What a Dual-Status Return Costs to Prepare, and Why It Is Really Two Returns in One

The dual-status return is the most expensive individual return most people will ever file for the least income, and the reason is structural: it is two returns with two rulebooks, joined at a date. What it is: a US taxpayer who is a nonresident alien for part of the year and a resident alien for the rest (the arrival year for a Canadian moving to the US; the departure year for a US resident who is not a citizen moving to Canada) files a dual-status return — a Form 1040 for the resident period reporting worldwide income from the residency start date, with a Form 1040-NR (or a statement) attached for the nonresident period reporting only US-source income before it, with the two periods governed by different rules on deductions (no standard deduction for a dual-status filer; itemized deductions only, and only for the resident period in most cases), filing status (married filing jointly is unavailable to dual-status filers absent the full-year election), credits (limited in the nonresident period), and income sourcing (the nonresident period's Canadian salary is not US income; the resident period's is). Why it costs multiples of a normal return. The residency date: the entire return hinges on the day residency began (the substantial presence test's first day of presence, the green card date, or the first-year election date) — a determination the preparer makes from travel records and visa dates, and one the software cannot make; a wrong date shifts income between periods and changes the tax. Two computations: income is split by period and by source — the Canadian salary before arrival excluded, the US salary after arrival included, investment income sourced and allocated, the Canadian accounts' income entering only for the resident period — with each item dated and converted. The elections: the first-year election (to be treated as a resident from an earlier date), the full-year resident election (for a dual-status filer married to a US person or resident — treating the whole year as resident, which restores joint filing and the standard deduction at the cost of worldwide income for the full year), and the treaty positions (the departure-basis election under Article XIII(7) for a Canadian arriving with appreciated assets — the departure-basis guide — disclosed on Form 8833) each require analysis and a computation of the alternative, because the cheapest election is found by preparing the return more than one way. The information returns: the arrival year is often the first year of FBAR, Form 8938, Form 8621 (Canadian funds), Form 3520 (a TFSA or RESP position), and Form 5471 (a Canadian corporation) — each a separate form with its own learning curve for the client and its own hours for the preparer, and each the reason the arrival-year return is as much an inventory as a tax computation. Paper filing: dual-status returns generally cannot be e-filed — they are assembled, printed, signed, and mailed, with the attachment sequence and the "Dual-Status Return" notation the IRS's processing expects — an administrative cost that recurring years don't carry. The state: the arrival state's part-year return runs alongside, with its own residency date (often different from the federal one) and its own sourcing. What the client is paying for, honestly: the residency determination, the two-period computation, the election comparison, the information-return setup, the treaty analysis, the paper assembly, and — the part that recurring years benefit from — the foundation: the arrival basis records, the account inventory, the elections made, and the Canadian-side coordination (the departure return in Canada, the treaty election, the account decisions) that the move guides cover. Published market ranges for dual-status preparation run several times a standard return's cost and vary with the information-return count; the range widens for filers with Canadian corporations, funds, or trusts, and narrows for a salaried mover with an RRSP and a chequing account. When the full-year election is cheaper: a mover married to a US citizen or resident who elects full-year residency files one ordinary joint 1040 — worldwide income for the whole year (the pre-arrival Canadian salary included, with the foreign tax credit for Canadian tax on it), the standard deduction and joint brackets restored, e-filing available — and the return is often both cheaper to prepare and lower in tax than the dual-status version, because the credit absorbs the pre-arrival Canadian income's US tax and the joint brackets do the rest; the comparison is run, not assumed, and it is the single most valuable hour of the engagement. The Canadian mirror: the departure-year Canadian return is its own project (the departure return with the deemed disposition, T1161, and the elections — the departure guides), priced separately, and coordinated with the US arrival return because each side's dates and elections feed the other. The recurring mistake: a mover whose US preparer, unfamiliar with dual-status mechanics, files a full-year resident 1040 without the election — including the Canadian pre-arrival salary as taxable without analysis, missing the treaty election, and skipping the information returns — a return that is wrong in three ways and cheaper in none of them once amended.

Key takeaways

• Two returns joined at a date: a 1040 for the resident period (worldwide income from the residency start) with a 1040-NR statement for the nonresident period (US-source only) — different deduction, filing-status, and credit rules for each.
• The cost drivers: the residency-date determination, the two-period income split and sourcing, the election comparison (first-year, full-year, treaty), the first-year information returns (FBAR, 8938, 8621, 3520, 5471), paper filing, and the state's part-year return.
• Market ranges run several times a standard return and scale with the information-return count — a salaried mover with an RRSP is the low end; a mover with a corporation, funds, or trusts is the high end.
• The full-year election often wins for married movers: one joint 1040, worldwide income for the year with the foreign tax credit on pre-arrival Canadian salary, standard deduction and joint brackets restored, e-filing available — cheaper to prepare and frequently lower in tax; always computed both ways.
• The arrival year builds the foundation: basis records, account inventory, elections, and Canadian coordination that every later year uses — the reason the first-year fee buys more than one return.
• The Canadian departure return is a separate, coordinated project with its own deemed disposition and elections.

What to bring to a dual-status engagement

Travel and visa records for the year (the residency date). Canadian income slips for the pre-arrival period and US income documents for the post-arrival period. Statements for every Canadian account at the arrival date (basis and information returns). The Canadian departure-return draft or dates (coordination). Your spouse's status (the full-year election). The list of Canadian funds, corporations, and trusts (the information-return inventory). With that folder, the return is two computations and an election comparison; without it, the first month is reconstruction. Fairlight's dual-status and first-year fees are on the pricing page.

Worked example

Two arrivals, one summer. Arrival one: a single software engineer moving from Toronto to Austin on July 10 with a Toronto salary through June, an Austin salary from July, an RRSP, a chequing account, and a TFSA holding two Canadian ETFs. The dual-status return: residency from July 10 (substantial presence, first day of presence); the Toronto salary excluded (nonresident period, not US-source); the Austin salary and the post-arrival investment income included; no standard deduction; the FBAR and Form 8938 for the Canadian accounts; two Form 8621s for the TFSA's ETFs (with the TFSA's closure recommended for next year); the Article XIII(7) election on Form 8833 for his appreciated brokerage holdings; paper-filed; Texas has no state return. The fee is several times what his Austin colleague pays for a W-2 return, and the engagement produces the basis ledger and account inventory his next five returns will use. Arrival two: a nurse moving from Vancouver to Seattle on the same date, married to a US citizen already in Seattle. Both returns are prepared: the dual-status version (her pre-arrival Vancouver salary excluded; married filing separately at the worst brackets; no standard deduction) and the full-year election version (a joint 1040 including her Vancouver salary with a foreign tax credit for BC tax that fully absorbs the US tax on it; the standard deduction and joint brackets; e-filed). The full-year election wins on tax by a wide margin and on preparation cost by a modest one — the comparison took an hour and saved her thousands. Two July arrivals, two right answers, and the second one existed only because the return was computed both ways.

Official sources

The IRS explains that a dual-status alien is a resident alien for part of the year and a nonresident alien for the rest, files a dual-status return, and may in some cases elect to be treated as a resident for the full year. — Internal Revenue Service, Taxation of Dual-Status Aliens, https://www.irs.gov/individuals/international-taxpayers/taxation-of-dual-status-aliens

The IRS explains that an individual meets the substantial presence test for a calendar year if physically present in the United States on at least 31 days during the year and 183 days during the three-year period that includes the current year and the two immediately preceding years, counting all days of presence in the current year, one-third of the days in the first preceding year, and one-sixth of the days in the second preceding year. — Internal Revenue Service, Substantial presence test, https://www.irs.gov/individuals/international-taxpayers/substantial-presence-test

Practitioner note

The dual-status return costs multiples of a normal one because it is two returns joined at a residency date the software can't find, plus the first-year information returns that make the arrival year an inventory. Our engagement runs the election comparison every time — the married mover's full-year election wins so often that not computing it is the most expensive omission in this area — and treats the first-year fee as what it is: the foundation ledger the next five returns are built on.

See also: For related pricing, see how CPA fees are structured — hourly, fixed, and monthly.

Next step

Fairlight handles dual-status and first-year US returns with the residency determination, election comparison, information-return setup, and coordination with the Canadian departure return. See pricing or book a call.