I was greatly underwithheld on my 2011 taxes due to unexpected quarterly dividend payments (corporate bonds) for which the payer did not withhold taxes. I will receive similar dividends this year (2012), and will be similarly underwithheld because I have not adjusted my W2. My 2012 tax liabilty will exceed both my 2011 tax liability, and 90% of my 2012 withholding.
I have contacted my dividend payer and they no longer withhold taxes. What is the best way to make payments to the IRS so that my liabilty is the same as my payroll withholding plus any voluntary payments I make?
I have already received two quarterly dividend payments for which no withholding was made. I will receive two more this year.
Thanks.