MUFG and other major Japanese banks will raise ordinary deposit rates to 0.5%.
This marks an increase from the previous 0.4% rate.
The adjustment follows the Bank of Japan's decision to increase its policy rate to 1.25%.
The new rates take effect on November 2nd.
This level represents the highest interest rate in approximately 34 years.
MUFG Bank also increased its short-term prime rate to 2.625%.
This reflects a 0.25 percentage point increase in the benchmark.
The rate serves as the primary indicator for variable-rate mortgages.
Borrowers are likely to face higher repayment costs as a result.
The move signals a significant shift in Japan's long-standing low-interest-rate environment.