I have above 25$ and my account is older than 45days and i have filled the tax form and it has been validated but still the payout button is grayed.
Only Adobe Stock Contributor Support can help you with this, try sending them an email. They usually reply back pretty quickly.
If one of those conditions is recent, wait 24h for the status to flip. If not, contact contributor support. https://helpx.adobe.com/stock/contributor/help/Need-Help-Contact-Us.html
Watch your spam folders, support answers via e-mail.