A Virtual Mailbox for Your Business in Japan

Running a GK, KK, or subsidiary in Japan? We receive your company's postal mail, scan and digitize it, translate it with AI, and deliver it to your team — wherever they are in the world.

app.mailmate.jp/dashboard
M
MailMate
Inbox
Documents
Shipments
Bill Pay
Team

Company Inbox

All mail ▾
National Tax Agency
Corporate tax filing notice — FY2025
New
Today
Legal Affairs Bureau
Company registration renewal confirmation
Translated
Today
Mizuho Bank
Monthly account statement — March 2026
Scanned
Mar 21
NTT Communications
Office internet — Invoice ¥8,640
Paid
Mar 20
Shibuya Ward Office
Business license renewal — due Apr 30
Forwarded
Mar 18
Japan Pension Service
Employee enrollment confirmation
Translated
Mar 15
12
Translated this week
¥42,800
Bills paid this month

Trusted by companies of every structure operating in Japan

Kabushiki Kaisha株式会社 (KK)
Godo Kaisha合同会社 (GK)
StartupsSeed to Series B
SubsidiariesForeign HQ → Japan subsidiary
Representative OfficesPre-incorporation presence

Stop relying on intermediaries to tell you what's going on with your Japanese entity. See it yourself.

Most companies managing a Japanese entity from abroad depend on agents, assistants, or local staff to relay what came in the mail. With MailMate, your team sees every piece of correspondence directly — translated, organized, and actionable — the moment it arrives.

Direct visibility
See exactly what arrived, what it says, and what it means — no middleman
Full understanding
AI translates and summarizes every document so your team can act immediately
Complete control
Decide who sees what, track every action, and maintain a full audit trail
How It Works

Your Company's Mail, Digitized in 4 Steps

No more flying to Japan to check your mailbox. No more asking your registered agent to send you photos. We handle it all.

1. Register Your Address

Get a business-grade Japanese address for your GK, KK, or subsidiary. Use it for company registration, tax filings, and official correspondence.

2. We Receive & Scan

All postal mail is received at our secure facility and scanned to high-resolution PDF — government notices, tax forms, bank statements, contracts, and more.

3. AI Translates & Summarizes

Our AI translates Japanese documents into English and flags key deadlines, amounts, and required actions — so your team can act without guessing.

4. Your Team Takes Action

Store, forward, pay bills, share with your accountant or legal team, or ship originals to your HQ. Everything from one dashboard.

Platform Features

Everything Your Business Needs to Stay on Top of Mail in Japan

Built for the operational reality of running a Japanese entity when your team isn't on the ground full-time.

Mail Receiving & Alerts

Every piece of company mail is received, logged, and photographed. Your team gets instant notifications via email and push — no mail sits unopened.

Real-time notifications for your team

Scan, Open & Digitize

Request a scan with one click. We open your mail and create high-resolution PDFs — tax notices, legal documents, bank statements — all searchable and stored.

High-res scans, OCR searchable

AI Translation & Summaries

Every scanned document is translated from Japanese to English with AI and summarized with key action items. Your overseas team understands everything instantly.

Japanese to English + action items

Secure Document Archive

Every piece of company correspondence is archived with 256-bit encryption. Full-text search across years of mail — find any document in seconds for audits or compliance.

Search, filter & audit-ready

Forward & Ship Worldwide

Need original contracts or documents at your HQ? We ship via Japan Post EMS, FedEx, and DHL — tracked and insured — to 195+ countries.

FedEx, DHL, Japan Post EMS

Bill Payment Service

We pay your company's Japanese bills — utilities, taxes, insurance, pension, and vendor invoices — on your behalf. Never miss a deadline from overseas.

Tax, utilities & vendor invoices

Invoice & Receipt Management

Automatically extract amounts, dates, and vendor details from invoices and receipts. Export structured data to your accounting software or share with your bookkeeper.

Data extraction + accounting export
Centralized Control

Your Entity, Your Oversight

When you're managing a GK, KK, or subsidiary from New York, London, or Singapore — you need more than a mail forwarding service. You need to know what's going on, who's handling it, and that nothing slips through the cracks.

See Everything, From Anywhere

Every piece of mail your entity receives is scanned, translated, and surfaced in your dashboard. No waiting for someone to tell you what arrived — you see it the moment we do.

Control Who Sees What

Invite your CFO, accountant, legal counsel, or tax advisor — each with their own access level. Your accountant sees invoices and tax notices. Your legal team sees contracts. You see everything.

Full History & Audit Trail

Every action is timestamped — who opened it, who viewed it, who forwarded it, who paid it. When your auditor or regulator asks, the answer is already there.

HQ Stays in the Loop

Your overseas headquarters gets real-time visibility into the correspondence your Japanese entity is receiving — tax notices, government filings, vendor invoices — without relying on local staff to relay information.

AI Translation — Corporate Tax Notice

国税庁
法人税の確定申告について
法人名: 株式会社サンプル
事業年度: 2025年4月1日〜2026年3月31日
申告期限: 2026年5月31日
納付税額: ¥1,245,000

↓ AI Processing ↓
EN English Translation

National Tax Agency
Re: Corporate Tax Final Filing
Company name: Sample Kabushiki Kaisha
Fiscal year: April 1, 2025 – March 31, 2026
Filing deadline: May 31, 2026
Tax payable: ¥1,245,000

AI Summary

Corporate tax filing notice for FY2025. ¥1,245,000 due by May 31, 2026. Action required: file your corporate tax return and remit payment before the deadline to avoid penalties and interest.

AI-Powered Intelligence

Understand Every Document Without a Translator on Staff

Tax notices, government filings, legal correspondence — translated and summarized with action items so your overseas team can respond immediately.

  • Full-context translation — Not just word-for-word. Our AI understands Japanese business and legal terminology.
  • Action-oriented summaries — Every document is summarized with what it is, what's due, and what to do next.
  • Deadline & amount detection — Tax deadlines, payment amounts, and response dates are automatically highlighted.
  • Smart categorization — Tax, legal, banking, utilities, and vendor mail are automatically sorted into categories.
  • Works for all business documents — Corporate tax, consumption tax, pension, insurance, ward office, banks, and more.
Forward & Ship

Ship Original Documents to Your HQ — Anywhere in the World

Original contracts, notarized documents, or official filings that need physical delivery? We forward them worldwide via trusted carriers.

195+
Countries served
48h
Avg. processing
100%
Tracked & insured

Original Documents

Contracts, notarized documents, and official filings sent securely to your overseas HQ.

Parcel Consolidation

Combine multiple items into one shipment to reduce international shipping costs.

Express Delivery

Urgent documents? FedEx and DHL express options available for next-day global delivery.

Shred & Recycle

Securely shred junk mail, expired notices, and documents you no longer need.

Enterprise-Grade Security

Your Company's Mail Is Safe With Us

Corporate correspondence demands the highest level of protection. Our security infrastructure meets the standards your business requires.

256-bit AES Encryption

All digital documents encrypted at rest and in transit with bank-grade security.

24/7 Facility Surveillance

Physical mail stored in a monitored facility with restricted access and CCTV.

2FA & SSO

Two-factor authentication and single sign-on for enterprise teams. SAML supported.

P-Mark Certified

Certified under Japan's Privacy Mark — the highest standard for personal data protection.

SSL Protected
CISSP Certified
CREST Certified
P
P-Mark Certified
AML Compliant
Business Use Cases

Built for Every Stage of Your Japan Business

Whether you're incorporating, scaling, or managing operations remotely — MailMate keeps HQ connected to what's happening on the ground.

Startup Incorporation

Setting up a GK or KK? Get an incorporation address, receive your registration documents, and manage all post-incorporation correspondence online.

Japan Expansion

Entering the Japanese market from overseas? A virtual mailbox lets your HQ handle Japanese correspondence without boots on the ground.

Subsidiaries

Establishing a subsidiary of your foreign company? Get a registered address, bilingual mail management, and a Japanese phone number — instantly.

Remote Operations

Already incorporated but managing from overseas? Never miss a tax notice, government filing, or vendor invoice again. Your team sees everything in real time.

What Business Owners Say

Trusted by Companies Across the Globe

Businesses of every size use MailMate to manage their Japan operations.

"

Launching our Japan operations meant incorporating at a location in Japan and receiving Japanese mail — MailMate made this easy and enables us to better manage our Japanese subsidiary from our headquarters in New York.

SZ
Shiraz Zaidi
Finance Director, Localised
"

We specialize in Japan market entry support and we use MailMate to incorporate. It's easy, efficient, and cuts out having to put all the pieces of the puzzle together yourself. We recommend MailMate to our clients and use it for ourselves.

YK
Yuga Koda
Co-Founder, Nihonium
"

Mailmate allowed our fully remote office to operate as it should, and not have to check the mailbox on a weekly basis. Having the ability to receive the documents in a digital format also makes our operations much more efficient. Highly recommended for companies in need of a mailing address in Japan.

EG
Eran Galperin
Founder, Gymdesk
Frequently Asked Questions

Questions from Business Owners

Yes. MailMate provides business-grade addresses in Tokyo, Kyoto, Fukuoka, and other locations that are suitable for company registration, tax filings, and official government correspondence. Many of our customers use MailMate addresses on their company registration documents.
You receive a notification with a photo of the envelope within hours of arrival. When you request a scan, we typically open and digitize your mail within one business day. Urgent scan requests can be prioritized for time-sensitive corporate documents like tax notices or legal filings.
Absolutely. You can invite team members, your CFO, accountant, legal counsel, or tax advisor with role-based permissions. Each person sees only what they need — for example, your accountant sees invoices and tax notices, while your legal team sees contracts and regulatory correspondence.
Yes. We receive and process all types of government correspondence including notices from the National Tax Agency, ward offices, the Legal Affairs Bureau, Japan Pension Service, and more. Our AI translates these documents and highlights key deadlines so your team never misses a filing date.
Yes. We can pay your company's Japanese bills including utilities, taxes, insurance, pension contributions, and vendor invoices. This is especially valuable for companies managed from overseas who need someone on the ground to handle yen-denominated payments before deadlines.
Enterprise-grade security is built in. Physical mail is stored in a 24/7 surveilled facility. Digital documents are encrypted with 256-bit AES. We're P-Mark certified (Japan's highest privacy standard), our team holds CISSP and CREST certifications, and we support 2FA and SSO (including SAML) for corporate accounts.
Yes. Many customers start with a MailMate address as their incorporation address, then continue using it for ongoing mail management after their company is registered. Our bilingual team can help you redirect your mail and ensure a smooth transition during the incorporation process.

Ready to Take Control of Your Japanese Entity's Mail?

Join hundreds of businesses that manage their Japan operations with full visibility — no intermediaries, no surprises. Setup takes less than 5 minutes.

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