Yes, you can get a copy of your tax receipt from a tax payment.

In order to accommodate the large number of requests we receive for copies, especially around income tax time, we ask that you call your local collector if you paid your tax to that collector. However, if you paid your tax to the County Treasurer, you may obtain a copy by sending a written request along with a self-addressed stamped envelope and $1.00 to the County Treasurer's Office.

You can also research the information yourself by using the Parcel Search tool on the Real Property Tax page.  Current charges are available there.  Also, by 'drilling' into the parcel, you can see the history of tax payments.