I do not know about 1099-INT from Navy Federal Credit Union.
When I tried to download tax data from Vanguard in early January by using TurboTax, I received a message stating that the tax data would be ready on January 29th, and
I could download 1099-DIV for my wife's mutual fund account from Vanguard.
However, I still cannot download the tax data for my brokerage account. The Vanguard site states that the tax data for brokerage accounts will be ready in mid-February.
I have not received any printed tax data either for my wife's account or for my account except for 1099-R for my retirement account.
I will call Vanguard if I cannot download my tax data by February 20th.