手間てま vs. お手数てすう: How to Use Them Like Native Speakers

Japanese politeness can be subtle, and nowhere is this more evident than with 手間 (tema) and お手数 (otesuu). Both relate to effort or trouble taken, but one is neutral and direct, while the other is a formal expression of gratitude for someone’s effort. Using the wrong one at the wrong time can sound either too blunt or unnecessarily stiff.

Yuka

Rei, when should I say 手間 versus お手数？ They both seem to mean “trouble” or “effort.”

Rei

手間 is a neutral noun — it means the time, effort, or labor involved in doing something. お手数 is a formal, polite expression — short for お手数をおかけします — used when thanking or apologizing to someone for the trouble you’ve caused them. The key is: 手間 describes effort objectively; お手数 acknowledges someone else’s effort respectfully.

At a Glance: 手間 vs お手数

手間 (Tema) — Time and Effort Required

手間 (also read てま or てあいだ in some contexts) refers to the time and effort something requires. It’s a neutral descriptor — you use it to talk about tasks being laborious or time-consuming. The most common phrase is 手間がかかる (tema ga kakaru), meaning “it takes a lot of effort/time.” It can also appear in 手間をかける (to put in effort) and 手間を省く (to save effort / streamline).

▶ この料理は手間がかかる。
Kono ryouri wa tema ga kakaru.
This dish takes a lot of effort (to make).

▶ 手間を省くために自動化した。
Tema wo habuku tame ni jidouka shita.
We automated the process to save effort.

▶ 手間のかかる仕事だが、やりがいがある。
Tema no kakaru shigoto da ga, yarigai ga aru.
It’s a labor-intensive job, but it’s rewarding.

Yuka

So 手間 is like saying something is “a lot of work” — it’s about the effort itself?

Rei

Exactly! 手間 talks about the effort neutrally. You could say it positively (手間をかけた = made with care/effort) or negatively (手間がかかりすぎる = takes too much effort).

お手数 (Otesuu) — Acknowledging Someone Else’s Effort

お手数 is the honorific form of 手数（てすう）, which refers to the trouble or steps involved in something. Adding お makes it a polite expression directed at another person. The classic phrase お手数をおかけします (otesuu wo okake shimasu) is used constantly in Japanese business communication — in emails, on the phone, and in person — to say “I’m sorry to trouble you” or “thank you for your trouble.” It shows respect for the other person’s time and effort.

▶ お手数をおかけしますが、ご確認をお願いします。
Otesuu wo okake shimasu ga, go-kakunin wo onegai shimasu.
Sorry for the trouble, but could you please confirm?

▶ お手数ですが、もう一度お送りいただけますか？
Otesuu desu ga, mou ichido o-okuri itadakemasu ka?
I apologize for the trouble, but could you send it once more?

▶ お手数をおかけしました。ありがとうございました。
Otesuu wo okake shimashita. Arigatou gozaimashita.
I put you to a lot of trouble. Thank you so much.

Yuka

Oh, I see that phrase お手数をおかけします in Japanese emails all the time! It’s the polite way to say “sorry for bothering you”?

Rei

Exactly! It’s one of the most important business phrases in Japanese. Memorize お手数をおかけします and you’ll sound professional in any formal context.

Common Mistakes

Side-by-Side Comparison

Decision Flowchart

Are you talking about effort/labor?
         |
         v
Are you describing the effort involved in a task (neutral)?
  YES → 手間 ✅ (手間がかかる, 手間を省く)
  NO  ↓
Are you acknowledging or apologizing for trouble you've caused someone?
  YES → お手数 ✅ (お手数をおかけします)
Is the context formal (business, polite)?
  → お手数 ✅
Is the context casual (friends, family)?
  → 手間 or 迷惑をかける ✅

Quick Quiz

Yuka

This is super useful for Japanese business communication! Let me quiz myself.

Rei

Fill in with 手間 or お手数 (with appropriate conjugation).

Q1. “This handmade item takes a lot of effort.”
この手作り品は___がかかる → 手間 ✅

Q2. “Sorry to trouble you, but please check this document.” (formal email)
___をおかけしますが、このドキュメントをご確認ください → お手数 ✅

Q3. “We simplified the process to save effort.”
___を省くためにプロセスを簡略化した → 手間 ✅

Q4. “Thank you so much for your trouble.” (formal)
___をおかけしました。ありがとうございました → お手数 ✅

Q5. “Making sushi from scratch is a lot of work.”
寿司を一から作るのは___がかかる → 手間 ✅

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