支出を

expenses

→ 支出
phrase Rare #32,206
expenses 支出 means “expenditures” or “expenses,” and を marks it as the object of the verb. The phrase commonly appears before verbs such as 計算する (calculate), 減らす (reduce), and 削減する (cut).
JA: 毎月の支出を見直しています。
EN: I am reviewing my monthly expenses.

彼は支出を計算した

He calculated the expenses.

母は毎月支出を計算した

My mother calculated the monthly expenses.

彼女は支出を徐々に削減した

She gradually cut back on her spending.

収入超過して支出をするな

Don’t spend more than you earn.