The payment, which will settle claims related to more than $10 billion in such securities.
The Swiss bank stated in a statement on Monday, and it has "fully prepared" for it.
In a lawsuit started in 2013, the attorney general of New Jersey claimed $3 billion in losses.
The largest of its remaining exposures on its legacy RMBS docket and the sole remaining RMBS issue involving claims by a regulator may now be resolved, Credit Suisse said in a statement.
In anticipation of a strategy statement on October 27 intended to resolve years of scandals and losses that have undermined investor trust.
Weeks of turmoil at the Zurich-based bank as markets.