I haven't shopped at the kohl's since like November, but I know back then they would only take KC if it was only like 1-2 days past its expiration date.
Not at my store anymore either. If you get their app it saves your Kohls cash and coupon offers right in it so you don't have to worry about misplacing it anymore. Mine still gives me the paper version as well. I have used it both ways.
I forgot to use my Kohl's Cash last time I earned it. I realized 3-4 days after it expired. I went to customer service and they checked it and said it was still good but to use it that day. They said they they give people a few extra days. It can't hurt to take it to the store to see if it is still good.
Doubtful they will extend that long, but in the future, just buy anything and then return it to extend the value.You will receive kc as your refund. Usually its valid for another 2 weeks.