Going freelance in Japan as a foreigner sounds daunting. There are unfamiliar forms, a tax system that rewards preparation, and a language barrier that can make even a trip to the city office feel like an adventure. But the core setup — picking a legal structure, securing a web presence, filing your registration, and getting your accounting in order — can genuinely be completed over a single weekend if you know what you are doing.

This guide walks you through each step in plain English, with factual information about the forms required, the deadlines that matter, and the tools that will save you hours every tax season.

Before you buy a domain or open a bank account, you need to decide what kind of business entity you are operating as. For most foreigners starting out, the choice comes down to two options: sole proprietor (個人事業主, kojin jigyo nushi) or a joint-stock company (株式会社, kabushiki kaisha, commonly abbreviated KK).

Sole Proprietor (個人事業主)

A sole proprietorship is the simplest and fastest way to become self-employed in Japan. There is no minimum capital requirement, no notary, and no incorporation filing with the Legal Affairs Bureau. You register at your local tax office (税務署, zeimusho) by submitting a single form — the 開業届 — and you are legally operating.

For most freelancers — designers, engineers, translators, consultants, writers — sole proprietor status is entirely sufficient. Your business income and personal income are the same legal entity, which keeps things simple.

Visa consideration: If you are on an Engineer/Specialist in Humanities/International Services visa (技術・人文知識・国際業務, commonly called “Engineer/Humanities”), you are generally permitted to do freelance work in a field that matches your visa category. However, you must confirm with your immigration lawyer or the Immigration Services Agency that the specific work you plan to do is covered. Freelancing outside your visa category without a status change can jeopardize your residency.

Kabushiki Kaisha (株式会社, KK)

A KK is a full incorporated company. Since a 2006 amendment to the Companies Act, the minimum required capital is just ¥1, which makes incorporation technically affordable. In practice, you will want at least ¥100,000–¥500,000 to cover incorporation costs (notary fees, registration tax, seal creation) and initial operating capital.

The main advantages of a KK over a sole proprietorship are improved credibility with Japanese corporate clients, greater flexibility in bringing on co-founders or investors, and certain tax planning advantages once your revenue grows above roughly ¥5–6 million per year.

Visa consideration: To serve as a representative director (代表取締役) of a KK, foreigners typically need a Business Manager visa (経営・管理). This visa has its own requirements, including a physical business address and evidence of business viability. Switching from an existing work visa to a Business Manager visa requires advance planning.

Which Should You Choose?

For a first-time freelancer in Japan, sole proprietor is almost always the right starting point. You can always incorporate later. The administrative overhead of a KK — corporate tax filings, board resolutions, statutory audits at scale — adds cost and complexity that a solo operator rarely needs in the early stages.

Use our Budget Planner to model your projected income and expenses before deciding, since the break-even point for KK incorporation varies significantly depending on your revenue level and business type.

2. Getting a Domain and Basic Web Presence via お名前.com

Before you file anything official, securing your domain is a smart first move. It costs almost nothing, takes fifteen minutes, and gives you a professional email address and online home that you can reference on your business card and official documents.

Why a Domain Matters for Japanese Freelancers

Japanese corporate clients — and increasingly individual clients — expect a degree of formality. Having yourname@gmail.com on an invoice is a red flag; having hello@yourname.com or contact@yourstudio.jp signals that you are a serious operator. A .com domain works fine for most purposes; a .jp domain can signal local credibility if your target clients are Japanese companies.

Registering via お名前.com

お名前.com is Japan’s largest domain registrar and one of the most widely used by small businesses and freelancers. The interface is available in Japanese, but navigation is straightforward even for non-Japanese readers.

Step-by-step:

  1. Go to お名前.com and search for your desired domain name.
  2. Add the domain to your cart. .com domains are typically around ¥1,400–¥1,500 per year; .jp domains cost more (around ¥3,000–¥4,000/year).
  3. Create an account using your email address. You will need a Japanese phone number or a valid international number for SMS verification.
  4. At checkout, you can add optional services like Whois privacy protection (recommended — this hides your personal address from public domain lookup records) and DNS hosting.
  5. Complete payment. お名前.com accepts major credit cards and convenience store payment (コンビニ決済).

Once your domain is registered, you can set up a simple website using a static site generator, a hosted WordPress instance, or even a single landing page. For most early-stage freelancers, a one-page site with your services, contact form, and a professional headshot is more than sufficient.

Professional Email

With your domain registered, configure a professional email address. Options include:

  • Google Workspace (from around ¥680/month) — familiar interface, excellent deliverability.
  • Zoho Mail (free tier available for one user) — a solid zero-cost option when you are just starting.
  • お名前.com’s bundled mail service, which is included with some hosting plans.

3. Filing the Business Registration (開業届) — What Forms, Which Office

This is the step that officially makes you a sole proprietor in the eyes of the Japanese tax authorities. It is simpler than most people expect.

What Is the 開業届?

The 開業届 (kojin jigyo no kaigyou todoke), formally called the 個人事業の開業・廃業等届出書, is a notification — not an application — that you have started a business. You are not asking for permission; you are informing the National Tax Agency (国税庁) through your local tax office.

Deadline: You must submit the 開業届 within one month of the date you started your business activity. There is no penalty for late filing (the system does not automatically fine you), but filing on time is important for starting the clock on your 青色申告 application window.

What You Need

  • Your My Number (マイナンバー) — the 12-digit individual number issued to all residents of Japan.
  • Your registered seal (印鑑) — or, in many offices today, a signature is accepted.
  • Your address as registered on your residence card (在留カード).
  • The name of your business (屋号, yago) — this is optional but recommended. Choose something simple and professional; it will appear on your invoices and bank account.
  • Your business category (事業の概要) — a brief description in Japanese of what you do. “Webデザイン・コンサルティング” or “翻訳・通訳サービス” are typical examples.

Where to File

You file at the 税務署 (zeimusho) — the local branch of the National Tax Agency — that has jurisdiction over your residential address. To find the correct office, search “税務署 [your city/ward name]” or use the NTA’s official office locator at nta.go.jp.

You can file:

  • In person at the zeimusho (no appointment needed; bring your documents and My Number).
  • By post (registered mail to the zeimusho’s address).
  • Electronically via the e-Tax system (e-Tax requires a My Number Card and a card reader or compatible smartphone).

The form itself is available on the NTA website (search “個人事業の開業・廃業等届出書”) or you can pick one up at the zeimusho counter. Fill it out, keep a copy with the received stamp (受付印), and you are done.

Filing for 青色申告 (Blue Return) at the Same Time

This is critical: on the same day you file your 開業届, also file the 青色申告承認申請書 (application for approval to use the blue return filing method).

The 青色申告 (Blue Return) system gives you access to significant tax deductions not available to white return (白色申告) filers:

  • Up to ¥650,000 deduction from your business income if you use double-entry bookkeeping AND file electronically.
  • Up to ¥550,000 if you use double-entry bookkeeping but file on paper.
  • Up to ¥100,000 if you use simplified (single-entry) bookkeeping.

Deadline for Blue Return application: Within two months of your business start date (or, if you start between January 1 and January 15, by March 15 of the same year).

Missing this deadline means you default to white return for your first year, losing tens of thousands of yen in potential deductions. File both forms on the same day to avoid this completely.

4. Using freee to Handle Invoices and Prep for Kakuteishinkoku from Day One

Tax season in Japan — 確定申告 (kakuteishinkoku) — runs from February 16 to March 15 each year. As a sole proprietor, you are required to file your own income tax return covering the previous calendar year. The paperwork is manageable, but only if your records are in order throughout the year. This is where accounting software makes an enormous difference.

Why Start Accounting Software Immediately

The single most common mistake new freelancers make is treating accounting as something to worry about in February. By then, you have twelve months of bank statements, receipts, and invoices to reconstruct from memory. Starting freee on day one means your books are always current, and kakuteishinkoku becomes a matter of reviewing and submitting rather than a week-long audit of your own finances.

What freee Does

freee (pronounced “free”) is Japan’s leading cloud accounting platform for small businesses and sole proprietors. Its core functions include:

  • Automated bank and credit card synchronization — connect your business bank account and freee automatically imports and categorizes transactions.
  • Invoice creation and management — generate professional Japanese-format invoices (請求書) with your registered invoice number if applicable, send them by email or PDF, and track payment status.
  • Expense tracking — photograph receipts with your phone; freee’s OCR reads the amounts and suggests categories.
  • Payroll — if you hire employees or pay yourself a director’s salary in a KK structure.
  • Kakuteishinkoku filing — freee guides you through the annual tax return step by step and supports e-Tax electronic filing, which is required to claim the full ¥650,000 Blue Return deduction.

Setting Up freee as a New Sole Proprietor

Step 1: Create your account. Go to freee and sign up. Select “個人事業主” as your business type. The interface has an English-language option, though some tax-specific terminology remains in Japanese.

Step 2: Enter your business details. Input your business name (屋号), your business start date, your address, and your My Number. Select 青色申告 as your filing method.

Step 3: Connect your bank account. freee supports connections to most Japanese major banks (Mitsubishi UFJ, Mizuho, Sumitomo Mitsui, Japan Post Bank, Rakuten Bank, PayPay Bank, and many regional banks). Once connected, transactions sync automatically.

Step 4: Set up your invoice template. Under the invoicing section, enter your business name, address, bank account details for payment, and — critically — your 登録番号 (invoice registration number) if you have registered under the Invoice System (インボイス制度).

Step 5: Categorize your first transactions. freee will prompt you to categorize imported transactions. Common categories for freelancers include: 売上 (sales), 通信費 (communication expenses — phone, internet), 旅費交通費 (travel), 消耗品費 (supplies), 外注費 (subcontracting), and 広告宣伝費 (advertising).

The Invoice System (インボイス制度) — What Foreigners Need to Know

As of October 2023, Japan introduced the 適格請求書等保存方式 (Invoice System). Under this system, businesses that are registered as 適格請求書発行事業者 (qualified invoice issuers) can issue invoices with a unique registration number (T + 13 digits). Clients who are themselves consumption tax payers can only claim input tax credits on invoices that carry this number.

Practical implication for freelancers:

  • If your clients are individuals or small businesses that are themselves tax-exempt, the invoice system may not matter to them. You can operate without registering.
  • If your clients are large corporations or B2B operators who file consumption tax returns, they will likely require a registered invoice number from you. Without one, they lose the ability to claim input tax credits on what they pay you, which makes you less attractive as a vendor.
  • Registering as a qualified invoice issuer means you must collect and remit 消費税 (consumption tax, currently 10%), even if your annual revenue is under ¥10 million (the threshold that normally triggers consumption tax liability for small businesses).

For B2B freelancers, registering under the invoice system is increasingly a practical necessity. You can apply through the NTA’s e-Tax portal. freee walks you through setting up consumption tax handling once you enter your registration number.

Planning Your Finances: The Budget Planner

Once your bookkeeping is running, take thirty minutes to map your financial projections using our Budget Planner . Input your expected monthly revenue, your fixed costs (domain, software subscriptions, phone, coworking space), and your variable costs (travel, equipment). The planner will show you your projected net income and help you estimate quarterly tax payment obligations.

For a clearer picture of what you will actually take home after income tax and resident tax, use the Take-home Pay calculator . Japan’s tax brackets and resident tax (住民税) can take a significant share of income above ¥3–4 million, so understanding your effective take-home rate early helps you price your services correctly.

Weekend Action Plan: From Zero to Operational in 48 Hours

Here is a compressed checklist for turning a weekend into a fully operational freelance setup:

Saturday Morning

  • Decide on sole proprietor vs. KK structure based on visa status and revenue projections.
  • Register your domain at お名前.com . Enable Whois privacy.
  • Set up professional email (Google Workspace or Zoho Mail).

Saturday Afternoon

  • Download and fill in the 開業届 (個人事業の開業・廃業等届出書) from nta.go.jp.
  • Download and fill in the 青色申告承認申請書.
  • Confirm your local 税務署 address and opening hours (most are open weekdays 8:30–17:00; some have Saturday hours).

Sunday Morning

  • Visit the 税務署 and submit both forms. Keep the stamped copies.
  • Open a business bank account (Rakuten Bank and PayPay Bank offer online applications with fast turnaround for sole proprietors).

Sunday Afternoon

By Sunday evening, you have a registered business, a professional web presence, and accounting software tracking every yen from day one.

Common Mistakes to Avoid

Missing the Blue Return application window. This is the single costliest error. The ¥650,000 deduction available to Blue Return filers using double-entry bookkeeping and e-filing can translate to tens of thousands of yen in saved taxes annually. File the application simultaneously with your 開業届.

Using a personal bank account for business transactions. Mixing personal and business finances creates a bookkeeping nightmare at tax time. Open a dedicated business account immediately, even if it is just a free online bank account.

Ignoring consumption tax planning. Even if you are under the ¥10 million threshold and technically exempt, if you plan to do significant B2B work, consider registering under the invoice system from the start to avoid losing clients who require registered invoices.

Not keeping receipts. Under Blue Return rules, you can deduct business expenses — but only with documentation. freee’s receipt scanning feature removes the excuse for not keeping records. Photograph every receipt the day you receive it.

Assuming your current visa covers all freelance activities. Check with an immigration lawyer or administrative scrivener (行政書士) before you start. Some visa categories are narrowly defined. Working outside your permitted scope is a serious immigration violation.

Long-Term: Growing Your Freelance Business in Japan

Once you are operational, the next milestones to plan for are:

  • Incorporating as a KK when your annual revenue consistently exceeds ¥5–6 million and the tax planning advantages of a corporation begin to outweigh the administrative overhead.
  • Hiring — even one part-time assistant changes your compliance obligations significantly. freee’s payroll module handles withholding tax and social insurance calculations.
  • Expanding savings and investment — as a sole proprietor, you can contribute to an iDeCo (individual defined contribution pension) account, which offers significant income deductions. Use the Compound Interest calculator to model the long-term impact of consistent iDeCo contributions.

Final Thoughts

Setting up a freelance business in Japan as a foreigner is far less complicated than the language barrier makes it appear. The forms are standardized, the process is predictable, and the tools — from お名前.com for your web presence to freee for your accounting — are designed to be used by non-accountants.

The keys are: choose the right structure for your visa status, file your 開業届 and Blue Return application within the deadline windows, and start your bookkeeping on day one rather than scrambling in February. A weekend of focused action gets all of this done.

Use お名前.com to secure your domain and professional email, freee to keep your books clean from the first invoice, and our Budget Planner to make sure your pricing covers both your costs and your taxes.

Good luck — and welcome to self-employment in Japan.

Calculate your ideal freelance hourly rate → Freelance Rate Calculator

This article provides general informational guidance only and does not constitute legal, tax, or immigration advice. Regulations change; verify current rules with a qualified tax accountant (税理士), immigration lawyer, or the relevant government authorities before making decisions.

Affiliate Disclosure: This article contains affiliate links. If you register for a service through these links, we may earn a commission at no additional cost to you. We only recommend services we believe are genuinely useful for freelancers in Japan.

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