All three mega banks have paid the same 0.30% ordinary savings rate since February 2, 2026, so the choice comes down to fit. MUFG serves five languages and U.S.-bound movers, SMBC’s Olive stacks 20% back at partner merchants with credit-card investing up to 6%, and Mizuho suits Rakuten users and new full-time employees. Pairing two banks covers what one lacks. VS SERIES FINALE | Japan’s Three Mega Banks Compared FINAL CHAPTER / Series Finale Japan’s 3 Mega Banks Compared MUFG SMBC Mizuho Which Is Right for You? Drawing on 100+ authoritative sources and the latest data, we compare all three mega banks across 8 dimensions. Whether you’re a student, a foreign full-time employee, a Rakuten ecosystem user, an SBI Securities devotee, or planning a move to the U.S., you’ll find the bank that fits you best — plus the strongest “two-bank combo” strategy. Includes a hands-on look at

Mizuho is the only megabank wired directly into the Rakuten ecosystem: the group holds 14.99% of Rakuten Card and 49% of Rakuten Securities. Its Mizuho Rakuten Card stacks 1% Rakuten and 1% Mizuho points for the first 12 months, capped at 10,000P. After the Feb–Mar 2026 Mileage Club reform, one card use per month clears the single S Stage. 03 SERIES | Japan’s Three Megabanks PART 03 / 03 + final comparison Mizuho Bank (みずほ銀行) A Foreigner’s Complete Guide The megabank with the deepest tie-up with Rakuten. Mizuho Rakuten Card W-Point Plan stacks 1% Rakuten + 1% Mizuho for an effective 2% cashback (first year, capped at 10,000P). Tight integration with Rakuten Securities. 6,800+ Aeon Bank ATMs treated as Mizuho’s own. Purpose-built for residents who already live inside the Rakuten ecosystem. 24M+ retail accounts 310+ branches 6,800+ Aeon ATMs 2% W-Point cashback* 📌 One-minute summary Mizuho Bank is

SMBC’s Olive account opens in about 70 minutes through the app with only a Residence Card, and foreign residents can finish it without visiting a branch. One Flexible Pay card covers cash, credit, debit and V Point payment, with rewards stacking to a 20% cap at eligible merchants. Credit-card investing at SBI Securities earns up to 4% (Platinum Preferred), plus an Olive-only bonus of up to 0.5% (added May 2026). 02 SERIES | Japan’s Three Megabanks PART 02 / 03 + Finale SMBC (Sumitomo Mitsui) + Olive A Foreigner’s Guide SMBC is the most aggressive megabank on digital. The 4-in-1 Olive Flexible Pay card, up to 20% reward stacking, deep SBI Securities synergy, and same-day app account opening make Olive the modern foreigner’s best default for a Japanese main bank. 70min fastest open 20% max reward 533+ branches 4-in-1 card modes 📌 One-minute summary SMBC + Olive is

MUFG supports five languages online and at the counter, but foreign residents must open in branch — the smart app is off-limits. It is the only megabank offering a U.S. bank account referral you can apply for before leaving Japan, launched July 20, 2023. Pair it with the MUFG Platinum Amex (¥22,000/yr) for up to 20% reward at eligible merchants. 01 SERIES | Japan’s Three Megabanks PART 01 / 03 + comparison finale MUFG (Mitsubishi UFJ Bank) A Foreigner’s Guide Japan’s largest financial empire — and one of the most foreigner-friendly megabanks. From opening your account to power-user tactics, here’s why MUFG is the default main bank for most expats in Japan. 5 languages 350+ domestic branches 40+ countries 20% max reward 📌 TL;DR — One-Minute Summary MUFG (Mitsubishi UFJ Bank) is Japan’s largest megabank by market cap. For foreign residents, four things stand out: Foreigner-friendly — 5