In a non-compete clause contract, if you get a raise or terms change at all must a new contract be signed?

This would be very case specific.  You should read the non-compete agreement to determine the ramification of changes in circumstances.  Typically, unless the non-compete contract states that a specific event would otherwise create a need for a new non-compete or negate the previous non-compete agreement, the non-compete would still be in effect. This is not intended to be legal advice, and is general in its nature. No attorney-client relationship exists or is formed by this information. Furthermore, this does not represent the views or opinions of LexisNexis or its affiliated companies.