zaległości płatnicze in inglese:

A few days would have been excusable, but you are in arrears for 10 days.

to fall into arrears with sth

Jack was in arrears with his rent all the time so he was ordered to pay rent arrears of £550... We’ve got 3 months' arrears to pay.

He is already in arrears with the rent.

His arrears amount to an incredible sum.

He was in arrears for thousands of dollars