Opening a business bank account in Tokyo is one of the first operational tasks every entrepreneur faces after incorporation. The process is more involved than in many Western countries — Japanese banks are thorough, documentation requirements are specific, and some institutions remain cautious about foreign-affiliated businesses. But the right bank can make a material difference in how smoothly you operate, how quickly you move money, and what credit products become available as your business grows. Here is a practical breakdown of the best banks in Tokyo for business owners.
MUFG (Mitsubishi UFJ Financial Group)
MUFG is Japan largest bank by assets and among the most internationally accessible for foreign business owners. Its business banking division offers yen accounts, multi-currency accounts, trade finance, and credit facilities. MUFG has English-language support through select branches and its digital banking interface is more sophisticated than many domestic competitors.
For businesses engaged in international trade or with foreign shareholders, MUFG is often the recommended starting point. The bank has correspondent relationships globally, wire transfers are reliable, and its trade finance products are well-regarded. Setup requires Articles of Incorporation, corporate seal (hanko), representative director identification, and a completed business questionnaire. Expect a two-to-four-week review process.
MUFG also offers dedicated startup account programs in partnership with Tokyo-based accelerators. If your company was incorporated through a supported pathway — such as JETRO or the Tokyo One-Stop Center — you may qualify for streamlined onboarding.
SMBC (Sumitomo Mitsui Banking Corporation)
SMBC is the second-largest bank in Japan and is particularly well-regarded among SMEs for its loan products and business advisory services. Its branch network across Tokyo is extensive, and its corporate banking division is responsive to mid-size companies with clear revenue history.
SMBC offers a range of business checking accounts, overdraft facilities, and term loans tailored to small businesses. Its online banking platform has improved significantly in recent years and supports batch transfers, payroll processing, and basic treasury management for businesses that need more than a simple deposit account.
For foreign-affiliated companies, SMBC can be more conservative than MUFG during initial onboarding, but once a relationship is established, it is considered among the more proactive banks for introducing financing products to growing businesses. Relationship management is a core part of how Japanese banks operate — loyalty and consistency are rewarded over time.
Mizuho Bank
Mizuho rounds out the three megabanks and is especially strong for businesses with connections to the manufacturing, technology, and media sectors. Mizuho has historically supported innovation-driven companies and maintains relationships with major venture capital firms active in Tokyo.
For startups, Mizuho runs the Mizuho Innovation Portal, which connects early-stage companies to corporate partners and provides priority banking introductions. If you are building a technology or product company in Tokyo, Mizuho is worth exploring beyond just a deposit account — its ecosystem connections can create business development opportunities alongside basic banking services.
Mizuho business accounts require similar documentation to other megabanks and the review timeline is comparable. English-language support is available at its Shinjuku and Marunouchi business centers.
Resona Bank
Resona is often overlooked by foreign entrepreneurs but it is one of the most SME-friendly banks in Tokyo. Unlike the three megabanks, Resona focuses almost exclusively on retail and small business banking rather than corporate and investment banking. This focus translates into more attentive relationship managers, faster loan decisions, and a less bureaucratic account setup experience for qualifying businesses.
Resona is particularly active in the Kanto region (which includes Tokyo) and has branch density in neighborhoods where small businesses are concentrated, including Shibuya, Ikebukuro, and Shinjuku. Its business loan products are competitive, and the bank participates in the Credit Guarantee Corporation network, which is important for businesses seeking government-backed loan guarantees through the Tokyo Credit Guarantee Association.
For sole proprietors and small incorporated businesses with less than 20 million yen in annual revenue, Resona is frequently recommended by local accountants as the most accessible starting point for business banking in Tokyo.
Japan Post Bank (Yucho Bank)
Japan Post Bank is the most widely distributed financial institution in Japan, with branches inside every post office. For business owners in Tokyo, Yucho Bank offers an extremely low-cost account option with nationwide ATM access and reliable domestic transfer capabilities.
The limitations are real: Yucho Bank does not offer traditional business loans, international wire transfers are more complex, and the account features are basic compared to commercial banks. However, for businesses that primarily operate in yen, receive domestic payments, and want a low-friction secondary account for vendor payments or payroll, Japan Post Bank is a practical and affordable option that should not be dismissed entirely.
Many Tokyo business owners use Japan Post Bank as a secondary account alongside a primary MUFG or Resona account — separating operational cash from business reserves.
Business Account Setup: What You Need
Regardless of which bank you choose, the documentation requirements in Japan are fairly consistent. You will need your Certificate of Registered Matters (登記事項証明書) from the Legal Affairs Bureau, your corporate seal (代表者印) and seal registration certificate, the representative director passport or residence card, proof of business address (lease agreement or utility bill), and a completed business questionnaire describing your company activities, expected transaction volumes, and counterparty countries.
Some banks now accept English-language documents or provide bilingual forms. The Tokyo branches of MUFG and Mizuho in major business districts are most likely to accommodate English-speaking founders directly. For complex situations — foreign shareholders, offshore holding structures, or businesses in regulated industries — engaging a local accountant or business formation consultant before approaching the bank significantly improves approval odds.
Building the right financial foundation connects directly to the broader opportunity in Tokyo. Understanding small business funding options in Tokyo alongside your banking setup will give you a clearer picture of your full capital stack. And connecting with tax and financial professionals in Tokyo early ensures your account structure is optimized before you start moving serious money.
Choosing the Right Banking Partner
The best bank for your Tokyo business depends on your stage, your industry, and how internationally connected your operations are. Early-stage foreign founders often start with MUFG or JETRO-facilitated introductions. SMEs with local operations and domestic revenue tend to thrive with Resona or SMBC. Startups in innovation sectors should explore what Mizuho innovation programs offer beyond basic banking.
Whatever you choose, treat your banking relationship as a long-term partnership. Japanese banks reward consistent clients with better loan terms, faster decisions, and access to introduction networks that are genuinely valuable for growing businesses in this market.
Get Connected to Tokyo Business Resources
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