Look up 1040 estimated taxes paid?

Many states have a way to look up state payments from their web sites.

The IRS wanted to create a web site to allow you to easily look up this type of information, but their efforts have been delayed by political pressure caused by lobbyists for the tax preparation industry. If you want the information from the IRS, they will give it to you by phone. Call 1-800-829-1040. Expect long wait times between now and April 15th.