Key Points
Sumitomo Mitsui SBI Net Bank offers up to 12,000 yen cash bonus for new WealthNavi accounts.
Campaign runs June 19 to September 18, 2026, targeting 2,250 new customers.
Customers must transfer 100,000 yen from another bank and set up automatic monthly investments.
Additional 7,000 yen bonus requires opening a NISA tax-free investment account with tax office approval.
Sumitomo Mitsui SBI Net Bank announced a new account opening campaign for its WealthNavi robo-advisor platform starting June 19, 2026. The bank offers up to 12,000 yen in cash incentives to new customers who meet specific conditions. The campaign targets 2,250 new accounts and runs through September 18, 2026, signaling the bank’s push to grow its automated investment services.
Campaign Structure and Eligibility
The campaign offers two tiers of cash rewards. New customers who open a WealthNavi account and meet basic conditions receive 5,000 yen. Those who also open a NISA tax-free investment account receive an additional 7,000 yen, totaling 12,000 yen maximum. The bank announced the campaign details on its official website.
Key Requirements for Rewards
Customers must transfer at least 100,000 yen from another bank into their main account during the campaign period. They must also deposit at least 10,000 yen into their WealthNavi account and set up automatic monthly contributions. Participants must keep their automatic investment settings active and avoid any withdrawals through October 31, 2026.
NISA Account Bonus Terms
The additional 7,000 yen bonus requires opening a NISA tax-free investment account within the campaign window. Tax office approval takes at least two weeks, so the bank urges customers to apply early. Customers who already use NISA at another institution should wait until October to switch, as the bank requires the tax authority to complete the transfer process by October 31.
Market Context and Timing
The campaign arrives as Japanese banks face pressure to attract retail investors to wealth management services. On June 19, the Bank of Japan raised its policy rate to 1.0 percent, prompting regional banks like Ryukyu Bank to raise deposit rates to 0.4 percent. Sumitomo Mitsui’s incentive-driven approach targets customers seeking higher returns through automated investing rather than traditional savings.
Final Thoughts
Sumitomo Mitsui SBI Net Bank’s 12,000 yen campaign reflects competitive pressure in Japan’s retail investment market. The incentives target customers willing to commit to long-term automated investing, signaling the bank’s focus on growing its robo-advisor assets.
FAQs
You can earn up to 12,000 yen: 5,000 yen for opening a WealthNavi account, plus 7,000 yen additional if you also open a NISA tax-free account.
The campaign runs from June 19 to September 18, 2026, or until 2,250 new accounts open, whichever comes first.
Withdrawals before October 31, 2026 disqualify you from the 7,000 yen NISA bonus. You forfeit this additional reward entirely.
Disclaimer:
The content shared by Meyka AI PTY LTD is solely for research and informational purposes. Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.
About Author

Huzaifa Zahoor
Co FounderHuzaifa Zahoor is the engineer who built Meyka. He has spent years writing Python, training AI models, and building data pipelines specifically for financial markets. His technical articles have reached over 30,000 readers on Medium, so he knows how to make complex things easy to follow. If this article touches on how the tools work, he is the person who actually built them.
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