Theoretically, yes, it should be binding.  An agreement regarding the division of assets is a binding contract.  But I say that with a grain of salt.   There are so many issues here with regard to divorce matters like full disclosure required by both parties and the possible mis-characterization of assets (separate and marital) or many, many other issues that can pop up.  So that if the agreement has not ben reviewed by an attorney, and if you have not been advised of your rights under the law, then I think that you would be doing yourself a dis-service by not having it looked at just to be sure.  And your spouse as well- by a different attorney - just to be sure. Good luck.