What is a five dollar bill with a red seal worth?

Answer 1

The value of these bills (United States Notes) depends greatly on the date and condition. The three common dates are 1963 (last printed), 1953, and 1928 (first small size red seal notes). Most are not extraordinarily valuable but some are, moreso if they are clean and not badly worn.

You should post a question listing the year (with letter if any) and condition, in order to get any kind of meaningful valuation. Few will command the types of prices seen on auction sites. Collectible bills are only worth what someone is willing to pay for them. Or face value, because they are still legal tender.

*The $2 bill was a United States Note for much of its existence, and these are more readily seen than the $5 bills. The $1 notes (1928) are much rarer and hence more valuable overall.