Every April, thousands of NRI engineers in the US face the same shock. RSUs vested throughout the year, the employer withheld 22% for federal taxes, but the actual bracket was 32% or 37%. That gap runs into thousands of dollars, and it compounds with every vesting event.
If you are a high-income W-2 employee with RSU compensation, you need a specific plan. Not the generic advice written for freelancers or business owners.
The 7 strategies below are built for your situation: a salary, RSUs vesting throughout the year, a US bank account, and often an Indian NRO or NRE account on the side.
Why RSU Tax Planning Is Harder for NRIs
RSU income sits on top of your W-2 salary. The combined total pushes most NRI tech employees into the 32% or 37% federal bracket. Add state income tax, which runs from 9% to 13% in California and New York.
Then there is the Net Investment Income Tax (NIIT): a 3.8% surtax on investment income for high earners. NRIs with Indian NRO interest, fixed deposit income, or rental income from India hit the NIIT threshold faster than most.
You also cannot use strategies available to self-employed people, like a solo 401(k) or S-corp salary arbitrage. As a W-2 employee, your tools are more limited. But they are still powerful. To understand how RSUs are taxed before diving into the strategies, read our full guide on RSU taxation for NRIs in the US.
1. Fix Your RSU Withholding Gap Before Tax Season
Your employer withholds federal tax on RSU income at the IRS supplemental withholding rate of 22% for the first $1 million in supplemental wages. For tranches above $1 million, the rate rises to 37%.
The problem: if your combined income puts you in the 32% or 37% bracket, you are underpaying throughout the year. The IRS charges underpayment penalties when you owe more than $1,000 at filing and your payments fell below 90% of the current year's tax or 100% of the prior year's tax.
Take Rahul, a software engineer in Seattle earning $200,000 salary plus $80,000 in RSU vesting in 2026. His employer withholds $17,600 (22%) on the RSUs. His real marginal rate is 32%, so he owes $25,600. The gap is $8,000, due at filing in April.
How to fix it:
- File a new Form W-4 with your employer requesting additional withholding on each paycheck
- Make quarterly estimated tax payments using Form 1040-ES, due April 15, June 16, September 15, and January 15
- Model your full-year income at the start of each year, including every scheduled vesting event, and calculate what you will owe
Best for: Any NRI whose total income (salary plus RSU vesting) exceeds $103,350 as a single filer or $206,700 as a married filer (the 22% bracket ceiling in 2026).
2. Maximize Your 401(k) to Cut Taxable Income Directly
Every dollar you contribute to a traditional 401(k) reduces your W-2 taxable income dollar for dollar. For a high-income NRI in the 32% bracket, maxing the 401(k) in 2026 saves $7,840 in federal tax alone. In the 37% bracket, that rises to $9,065.
2026 IRS contribution limits:
- Employee contribution: $24,500
- Catch-up contribution (age 50 or older): additional $8,000, total $32,500
- Enhanced catch-up (ages 60 to 63): additional $11,250, total $35,750
The 401(k) also reduces your modified adjusted gross income (MAGI), which matters for NIIT planning (covered in Strategy 6).
If your employer offers a match, capture the full match before doing anything else. That is an immediate 50% to 100% return on the matched portion, which beats every other tax strategy you will execute.
One cross-border note: when you eventually return to India and withdraw your 401(k), India taxes those withdrawals as pension income at favorable rates under the US-India DTAA. For a full comparison of retirement account options as an NRI, see our guide on 401(k) vs IRA choices for NRIs.
Best for: Every W-2 NRI earning above $100,000. Start here before anything else.
3. Use an HSA as a Triple Tax-Free Investment Account
A Health Savings Account (HSA) gives you three tax advantages at once. Your contribution is tax-deductible, the money grows tax-free, and withdrawals for qualified medical expenses are also tax-free. For high-income NRIs, this functions as a second retirement account.
You need to be enrolled in a High-Deductible Health Plan (HDHP) to contribute to an HSA. If your employer offers one, the math is worth running.
2026 HSA contribution limits:
- Individual coverage: $4,400
- Family coverage: $8,750
After age 65, you can withdraw from the HSA for any purpose, paying ordinary income tax on non-medical withdrawals but no penalty, just like a traditional 401(k).
Consider Priya, age 35, enrolled in family HDHP coverage. She contributes $8,750 to her HSA in 2026. At a 35% combined federal and state bracket, that saves her roughly $3,060 this year. Invested in a low-cost index fund inside the HSA and left untouched for 30 years at a 7% annual return, that single year's contribution grows to over $66,000, all available tax-free for qualified medical expenses.
Best for: NRIs on employer-sponsored HDHP plans who can pay current medical bills out of pocket and leave the HSA to compound.
4. Hold Your RSU Shares for 12 Months to Access Long-Term Capital Gains Rates
When your RSUs vest, the fair market value on the vest date is taxed as ordinary income. That happens automatically. You cannot avoid it. But what happens when you eventually sell the shares is your decision.
Sell within 12 months of vesting: any gain is short-term capital gains, taxed at your ordinary income rate, which is 32% to 37% for most high-income NRIs.
Hold for at least 12 months and one day before selling: the gain becomes long-term capital gains (LTCG). For high earners, the federal LTCG rate is 20%. Add the 3.8% NIIT and the effective federal rate is 23.8%, roughly 13 percentage points below the top ordinary rate.
The real risk here is concentration. Holding a single stock for 12+ months to save tax only makes sense if you are comfortable with the stock declining during that period. A 20% stock drop is not covered by a 13% tax saving.
One way to manage gains from selling: use tax-loss harvesting in your broader portfolio to offset RSU gains with losses from other positions. Our detailed guide on tax loss harvesting for NRIs explains how to do this without triggering the wash-sale rule.
Best for: NRIs comfortable with single-stock concentration risk for 12 months, and those with offsetting losses elsewhere in their portfolio.
5. Donate Vested RSU Shares to a Donor Advised Fund
A Donor Advised Fund (DAF) is a charitable giving account held at a sponsoring organization. You contribute assets, receive an immediate tax deduction, and then recommend grants to charities over time.
For RSU holders, the mechanics are unusually powerful. When you donate shares held for more than 12 months directly to a DAF, two things happen at once. You never sell the shares, so you never realize the capital gain. And you receive a charitable deduction for the full fair market value of the shares on the date of donation.
Consider Amit, who holds $20,000 of RSU shares with a cost basis of $5,000, held for over 12 months. If he sells the shares and donates the cash, he first pays $3,562 in capital gains tax (23.8% on the $15,000 gain). If he donates the shares directly to a DAF instead, he pays zero capital gains tax and receives a $20,000 deduction worth $7,400 at the 37% federal rate. The total tax benefit of donating shares versus donating cash is over $11,000 on a $20,000 donation.
DAF accounts at Fidelity Charitable, Schwab Charitable, and Vanguard Charitable have no minimum account balance and allow grants of $50 or more to any IRS-qualified public charity. Many NRIs use them to support temples, schools, and family welfare institutions, or US nonprofits.
You can also bunch multiple years of charitable giving into one DAF contribution in a high-income vesting year, allowing you to itemize deductions that year while taking the standard deduction in lower-income years.
Best for: NRIs who already give to charity and hold appreciated RSU shares held for more than 12 months.
6. Plan Around NIIT: The 3.8% Tax High-Income NRIs Often Miss
The Net Investment Income Tax (NIIT) applies a flat 3.8% to net investment income for taxpayers whose MAGI exceeds a fixed threshold. Unlike most tax brackets, these thresholds are not adjusted for inflation. They have been unchanged since the tax took effect in 2013.
NIIT thresholds (2026):
- Single filers: MAGI above $200,000
- Married filing jointly: MAGI above $250,000
- Married filing separately: MAGI above $125,000
NIIT applies to capital gains, dividends, interest, rental income, and royalties. For NRIs, this creates a compound problem. NRO account interest from India, Indian fixed deposit interest, and rental income from Indian property all count toward MAGI. A NRI whose W-2 income alone sits just below $200,000 can be pushed well past the NIIT threshold once India-source income is added.
Neha earns $210,000 from her W-2 job plus $15,000 in NRO account interest from India. Her MAGI is $225,000. She sells RSU shares with $30,000 in long-term gains. NIIT applies to $25,000 of that gain (the lesser of net investment income or the amount above the $200,000 threshold). That is an additional $950 in tax that does not appear anywhere on her pay stub.
Strategies to stay below or reduce NIIT exposure:
- Maximize traditional 401(k) contributions: reduces MAGI directly
- Maximize HSA contributions: also reduces MAGI
- Time large RSU sales across two tax years to stay under the NIIT threshold in at least one year
- Recognize that Indian FD interest, NRO account interest, and India rental income all add to your MAGI
Best for: NRIs with combined W-2 plus investment income near or above the $200,000 or $250,000 threshold.
7. Use the RNOR Window to Sell RSU Shares Tax-Free If You Return to India
This strategy is specific to NRIs planning to return to India, and no competitor article on RSU tax planning covers it.
When you return to India after years abroad, Indian tax law grants a transitional status called RNOR: Resident but Not Ordinarily Resident. During RNOR status, income from foreign sources, including capital gains on US stocks held in US brokerage accounts, is not taxable in India. You pay only US tax, at the long-term capital gains rate.
RNOR eligibility applies when you were an NRI for at least 9 of the last 10 financial years, or when your total stay in India during the preceding 7 years was 729 days or fewer. Once you qualify, RNOR status typically lasts 2 to 3 financial years.
Vikram returns to India in January 2026 and qualifies for RNOR. In March 2026, he sells $100,000 of RSU shares held for more than 12 months. In the US, he pays LTCG tax of 20% plus NIIT of 3.8%, totaling $23,800. In India, he pays nothing, because those gains are foreign-source income exempt during RNOR. If he had instead waited, lost RNOR status, and become an ordinary Indian resident before selling, India would have also taxed the same gains at slab rates, potentially adding up to 30% more.
The RNOR window is a narrow but significant opportunity for NRIs who hold a meaningful RSU position. For full eligibility rules and planning details, read our article on RNOR status for returning NRIs.
Best for: NRIs who hold a significant RSU or US stock position and plan to return to India within the next 1 to 5 years.
Conclusion
RSU tax planning for high-income NRIs on a W-2 comes down to using the right moves in the right order. Fix the withholding gap first. Max your 401(k) for the most direct income reduction.
Use an HSA if you are on an HDHP. Hold shares for LTCG treatment where concentration risk allows. Donate appreciated shares through a DAF if you give to charity. Plan your MAGI carefully to avoid the NIIT cliff.
And if returning to India is on the horizon, the RNOR window may let you exit your RSU position at a combined tax rate significantly lower than what you would pay later.
Frequently asked questions
How are RSUs taxed for NRIs at the time of vesting?
When your RSUs vest, the fair market value of the shares on the vest date is treated as ordinary income and reported on your W-2.
You pay federal income tax, state income tax, and FICA on that amount, just like salary. Your employer typically withholds shares to cover the tax at the supplemental withholding rate of 22%, but this often falls short of the actual amount owed if your total income places you in a higher bracket.
Can NRIs contribute to a 401(k) to reduce RSU tax?
Yes, and it is one of the most direct strategies available to W-2 employees. In 2026, you can contribute up to $24,500 to a traditional 401(k).
That amount is excluded from your taxable W-2 income, reducing both your federal and state income tax.
Even if you plan to return to India, the 401(k) continues to grow tax-deferred, and India taxes 401(k) withdrawals as pension income at favorable rates under the US-India DTAA.
What is the NIIT and does it apply to my RSU capital gains?
NIIT is a 3.8% federal surtax on net investment income. It applies when your MAGI exceeds $200,000 for single filers or $250,000 for married filers.
If you sell RSU shares at a gain and your MAGI crosses those thresholds, NIIT applies to the lesser of your net investment income or the amount above the threshold. For most high-income NRIs, this tax applies almost every year.
Can I avoid capital gains tax on RSU shares by donating to a Donor Advised Fund?
Yes. If you donate RSU shares held for more than 12 months directly to a DAF, you never trigger a sale, so you never realize a capital gain. You also receive a charitable deduction for the full fair market value at the time of donation. This is one of the most tax-efficient ways to give to charity as a high-income RSU holder.
What withholding rate does my employer use for RSU income?
Employers withhold federal tax on RSU income at the IRS supplemental wage withholding rate. For the first $1 million in supplemental wages, that rate is 22%.
For amounts above $1 million in a calendar year, it rises to 37%. If your combined income puts you in the 32% or 37% bracket, you will owe more than was withheld and need to make up the difference through an adjusted W-4 or quarterly estimated payments.
Does the US-India DTAA apply to RSU income and capital gains?
RSU income at vesting is employment income, taxed in the US where the work was performed. Capital gains from selling RSU shares are also primarily taxed in the US under the treaty.
However, if you repatriate proceeds to India and India imposes tax, you can claim a Foreign Tax Credit using Form 1116 to offset the Indian tax against your US tax liability. For a full explanation of how the treaty reduces double taxation on cross-border income, read our guide on DTAA and how it works for NRIs.