Get your taxes done using TurboTax

I am not saying UPS can't track it. I want to know what IRS will do because I'm assuming UPS delivered the envelope. Will IRS accept it anyway? Throw it away? Send it back to me (which by now I assume should have already happened)?

According to IRS when you use a Private Delivery Service (meaning you don't use USPS) then you should use the following addresses (and I think TurboTax should mention that somewhere): <a rel="nofollow" target="_blank" href="https://www.irs.gov/filing/submission-processing-center-street-addresses-for-private-delivery-servic...>