退職届と退職願 — 違いと書き方、円満退職への手順

Quitting a Japanese company involves customs and paperwork that differ markedly from the US or Europe. The distinction between taishoku-negai (resignation request) and taishoku-todoke (resignation notice) carries different legal weight, so using the right one matters.

This article covers the basic knowledge for an amicable resignation, how to write the letter, the standard timeline, and the recently surging "taishoku-daikou" proxy services.

A taishoku-negai is literally a "request" to leave. It can be withdrawn until the company formally accepts it, and it leaves room to negotiate timing and conditions with your boss and HR.

A taishoku-todoke, by contrast, is a confirmed notice. Once submitted, it cannot in principle be withdrawn, and under Civil Code Article 627 the employment contract ends two weeks after acceptance. Slamming down a taishoku-todoke in the heat of the moment is something to avoid.

TV dramas have spread the image of "slamming down a jihyou," but the word is actually reserved for executives, civil servants, and others whose role is based on appointment or commission rather than an employment contract. Regular employees should use taishoku-todoke, not jihyou.

Legally, two weeks' notice is enough, but most companies' work rules specify 1-3 months, and given the time needed for handover, securing at least one month of lead time is preferable.

Both letters should be handwritten vertically in black ink (fountain pen or ballpoint) on plain white writing paper. Place them in a plain white envelope with the title on the front and your department and full name on the back.

"Ishin-jou no tsugou" is a set phrase that comprehensively covers personal reasons (marriage, career change, health, family, etc.); you do not need to specify the actual cause. Note that it should not be used when the departure is for company-side reasons such as dismissal or bankruptcy.

The quality of your hikitsugi-sho (handover document) often determines whether your departure is remembered as amicable. Document the task list, ongoing projects, client contacts, the transfer list for access rights and passwords, and the annual schedule — at a granularity where your successor can reproduce the work alone just by reading it.

Using your remaining paid leave is a legal right. The common approach is to back-calculate from the resignation date to set your last in-office day so you can burn off the remaining days. Since this needs to be balanced with handover, share your plan with your boss early.

You may have signed a non-compete pledge at hiring or promotion. These often restrict joining competitors or starting a related business for a set period after departure. Enforceability depends on duration, geography, job type, and whether compensation was provided. Always re-read the original before deciding on your next employer.

Taishoku-daikou services, which exploded in popularity from around 2018, send a proxy to convey your resignation to the company on your behalf and handle document exchange. Fees typically run 30,000-50,000 yen, and services run by lawyers or labor unions can also negotiate unpaid wages.

Behind the surge are power harassment, long working hours, the "resignation refusal" problem where companies block departures, and younger workers' psychological resistance to face-to-face negotiation. The services are taking root as a safety net for workplaces where amicable resignation is unrealistic.

Japan has the proverb "tatsu tori ato wo nigosazu" (the departing bird leaves no muddy tracks), and the value that those who leave should leave things tidy remains deeply rooted. Correctly using taishoku-negai vs taishoku-todoke, handling the handover with care, and managing the documents you receive and return without omission is the best possible start to your next career.