incidental expense

A minor expense incurred in the course of an activity.

Japanese Meaning

活動中に発生する小規模な費用（付随費用）

When traveling for work, the company reimbursed any incidental expense I incurred, such as parking fees and tips.

出張中、会社は駐車料金やチップなど私が負担した雑費を払い戻してくれた。

Sense（1）

A minor expense incurred in the course of an activity.

His incidental expenses are high, but he gets the job done.

incidental expenses

（ plural ）