before moving
  • Employer payroll exposure
  • Totalization & social security
  • Foreign tax credits
Explore Remote Workers

Investment Funds & Holding Companies

  • Treaty access & PPT reviews
  • FAPI & surplus computations
  • Withholding-efficient routing
  • Governance & substance
Explore Funds & Holdcos

Mark-to-market election — the questions that follow

What is a mark-to-market election for foreign funds?

It is a choice to tax a qualifying holding on its annual change in value instead of waiting for a sale. At each year end you compare the value with your adjusted cost and bring the increase into income for that year; your cost then moves up to the new value, so the same rise is not taxed again later. Its purpose is to escape the default regime for foreign pooled investments, under which distributions above a permitted amount and gains on sale are thrown back across the whole holding period with an interest charge. Its attraction is that it needs nothing from the fund manager beyond a reliable year-end value.

Do I pay tax on gains I have not sold?

Yes. That is what the election does. It converts an unrealised rise in value into taxable income for the year in which the value rose. Nothing has been received, so the tax has to be funded from elsewhere, and that is the practical objection to it. Two things reduce the surprise. The amount depends entirely on the year-end value, so it can be estimated before the year closes rather than discovered afterwards. And because your cost rises by each inclusion, a later sale produces little or no further gain, so what is taxed over the life of the holding is the economic result rather than more than it.

Can I claim a loss if the fund falls in value?

Only against what you have already been taxed on. A fall in value is allowed as a deduction to the extent of gains previously included under the election and not yet reversed, and no further. So the first year of a holding that only ever falls gives you nothing, while a holding that rose for several years and then fell can absorb the fall up to the amount previously included. The asymmetry is deliberate, and it means the running record matters. You have to know, at any point, how much previously included gain is still available to reverse. Nobody produces that figure for you.

Are mark-to-market amounts taxed as capital gains?

No, and this is the main cost of choosing this route. The annual inclusion is ordinary income rather than a capital gain, so the preferential treatment that normally applies to long-held investments is not available, and the allowed reversal on a fall is not a capital loss either. Compared with the current-inclusion election, where the fund's own net capital gain keeps its character in your hands, this route can produce a higher rate on identical economics. It is chosen despite that, usually because the fund will not produce the information the other election requires. Setting out both outcomes for the same holding before electing is the only way to see which is worse in a particular case.

Which funds qualify for a mark-to-market election?

The units have to be marketable, which in practice means either that they trade regularly on an exchange the rules recognise, or that the fund itself stands ready to redeem them at their net asset value. A listed exchange traded fund usually qualifies. An open-ended fund that publishes a daily value and redeems at it usually qualifies. A closed vehicle with no ready market, a private pooled arrangement or an interest in a family holding company generally does not, and for those the choice narrows to obtaining annual statements from the fund or accepting the default regime. The test is applied to the particular units for the particular year, not to the manager as a whole.

Does Canada recognise a mark-to-market election?

No, and the mismatch is the part that needs planning. One country taxes you annually on the change in value under the election, while the other taxes the holding when it distributes and again when you sell. The same economic gain is therefore taxed in the two countries in different years, and relief for the other country's tax generally has to be claimed in the year that country imposes it. Left alone, that produces early years with inclusions and no foreign tax to credit against them, then a disposal year with tax abroad and little corresponding income at home. It is manageable, but only if the disposal year is chosen with the position mapped out rather than after the sale.

How would a foreign tax authority know I am resident there?

Mostly from information you or your bank already provided. Account-opening forms ask you to self-certify tax residence, and that certification is reported between authorities under the Common Reporting Standard or, for US accounts, under the FATCA framework. Beyond that: employer and payroll filings, property registries, immigration records and the tax filings of anyone who paid you. The realistic planning assumption is that the data arrives. See FATCA and information reporting.

Is double taxation illegal?

It is legal. Two countries can each have a valid claim on the same income — one because the income arose there, the other because you live there — and nothing prohibits both from exercising it. What exists instead is relief: tax treaties allocate the claim, and domestic law gives a credit for foreign tax paid. The relief is not automatic, though. It is claimed on a return, and unclaimed relief is simply lost. See how double taxation is relieved.

Our practitioners are alumni of leading accounting and tax institutions

Where our partners studied — CPA Canada (In-Depth Tax Program), AICPA, the Institute of Chartered Accountants of India and the Malaysian Institute of Accountants.

Request a Quote +1 (416) 619-0068