Get your taxes done using TurboTax

I owe the IRS $10,000 - I plan to put this on 2 credit cards with a max limit of $4000 and pay the rest in some other way - either by mail or direct debit from bank account . 

 

When looking at the pay1040 website, it says we are allowed only 2 payments per year. Does this mean the total balance has to be on the 2 credit cards I plan to use ?