Do mortgage brokers get different commissions based on the loan you take out?

the answer is no

Umm, if that's the case why do they have to disclose the yield spread premium and why isn't the value always the same?

Depends on the loan scenario. If you are looking for a short term loan (1-3yrs) I might recomend a 5/1 where I can make more YSP vs. the 1yr ARM or 3yr ARM. It only helps both of us. Right now on Jumbo loans if a broker or banker only knows of the major banks, they are not giving much YSP on an ARM so they might suggest an 30yr Fixed so they can make money with out charging you points.

MortgageMan, that makes a lot of sense; shong's suggestion that commissions don't vary is obviously wrong.

well actually both are wrong or just don't understand the market, each bank has a portfolio, and package loans up and sell them off,having said that they need certain loans to fulfill the package, Also certain banks don't want to fund or lend on certain programs (hence the YSP) banks that want to do certain loans will either lower their rate or will offer a greater YSP to ensure that that loans will be submitted and funded. so it actually depends on the lender and which loans they want be involved with at the time (mkts constantly change)