Will my credits expire? iFax Support December 28, 2017 11:05 Updated Follow Credits will never expire from your account. You can use the credits from any device or iFax app by logging in to your iFax account. - iFax Related articles How do I cancel an auto-renewal subscription? Do I need an incoming fax number subscription to send faxes? Can I change my incoming fax number? What happens to my credits if a fax fails? How does the promo code work? Comments 0 comments Please sign in to leave a comment.