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Calculators that don't stop at the border.
There are hundreds of SIP and FD calculators. Every one of them answers for a person who files in a single country. If you file in two, the answer is different — and usually smaller.
Indian SIP, after US tax
Your broker's calculator stops at the corpus. This carries on: the last twelve instalments are still short-term in India, the rupee is part of your US gain, and the US taxes the lot on top.
Open the calculator →NRE vs NRO, after both countries
NRE interest is exempt under §10(4)(ii) — in India. A US person is taxed on worldwide income, so it is ordinary income on your 1040 anyway. Both accounts, side by side.
Open the calculator →The $0 cost-basis trap
The vest-day value is already on your W-2 and it is also your basis. Brokers routinely report $0 — this prices exactly how much that mistake costs.
Open the calculator →US + India + the DTAA credit
One sale, both tax systems, and the treaty credit that stops you paying twice — plus what waiting for the long-term line would save.
Open the calculator →More ways the border changes the answer
Each of these is here for the same reason as the four above: the cross-border answer is genuinely different from the single-country one. The ones where it isn't — HRA, gratuity, plain compound interest — are deliberately absent rather than padding the list.
Lumpsum into an Indian fund
One purchase instead of many, so it is long-term or it is not — no partial split. Same two tax systems, same currency drag on the dollar gain.
Open the calculator →Recurring buy into a US ETF
The mirror of the SIP: India does not tax it, it is not a PFIC, and a weakening rupee makes the corpus worth MORE in rupees instead of less.
Open the calculator →Drawing an income out of a fund
Each withdrawal is a redemption, not a salary — and the ₹1.25L §112A exemption renews every financial year, so spreading a drawdown claims it repeatedly.
Open the calculator →India's tax-free retirement pots
Exempt in India at every stage, and not exempt in the US at any of them. Both live readings of the US timing are priced, because the question is genuinely open.
Open the calculator →Where the numbers come from
The same tested engines the product runs — US federal brackets and NIIT, India's §111A/§112A, §195 withholding, and the DTAA foreign-tax credit — with the tax rules stored as dated data so a figure resolves against the law in force on the date it applies to. Every calculator names its assumptions and says what it does not model. They are estimates, not advice and not a filing.