Most travellers lose money on foreign exchange twice: once by exchanging at the wrong time, and again by exchanging at the wrong place. On a family trip budget of a few lakhs, sloppy forex easily costs ₹5,000–10,000 for nothing. Here is the short, practical guide we give our own customers in Mumbai.

When to Exchange

  • 2–3 weeks before travel is the sensible window. Rates move daily, but the airport premium you avoid by planning ahead is far larger than any rate movement you might time.
  • Never at the airport. Airport counters in India and abroad run margins of 5–8% over the market rate — the single most expensive place on earth to exchange money.
  • Split your exchange if the amount is large: convert half when you book, half a week before departure. You average out the rate instead of betting on one day.

Where to Exchange

In India, only exchange with an RBI-authorised dealer — you get a proper receipt, a legal rate, and currency that will not turn out counterfeit at the other end. Authorised money changers typically beat bank branch rates by 1–2%, and both beat the airport by a mile. In Mumbai, we offer doorstep delivery of 20+ currencies, so comparison is one WhatsApp message away.

How Much Cash to Carry

  • Cash for 30–40% of your spending — taxis, street food, tips, small shops, and any place where cards fail
  • A forex card for the rest — loaded once at a locked-in rate, safer than carrying notes, and far cheaper than swiping your Indian debit or credit card abroad (which adds 3–5% in markup and fees per transaction)
  • Carry small denominations for your arrival day — a taxi driver in any country struggles to change a large note
Rule of thumb: for the UAE and Southeast Asia carry a little more cash (cash cultures); for Europe, the UK and Singapore lean on the forex card (card cultures). Saudi Arabia for Umrah: carry enough Riyal cash for daily needs — many small vendors near the Haram are cash-only.

The Paperwork (Quick Version)

For amounts above small limits you will need your PAN card, passport, visa and ticket — standard RBI compliance, and any legitimate dealer will ask. Under the Liberalised Remittance Scheme, individuals can remit up to USD 250,000 per financial year; leisure travel falls comfortably inside it. Keep your exchange receipts: you need them to reconvert leftover currency at a good rate when you return.

Coming Home With Leftover Currency

Reconvert within 180 days with your original receipt for the best treatment. Better still: if you travel even once a year, hold on to universal currencies like US dollars or the destination currency you will reuse, and reconvert only the exotic ones.

The One-Minute Summary

  • Exchange 2–3 weeks early, never at the airport
  • RBI-authorised dealer > bank branch > airport, always
  • 30–40% cash, the rest on a forex card; small notes for day one
  • Carry PAN + passport for compliance; keep every receipt