The MBTA is raising fares beginning July 1, despite calls from some prominent voices — including Boston Mayor Marty Walsh — to put off fare hikes in the wake of a derailment that left Red Line customers facing months of delays.

Here is what you need to know about the fare increases:

What is the subway increase?

A subway ride will now cost $2.40, up 15 cents.

Will bus fares increase?

No. Bus trips remain $1.70 with a Charlie Card and $2 for cash payments.

How about monthly passes?

Seven-day Link passes — for the bus and subway — will now cost $22.50, an increase of $1.25. A monthly Link pass jumps from $84.50 to $90.

Do these increases apply to seniors and students?

No. Reduced fares for senior and students remain in place. But fares for the Ride, the MBTA disability access system, will increase from $3.15 to $3.35, and from $5.25 to $5.60 for premium trips (more than three quarters of a mile from a bus or subway stop).

Are more fare increases coming?

MBTA last raised its fares in July 2016; after this increase, it is prohibited by law from raising rates again before July 2021.