Japan Post Bank currently offers and handles several different lending services, but they do not all work the same way. This guide explains the current options, product-specific requirements, costs, repayment structures, and application channels before you proceed.
Japan Post Bank’s current lending lineup includes housing-loan options, an Account Overdraft Service, and savings-secured automatic lending. Eligibility, rates, repayment methods, and application procedures depend on the specific product.
This guide helps you check current lending options, review product requirements, and understand the application steps without assuming that one process applies to every product.
Current Japan Post Bank Lending Options
The Japan Post Bank website currently lists several distinct lending services. They should be compared separately because their purposes, lenders, eligibility requirements, interest structures, and repayment methods differ.
Yucho Flat 35
Yucho Flat 35 is a long-term fixed-rate housing loan offered by Japan Post Bank in cooperation with the Japan Housing Finance Agency. It can be used for eligible home purchases, construction, or refinancing under the conditions of the product.
For August 2026, the published rates with the maximum applicable rate-reduction program and standard group credit life insurance are 1.97% during the reduction period for repayment terms of 20 years or less and 2.29% for terms of 21 to 35 years. After the applicable reduction period, the corresponding published rates are 2.97% and 3.29%. The actual borrowing rate depends on the conditions applying when the loan is funded.
Applicants must meet the product’s eligibility rules. These currently include being under age 70 when applying, having Japanese nationality, permanent-resident status or special permanent-resident status, and meeting the applicable debt-service criteria.
Sony Bank Housing Loans
Japan Post Bank acts as a banking agent for Sony Bank housing loans rather than being the lender itself.
For August 2026, the Japan Post Bank page shows a 1.347% variable rate for Sony Bank’s Variable Select Housing Loan, subject to the applicable conditions. It also lists a handling fee equal to 2.2% of the borrowed amount, including consumption tax. Actual rates may differ according to the product rules and the date funds are borrowed.
SBI Shinsei Bank Housing Loans
Japan Post Bank also acts as an intermediary for SBI Shinsei Bank housing loans.
The Japan Post Bank housing-loan page currently lists the PowerSmart Housing Loan Plus and shows August 2026 variable-rate information, including a regular rate of 1.050% and an eligible preferential rate of 1.030% under the stated conditions. The lender and final contractual terms are those applicable to the SBI Shinsei Bank product.
Account Overdraft Service
The Account Overdraft Service is different from a conventional personal installment loan. It automatically lends the amount needed when the balance in an eligible Japan Post Bank ordinary savings account is insufficient for certain withdrawals or payments.
The current published variable lending rate is 14.0% per year. The maximum credit limit is up to ¥500,000, although a new contract is currently limited to a maximum of ¥300,000. Use of the service is subject to review by Japan Post Bank and its designated guarantee company.
The service has no admission fee or annual fee, but interest applies when money is borrowed.
Savings-Secured Automatic Lending
Japan Post Bank also offers savings-secured automatic lending for customers who have eligible time deposits or fixed-amount savings held as collateral in a general account.
When the ordinary savings balance is insufficient, the shortfall can be lent automatically against the eligible savings. The borrowing limit is currently up to 90% of the deposited collateral amount, with a maximum of ¥3 million per general account.
The lending rate is linked to the rate on the savings used as collateral. For collateralized fixed-amount savings, the lending rate is the applicable contracted savings rate plus 0.25%. For collateralized time deposits, it is the contracted deposit rate plus 0.50%.
Review Product Requirements Before Applying
There is no single eligibility checklist for every Japan Post Bank lending product.
The Account Overdraft Service currently requires applicants to satisfy conditions including Japanese nationality or qualifying permanent-residence status, an age between 20 and 70 at contract formation, an eligible Japan Post Bank ordinary savings account, stable income or another qualifying situation, and acceptance by the designated guarantee company. Approval is not guaranteed.
Yucho Flat 35 follows different rules. Its published eligibility conditions include age, nationality or qualifying residence status, intended occupancy of the financed property, and debt-service limits based on annual income.
Sony Bank and SBI Shinsei Bank housing loans have their own lender-specific eligibility, underwriting and contractual conditions. Japan Post Bank acts as an intermediary for those products.
Always review the specific official product page rather than applying a requirement from one lending service to another.
Documents And Information Depend On The Product
Document requirements are also product-specific.
For the Account Overdraft Service online application, Japan Post Bank currently requires identity authentication through the Yucho Passbook App or Yucho Authentication App. The online process may require an eligible identification document such as a driver’s licence, qualifying passport, My Number Card, residence card or special permanent resident certificate, depending on the applicable identification procedure.
Housing loans generally involve a more extensive review of the borrower and property, with the exact information and documentation depending on the particular housing-loan product.
Before submitting anything, confirm the required documents on the official page for the product you are considering.
How The Application Process Works
The application process depends on the product. Not every Japan Post Bank lending service can be completed through the same online process.
Account Overdraft Service Online Application
The Account Overdraft Service currently supports a web-based application.
The official process includes registering or using the Yucho Passbook App or Authentication App, entering the required confirmation information, authenticating your identity, completing the application and submitting the required identification information.
Japan Post Bank currently states that applicants who apply online are generally notified of the review result by email about 10 days after applying. Additional time may be required if information or documentation needs to be resubmitted.
If a contract is established, the service can automatically cover eligible account shortfalls up to the approved limit.
Yucho Flat 35 Application
Yucho Flat 35 uses a different process.
Japan Post Bank currently instructs prospective applicants to contact a Japan Post Bank branch that handles housing loans for the application and related procedures. An online reservation can be made for a consultation, but this should not be confused with a fully online mortgage application.
Partner Housing Loans
For Sony Bank and SBI Shinsei Bank mortgages, Japan Post Bank acts as a banking intermediary. Application procedures, review, final approval and contractual terms depend on the relevant lender and product.
Understand Repayment Before Borrowing
Repayment rules also vary considerably.
For the Account Overdraft Service, the contractual repayment is currently generally ¥10,000 automatically debited from the repayment account on the 8th of each month when an outstanding amount exists. Customers can also make additional repayments through supported channels such as the Yucho Passbook App or ATM.
For savings-secured automatic lending, repayments can be made by depositing funds into the ordinary savings account. The loan generally runs for up to two years, or until the maturity of the collateral deposit when that occurs earlier. If the borrowing and interest are not repaid by the end of the lending period, the collateral savings may be redeemed and applied toward repayment.
Housing-loan repayments follow the contractual schedule of the specific mortgage product. Rates, fees, early-repayment conditions and insurance requirements should therefore be checked separately.
What Happens If Your Application Is Not Approved?
Approval is not guaranteed for products that require credit or guarantee review.
If an application is not accepted, avoid assuming that a single factor such as a “credit score” explains the decision unless the lender specifically provides that information. Review the official eligibility requirements and any communication supplied by the relevant lender or institution.
If you are considering another financing option, compare its actual interest rate, fees, repayment obligations and lender before submitting a new application.
Compare Costs By Product
Do not rely on old articles that present a single interest-rate range for “Japan Post Bank loans.”
Current borrowing costs differ materially by product. As of August 2026, the Account Overdraft Service has a published variable rate of 14.0%, Yucho Flat 35 has product-specific fixed housing-loan rates, partner mortgages have lender-specific rates and fees, and savings-secured lending uses a margin over the rate of the collateral savings.
Rates and terms can change. Always compare the current official terms before making a borrowing decision.
Use Official Channels
When applying or submitting financial information, use the official application channel for the exact product.
Japan Post Bank publishes product-specific information, application instructions and support contacts on its official website. For example, the Account Overdraft Service has separate support contacts for product/branch questions and internet-application questions.
For a housing loan handled on behalf of another bank, confirm the identity of the actual lender as well as Japan Post Bank’s intermediary role.
The Bottom Line
Japan Post Bank does not currently offer the broad personal-loan and auto-loan lineup described in older versions of this guide. Its current consumer lending services include housing-loan options, the Account Overdraft Service and savings-secured automatic lending, each with its own purpose, eligibility criteria, costs and application process.
Check the current lending option first, then review its requirements, rates, repayment structure and official application instructions. This makes it easier to understand what you are actually applying for and which institution is responsible for the loan.
Disclaimer
This article is an independent informational guide and is not affiliated with or endorsed by Japan Post Bank, Sony Bank, SBI Shinsei Bank or the Japan Housing Finance Agency.
Loan products, rates, eligibility requirements and application procedures may change. Always confirm the latest information through the official product page before applying.
Ready to Review the Official Application?
If the Japan Post Bank Account Overdraft Service matches your needs, review the current eligibility, 14.0% variable annual rate, repayment terms, and application requirements before proceeding.
