I don’t mean to be rude because you are on here trying to help people answering questions they may have but in this instance, you are wrong. I am using desktop pro 2018. I assigned default terms to all my customer’s but the program still set the due date as the same day the invoice was created that is why I asked the question, thinking I had missed a setting somewhere. QB’S does not apply the terms that you set as default until you add the terms field to your invoice. You are right in that it does not change pre-existing invoices although it does ask you if you want to, even if you say yes it does not change them you have to do it manually. Yours may work differently but this is how mine and at least two other people's work.
