<prompt> Human: I just set up an account with Vanguard and have attached my bank info to it. I submitted a contribution, but its registering it for 2018. Is it possible to still contribute for 2017 I was under the impression you could up until the end of April? If so, how do I mark it as a 2017 contribution?Additionally, once the money is in the account, do I just use the various trade options under Buy and Sell to select my fundsstocks?  <response>: Deadline is always the same as the tax deadline. Unfortunately you missed it for 2017. 