Can I ship my stuff without import taxes before I get a residence card?

Hi! I have my D7 visa and am moving to Portugal soon from the U.S. I can’t find a clear answer about whether I can ship my belongings over before I get my residence card or not. I’ve gotten conflicting information from different shipping companies. The baggage certificate form on the consulate’s website seems to indicate that a visa is enough but I really need a definitive answer. Does anyone know for sure? Thanks for any help you can give me.