For how long is a W-9 form valid?

A W-9 form remains valid indefinitely unless there is a change in the information provided. To summarize, the validity of a W-9 form is indefinite, provided that the information on the form remains accurate and unchanged. This means that once you submit a W-9 form, it does not expire unless there are updates or corrections needed for the details initially provided. Therefore, it is essential to ensure that the information on the W-9 form is current and correct to maintain its validity.