pay the penalty

hell to pay

Very unpleasant consequences; a great deal of trouble.

hit pay dirt

To strike it rich; to get lucky or have a big break.

marriage penalty

A situation where a married couple pays more in taxes, typically income taxes, when filing jointly, than the two individuals would pay if filing as singles separately.

pay a visit

To visit.

pay attention

To attend; to be attentive; to focus one's attention.

pay dividends

To bring about something good as a result of past effort or actions.

pay heed

To give attention; to heed.

pay homage to

to show honor or respect to; to honor; to do, make or pay obeisance to