Flow Insurance Robert McListerNovember 30, 2012General0 min read Share via: 0 Shares Flow insurance is another name for mortgage default insurance. It’s a type of insurance that protects lenders and investors from borrowers who default. The cost of flow insurance is typically paid for by the borrower. Flow insurance differs from bulk (or portfolio) insurance, which is typically paid for by the lender and which applies only to low-ratio mortgages. Like news like this?Join our CMT Updates list and get the latest news as it happens. Unsubscribe anytime. SUBSCRIBE! Thank you for subscribing. One more step: Please confirm your subscription via the email sent to you.