If a customer discovers her secretary has been embezzling from her since June, what is the period of time the payor bank is liable to the customer for the forged maker's signature?

The statements say 30 days on the back. Does the UCC state a time frame? Thanks.

The UCC provides a maximum timeframe of one year, but allows you to shorten that timeframe. If your statement says 30 days, chances are your deposit account agreement says the same, and that's the time you want to use.

The bank may also be protected by the "repeat offender" rule in UCC 4-406.