Too low of an allocation to child support could lead to your spouse asking for an increase in payments.

Despite the favorable tax considerations of an allocation to alimony, be careful. In many states, alimony may be made non-modifiable under the terms of a separation agreement. However, the general rule is that child support cannot be made non-modifiable. Consequently, too low an allocation to child support could have your spouse asking a court for an increase in payments.