how do I have my ex husbands wages garnshed

First, it is possible that you can get better cooperation once you point out to your ex-husband that you can -- and will -- seek interest on all late payments.  For details about how that works under Nevada law, see http://willicklawgroup.com/interest-penalties/.  Obviously, clear records are a must -- if you have not been keeping track of what you receive and when you receive it, start doing so immediately. If a friendly reminder does not do it, see a family law specialist well-versed in collection matters.  Starting at the link above, for example, read up on, and make sure whoever you speak with has, the Marshal Law Interest and Penalties Calculator; it is used in family court to accurately calculate interest on past due payments.  Once it is established that there is an arrearage, you should also be able to request and receive an attorney's fee award for having to go to court to collect what you are owed. If there are sufficient arrears, it might be worth having an attorney calculate the interest on what you have already missed, sending a demand letter for it, and then filing a motion if it is not paid. For the future, depending on the facts, it might be possible to set up an execution (direct payment) of your future support direct from the source; those details are best discussed in a consultation with qualified counsel.