Moving between India and the US mid-year: dual-status returns and the W-8BEN trap

A mid-year move between India and the US splits your tax year in two, and the two halves follow different rulebooks. Most of the pain comes from two places: pinning down the day your US residency actually started, and the forms your banks and brokers still hold from your old tax status. This post covers both directions of the move, and flags exactly where the DIY line sits.

Am I a US tax resident for the year I move?

Unless you hold a green card, the test is the substantial presence test. You are a US tax resident for the year if both are true:

1. You were physically present in the US at least 31 days during the current year, and
2. Your weighted total reaches 183 days: all your days in the current year, plus one third of your days in the prior year, plus one sixth of your days in the year before that.

Two caveats for people coming from India:

• Exempt individual days do not count. Days on an F, J, M, or Q visa are excluded (F-1 students for up to five calendar years), reported on Form 8843. Many people who "moved" years ago as students only start counting days when they switch to H-1B.
• Your residency has a start date, not just a yes or no. If you meet the test, your residency starting date is generally the first day you were present in the US that year. One wrinkle: up to 10 days of earlier presence can be excluded if your tax home and closer connection on those days were in India, so a short March house-hunting trip does not automatically start your residency. The exclusion needs a statement filed with your return; have a preparer check it.

Rule of thumb for a first-time arrival with no prior US days: land by roughly July 2 and you cross 183 days in the arrival year. Arrive in August and you are a nonresident all year unless you make the first-year choice below.

What is a dual-status return, and what does it stop me from doing?

A dual-status return is one filing that covers both halves: nonresident (US-source income only) before your residency starting date, resident (worldwide income) after it. Since you are a resident on December 31 in an arrival year, you file Form 1040 with "Dual-Status Return" written across the top and attach Form 1040-NR marked "Dual-Status Statement" for the nonresident months. (The departure year flips this; see below.)

The restrictions are what surprise people. In a dual-status year you:

• Cannot take the standard deduction. You may only itemize. A narrow treaty exception exists for students and business apprentices from India under Article 21(2), but not for H-1B or L-1 arrivals.
• Cannot file a joint return, unless you make the election below.
• Cannot use head of household rates.
• Your India salary earned before the move is generally not taxed by the US, which is the entire upside.

Can I skip dual-status and file as a full-year resident instead?

Sometimes, through two separate elections:

• First-year choice. If you arrive too late to meet the substantial presence test, you can still elect residency from your arrival if you were present at least 31 consecutive days, present at least 75% of the days from the start of that period through December 31 (up to 5 absence days count as presence), and you meet the substantial presence test the following year. The sequencing trap: the election cannot be filed until you have met next year's test, which usually means extending the arrival-year return. On its own this gets you to dual-status, not full-year resident.
• The joint election (Sections 6013(g) and 6013(h)). If you are married and a resident at year end, you and your spouse can elect to be treated as full-year US residents and file jointly. That unlocks the standard deduction and joint brackets, but your entire year of worldwide income, including India salary from before the move, becomes US-taxable, offset only by the foreign earned income exclusion or foreign tax credits.

Which option wins depends on India-side income, India taxes paid, and both spouses' numbers. This comparison is the single best reason to pay a cross-border preparer for the arrival year: picking wrong costs real money in both directions.

What is the W-8BEN trap when my residency flips?

US payers decide how to withhold based on which certification form you gave them, and that form does not update itself when you move.

The default rule is blunt: most US-source income paid to a foreign person faces 30% withholding. Form W-8BEN claims the US-India treaty rate instead, 25% on portfolio dividends under Article 10, and the payer reports the withheld tax to you on Form 1042-S.

The trap in the arrival direction: you invested in US stocks from India with a W-8BEN on file, then moved and became a resident. The IRS instructions are explicit: moving to the United States is a change in circumstances, and the duty is on you to notify the payer within 30 days and submit a W-9. Miss it and the broker keeps withholding 25 to 30% on dividends that should carry no NRA withholding for a resident. The tax is usually recoverable as a credit at filing using the 1042-S, but a resident return paired with nonresident paperwork is exactly the mismatch that generates IRS letters. Leaving the W-8BEN in place also breaches the certification you signed under penalty of perjury, which promised a new form within 30 days of any change.

And once you are a resident, worldwide income is in scope: Indian bank interest, Indian mutual funds, and vested US equity all land on your return. If you hold RSUs, see RSU taxes on H1B for why withholding rarely matches your bracket.

What about the year I move back to India?

The same machinery runs in reverse, and it is easier to miss: nothing forces the update, and your broker keeps paying you like a US person until told otherwise.

• You are likely dual-status again: resident until your residency ending date, nonresident after. By default residency runs through December 31 unless you establish an earlier termination date via a closer connection to India and a statement filed with the IRS.
• The forms flip. In a departure year you are a nonresident on December 31, so Form 1040-NR is the return, with "Dual-Status Return" across the top, and Form 1040 attaches as the "Dual-Status Statement" for the resident months. Use the arrival-year configuration here and you file the wrong form.
• Your broker now holds a W-9 for someone who has become a nonresident. Until you replace it with a W-8BEN, no NRA tax is withheld on your dividends: you are underpaying US tax in real time. If the broker instead flags you as foreign with no valid W-8BEN, you get the undocumented default of flat 30%, not the 25% treaty rate. File it promptly and re-file before it lapses.
• One consolation: a nonresident not in the US 183 days that year generally owes no US tax on capital gains from selling US stocks, though India taxes them once you are resident there. Details in selling RSUs when moving back to India; green card holders should read about the US exit tax before surrendering anything.

This exact scenario, a returnee selling US shares after their residency has flipped, fills the return-to-India subreddits:

Two adjacent problems to solve elsewhere: India applies its own residency tests to the move year, and returnees often qualify for RNOR status, which can shield foreign income from Indian tax for a transition period (confirm with an Indian CA). And US states ignore the federal dual-status framework: California, for example, uses its own part-year residency rules, so your state return will not mirror your federal one.

When should I stop DIYing this?

Honest answer: earlier than most posts admit. If your move maps cleanly (single, arrived early in the year, no India income after arrival, no investments), a dual-status return is tedious but doable by hand. Either way, most mainstream DIY software cannot produce a dual-status return, and these returns generally cannot be e-filed: the package gets printed and mailed. Hire a cross-border preparer if any of these apply:

• You are married and need the dual-status vs. full-year joint election comparison run both ways
• You are considering the first-year choice and its extension sequencing
• You had brokerage income in both countries in the move year, or the wrong W-8BEN/W-9 was on file
• You have RSUs vesting across the move, Indian mutual funds, or rental income in India

If that is you, Lesser prepares dual-status and first-year returns for people moving between India and the US. If we aren't the right fit for your situation, we'll tell you upfront.