。
Taxi fares are going up next month.
Literal
Next-month taxi fare [subject-が] rises.
料金 ('fee / charge / fare') is a core service-pricing word — used for utilities, transport, and admission fees. The intransitive 上がる ('rise / go up') is the natural choice for prices changing on their own, contrasting with the transitive 上げる ('raise [something]') used when an agent does the raising. A compact news-headline-style statement.