gBizID Explained: One Login for Japan's Government Services

gBizID is a single, shared corporate login operated by Japan's Digital Agency (デジタル庁) that lets a company access many government online services with one identity-verified account instead of a separate ID and password for each system. For foreign-owned companies operating in Japan, gBizID is the practical entry point to electronic administration: one account can reach national tax e-filing (e-Tax), local tax filing and payment (eLTAX), social insurance and labor procedures (e-Gov), and the jGrants subsidy portal. The account comes in three tiers, and the top tier, gBizID Prime, can even substitute for an electronic certificate when logging in to e-Tax and eLTAX. This guide explains what gBizID is, how the tiers differ, what each unlocks, and how a foreign representative obtains a Prime account.

Because gBizID sits underneath so much of Japan's tax and compliance machinery, understanding it early saves foreign companies a great deal of friction. It is a core part of Japan's digital tax and filing platforms, and it is often the first credential you should set up before touching any of the individual systems.

Key Takeaways

• One login, many services: gBizID (operated by the Digital Agency / デジタル庁) is a single corporate account for e-Tax, eLTAX, e-Gov, jGrants and other government systems.
• Three tiers: Prime (representative, identity-verified), Member (employees, issued by Prime), and Entry (self-declared, instant, limited services).
• Prime replaces a certificate: gBizID Prime can substitute for an electronic certificate when logging in to e-Tax and eLTAX, removing the need for a card reader in many workflows.
• Fast issuance: Applying for Prime via the gBizID app with a My Number Card typically issues the account in about 1-2 business days; the mail route uses a company seal certificate (登録印鑑証明書).
• Secured by MFA: Every gBizID Prime and Member login uses multi-factor app authentication, so account security does not rest on a password alone.

What is gBizID and who operates it?

gBizID is a common corporate authentication service run by Japan's Digital Agency that gives a business one login for multiple government online services, so you no longer register a separate account with each system. It was created to consolidate the fragmented landscape of government IDs into a single, reusable, identity-verified credential.

In practice, gBizID acts as the front door. Once your company holds an account, the same credential authenticates you across the systems that foreign companies use most: national tax e-filing, local tax filing and payment, social insurance and labor insurance procedures, and subsidy applications. Because the identity check is done once at the gBizID level, the connected services can trust the login without each one running its own verification. You can read the official overview on the Digital Agency's gBizID page.

What are the three gBizID tiers?

gBizID has three account tiers: Prime for the identity-verified company representative, Member for employees (issued by the Prime holder), and Entry for instant self-declared use with a limited service set. Choosing the right tier depends on who the account is for and what they need to do.

The Prime account is the anchor. It is tied to the company representative, requires identity verification, and unlocks the full range of connected services, including e-Tax and eLTAX. Critically, the Prime holder can issue any number of Member accounts to staff, delegating access without sharing the representative's own credentials. Entry accounts are self-declared, issued instantly online with no identity check, and are limited to a narrower set of services, which makes them useful for quick, low-stakes procedures but not for tax filing.

TierWho it is forHow it is issuedServices and limitsgBizID PrimeCompany representativeIdentity-verified; via gBizID app + My Number Card (~1-2 business days) or by mail with a company seal certificate (登録印鑑証明書)Full access, including e-Tax and eLTAX; can substitute for an electronic certificate; can issue Member accountsgBizID MemberEmployees / staffIssued by the company's Prime account holderAccess to services delegated by the Prime holder; no ability to create further accountsgBizID EntrySole proprietors or quick sign-upsSelf-declared, instant online issue; no identity verificationLimited set of services; not suitable for e-Tax/eLTAX tax filing

What services can you access with gBizID?

A single gBizID account reaches a growing list of government systems, including e-Tax, eLTAX, e-Gov and jGrants. The exact reach depends on your tier, but a Prime account covers the platforms most relevant to running a company in Japan.

For tax, gBizID Prime logs you in to e-Tax for national taxes such as corporation tax and consumption tax, and to eLTAX for local taxes including corporate inhabitant tax and enterprise tax. For social insurance and labor procedures, the same account authenticates you on e-Gov, where social insurance and labor insurance filings are handled. It also opens jGrants, the government's subsidy application portal. If your workload is weighted toward local taxes, our explainer on eLTAX and the Common Tax Payment System covers that platform in depth.

ServiceWhat it handlesOperated bye-TaxNational taxes: corporation tax (法人税), consumption tax (消費税), withholding income tax; qualified invoice issuer registrationNational Tax Agency (国税庁)eLTAXLocal taxes: corporate inhabitant tax (法人住民税), enterprise tax (法人事業税), employees' inhabitant tax via special collectionOrganization for Local Tax (地方税共同機構)e-GovSocial insurance (health & pension) and labor insurance (労働保険) proceduresJapan e-government portaljGrantsApplications for government subsidies and grantsDigital Agency (デジタル庁)

How does gBizID Prime replace an electronic certificate?

On e-Tax and eLTAX, a gBizID Prime login can stand in for an electronic certificate, so you can file without a My Number Card reader or a commercial certificate at each sign-in. This is one of the biggest practical benefits of holding a Prime account.

Traditionally, logging in to e-Tax or eLTAX required an electronic certificate, such as one embedded in a My Number Card read with a card reader, or a purchased commercial certificate. Because gBizID Prime is already identity-verified, the tax systems accept it as an equivalent credential. For a finance team filing returns regularly, this removes a recurring hardware and setup burden. It is worth noting that companies with paid-in capital exceeding ¥100 million are required to e-file national tax returns via e-Tax and local returns via eLTAX for fiscal years beginning on or after 1 April 2020, so a reliable, low-friction login is not optional for larger entities. Smaller companies can and generally should file electronically voluntarily as well.

How does a foreign representative obtain gBizID Prime?

A foreign representative obtains gBizID Prime either through the gBizID smartphone app using a My Number Card, which typically issues the account in about 1-2 business days, or by mail using a company seal certificate (登録印鑑証明書). Both routes verify the representative's identity before the account is activated.

The faster path is the app route: install the gBizID app, and use it together with a My Number Card to complete identity verification electronically. Issuance in this flow is usually about 1-2 business days. If the representative does not hold a My Number Card, the mail route is available: you submit an application on paper accompanied by the company's seal certificate (登録印鑑証明書), which naturally takes longer because it depends on postal processing and manual review. Foreign representatives should plan for the My Number Card option where possible, since it is both faster and avoids the seal-certificate paperwork. Note that gBizID materials and interfaces are heavily Japanese-language, which is one reason many foreign companies have their filing agent handle the setup.

How is a gBizID account kept secure?

gBizID protects Prime and Member logins with multi-factor app authentication, so a stolen password alone cannot access government services. Security is built into the sign-in rather than left to the user.

Each login combines the account password with a one-time verification through the authentication app, meaning a would-be intruder would need both the credential and the registered device. For a company entrusting a single account with tax filing, subsidy applications and social insurance procedures, this layered approach matters. It also means the Prime holder should keep the registered device and recovery details controlled, since that account governs the issuance of Member accounts and the delegation of access across the organization.

Frequently Asked Questions

Do I need gBizID if I already have a My Number Card certificate?

Not strictly, but it is usually worth having. You can log in to e-Tax and eLTAX with an electronic certificate from a My Number Card, but that requires a card reader at each session. A gBizID Prime account can substitute for the certificate on those systems and also reaches e-Gov and jGrants with the same login, so it consolidates access. Many companies set up Prime specifically to reduce reliance on the card reader.

Can employees file on behalf of the company without the representative's login?

Yes. The gBizID Prime holder can issue gBizID Member accounts to employees, giving staff their own credentials to perform delegated procedures. This avoids sharing the representative's login and lets you control who can access which services. Member accounts cannot create further accounts, so account issuance stays centralized with the Prime holder.

Is gBizID Entry enough for tax filing?

No. gBizID Entry is self-declared and issued instantly without identity verification, and it is limited to a narrower set of services. It does not provide the verified status needed to substitute for an electronic certificate on e-Tax and eLTAX. For company tax filing, you need a gBizID Prime account, optionally supplemented by Member accounts for staff.

How long does it take a foreign company to get set up?

If the representative holds a My Number Card, the gBizID app route typically issues a Prime account in about 1-2 business days. The mail route with a seal certificate (登録印鑑証明書) takes longer due to postal processing and manual review. Because the process and interfaces are largely in Japanese, foreign companies often ask a filing agent to prepare and manage the application, which can smooth timing and reduce errors.

Setting up gBizID correctly is the foundation for smooth electronic filing across Japan's tax and compliance systems, and getting the tiers and delegation right from the start avoids rework later. AQ Partners provides back-office, accounting, payroll, tax and compliance support for foreign companies, funds and families in Japan, and can act as your filing agent across e-Tax, eLTAX and e-Gov, including setting up and managing gBizID accounts. Learn more about our back-office operations, or contact AQ Partners at hello@aqpartners.jp to get started.

Sources

• Digital Agency (デジタル庁) — gBizID overview and account tiers.
• National Tax Agency (国税庁) — e-Tax login methods and mandatory e-filing for large corporations.
• Organization for Local Tax (地方税共同機構) — eLTAX login and access.
• JETRO — Corporate taxes and electronic filing in Japan.