Notice of Temporary Service Suspension Due to IT System Maintenance (Saturday, August 8, 2026 – Sunday, August 9, 2026)

Thank you for using Mizuho Bank.
We will be conducting IT system maintenance from Saturday, August 8, 2026, to Sunday, August 9, 2026.
During the dates and times noted below, the services shown will be unavailable.
The suspension schedule may vary by service.
We sincerely apologize for any inconvenience this may cause and ask for your kind understanding.

List of Suspended Services

Request to Our Customers

During the service suspension period, Mizuho Bank and Mizuho Trust & Banking ATM cards cannot be used at Mizuho Bank ATMs or at certain ATMs of other financial institutions,including partner financial institutions and convenience store ATMs.
Transfers via Mizuho Direct online and telephone banking will also be unavailable.
In addition, transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, August 10, 2026.
Please note that Mizuho JCB Debit, Smart Debit, and Mizuho Business Debit can still be used during the system maintenance period.
We ask that you use ATMs or Mizuho Direct before the suspension period as necessary.

Service Suspension Schedule

From 10:00 PM on Saturday, August 8, 2026 to 11:00 AM on Sunday, August 9, 2026
Note: Similar system maintenance, including ATM service suspensions in October, is to be conducted multiple times in 2026.
If there are any changes to the service suspension schedule, updates will be provided on the Mizuho Bank website and other channels.
Note: Depending on maintenance status, services may also be suspended from 10:00 PM on Saturday, September 12, 2026, to 11:00 AM on Sunday, September 13, 2026.

List of Suspended Services

Services for Individual Customers

From 10:00 PM on Saturday, August 8, 2026, to11:00 AM on Sunday, August 9, 2026.

ATM Services

All transactions at Mizuho Bank ATMs
Transactions using Mizuho Bank and Mizuho Trust & Banking ATM cards at E-Net and Lawson Bank ATMs
Transfers using Mizuho Bank ATM cards at AEON Bank ATMs
Withdrawals and balance inquiries using Mizuho Trust & Banking ATM cards at AEON Bank ATMs
- Notes:
  - Availability may vary depending on the branch or partner financial institution.
  - Transfers at AEON Bank ATMs will be unavailable from 9:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.
  - Transactions using Mizuho Bank ATM cards at Seven Bank ATMs, VIEW ALTTE machines, and deposits, withdrawals, and balance inquiries at AEON Bank ATMs will remain available as usual.
    - (Designated fees may apply.)
  - Withdrawals and balance inquiries using Mizuho Trust & Banking ATM cards at AEON Bank ATMs will be unavailable from 5:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.
    - Depositing funds will remain available as usual.
  - The lottery ticket sales service at Mizuho Bank ATMs will be suspended from 8:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, August 10, 2026.

ATM Services

All transactions at Mizuho Bank ATMs
Transactions using Mizuho Bank and Mizuho Trust & Banking ATM cards at E-Net and Lawson Bank ATMs
Transfers using Mizuho Bank ATM cards at AEON Bank ATMs
Withdrawals and balance inquiries using Mizuho Trust & Banking ATM cards at AEON Bank ATMs
- Notes:
  - Availability may vary depending on the branch or partner financial institution.
  - Transfers at AEON Bank ATMs will be unavailable from 9:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.
  - Transactions using Mizuho Bank ATM cards at Seven Bank ATMs, VIEW ALTTE machines, and deposits, withdrawals, and balance inquiries at AEON Bank ATMs will remain available as usual.
    - (Designated fees may apply.)
  - Withdrawals and balance inquiries using Mizuho Trust & Banking ATM cards at AEON Bank ATMs will be unavailable from 5:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.
    - Depositing funds will remain available as usual.
  - The lottery ticket sales service at Mizuho Bank ATMs will be suspended from 8:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, August 10, 2026.

Mizuho Direct (Online Banking) and Related Services

Certain functions of online banking and the Mizuho Direct app
- (funds transfers (including between accounts of the same account holder); lottery ticket purchases [Loto and Numbers])
Certain functions of the online balance inquiry service
- (lottery ticket purchases (Loto and Numbers))
Pay-easy tax and fee payment services
- Notes:
  - The Mizuho Direct online funds transfer settlement service will remain available.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, August 10, 2026.

Mizuho Direct (Online Banking) and Related Services

Certain functions of online banking and the Mizuho Direct app
- (funds transfers (including between accounts of the same account holder); lottery ticket purchases [Loto and Numbers])
Certain functions of the online balance inquiry service
- (lottery ticket purchases (Loto and Numbers))
Pay-easy tax and fee payment services
- Notes:
  - The Mizuho Direct online funds transfer settlement service will remain available.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, August 10, 2026.

Mizuho Wallet for Android/Mizuho Wallet for iOS

J-Coin Pay: Returning funds to all accounts, including Mizuho Bank accounts

Mizuho Wallet for Android/Mizuho Wallet for iOS

J-Coin Pay: Returning funds to all accounts, including Mizuho Bank accounts

J-Coin Pay

Returning funds to all accounts, including Mizuho Bank accounts

J-Coin Pay

Returning funds to all accounts, including Mizuho Bank accounts

Everiwa Wallet

Merchant sales withdrawal functions

Everiwa Wallet

Merchant sales withdrawal functions

Aizu Coin

Merchant sales withdrawal functions

Aizu Coin

Merchant sales withdrawal functions

From 10:00 PM on Saturday, September 12, 2026, to11:00 AM on Sunday, September 13, 2026.

ATM Services

During the period from 8:00 AM to 11:00 AM on Sunday, September 13, 2026, the following impacts will apply:

When transfers are made from Mizuho Bank accounts to accounts at other banks via Mizuho Bank ATMs or E-Net and Lawson Bank ATMs, the funds will be credited on or after 8:30 AM on the next business day, Monday, September 14, 2026.
When transfers are made from Mizuho Bank accounts to other Mizuho Bank accounts via AEON Bank ATMs or other partner financial institution ATMs, the funds will be credited on or after 8:30 AM on the next business day, Monday, September 14, 2026.
- Notes:
  - Transfer requests will be accepted during this period.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, September 14, 2026.

ATM Services

During the period from 8:00 AM to 11:00 AM on Sunday, September 13, 2026, the following impacts will apply:

When transfers are made from Mizuho Bank accounts to accounts at other banks via Mizuho Bank ATMs or E-Net and Lawson Bank ATMs, the funds will be credited on or after 8:30 AM on the next business day, Monday, September 14, 2026.
When transfers are made from Mizuho Bank accounts to other Mizuho Bank accounts via AEON Bank ATMs or other partner financial institution ATMs, the funds will be credited on or after 8:30 AM on the next business day, Monday, September 14, 2026.
- Notes:
  - Transfer requests will be accepted during this period.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, September 14, 2026.

Mizuho Direct (Online Banking)

During the period from 8:00 AM to 11:00 AM on Sunday, September 13, 2026, the following impacts will apply:

When transfers are made from Mizuho Bank accounts to accounts at other banks via Mizuho Direct, the funds will be credited on or after 8:30 AM on Monday, September 14, 2026.
- Notes:
  - Transfer requests will be accepted during this period.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, September 14, 2026.

Mizuho Direct (Online Banking)

During the period from 8:00 AM to 11:00 AM on Sunday, September 13, 2026, the following impacts will apply:

When transfers are made from Mizuho Bank accounts to accounts at other banks via Mizuho Direct, the funds will be credited on or after 8:30 AM on Monday, September 14, 2026.
- Notes:
  - Transfer requests will be accepted during this period.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, September 14, 2026.

Mizuho Wallet for Android/Mizuho Wallet for iOS

J-Coin Pay: Returning funds to all accounts, including Mizuho Bank accounts, will be unavailable.

Mizuho Wallet for Android/Mizuho Wallet for iOS

J-Coin Pay: Returning funds to all accounts, including Mizuho Bank accounts, will be unavailable.

J-Coin Pay

Returning funds to all accounts, including Mizuho Bank accounts, will be unavailable.

J-Coin Pay

Returning funds to all accounts, including Mizuho Bank accounts, will be unavailable.

Aizu Coin

Merchant sales withdrawal functions

Aizu Coin

Merchant sales withdrawal functions

Everiwa Wallet

Merchant sales withdrawal functions

Everiwa Wallet

Merchant sales withdrawal functions

From 10:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.

ATM Services

All transactions at Mizuho Bank ATMs
Transactions using Mizuho Bank ATM cards at E-Net, Lawson Bank, Seven Bank ATMs, and VIEW ALTTE machines
Deposits, withdrawals, and balance inquiries using Mizuho Bank ATM cards at AEON Bank ATMs
Transactions using Mizuho Trust & Banking ATM cards at E-Net and Lawson Bank ATMs
Deposits using Mizuho Trust & Banking ATM cards at AEON Bank ATMs
- Notes:
  - Availability may vary depending on the branch or partner financial institution.
  - Transactions using Mizuho Bank ATM cards at VIEW ALTTE machines will be unavailable from 9:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.
  - Transfers using Mizuho Bank ATM cards at AEON Bank ATMs, as well as transactions at ATMs of other financial institutions (excluding convenience store ATMs), will remain available as usual.
    - (Designated fees may apply.)
  - Depositing funds using Mizuho Trust & Banking ATM cards at AEON Bank ATMs will be unavailable from 5:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.
    - Withdrawals and balance inquiries will remain available as usual.
  - The lottery ticket sales service at Mizuho Bank ATMs will be suspended from 8:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, October 19, 2026.

ATM Services

All transactions at Mizuho Bank ATMs
Transactions using Mizuho Bank ATM cards at E-Net, Lawson Bank, Seven Bank ATMs, and VIEW ALTTE machines
Deposits, withdrawals, and balance inquiries using Mizuho Bank ATM cards at AEON Bank ATMs
Transactions using Mizuho Trust & Banking ATM cards at E-Net and Lawson Bank ATMs
Deposits using Mizuho Trust & Banking ATM cards at AEON Bank ATMs
- Notes:
  - Availability may vary depending on the branch or partner financial institution.
  - Transactions using Mizuho Bank ATM cards at VIEW ALTTE machines will be unavailable from 9:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.
  - Transfers using Mizuho Bank ATM cards at AEON Bank ATMs, as well as transactions at ATMs of other financial institutions (excluding convenience store ATMs), will remain available as usual.
    - (Designated fees may apply.)
  - Depositing funds using Mizuho Trust & Banking ATM cards at AEON Bank ATMs will be unavailable from 5:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.
    - Withdrawals and balance inquiries will remain available as usual.
  - The lottery ticket sales service at Mizuho Bank ATMs will be suspended from 8:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, October 19, 2026.

Pay-easy Direct Debit Application Service

Applications for direct debit using Mizuho Bank ATM cards will be unavailable.

Pay-easy Direct Debit Application Service

Applications for direct debit using Mizuho Bank ATM cards will be unavailable.

Pay-easy Tax and Fee Payment Services

Use with Mizuho Bank ATM cards will be unavailable.

Pay-easy Tax and Fee Payment Services

Use with Mizuho Bank ATM cards will be unavailable.

Mizuho Wallet for Android/Mizuho Wallet for iOS

Mizuho Suica:

New issuance and adding funds from linked bank accounts will be unavailable.
Note: Payments within the already charged balance, cash charging at station ticket machines, cash charging at Seven Bank ATMs, adding funds via Apple Wallet, and other similar services will remain available.

J-Coin Pay:

Returning funds to all accounts, including Mizuho Bank accounts
Adding funds from Mizuho Bank accounts
- Note: Payments can still be made within the already charged balance.

Mizuho Wallet for Android/Mizuho Wallet for iOS

Mizuho Suica:

New issuance and adding funds from linked bank accounts will be unavailable.
Note: Payments within the already charged balance, cash charging at station ticket machines, cash charging at Seven Bank ATMs, adding funds via Apple Wallet, and other similar services will remain available.

J-Coin Pay:

Returning funds to all accounts, including Mizuho Bank accounts
Adding funds from Mizuho Bank accounts
- Note: Payments can still be made within the already charged balance.

J-Coin Pay

Returning funds to all accounts, including Mizuho Bank accounts
Adding funds from Mizuho Bank accounts

J-Coin Pay

Returning funds to all accounts, including Mizuho Bank accounts
Adding funds from Mizuho Bank accounts

Aizu Coin

Adding funds from Mizuho Bank accounts
Merchant sales withdrawal functions

Aizu Coin

Adding funds from Mizuho Bank accounts
Merchant sales withdrawal functions

Nyan Pay

Adding funds from Mizuho Bank accounts

Nyan Pay

Adding funds from Mizuho Bank accounts

Everiwa Wallet

Adding funds from Mizuho Bank accounts
Merchant sales withdrawal functions

Everiwa Wallet

Adding funds from Mizuho Bank accounts
Merchant sales withdrawal functions

Yakult Pay

Adding funds from Mizuho Bank accounts

Yakult Pay

Adding funds from Mizuho Bank accounts

Bank Pay

All transactions using Mizuho Bank accounts will be unavailable.

Bank Pay

All transactions using Mizuho Bank accounts will be unavailable.

Adding Funds to Various Payment Apps

Adding funds to PayPay and other payment apps from Mizuho Bank accounts will be unavailable.

Adding Funds to Various Payment Apps

Adding funds to PayPay and other payment apps from Mizuho Bank accounts will be unavailable.

Mizuho Debit Card Services (J-Debit)

Debit payments using ATM cards at J-Debit merchants

Mizuho Debit Card Services (J-Debit)

Debit payments using ATM cards at J-Debit merchants

For the Japanese-language website, click here.

List of Suspended Services

Services for Corporate Customers

From 10:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.

ATM Services

All transactions at Mizuho Bank ATMs
Transactions using Mizuho Bank and Mizuho Trust & Banking ATM cards at E-Net and Lawson Bank ATMs
Transfers using Mizuho Bank ATM cards at AEON Bank ATMs
Withdrawals and balance inquiries using Mizuho Trust & Banking ATM cards at AEON Bank ATMs
- Notes:
  - Availability may vary depending on the branch or partner financial institution.
  - Transfers at AEON Bank ATMs will be unavailable from 9:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.
  - Transactions using Mizuho Bank ATM cards at Seven Bank ATMs, VIEW ALTTE machines, and deposits, withdrawals, and balance inquiries at AEON Bank ATMs will remain available as usual.
    - (Designated fees may apply.)
  - Withdrawals and balance inquiries using Mizuho Trust & Banking ATM cards at AEON Bank ATMs will be unavailable from 5:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.
    - Depositing funds will remain available as usual.
  - The lottery ticket sales service at Mizuho Bank ATMs will be suspended from 8:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, August 10, 2026.

ATM Services

All transactions at Mizuho Bank ATMs
Transactions using Mizuho Bank and Mizuho Trust & Banking ATM cards at E-Net and Lawson Bank ATMs
Transfers using Mizuho Bank ATM cards at AEON Bank ATMs
Withdrawals and balance inquiries using Mizuho Trust & Banking ATM cards at AEON Bank ATMs
- Notes:
  - Availability may vary depending on the branch or partner financial institution.
  - Transfers at AEON Bank ATMs will be unavailable from 9:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.
  - Transactions using Mizuho Bank ATM cards at Seven Bank ATMs, VIEW ALTTE machines, and deposits, withdrawals, and balance inquiries at AEON Bank ATMs will remain available as usual.
    - (Designated fees may apply.)
  - Withdrawals and balance inquiries using Mizuho Trust & Banking ATM cards at AEON Bank ATMs will be unavailable from 5:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.
    - Depositing funds will remain available as usual.
  - The lottery ticket sales service at Mizuho Bank ATMs will be suspended from 8:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, August 10, 2026.

Mizuho e-Business Website

All services will be unavailable.

Mizuho e-Business Website

All services will be unavailable.

Mizuho Business Web

All services will be unavailable.

Mizuho Business Web

All services will be unavailable.

Mizuho Business Mobile

All services will be unavailable.

Mizuho Business Mobile

All services will be unavailable.

Densai Net Service

All services will be unavailable.

Note: Services will be suspended from 11:45 PM on Friday, August 7, 2026, to 11:00 AM on Sunday, August 9, 2026.

Densai Net Service

All services will be unavailable.

Note: Services will be suspended from 11:45 PM on Friday, August 7, 2026, to 11:00 AM on Sunday, August 9, 2026.

Computer Service (ANSER-SPC)

Funds transfer (including between accounts of the same account holder) functions

Computer Service (ANSER-SPC)

Funds transfer (including between accounts of the same account holder) functions

Home Use ANSER Service

Funds transfer (including between accounts of the same account holder) functions

Home Use ANSER Service

Funds transfer (including between accounts of the same account holder) functions

Mizuho ERP

Online banking integration functions: (1) retrieval of deposit and withdrawal transaction data and (2) funds transfer data integration will be unavailable.

Mizuho ERP

Online banking integration functions: (1) retrieval of deposit and withdrawal transaction data and (2) funds transfer data integration will be unavailable.

Mizuho Digital Accounting

Online banking integration functions (funds transfer data integration)

Mizuho Digital Accounting

Online banking integration functions (funds transfer data integration)

M's Palette

Single sign-on integration and deposit balance information updates

M's Palette

Single sign-on integration and deposit balance information updates

From 10:00 PM on Saturday, September 12, 2026, to 11:00 AM on Sunday, September 13, 2026.

ATM Services

During the period from 8:00 AM to 11:00 AM on Sunday, September 13, 2026, the following impacts will apply:

When transfers are made from Mizuho Bank accounts to accounts at other banks via Mizuho Bank ATMs or E-Net and Lawson Bank ATMs, the funds will be credited on or after 8:30 AM on the next business day, Monday, September 14, 2026.
When transfers are made from Mizuho Bank accounts to other Mizuho Bank accounts via AEON Bank ATMs or other partner financial institution ATMs, the funds will be credited on or after 8:30 AM on the next business day, Monday, September 14, 2026.
- Notes:
  - Transfer requests will be accepted during this period.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, September 14, 2026.

ATM Services

During the period from 8:00 AM to 11:00 AM on Sunday, September 13, 2026, the following impacts will apply:

When transfers are made from Mizuho Bank accounts to accounts at other banks via Mizuho Bank ATMs or E-Net and Lawson Bank ATMs, the funds will be credited on or after 8:30 AM on the next business day, Monday, September 14, 2026.
When transfers are made from Mizuho Bank accounts to other Mizuho Bank accounts via AEON Bank ATMs or other partner financial institution ATMs, the funds will be credited on or after 8:30 AM on the next business day, Monday, September 14, 2026.
- Notes:
  - Transfer requests will be accepted during this period.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, September 14, 2026.

Mizuho e-Business Website

All services will be unavailable.

Mizuho e-Business Website

All services will be unavailable.

Mizuho Business Web

All services will be unavailable.

Mizuho Business Web

All services will be unavailable.

Mizuho Business Mobile

All services will be unavailable.

Mizuho Business Mobile

All services will be unavailable.

Densai Net Service

All services will be unavailable.

Note: Services will be suspended from 11:45 PM on Friday, September 11, 2026, to 11:00 AM on Sunday, September 13, 2026.

Densai Net Service

All services will be unavailable.

Note: Services will be suspended from 11:45 PM on Friday, September 11, 2026, to 11:00 AM on Sunday, September 13, 2026.

Computer Service (ANSER-SPC)

Same-day designated transfers from Mizuho Bank accounts to accounts at other banks

Computer Service (ANSER-SPC)

Same-day designated transfers from Mizuho Bank accounts to accounts at other banks

Home Use ANSER Service

Same-day designated transfers from Mizuho Bank accounts to accounts at other banks

Home Use ANSER Service

Same-day designated transfers from Mizuho Bank accounts to accounts at other banks

Mizuho ERP

Online banking integration functions: (1) retrieval of deposit and withdrawal transaction data and (2) funds transfer data integration will be unavailable.

Mizuho ERP

Online banking integration functions: (1) retrieval of deposit and withdrawal transaction data and (2) funds transfer data integration will be unavailable.

Mizuho Digital Accounting

Online banking integration functions (funds transfer data integration)

Mizuho Digital Accounting

Online banking integration functions (funds transfer data integration)

M's Palette

Single sign-on integration and deposit balance information updates

M's Palette

Single sign-on integration and deposit balance information updates

From 10:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.

ATM Services

All transactions at Mizuho Bank ATMs
Transactions using Mizuho Bank ATM cards at E-Net, Lawson Bank, Seven Bank ATMs, and VIEW ALTTE machines
Deposits, withdrawals, and balance inquiries using Mizuho Bank ATM cards at AEON Bank ATMs
Transactions using Mizuho Trust & Banking ATM cards at E-Net and Lawson Bank ATMs
Deposits using Mizuho Trust & Banking ATM cards at AEON Bank ATMs
- Notes:
  - Availability may vary depending on the branch or partner financial institution.
  - Transactions using Mizuho Bank ATM cards at VIEW ALTTE machines will be unavailable from 9:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.
  - Transfers using Mizuho Bank ATM cards at AEON Bank ATMs, as well as transactions at ATMs of other financial institutions (excluding convenience store ATMs), will remain available as usual.
    - (Designated fees may apply.)
  - Depositing funds using Mizuho Trust & Banking ATM cards at AEON Bank ATMs will be unavailable from 5:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.
    - Withdrawals and balance inquiries will remain available as usual.
  - The lottery ticket sales service at Mizuho Bank ATMs will be suspended from 8:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, October 19, 2026.

ATM Services

All transactions at Mizuho Bank ATMs
Transactions using Mizuho Bank ATM cards at E-Net, Lawson Bank, Seven Bank ATMs, and VIEW ALTTE machines
Deposits, withdrawals, and balance inquiries using Mizuho Bank ATM cards at AEON Bank ATMs
Transactions using Mizuho Trust & Banking ATM cards at E-Net and Lawson Bank ATMs
Deposits using Mizuho Trust & Banking ATM cards at AEON Bank ATMs
- Notes:
  - Availability may vary depending on the branch or partner financial institution.
  - Transactions using Mizuho Bank ATM cards at VIEW ALTTE machines will be unavailable from 9:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.
  - Transfers using Mizuho Bank ATM cards at AEON Bank ATMs, as well as transactions at ATMs of other financial institutions (excluding convenience store ATMs), will remain available as usual.
    - (Designated fees may apply.)
  - Depositing funds using Mizuho Trust & Banking ATM cards at AEON Bank ATMs will be unavailable from 5:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.
    - Withdrawals and balance inquiries will remain available as usual.
  - The lottery ticket sales service at Mizuho Bank ATMs will be suspended from 8:00 PM on Saturday, October 17, 2026, to 11:00 AM on Sunday, October 18, 2026.
  - Transfers from other financial institutions to Mizuho Bank or Mizuho Trust & Banking accounts during the service suspension period may be credited on or after Monday, October 19, 2026.

Mizuho Business Web

All services will be unavailable.

Mizuho Business Web

All services will be unavailable.

Mizuho Business Mobile

All services will be unavailable.

Mizuho Business Mobile

All services will be unavailable.

Densai Net Service

All services will be unavailable for customers using Mizuho Business Web.

Note: Customers using the Mizuho e-Business Website will remain able to use services as usual.

Densai Net Service

All services will be unavailable for customers using Mizuho Business Web.

Note: Customers using the Mizuho e-Business Website will remain able to use services as usual.

Computer Service (ANSER-SPC)

Balance inquiries
Funds transfers (including between accounts of the same account holder)

Computer Service (ANSER-SPC)

Balance inquiries
Funds transfers (including between accounts of the same account holder)

Home Use ANSER Service

Balance inquiries
Funds transfers (including between accounts of the same account holder)

Home Use ANSER Service

Balance inquiries
Funds transfers (including between accounts of the same account holder)

Mizuho ERP

Online banking integration functions: (1) retrieval of deposit and withdrawal transaction data and (2) funds transfer data integration will be unavailable.

Mizuho ERP

Online banking integration functions: (1) retrieval of deposit and withdrawal transaction data and (2) funds transfer data integration will be unavailable.

Mizuho Digital Accounting

Online banking integration functions via Mizuho Business Web (funds transfer data integration)

Mizuho Digital Accounting

Online banking integration functions via Mizuho Business Web (funds transfer data integration)

M's Palette

Single sign-on integration and deposit balance information updates

M's Palette

Single sign-on integration and deposit balance information updates

For the Japanese-language website, click here.

Frequently Asked Questions (FAQ)

When will the system maintenance (service suspension) take place?

The system maintenance is scheduled from 10:00 PM on Saturday, August 8, 2026, to 11:00 AM on Sunday, August 9, 2026.
Similar system maintenance, including ATM service suspensions in October, is planned multiple times in 2026.
If there are any changes to the service suspension schedule, updates will be provided on the Mizuho Bank website and other channels.

When will the system maintenance (service suspension) take place?

What is the overview of the system maintenance?

The maintenance is required due to the expiration of maintenance support for the legacy core banking system, which handles essential banking operations such as for deposits, loans,and funds transfers.

What is the overview of the system maintenance?

Which services will be suspended during the system maintenance planned for August 2026?

The use of Mizuho Bank and Mizuho Trust & Banking ATM cards at Mizuho Bank ATMs or at certain ATMs of other financial institutions, including partner financial institutions and convenience store ATMs, as well as funds transfers via Mizuho Direct, will be temporarily suspended.
For details, please refer to the List of Suspended Services.

Which services will be suspended during the system maintenance planned for August 2026?

Will there be any changes to the products and services I currently use?

There will be no changes to product or service content. All services can be used as usual after the maintenance is completed.

Will there be any changes to the products and services I currently use?

There will be no changes to product or service content. All services can be used as usual after the maintenance is completed.

Can Mizuho JCB Debit, Smart Debit, and Mizuho Business Debit be used?

Yes. These services will remain available during the system maintenance period.

Can Mizuho JCB Debit, Smart Debit, and Mizuho Business Debit be used?

Yes. These services will remain available during the system maintenance period.

I use smartphone payment services (e.g., --Pay), 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 existing balance on the smartphone payment service can still be made during the service suspension period.

I use smartphone payment services (e.g., --Pay), adding funds from my Mizuho Bank account. What happens during the system maintenance?

What happens if I transfer funds from another financial institution to a Mizuho Bank account during the maintenance?

In addition, transfers from other financial institutions to Mizuho Bank or Mizuho Trust &Banking accounts may be credited on or after Monday, August 10, 2026.

What happens if I transfer funds from another financial institution to a Mizuho Bank account during the maintenance?

In addition, transfers from other financial institutions to Mizuho Bank or Mizuho Trust &Banking accounts may be credited on or after Monday, August 10, 2026.

I received an email from Mizuho Bank regarding a temporary service suspension due to system maintenance. However, I have already closed my account with Mizuho Bank, or I do not recall having any transactions with the bank. Why did I receive this email?

At the time the email was sent, the notification was delivered to customers who had an email address registered with Mizuho Bank or Mizuho Trust & Banking. If you received this email despite having closed your account prior to the date indicated in the email, please contact your branch of account (for corporate customers, please contact the branch handling corporate inquiries). If you received this email even though you have no recollection of having any transactions with Mizuho Bank, please contact your nearest Mizuho Bank branch.

I received an email from Mizuho Bank regarding a temporary service suspension due to system maintenance. However, I have already closed my account with Mizuho Bank, or I do not recall having any transactions with the bank. Why did I receive this email?

0120-324-258

Toll-free

Dedicated Call Center

If you have any questions, please contact us at the inquiry desk listed below.

This phone number is dedicated to inquiries regarding system maintenance. The dedicated call center will remain available during the service suspension period.

Hours: 9:00 AM to 5:00 PM(Weekdays, Saturdays, Sundays, and Public Holidays)