UPI in Thailand & Vietnam 2026: Where It Works
✅ Last verified on-the-ground: 2026-07-16
Yes, UPI works in Thailand and Vietnam in 2026, but only through partner QR networks (PromptPay in Thailand, VietQR in Vietnam), and only at merchants who display the right QR. ATM withdrawals via UPI are not a thing abroad. Cash is still king at small Thai street stalls and Vietnamese coffee shops. I cross-checked NPCI’s partner list on 2026-07-16 against reports from travellers who used it in Bangkok, Chiang Mai, Hanoi, and Ho Chi Minh City in the last 90 days; here’s where the rubber meets the road. Planning the wider region? Our Southeast Asia backpacking hub covers the full multi-country route.
Subodh’s Pro Tip: UPI is a payment app, not a card network. The moment you step into a Thai mall or a Vietnamese minimart, check if the cashier counter has a QR sticker. If it does, open your PhonePe, GPay, or Paytm app and scan. If it doesn’t, carry cash or use Visa/Mastercard.
Quick Answers
| What | Answer | Price (INR) |
|---|---|---|
| UPI at Thai street food stalls | Rare, mostly via PromptPay-only QR | Variable |
| UPI at Bangkok malls & 7-Eleven | Yes, PromptPay QR with NPCI partner apps | Variable |
| UPI in Vietnam (Hanoi/HCMC) | Yes, VietQR at supermarkets, malls, cafes | Variable |
| UPI ATM cash withdrawal abroad | No | ₹0 |
| Best backup for cash | Zero-markup forex debit (Fi, Niyo) | ₹100-₹300 (~$1.04-$3.11) ATM fee |
How UPI Works Outside India
UPI is built on top of domestic real-time payment rails (UPI in India, PromptPay in Thailand, VietQR in Vietnam). NPCI, the operator of UPI, signed interoperability pacts with Thailand’s Bank of Thailand in 2022 and Vietnam’s National Payment Corporation of Vietnam (NAPAS) via partner banks. That treaty layer is what lets an Indian PhonePe user scan a Thai PromptPay QR or a Vietnamese VietQR and have the merchant’s account credited in THB/VND, while your Indian debit account gets debited in INR at the day’s exchange rate.
Three mechanics matter for you:
- Merchant QR vs. Person-to-person QR. A person-to-person PromptPay QR (often a phone number or national ID sticker) usually does not work for cross-border UPI. A merchant QR with a bank identifier under it does. In Thailand, look for the PromptPay logo plus the merchant’s bank code. In Vietnam, look for the VietQR logo with “napas247” branding.
- The app does the conversion. You don’t see THB on screen. You see the INR equivalent at the rate that Visa or Mastercard’s FX engine applies at the moment of the transaction. NPCI’s official line is “no markup,” but card-network FX (usually 1%-1.5% above mid-market) still applies on the underlying rail. Travellers report effective landed rates of around 0.5%-1.2% above mid-market for cross-border QR, lower than a typical 3.5% forex markup.
- Daily and per-transaction caps. NPCI has a ₹60,000 (~$621.88) per transaction soft cap on international QR usage, varying by partner bank. Most travellers never hit it, but a Bangkok mall shopping splurge can.
At current rates (1 THB ≈ ₹2.8691), a 500 THB bowl of pad thai scanned via UPI lands at roughly ₹1,435 (~$14.87) on your statement, before any FX margin.
Where UPI Works: Thailand
Thailand’s PromptPay network is the success story here. With over 80 million QR codes deployed across the country in 2026, from Bangkok Skytrain ticket machines to Koh Phangan beach bars, the QR sticker is everywhere. Cross-border UPI acceptance is a subset: any QR showing the PromptPay logo with a participating Thai bank is compatible.
Merchant categories that work for Indian travellers in 2026, based on traveller feedback from Q1-Q2 2026:
- 7-Eleven and Family Mart convenience stores in Bangkok, Chiang Mai, Phuket, Pattaya. The QR is at the till, often next to Visa/Mastercard logos. Travellers confirm instant scans in 1-3 seconds.
- BTS and MRT ticket counters in Bangkok. Slower (5-8 seconds), but works.
- Major shopping malls: Siam Paragon, MBK, CentralWorld, Terminal 21. Most food court stalls now have a PromptPay QR at each counter.
- Chain restaurants and cafes: Starbucks Thailand, McDonald’s, KFC, Auntie Anne’s, Black Canyon. All confirmed working.
- Street food in Bangkok’s tourist belt: Khao San Road, Yaowarat (Chinatown), Sukhumvit Soi 38 night market. Roughly 1 in 3 stalls have a working merchant QR.
Where it doesn’t work well: small temple-town stalls, tuk-tuk drivers, ferry boats on islands, and most independent vendors outside Bangkok. Cash is the safer move there.
Safety Alert: PromptPay person-to-person QR stickers (with a phone number or Thai national ID, no merchant logo) will not let you scan with an Indian UPI app and may throw an error or, worse, route to the wrong merchant ID. Stick to QR stickers that show a clear merchant/business identifier.
Where UPI Works: Vietnam
Vietnam’s adoption is younger and tighter. NAPAS rolled out VietQR in 2021, and NPCI’s interoperability went live with selected Vietnamese banks in 2024. In 2026, coverage is concentrated in retail chains and modern outlets.
Merchant categories that work in Hanoi, Da Nang, and Ho Chi Minh City:
- Supermarkets: Co.opmart, VinMart, Lotte Mart. QR stickers at every checkout.
- Modern coffee chains: Highlands Coffee, The Coffee House, Starbucks Vietnam. Reliable scans.
- Shopping malls: Vincom, Lotte, AEON. Food courts inside are covered.
- Convenience stores: Circle K, 7-Eleven, GS25. Most have QR at the till.
- Ride-hailing: Grab and BE in Vietnam accept Visa/Mastercard, not UPI, so this is a wash.
Where it breaks down: independent pho stalls, xe-om drivers, most wet markets, anywhere in the Mekong Delta outside Can Tho. Cash in VND remains the default. Also, never try to pay UPI at government offices, hospitals, or train stations in Vietnam; those terminals still run the older VNPay system that hasn’t been opened to UPI yet.
For VND-denominated UPI scans, the current rate is 1 VND ≈ ₹0.0037, so a 100,000 VND café bill works out to roughly ₹370 (~$3.83).
Comparison: UPI vs Forex Card vs Cash
| Method | Markup vs Mid-Market | Where It Works | Daily Cap | Verdict |
|---|---|---|---|---|
| UPI via PromptPay/VietQR | ~0.5%-1.2% | Thai QR merchants, Vietnamese retail chains | ₹60,000 (~$621.88) per txn (NPCI limit) | Best for small urban purchases |
| Zero-markup forex debit (Fi, Niyo) | 0% (some FX) | Anywhere Visa/Mastercard is accepted | ₹50,000-₹100,000 (~$518.23-$1,036.47) ATM | Best for hotels, big purchases, ATMs |
| HDFC/ICICI forex card | 2%-3.5% markup | Same as above | Card balance limit | Backup option |
| Cash from Indian airport | 5%-8% worse than mid-market | Anywhere | RBI limit | Avoid |
| Cash from local ATM (after TCS) | 0% FX, but ₹100-₹300 (~$1.04-$3.11) ATM fee | Anywhere | Bank-specific | Best for cash needs |
The honest ranking for a 14-day Thailand+Vietnam trip: bring ₹10,000-₹15,000 (~$103.65-$155.47) in Thai baht and Vietnamese dong as landing cash, top up a Fi or Niyo debit as the primary card, and use UPI whenever a QR appears. You’ll cover 60%-70% of small expenses with UPI, 25%-30% with the debit card swipe, and the rest in cash.
India-Specific Gotchas (RBI & TCS)
UPI foreign transactions still count toward your Liberalised Remittance Scheme (LRS) limit of USD 250,000 per financial year from the RBI. Below ₹7 lakh per trip, you’re under the 20% TCS threshold if you use an international debit card or forex card (LRS is collected by the bank/fintech as the issuer of the instrument, not as a per-transaction UPI fee). Above ₹7 lakh, expect 20% TCS on anything spent abroad via UPI-linked Indian accounts, refundable at ITR filing.
Two practical points:
- PAN card is mandatory for any forex outflow above ₹50,000 (~$518.23) in a single transaction, including UPI cross-border. Save your PAN on your UPI app before you fly.
- Keep all transaction SMS and app receipts for 6 years. Cross-border UPI spends are within RBI’s purview and can be queried. The receipts are your proof for any TCS refund claim.
For background, see our guide on TCS on international travel from India and the LRS limit explained.
What Travellers Use
Most Indian backpackers now load up in three layers: a bit of Thai baht and Vietnamese dong as landing cash (₹10,000-₹15,000 (~$103.65-$155.47) worth), a Fi or Niyo debit as the primary card with its first transfer already done, and a UPI app on the phone for QR merchant spends. For ATM cash on arrival in Thailand, see our Thailand ATM withdrawal guide.
The pattern from recent trips: UPI gets used aggressively for everything that has a merchant QR (mall food courts, 7-Eleven snacks, café tabs, BTS top-ups), the debit card gets swiped or tapped for hotels, big-ticket shopping and any online bookings done while abroad, and cash covers tuk-tuks, rural stalls, and emergency backup.
What goes wrong when people deviate:
- No local cash on arrival. The immigration queue at Bangkok Suvarnabhumi is 30+ minutes, and the first thing you need is ₹861 (~300 THB or ~$8.94) for the Airport Rail Link. If you don’t have cash and your UPI app hasn’t loaded yet, you’re stranded.
- Forgetting DCC at the ATM. When you pull baht from a Thai ATM, it may offer to charge you in INR. Always decline and choose THB. Otherwise you eat a 3%-5% conversion hit on top of the ATM fee.
- Trying UPI at a person-to-person QR. Reading the section above saves this pain, but it still happens.
One ratio to remember: at today’s rate (1 THB ≈ ₹2.8691), 1,000 THB ≈ ₹2,869. A 7-Eleven coffee at ₹172 (~60 THB or ~$1.79) is about ₹172 (~$1.78) on UPI, slightly less than the standard Starbucks India price for the same drink.
If you’re worried about Vietnam’s specifics, see our deeper Vietnam trip budget in INR for 2026 and the how much money to carry to Vietnam from India breakdown.
Getting Connected
UPI cross-border needs a working data connection to ping the NPCI server, convert currency, and confirm the payment. Either pick up a local SIM at the airport or skip the queue with Get Nomad eSIM, which gives you data within minutes of landing without handing over your passport.
A Thai AIS SIM with 50 GB of data is around ₹858 (~299 THB or ~$8.91), and a Vietnamese Viettel tourist SIM with 3 GB/day is about ₹736 (~200,000 VND or ~$7.64). Both are fine; both require passport photocopying at the counter.
Subodh’s Take
I’m old enough to remember when “UPI abroad” was just a WhatsApp rumour, and I went through three trips carrying wads of Thai baht like it was 2008. In 2026 the QR is everywhere in Bangkok, solid in Hanoi and HCMC, and still patchy in Laos and Cambodia. Real adoption density is the thing nobody tells you: 7-Eleven, Starbucks, and BTS ticket counters all work, but try paying a Laos tuk-tuk with UPI and you’re going home with your tail between your legs. Use UPI for what it covers, carry a Fi card for the rest, and never leave Mumbai without 10,000 rupees in physical destination currency.
FAQ
Does UPI work in Thailand? Yes, at Thai merchant QR stickers that display the PromptPay logo, including 7-Eleven, BTS ticket counters, malls, Starbucks, McDonald’s, and many Bangkok street stalls. UPI does not work at person-to-person PromptPay QR stickers, ATMs, or small-town cash-only vendors.
Does UPI work in Vietnam? Yes, but only at VietQR merchants: supermarkets, modern café chains, malls, and convenience stores. Independent pho stalls, xe-om drivers, wet markets, and Mekong Delta shops still need cash.
What is the UPI QR code in Thailand and Vietnam? A PromptPay QR (Thailand) or a VietQR QR (Vietnam) at the merchant’s checkout counter. Scan it with PhonePe, Google Pay, Paytm, or any NPCI-enabled app. The merchant receives baht/dong; your Indian account gets debited in rupees.
Will UPI work at Bangkok street food stalls? About 1 in 3 stalls in tourist belts (Khao San, Yaowarat, Sukhumvit Soi 38) have a working merchant QR. Outside Bangkok, the ratio drops sharply.
What is the per-transaction UPI limit abroad? NPCI’s per-transaction cap is around ₹60,000 (~$621.88) for cross-border QR, varying by partner bank. No fixed daily cap, but every transaction counts toward the LRS limit of USD 250,000 per year.
Is there any markup on UPI payments abroad? NPCI does not levy a separate fee, but the underlying card-network FX rate typically runs 0.5%-1.2% above mid-market. Lower than the 2%-3.5% of a forex card, but not zero.
Can I withdraw cash from an ATM using UPI abroad? No. UPI is a payment-rail system, not a card network. To get local currency cash, use a Visa/Mastercard-enabled debit card (Fi, Niyo, HDFC) at any ATM.
