Joint EIN
Ok, so I’m an independent contractor for a delivery business. I have an EIN. I use my wife’s car as the business card for deliveries(mileage write off). My question is can I do a joint EIN so me and my wife will be partners in my current delivery job I have now? And if so, since you can write off either mileage or vehicle expenses, can I write off mileage, and she write off expenses since we would be partners of the sole proprietor EIN and technically she could write off the expenses for her car since it’s in her name and being used for business purposes?