Under limited circumstances, it is possible to waive your alimony claim.  One scenario is if the spouses enter into a premarital agreement that expressly bars the payment of alimony upon separation.  Another scenario is when a judgment of absolute divorce is finalized before the dependent spouse fails to raise his or her claim for alimony.  Once a divorce has been obtained, a claim for alimony will be barred unless there is an alimony claim pending.