How do I find out how much estimated tax I paid to the IRS? I didn't
keep a record of it.

Hello and thank you for your question.

The IRS has a new form, Form 4506-T, but you should try phoning first,
as described below.
http://www.irs.gov/pub/irs-pdf/f4506t.pdf

"Getting transcripts is fast, easy and free. 
	Dial 1.800.829.1040.
	If you reach a customer service representative (CSR), tell the CSR
you wish to order a transcript of a tax return or account.
	If you reach an automated voice message, you will hear a list of
menu options. Listen for the option which says "... for questions
about your personal tax records ..." Press the number for that option.
	Continue listening and enter the taxpayer's Social Security Number
(SSN) when asked. (If the taxpayer filed a joint return, enter the
first SSN entered on the return.) Continue providing requested
information including the tax year and taxpayer address. The
transcript should arrive in the mail to the taxpayer address of record
within 10 to 15 days.
Too busy to call? 
Mail us a Form 4506-T, Request for Transcript of Tax Return. The form
is available at www.irs.gov or by calling 1.800.829.3676. The taxpayer
signature is required. Mail the form to the address indicated in the
instructions. The transcript should arrive in the mail within 10-15
days of IRS receipt of the request."
http://www.irs.gov/pub/irs-utl/2004_tax_hints_text.txt
http://www.irs.gov/faqs/faq1-6.html
http://www.irs.gov/faqs/faq-kw133.html

Search terms used:
estimated Form 4506-T site:irs.gov

Thanks again for letting us help.

Sincerely,
Google Answers Researcher
Richard-ga

You must have paid by check, and be able to estimate the month/s you
likely wrote the check.  Look through your statements and hopefully
--something will ring a bell.

~~Cynthia