have your fingers in the till

have (one's) fingers in the till

To be stealing money from one's workplace or employer. Margaret has had her fingers in the till for years, but she finally got caught when her secret account was discovered.
See also: finger, have, till
Farlex Dictionary of Idioms.

have (or with) your fingers (or hand) in the till

stealing from your employer. Compare with with your hand in the cookie jar (at cookie).
See also: finger, have, till
Farlex Partner Idioms Dictionary

have your ˌfingers/ˌhand in the ˈtill

(British English, informal) steal, especially small amounts of money from a shop/store, business, etc. where you work: He lost his job after they found he’d had his hand in the till.
See also: finger, hand, have, till
Farlex Partner Idioms Dictionary
See also:
  • have (one's) fingers in the till
  • have your fingers/hand in the till
  • with (one's) fingers in the till
  • with (one's) hand in the till
  • hand in the till, with one's
  • have your hand in the till
  • have (one's) hand in the till
  • have hand in the till
  • catch (one) with (one's) fingers in the till
  • find (one) with (one's) fingers in the till