A chief cashier of Standard Chartered Bank was charged on Monday with pocketing $500,000 from the Serangoon Garden Way branch.
Koh Mui Hoong, 47, is alleged to have committed criminal breach of trust as a servant between the second week of January and second week of May this year.
She is remanded at Ang Mo Kio police divison for a week for further investigation.
Police arrested the suspect on Sunday and recovered cash of $1,000 and gambling chips worth $4,905.
She will be back in court on May 27.
If convicted, she could be jaile for up to 15 years and fined.