NRIWallah team
Updated October 2026 · 3 min read
Why a rupee FD calculator is not enough
Bank calculators answer one question: how many rupees will my deposit grow to? The money an NRI puts into an Indian FD often starts as pounds, dollars or dirhams and may need to be spent in that currency again. What counts is the maturity value converted back into your own currency, after tax.
This calculator invests the same lump sum on both sides, in an Indian FD and in a savings or term deposit in your country of residence. It shows each maturity in its own currency and then side by side in the currency you choose.
A higher rate is not the whole comparison
An Indian FD paying more than a UK or Gulf deposit looks like the winner. The Indian FD is in rupees, though, and if the rupee weakens over the term, the extra interest can be cancelled out when you convert back. Compare the rates on the day with the FD rate comparison.
The calculator shows an exchange-rate cushion: how far the rupee can fall before the higher Indian rate stops paying off. A large cushion makes the Indian FD a sound choice. A thin one means you are making a currency bet.
Tax can change the answer
Interest on an NRE or FCNR deposit is tax-free in India, but your country of residence decides the rest. A resident of the UK, US, Canada or Australia usually owes tax at home on that interest as part of worldwide income, which cuts the real return. A resident of the UAE or another Gulf state pays no personal income tax, so the Indian FD keeps its full advantage.
Enter your marginal tax rate in the optional field to see your net position. The country tax calculators show how the interest fits into your total tax, and the home loan calculator applies the same two-currency logic to borrowing.
How to use it
Enter the amount, choose whether it starts in rupees or your foreign currency, set the term and adjust each side’s rate to match a real offer. Add your tax rate if your home country taxes the interest.
Then read three numbers: which side has the higher maturity in your chosen currency, the size of the exchange-rate cushion, and what the Indian maturity would be worth abroad if the rupee moved.
NRIWallah does not provide financial or tax advice. This calculator converts future rupee values at today’s exchange rate and assumes a fixed rate for the full term. Confirm every figure with your bank and a qualified adviser before investing.
