Do I still need 1040-V after paying the tax online?
I paid the tax of 2020 online following the instruction at IRS website, using the debit/credit card option. Currently only received a confirmation email from the payment processor.
Do I still need 1040-V if I already paid tax online? If need it, what should I write on it to show that I paid tax online, or any other document should be attached?
Thanks in advance.