How to Say I Have to Go in Japanese: Mō Ikanakya, Sorosoro and O-saki ni

The four phrases and where each one lives

Japanese has a small family of phrases for I have to go, sorted by relationship. Mō ikanakya is what you say to a friend: a contraction of ikanakereba naranai, must go, with mō, now, in front. Sorosoro ikimasu is the neutral polite version, I will be going soon. Sorosoro shitsurei shimasu replaces the verb of going with shitsurei shimasu, excuse me, and is the one for hosts, teachers, seniors and anyone you address with masu. O-saki ni shitsurei shimasu is the office phrase, excuse me for going before you.

None of them is really a statement of obligation. English I have to go blames the clock; Japanese leave-taking apologises for breaking the shared time. That is why shitsurei shimasu, literally I am doing a rudeness, appears in the polite forms: leaving is your small rudeness and you are sorry for it.

Sorosoro: the word that does the real work

Sorosoro means little by little, and in leave-taking it means the moment is approaching. It is the most important word in this topic, because it turns an announcement into a warning. Sorosoro ikimasu tells the listener you will leave in the next few minutes, which gives them time to fetch your coat or finish the story. Kaerimasu on its own sounds like you are already halfway out.

Because sorosoro is a signal rather than the exit itself, it often appears as a fragment. Sorosoro, with nothing after it and a glance at the clock, is a complete sentence between adults. Sorosoro desu ne, said by the host, means the same thing from the other side, a gentle release that lets the guest leave without guilt.

Mō sorosoro adds a touch of already, so mō sorosoro shitsurei shimasu is a shade firmer, useful when you have said it once and been kept another twenty minutes.

Mō ikanakya and other ways to leave friends

With friends the vocabulary loosens and the reason moves to the front. Mō ikanakya is the everyday phrase, and ikanai to means the same; the dropped ending is what makes them casual. Young speakers also use ikanakucha, and in the Kansai region ikana akan. Attach the reason with kara, as in densha ga aru kara mō ikanakya, or simply state the time: yabai, mō jūji da.

A second casual pattern uses kaeru, go home: mō kaeru ne, or sorosoro kaerō ka na, thinking aloud about leaving. Kaeru is warmer than iku because it says where you are going. A third is to name the next thing: kono ato baito da kara, I have a shift after this. Friends do not expect an apology; they expect a reason and a promise to meet again, mata ne.

Avoid shitsurei shimasu with friends. It marks distance, and a friend who hears it will wonder whether they have offended you.

Ending a visit to someone's home

Leaving a Japanese home is a small ritual with three beats. The first is the signal: sorosoro shitsurei shimasu, or the more formal sorosoro o-itoma shimasu, said while still seated. The host will usually protest once, mō sukoshi ii ja nai desu ka, and you decline with a reason: ashita hayai node, I have an early start. The second beat is the thanks at the door: gochisōsama deshita if you ate, osoku made sumimasen deshita if it is late. The third is the farewell itself, shitsurei shimasu with a bow.

A reason that points at your own duties, an early start, a train, a child to collect, is a soft reason: it says nothing negative about the visit. A reason that points at the host, such as being tired of the conversation, is not. Keep it short and about you.

If you are the host and the guest says sorosoro, one protest is polite and two is pressure. Then walk them to the door and say ki o tsukete.

At work: o-saki ni shitsurei shimasu

Leaving the office in Japan has its own fixed phrase. O-saki ni shitsurei shimasu, excuse me for going before you, is what you say to colleagues who are still at their desks. It acknowledges that they are still working. The reply is otsukaresama deshita. You say it once to the room or to each nearby colleague, with a small bow, and leave; there is no need to explain at a normal hour.

When you leave early, or before your manager on a busy day, a check and a reason go in front: nani ka arimasu ka, is there anything you need, then byōin no yoyaku ga aru node, I have a hospital appointment. Seniors leaving before juniors say the same phrase, often shortened to o-saki ni.

Two things not to say. Sayōnara at the office sounds like you are not coming back. And kaerimasu on its own sounds as if you were talking to yourself; shitsurei shimasu is what makes the exit belong to the group.

Leaving phrases by situation

The table below matches each common situation to the phrase that fits, with a note on tone.

Ending calls and chats

On the phone the verb is often kiru, hang up, rather than iku. To a friend, ja, sorosoro kiru ne, then mata ne. To someone you address politely, sorosoro shitsurei shimasu, or dewa, shitsurei itashimasu at the formal end, followed by a thank you for their time. Custom holds that the caller ends the call and lets the other person hang up first, so pause a moment after your last phrase.

In messaging apps, leaving is lighter. Sorosoro neru ne, I am going to sleep now, ends an evening chat, and mata ne closes it. If you must stop mid-conversation, gomen, chotto yōji, then ato de mata, is enough. With a teacher or a client, sorosoro shitsurei shimasu still fits, and a sticker does not.

In every channel, the soft reason is what stops the exit sounding cold. Node and kara attach it to the leaving phrase; n desu adds explanation without excuse. Densha no jikan na n desu is friendlier than a bare shitsurei shimasu.

Mistakes that make leaving feel abrupt

The first mistake is skipping the signal. Standing up and saying shitsurei shimasu with no sorosoro before it feels like a door slamming, however polite the words. The second is over-explaining: one short reason is enough, three sound like a cover story. The third is the wrong level: shitsurei shimasu to a close friend creates distance, and ikanakya to a manager sounds like a teenager.

There is also a timing mistake: announcing sorosoro and then staying another half hour. Once you have said it, be at the door within a few minutes. If you truly want to stay, do not say it yet.

• Say sorosoro first, then the leaving phrase, then thanks
• Give one reason about yourself, never about the host or the food
• Match the level: ikanakya for friends, shitsurei shimasu for everyone else
• Answer o-saki ni shitsurei shimasu with otsukaresama deshita
• Drop sayōnara unless you will not meet again for a long time

If you get it wrong, a quick shitsurei shimashita at the door, or a thank-you message the next day, repairs it completely.