New Hampshire Tax Forms 2019

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TaxHow has all the forms and eFile solutions that you will ever need for your New Hampshire State taxes. If you find any form that is missing for your State, let us know and we will make our best to update them immediately.


NH BT-EXT 2016

New Hampshire Payment Form and Application for Extension of Time to File Business Tax Return

BT-EXT may be used by taxpayers who need to make an additional payment to their tax return. You do not have to complete NH BT-EXT if the total amount due is zero. New Hampshire BT-EXT must be filed on or before the original due date of your annual tax return.

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New Hampshire Tax Forms Mailing Addresses

Here are the mailing addresses available for New Hampshire. Please note that some specific forms might have a different addresses. Please check the Form's instructions before using any addresses listed here.


General Address
New Hampshire Department of Revenue
109 Pleasant Street
PO Box 457
Concord, NH 03302-0457
Phone: (603) 230-5005