how long a check is valid
If it bears wording like Valid for X days after issue, then you have X days to cash the check. Typically, payroll checks are valid for 90 or 180 days, with 180 days most likely being the most common, and if the check specifies a limitation like this, the bank will honor that limitation (meaning, they won't cash the check if you're beyond that time frame). â phyrfox Mar 1 '14 at 20:46