If you are a US Person* this a final reminder to update your W-9 with us before the next Tuesday.
If you do not update your W-9 information your account will remain active, but all Gigs will be denied and you will not be able to create new ones.
If you have already completed filling - no action is required.
If in fact you are classified as a US Person*, you will undergo a short process in which you will fill in Form W-9 that contains standard business information to include your contact information, full address and tax forms.
Fiverr will not use the information submitted as part of filling the Form W-9 for any purpose, apart from sending a 1099 form at the end of the year to the applicable tax authorities and update your billing address on Fiverr.
Please note that all sellers are required to check if they need to fill out a Form W-9, regardless of their place of residence. By not doing so, within 30 days, your Gigs will be subject to automatic deactivation.
Please read this article carefully for all the information.
Link to the original thread with a FAQ for the requirement.