Your Biggest Tax Mistake May Happen Before You Leave the US

1. The mistake is usually made before the flight

The opening line of the explainer is worth repeating: your biggest tax mistake may happen before you leave the US, and it may have nothing to do with failing to pay your taxes. It can be a decision that looked perfectly normal from the American side and carried a completely different consequence from the Indian side.

Sold an investment. Rolled over a 401(k). Transferred money to India. Left a form unchanged at the bank. Waited until you had already become an Indian tax resident before you started planning. None of those look like mistakes at the time. Each one is difficult to unwind later.

That is the asymmetry this article is about. After you move, you can still file returns, hire a preparer, and correct reporting. What you cannot easily do is buy back the version of your financial life that existed while you were still a US resident and still had the full set of choices.

2. Residency first: two countries, two different tests

Before you sell anything, withdraw anything, or restructure anything, there is one question to answer: who considers me a tax resident? Because two countries are answering it, and they are answering it with different rules.

The United States looks at citizenship, immigration status and physical presence. A green card holder is a US tax resident while the card is held. A long-staying H-1B holder can also be treated as a resident under the substantial presence test once enough days have accumulated across the relevant years. That is why an engineer who has been in the US for a decade on a work visa is not in the same position as a citizen, and why "I will just stop being a resident when I fly" is not a plan. The day-count mechanics are set out on the IRS substantial presence test page.

India answers separately, and produces three possible outcomes: non-resident, resident but not ordinarily resident, and resident and ordinarily resident. Which one you land in depends on how many days you spend in India in the financial year and how many years of residence you have behind you.

Two consequences follow. First, the two countries can consider you a tax resident at the same time during a moving year, which is exactly what the treaty exists to resolve. Second, the Indian side of that answer is not fixed at the moment you land. It is a status that can change, and the planning you do depends on knowing which status you are in and when it changes. Our RNOR explainer walks through the three outcomes.

3. The RNOR window is a planning period, not a formality

RNOR is the status the video calls a potentially valuable planning period. Depending on your history, it can run for one, two or three years, and in that period the Indian treatment of certain foreign income and foreign assets differs from what it becomes the moment you are fully resident and ordinarily resident.

The practical instruction is simple and easy to get backwards. Residency comes first, then restructuring. You do not need to make every financial decision on day one, but you do need to understand four things before you start moving money: what your residency status is going to be, how long the RNOR period will last, what changes when you become ROR, and which moves belong inside the window.

Families who get this right treat the window as the cheap period for restructuring. Families who get it wrong spend the window closing accounts and then discover the decisions they actually needed were about how the accounts were held, not whether they existed. Our comparison of what RNOR status actually changes is the place to start, and the free RNOR status tool will estimate your own window from your arrival dates.

4. The $60,000 estate threshold nobody puts in the moving checklist

Residency decides how India looks at your worldwide income. It does not decide what the United States does with the assets you leave behind, and this is the gap where the numbers get genuinely alarming.

The US federal estate tax works on two completely different scales. A US citizen or domiciliary has a basic exclusion of $15,000,000 in 2026. An estate of a non-resident who is not a US citizen is taxed on US-situated assets, and a US estate tax return is required once those assets exceed $60,000, with tax above that running up to 40% and generally payable within nine months of death.

US real estate and stock in US corporations are the classic in-scope assets. Certain bank deposits and life insurance proceeds may be excluded, so it is not true that every US account is taxable. But for a returning family holding a US home, brokerage accounts, or a meaningful share position, the distance between a $15,000,000 exclusion and a $60,000 threshold is the whole problem.

The timing point is what makes this a pre-departure conversation. Some of the planning has to happen while you are still in the US, because once you have moved and restructured, your options are different. That is also why the question to ask about any US asset is not just "what return does it produce?" but "what happens to this if I stay an Indian resident for the next twenty or thirty years?" The IRS sets out the non-resident position in its guidance on estate tax for nonresidents not citizens and in the Form 706-NA instructions; our own breakdown is in US estate tax for NRIs moving back, and the cover that is commonly used to fund the bill is explained on the US estate tax and term insurance page.

5. The DTAA is not a "paid once" shield

Once residency and estate tax are on the table, the next question is which country gets to tax your income. This is where the confusion peaks, because the common belief is confident and wrong: I paid tax in the US, so I do not have to pay tax in India.

The India-US double taxation avoidance agreement does not work like that. It allocates taxing rights by type of income, and the types behave differently. Interest income, capital gains, 401(k) distributions, Social Security and rental income do not share one rule. The treaty can affect who taxes, what is withheld at source, and how the foreign tax credit is claimed.

So the useful questions are not "which country taxes me?" but these five: what type of income is this, which country has the taxing right, what gets withheld at source, what has to be reported in India, and can a foreign tax credit be claimed. Only after those do you get to the structuring question, which is how to hold the assets so the overall treatment is as efficient as it can lawfully be.

That is why the video frames cross-border planning as more than filing correctly. It is about making the right decisions before the return is even prepared. Our DTAA guide walks through the categories, and the India tax filing service handles the return once the sequence is right.

6. Compliance: the accounts that must change when your status changes

Even if everything is calculated correctly, you can still end up with a compliance problem, because your status is changing in two countries at once. This is the least exciting part of a return and the part that creates the most avoidable damage.

Start with banking in India. When your residential status changes, your existing NRE and NRO accounts have to be updated to a resident account, because from a FEMA perspective you are now resident. The same logic applies to your demat and other holdings. These are not optional tidy-ups; they are status changes your bank is required to reflect.

On the US side, you need to tell your banks and brokerages that you have moved. Your tax residency has changed, withholding can change with it, and there are account forms that need updating.

Then the reporting layer, which is where the accumulation of a long career shows up. Once you are ROR, foreign assets and foreign income can create additional reporting in India. Think about what fifteen or twenty years in the US actually leaves behind: a 401(k), an IRA, bank accounts, a brokerage, possibly property. Many returning families have never had to think about reporting any of it in India before. When reporting is missed or incorrect, the consequence can be entirely separate from the tax you owe, which is why the video says plainly not to treat compliance as paperwork. Treat it as part of the financial plan. The Income Tax Department's NUDGE guidance explains the schedules, and the pattern of mistakes is covered in the five mistakes NRIs make with US assets.

7. Forms and elections: 89A, Form 10-EE and the W-8BEN

The fifth item is the one people underestimate, because it assumes you already understand the first four. You can understand the rules, understand your residency, and still get the implementation wrong by filling in the wrong form, failing to make an election, or missing the timing. When that happens, the treatment you intended simply does not occur.

The clearest example in the video is US retirement accounts. Take a 401(k) or a traditional IRA. How India treats it on the way out becomes extremely important, and there is a specific relief built for exactly this: Section 89A of the 1961 Act, carried into Section 158 of the Income-tax Act 2025, allows income from a specified foreign retirement account to be taxed in the year it is withdrawn rather than year after year as it accrues, with an election in the prescribed form: Form 10-EE under Rule 21AAA of the old rules, which the video says is now called Form 40 under the new Income-tax Rules, 2026. The condition attached to it is the reason this cannot be copied from a friend: the account type matters, your residency matters, the timing matters, and the applicable rule matters.

On the US side there is a mirror-image form. Once you are no longer a US tax resident and you receive certain US-source income, your bank or brokerage will generally want Form W-8BEN on file so that the treaty rate applies instead of the default withholding. The questions to be able to answer are concrete: what am I declaring, what is my tax status, what withholding rate applies, does the treaty apply to this income, and what does that mean when I file in India? Retirement account sequencing for returning NRIs is covered in more detail in 401(k) options when moving to India.

8. Why these are one decision, not five

Put the five together and the reason for the sequencing becomes obvious.

• Residency decides your status in both countries.
• Estate tax decides what happens to the US assets you leave behind.
• The treaty decides which country taxes which kind of income, and how credit and withholding work.
• Compliance decides what has to be changed at banks and brokerages, and what has to be reported in India.
• Forms and elections decide whether the treatment you planned is the treatment you actually get.

They are connected in a specific direction. Residency affects tax treatment. Tax treatment affects how you should structure assets. Structure affects estate exposure. Residency also drives the compliance changes, while elections determine whether the intended tax treatment is implemented at all.

Which is why the video rejects the most common shortcut in this whole area: "I will just hire someone to file my taxes after I move." By the time a preparer sees the return, some of the important decisions have already been made, and a return can only report what happened. Sequencing the decisions before the move is a different service from filing after it; that is what our cross-border tax planning is for, and it is why the planning question is asked first and the filing question second.

9. What to do in the months before you fly

The closing instruction of the explainer is the one to keep: do not wait until you land in India to start planning your return. The best time to plan your cross-border finances is while you are still in the US.

In practice that means four things, in order. Establish what your US and Indian residency positions will be, and when each changes. Identify which accounts and assets will be affected by that change, including anything with a US situs for estate tax purposes. Decide what has to be done while you are still resident in the US, because those are the items with a deadline attached. Then line up the elections and forms so that the treatment you have planned is the treatment that is applied.

Families who want the whole sequence mapped against their own dates can use the free return planner and the RNOR status tool, and read how RNOR timing shapes the return date alongside what happens to a 401(k) after you leave the US.