Thank you for using Mizuho Bank. We will be conducting IT system maintenance from Saturday, October 11, 2025, to Sunday, October 12, 2025.During the dates/times noted below, the services shown will be unavailable. We ask for your kind understanding and apologize for any inconvenience caused. The suspension schedule may vary by service. We sincerely apologize for any inconvenience this may cause and ask for your kind understanding.

During the service suspension, Mizuho Bank and Mizuho Trust Bank cash cards cannot be used at any ATMs, including those of Mizuho Bank and other financial institutions and convenience stores.
Transfers via Mizuho Direct will also be unavailable.
During the service suspension, services such as adding electronic money (e.g., to J-Coin Pay, Mizuho Suica or PayPay) from Mizuho Bank accounts will also be unavailable.
In addiction, transfers to Mizuho Bank and Mizuho Trust & Banking accounts: Transfers from other financial institutions during the suspension period may be credited to the account on or after Tuesday, October 14.
We ask that you make necessary preparations in advance, such as by using ATM or Mizuho Direct and by topping up your electronic money beforehand.
From 10:00 PM on Saturday, October 11, 2025
To 1:00 PM on Sunday, October 12, 2025"
Note: If there are any changes to the service suspension schedule, updates will be provided on the Mizuho Bank website and other channels.
Service Names
Details of Service Suspension
ATM Services
Note: Availability dates and times may vary depending on the branch or partner financial institution. Regarding Transfers at AEON Bank ATMs Transfers will be unavailable from 9:00 PM on Saturday, October 11, 2025, to 1:00 PM on Sunday, October 12, 2025.In addition, some ATMs of financial institutions other than Mizuho Bank and “VIEW ALTTE” machines will also be unavailable during this same period. Note: The lottery ticket sales service at Mizuho Bank ATMs will be suspended from 8:00 PM on Saturday, October 11, 2025, to 1:00 PM on Sunday, October 12, 2025.
Mizuho Direct (Online Banking) and Related Services
Mizuho Direct [Telephone Banking] (dial number: 0120-898-324)
Services that involve customer information verification, such as balance inquiries, transaction history inquiries, and account unlocking
Services provided through contact centers (0120-3242-86, 0120-3242-99, 0120-324-021, and other numbers for individual customers)
Services requiring customer information verification, such as identity verification
Note:
Support from live operators will be unavailable from 5:00 PM on Saturday, October 11, 2025, to 1:00 PM on Sunday, October 12, 2025.
Automated services that involve customer information verification, including balance inquiries, transaction history inquiries, and account unlocking
Pay-easy Direct Debit Service
Mizuho Mileage Club Card (Credit Card)
Details of
Notes:
However, credit card payments and other usage will remain available during the service suspension period.
Mizuho JCB Debit
Note: Card payments will remain available during the service suspension period.
Mizuho Account Opening & Procedures App
Online application services
Note: Unavailable starting from 9:55 PM on Saturday, October 11
Ask Mizuho (Oshiete Mizuho-san)
Mizuho Mileage Club and Mizuho Point
Services for investment trust account opening and for installment-type investment trusts
Life Design Navigation Service
Note: Services available without login can still be used.
The iDeCo Online Application System
The Transaction Purpose Confirmation Online Service
Note: Services will be suspended from around 9:30 PM on Saturday, October 11, 2025, to around 1:00 PM on Sunday, October 12, 2025.
Mizuho Wallet for Android / Mizuho Wallet for iOS
Customers will still be able to make payments, up to the amount of the account balance.
Customers will still be able to make payments using the already added balance on Mizuho Suica. Customers will also still be able to add funds at station ticket machines or ATMs.
Customers will still be able to make payments using the already added balance on J-Coin Pay.
Details of Service Suspension
J-Coin Pay
Aizu Coin
Nyan Pay
Everiwa Wallet
Yakult Pay
Bank Pay
Adding Funds on Various Payment Apps
Mizuho Debit Card Services (J-Debit)
Question
Answer
When will the system maintenance (service suspension) take place?
The scheduled maintenance period is from 10:00 PM on Saturday, October 11, 2025 to 1:00 PM on Sunday, October 12, 2025.
Similar system maintenance is also planned for multiple occasion in 2026. The specific schedule will be announced later on the Mizuho Bank website and other channels.
What is the purpose of the system maintenance planned for October 2025?
The system maintenance is necessary to meet the upcoming maintenance deadline for our core banking system, which handles essential banking operations such as deposits, loans, and fund transfers.
We apologize for any inconvenience this may cause and ask for your kind understanding and cooperation.
Which services will be suspended?
Nearly all services will be temporarily unavailable, including:
Will there be any changes to the products and services I currently use?
There will be no changes to the content of our products and services. You can continue using them as usual after the system maintenance is completed.
Can Mizuho JCB Debit (for individuals), Smart Debit (for individuals), and Mizuho Business Debit (for corporations and sole proprietors) still be used?
Yes, Mizuho JCB Debit, Smart Debit, and Mizuho Business Debit will remain available during the system maintenance period.
For more details, please refer to the "List of Suspended Services.
I use smartphone payment services (e.g., --○○Pay), charging adding funds from my Mizuho Bank account. What happens during the system maintenance?
During the system maintenance, you will not be able to add funds from your Mizuho Bank account.
However, payments using the already added balance on the smartphone payment service can still be made during the service suspension period.
What happens if I transfer funds from another financial institution to a Mizuho Bank account during the system maintenance?
Transfers to Mizuho Bank and Mizuho Trust & Banking Accounts: Transfers from other financial institutions during the suspension period may be credited to the account on or after Tuesday, October 14.