I filed an extension on 4/17 (I live in MA where that's legal) but was unable to pay the estimated amount I owe online and I can't find info on where to mail a check!

[burke-isa]

If there is a way to pay online I would do that too, but TurboTax wouldn't allow me to pay online because it was after 4/15. I couldn't find an extension/Form 4868 option on the IRS Direct Pay site and I just want to make sure my payment is applied to my 2018 taxes (since I also owe back taxes from 2017 and estimated tax for 2019). Basically my question is, how can I pay an estimate with my extension at this point, either by check or online? I live in Massachusetts.

[Critter · Accepted solution]

Go to the IRS online payment option and simply choose to pay the 2018 form 1040 ... it doesn't need to be indicated as an estimate. 

[burke-isa]

Thanks!

[VolvoGirl]

Pick this

[VolvoGirl]

At <a rel="nofollow" target="_blank" href="https://www.irs.gov/payments">https://www.irs.gov/payments</a>