I'm sure it will be acceptable to my bank as an endorsement stamp (I needed to customize it to have "For Mobile Deposit" as the last line, as I already bought the boilerplate 4-line version, before I found out about that requirement), the type is very small to get all 5 lines. As a return address stamp, yes, but it really needs another 1/8" or 1/4" height to make full use of the width using larger fonts. Still a good deal, compared to buying it elsewhere.See full review