{"id":3509,"date":"2026-03-21T09:47:32","date_gmt":"2026-03-21T09:47:32","guid":{"rendered":"https:\/\/hankohub.com\/?p=3509"},"modified":"2026-03-21T09:47:34","modified_gmt":"2026-03-21T09:47:34","slug":"hanko-for-designers-a-foreigners-guide-to-using-seals-in-contracts-2","status":"publish","type":"post","link":"https:\/\/hankohub.com\/ja\/hanko-for-designers-a-foreigners-guide-to-using-seals-in-contracts-2\/","title":{"rendered":"Hanko for Designers: A Foreigner’s Guide to Using Seals in Contracts"},"content":{"rendered":"

If you’ve landed a design gig in Japan \u2014 freelance, agency, or in-house \u2014 you’ve probably already encountered your first bureaucratic curveball: the hanko. Not a signature, not an initial, but a small ink stamp that carries real legal and administrative weight across Japanese institutions. For designers specifically, the hanko situation comes up faster than most people expect, and often at the worst moments \u2014 mid-contract, during client onboarding, or on the morning your lease paperwork is due.<\/p>\n\n\n\n

This guide is written for working designers navigating Japan’s paper-heavy professional ecosystem. Whether you’re a motion designer at a Tokyo studio, a freelance UI\/UX consultant juggling multiple clients, or a foreign creative who just moved here and is figuring out how things actually work, the question eventually surfaces: do I need a hanko, and which one?<\/p>\n\n\n\n

The short answer is yes, you almost certainly will. The longer answer \u2014 which type, when, and how to get one that works for your situation \u2014 is what this guide covers.<\/p>\n\n\n\n

Why This Segment Is Asked for a Seal<\/h2>\n\n\n\n
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Design work in Japan spans a wide range of business structures. You might be employed full-time at an agency, contracted through a production company, operating as a sole proprietor (kojin jigyo-nushi<\/em>), or cycling between all three depending on the season. Each arrangement brings its own set of documents, and most of those documents still rely on stamps.<\/p>\n\n\n\n

Japan’s administrative culture hasn’t fully moved away from physical seals. Even in industries like design and tech, which skew younger and more digitally oriented, many clients \u2014 especially larger corporations, publishers, advertising agencies, and public-sector bodies \u2014 still require wet-ink stamp approval on contracts and invoices. This isn’t bureaucratic stubbornness for its own sake. In Japanese business culture, a stamped document signals finality, accountability, and mutual agreement in a way that a typed name doesn’t carry the same weight.<\/p>\n\n\n\n

For foreign designers, there’s an added layer: you may be unfamiliar with which seal is appropriate for which situation, or you may assume a signature is always an acceptable substitute. It sometimes is, but not reliably. A Japanese client’s accounting department may reject an invoice that isn’t stamped. A coworking space may require a stamped rental agreement. Your staffing agency may hand you a packet of documents that assume you already have a seal ready.<\/p>\n\n\n\n

The micro-scenario here is familiar to many: you receive a freelance contract from a Japanese client on a Friday, they need it back by Monday, and there’s a box labeled hanko<\/em> or inkan<\/em> with no English explanation. Not knowing whether to sign, stamp, or both is a stressful place to be. Knowing in advance that you’ll need a hanko \u2014 and having one ready \u2014 removes that friction entirely.<\/p>\n\n\n\n

Common Documents and Timelines<\/h2>\n\n\n\n

Designers in Japan encounter seal requirements across several categories of paperwork. Understanding when each tends to appear helps you plan ahead rather than scramble.<\/p>\n\n\n\n

Employment and staffing contracts.<\/strong> If you’re joining an agency or creative studio \u2014 even on a contract basis \u2014 your employment agreement will often include a stamp field. This typically happens on day one or even before you start, during the onboarding document phase.<\/p>\n\n\n\n

Freelance service contracts (gyomu itaku keiyaku<\/em>).<\/strong> Client-to-freelancer contracts are common in the Japanese design industry. These frequently include a stamp from both parties. If you’re working with a mid-size or larger Japanese company, expect this document to be formal and stamp-dependent.<\/p>\n\n\n\n

Invoices (seikyusho<\/em>).<\/strong> Not every client requires a stamped invoice, but many still do \u2014 particularly in traditional industries like publishing, advertising, and manufacturing. Having your hanko ready means you can submit invoices cleanly without back-and-forth.<\/p>\n\n\n\n

Lease agreements.<\/strong> If you’re renting an apartment or a studio workspace, your lease will almost certainly require a stamp. This is one of the most time-sensitive situations, since delays can hold up your move-in date.<\/p>\n\n\n\n

Bank account opening.<\/strong> Some banks require a registered seal (jitsuin<\/em> or ginko-in<\/em>) to open an account. Others accept a simpler personal seal. This varies by institution, so it’s worth checking with your specific bank in advance.<\/p>\n\n\n\n

City hall registrations.<\/strong> If you register as a sole proprietor at your local municipal office, or if you’re filing for certain residency-related paperwork, stamps may be required there too.<\/p>\n\n\n\n

The timeline pattern for designers is usually: lease paperwork \u2192 bank account \u2192 employment or client contract \u2192 ongoing invoicing. Getting your hanko early \u2014 ideally before or within the first week of arriving or starting work \u2014 means you’re prepared for all of it.<\/p>\n\n\n\n

Recommended Hanko Type and Size<\/h2>\n\n\n\n
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Not all hanko are the same, and for designers, the practical everyday needs are fairly clear.<\/p>\n\n\n\n

For most professional and administrative purposes, a mitome-in<\/strong> (\u8a8d\u3081\u5370) is sufficient. This is a general-purpose personal seal used for contracts, invoices, and everyday documents. It doesn’t need to be registered with the city office to be useful, which makes it accessible and low-friction.<\/p>\n\n\n\n

If you’re opening a bank account, you may need a ginko-in<\/strong> (\u9280\u884c\u5370), which is a seal specifically registered with your bank. This is slightly separate from your everyday stamp, and keeping them distinct is a common practice in Japan \u2014 using the same seal for everything increases the risk if it’s ever lost.<\/p>\n\n\n\n

A jitsuin<\/strong> (\u5b9f\u5370) is a registered personal seal with your local municipal office, and it carries the highest legal weight. It’s typically needed for major transactions \u2014 buying property, signing a mortgage, registering a company. For most foreign designers who are employed or freelancing, you’re unlikely to need a jitsuin immediately, but it’s worth knowing it exists.<\/p>\n\n\n\n

Size guidance:<\/strong> A standard personal hanko is typically 10.5mm\u201312mm in diameter for everyday use. This fits standard stamp fields on contracts and invoices. Larger corporate-style seals (13.5mm\u201315mm) are more common for business seals, not personal ones.<\/p>\n\n\n\n

Name considerations:<\/strong> Foreign names can be carved in katakana (phonetic), kanji (meaning-based), or romaji (Latin characters). Katakana is the most practical choice for most foreigners \u2014 it’s readable to Japanese parties and phonetically accurate to your name. Some designers opt for a kanji version they’ve chosen carefully, which can also work well and adds a personal touch.<\/p>\n\n\n\n

Common mistakes in this area:<\/p>\n\n\n\n