Forex Card vs International Debit Card in 2026: A Head-to-Head on Markup, ATM Fees and the 20% TCS Trigger
By Arjun Kapoor (Arjun Kapoor breaks down travel money, cards and the fine print that quietly drains Indian travellers' wallets.) · Published · 10 min read
On paper a forex card and your bank debit card do the same job abroad, but the fee structures are completely different — and one of them can quietly cost you 3 to 5 percent more on a two-week trip. Here's the honest head-to-head, including the often-missed TCS and cross-currency traps.
The four fees that actually decide the winner
Forget the marketing. Whether a forex card or an international debit card loses you less money comes down to four numbers: the FX markup (the spread over the interbank rate), the cross-currency / forex conversion charge, the ATM withdrawal fee, and any load/reload or annual fees. A card can have a great headline on one and quietly clobber you on another.
A typical Indian bank debit card used abroad commonly carries a forex markup in the region of 3–3.5% plus GST, and a flat foreign-ATM withdrawal fee on top. A prepaid forex card, by contrast, locks the rate when you load it and often advertises markups anywhere from 0% (zero-markup cards) up to ~2%, with its own ATM fee per withdrawal. These are indicative ranges — verify the exact numbers on your specific card's schedule of charges, because they vary a lot by issuer.
The single biggest mistake is comparing only the markup. A zero-markup card with a high per-ATM fee and an inactivity charge can still lose to a modest-markup card if you withdraw cash frequently.
FX markup: where forex cards usually win
This is the forex card's home turf. Because you pre-load a foreign currency, you fix the exchange rate at load time and avoid the daily currency swings — useful if the rupee weakens during your trip. Zero-markup and low-markup forex cards can apply a spread close to the interbank rate, whereas most plain debit cards apply ~3–3.5% plus GST on every foreign transaction.
On a two-week trip spending, say, the equivalent of ₹1.5–2 lakh, a 3% difference in markup is roughly ₹4,500–6,000 — real money. That's the core reason seasoned travellers carry a forex card for the bulk of card spending and keep the debit card as backup, not the other way round.
One nuance: "zero markup" usually refers to the FX spread only. It does not mean zero total cost — reload, ATM and other fees still apply, and a poor interbank rate at load time can erode the benefit. Read the next sections before you crown a winner.
ATM withdrawals: the silent killer for both
Cash withdrawals abroad are where both cards bleed. Forex cards typically charge a flat fee per foreign ATM withdrawal (often a few hundred rupees equivalent in the local currency, indicative). Debit cards charge their own foreign-ATM fee, sometimes plus the markup. On top of that, the foreign bank's ATM may levy its own surcharge, and many ATMs push Dynamic Currency Conversion (DCC) — offering to bill you in INR at a terrible rate. Always choose to be charged in the local currency, never INR.
The practical implication: withdraw cash in fewer, larger amounts rather than many small ones, because the fee is usually per transaction. Three €200 withdrawals beat six €100 ones. If a card has a higher per-ATM fee but lower markup, it suits a card-heavy trip; the reverse suits a cash-heavy one.
For cash-heavy destinations (much of Southeast Asia, parts of the Gulf souks), model your expected number of withdrawals before choosing — this single behaviour often decides the cheaper card more than the markup does.
The cross-currency trap nobody warns you about
Here's a subtle one. A forex card loaded in USD but used in, say, Thailand (THB) or Vietnam triggers a cross-currency conversion charge — often around 2–3.5% — because the card converts USD to the local currency on the fly. The "zero markup" you paid for evaporates if your card's loaded currency doesn't match where you're spending.
The fix is to load the right currency. Most forex cards are multi-currency: load EUR for Europe, GBP for the UK, USD for the US, AED for the UAE, and so on. For exotic currencies the card doesn't support, you'll always eat a cross-currency fee — in those places, sometimes a good debit card or local cash is actually cheaper. Debit cards have no "loaded currency", so they convert directly, sidestepping this particular trap (though their base markup is higher).
Bottom line: match your forex card's wallet to your destinations. If you're visiting three currency zones, load all three rather than assuming USD covers everything.
The 20% TCS trigger and how loading order matters
Under the Liberalised Remittance Scheme rules in force in 2026, Tax Collected at Source (TCS) applies to overseas spending. The key threshold most travellers hit: loading a forex card / forex purchase counts as foreign remittance, and beyond an aggregate of ₹7 lakh per individual per financial year, TCS of 20% applies (a lower 5% slab applies specifically to overseas education/medical above the threshold). Below ₹7 lakh in a year, no TCS on the forex-card load.
Crucially, spending on an international debit card abroad also counts toward this ₹7 lakh LRS aggregate in the current framework — so you can't dodge TCS just by switching to a debit card. The TCS is not a tax you lose; it's adjustable against your income tax / refundable when you file your return. But it's a cash-flow hit at the time of loading, so plan for it.
The practical takeaway for a normal two-week trip well under ₹7 lakh: TCS usually isn't triggered at all, so it shouldn't drive your card choice. If your annual overseas spend is large, read our full LRS explainer on the blog and split loads across family PANs legally rather than overthinking the card. Rules change — confirm the current TCS rate and threshold on the income-tax/RBI site before a big load.
Verdict for a typical 2-week trip
For a normal leisure trip where you're spending well under ₹7 lakh and mixing card payments with some cash, the forex card is usually the cheaper primary tool: lower FX markup, a locked rate, and clean budgeting. Carry your international debit card as backup for emergencies, deposits/holds (hotels, car rentals) and any place the forex card is declined.
The debit card pulls ahead in two specific cases: (1) you're visiting an exotic-currency destination your forex card doesn't support natively, where the cross-currency fee would wipe out the markup advantage, and (2) very short, low-spend trips where forex-card load/reload and inactivity fees aren't worth it. In both, a no-foreign-fee debit/credit product can beat a forex card.
Net: forex card for the bulk of spending in supported currencies, debit card as the safety net. And on a sub-₹7-lakh trip, don't let TCS fears push you into a worse-value card — it likely won't apply.
Frequently asked questions
Is a forex card cheaper than a debit card for international travel?
For most leisure trips, yes. Forex cards typically apply a lower FX markup (0–2% on zero/low-markup cards) versus roughly 3–3.5% plus GST on a standard debit card, and they lock the rate at load time. Debit cards can win only for unsupported exotic currencies or very short, low-spend trips. Verify exact fees on your card's schedule.
Does using an international debit card avoid the 20% TCS?
No. Under the LRS framework in 2026, international debit-card spending abroad counts toward the same ₹7 lakh per-person-per-year aggregate as forex-card loads, so 20% TCS applies beyond the threshold regardless of which you use. TCS is adjustable/refundable against your income tax. Confirm the current rate on the income-tax/RBI site.
What is the cross-currency charge on a forex card?
It's a fee (often ~2–3.5%) applied when you spend in a currency different from the one loaded on the card — for example using a USD-loaded card in Thai baht. To avoid it, load the matching currency for each destination. Multi-currency forex cards let you hold several currencies at once.
How can I minimise ATM fees abroad?
Withdraw cash in fewer, larger amounts since fees are usually charged per transaction, and always choose to be billed in the local currency, not INR, to dodge Dynamic Currency Conversion. Check whether your card's per-withdrawal fee or its FX markup dominates for your trip's cash needs.
Should I carry both a forex card and a debit card?
Yes. The recommended setup is a forex card for the bulk of spending in supported currencies and an international debit (or credit) card as backup for emergencies, hotel/car holds and places the forex card is declined. Relying on a single card is the most common avoidable mistake.
Does the ₹7 lakh TCS threshold reset every year?
Yes, it's per individual per financial year (April–March in India). Forex-card loads and overseas card spends aggregate toward it within the year and reset at the start of the next financial year. Splitting legitimately across family members' PANs is one legal way to manage it — see our LRS guide for the details.