How to say "payback" in Japanese

• 仕返ししかえしCommon
  noun, suru verb, intransitive verbCovers payback as retaliation or revenge: getting even with someone who has wronged you. The nuance is tit for tat, answering a slight or injury in kind rather than letting it pass.
  この侮辱ぶじょくはきっと仕返しかえしをしてやるから。↗

  I'll get even with you for this insult!
• 払い戻しはらいもどしCommon
  noun, suru verb, transitive verbCovers payback in the financial sense: money paid back or returned, as with a repayment or refund. Use it when payback means getting money back, not getting even.
  旅行りょこうにかかった経費けいひは払い戻はらいもどしを請求せいきゅうできます。↗

  You can claim back your traveling expenses.

Choose 「仕返し」 when payback means getting even or revenge, and 「払い戻し」 when it means money paid back, as in a repayment or refund; the sense you intend decides the word.

Usage comparisons are AI-assisted and cross-checked by multiple models; for study reference only

• 仕返ししかえしpayback
• 払い戻しはらいもどしrepayment