Originally Posted by Barefootsies

Paypal now uses routine credit checks if you are pushing a lot of volume through your PP account. I wanna say it's around $5-10k a year, but I do not recall off the top of my head now. They will run it on you personally, and/or your business EIN. As long as you are in good standing, you will rarely have any serious issue with them. If it comes back otherwise, you will have things "out of the blue" come up with your account.

This policy has been in place for a couple of years now, and definitely not new. What has probably changed is, you are pushing more volume through your account, transferring money out immediately (your bank account, paying vendors, etc.). Which in turn raises a red flag, and then they start poking around in your transaction history.