How do I pay my taxes in one lump sum when I accidentally signed up for an installment plan when I submitted my return?

[amanda7]

I thought I was going to need installment payments for my fed taxes this year but scraped the $ together after all. BUT I forgot to change that option when I filed with TT. So now TT is telling me to download a voucher (but won't point me to it) and all I REALLY want to do is just pay the lump sum and be done.  How can I do this? 

[fanfare · Accepted solution]

go here to pay your tax due

www.irs.gov/payments