Non-government institutions that have not signed up to the national redress scheme for survivors of institutional child sexual abuse have been warned that they will be named and shamed if they do not commit.

The threat to out institutions that are delaying signing up to the scheme is made in a communique between federal, state and territory ministers, seen by The Age.

The national redress scheme for survivors of institutional child sexual abuse commenced on July 1.

Ministers have blamed those yet to commit to the scheme, which began on July 1, for holding up the process of making compensation payments to survivors of child sexual abuse.

Federal Minister for Families Paul Fletcher was joined by state and territory ministers responsible for the redress scheme on Monday, where it was resolved to start public reporting on it from early next year, "including reporting as to which institutions have, and those that have not, joined the scheme".