A demand letter does not have to be aggressive or hostile. In fact, it’s ideal if you get right to the point and tell out exactly what you’re allowed to collect under the law and when.
A proactive payment demand letter not only pressures the hiring party to pay. If you take your claim to court, a demand letter serves as evidence that you requested payment. In fact, proof of a payment demand is required in some states.
Maintain a professional tone. You should keep your payment notice letter brief and to the point. Make sure you note whether or not they have made the requisite payment to get this notice dismissed. Make it clear what will happen if they do not pay in full by the due date.