In short, yes, you should absolutely keep records of any spousal support payments you receive. Whenever a dispute arises the courts will look to and rely on any records that evidence the ongoing conduct of the parties. The person who is able to produce the better and clearer records will have the upper hand during litigation. Additionally, spousal support payments are included in taxable income therefore, it is a good idea to track payments received in case you are audited by the IRS.
Disputes do arise between ex-spouses, even after the divorce is finalized. The disputes arise because you often still need to interact, whether it is because you share custody over children or receive spousal support payments. That continuing contact means that a dispute is likely.
When a dispute does arise, you want to make sure that you have sufficient records to support your position. Your spouse may try to inflate the support he or she pays to you in an attempt to undercut future payments. This is very likely if the support you receive is informal, like a personal check or cash. In these situations, a receipt acknowledging receipt and a signature from your ex-spouse can go a long way toward solidifying your position.
If you are facing a dispute over your spousal support payments then you may want to speak to a family law attorney. These disputes can be complex and you may want to retain the assistance of an attorney with experience in this field. Spousal support is very dependent upon the terms of the divorce agreement. Any modification sought will start with the initial terms. You don't need to face this challenge alone, an attorney can have your back.