Taxpayer Assistance

The New Hampshire Department of Revenue Administration wants to ensure taxpayers have all the information they need in relation to their taxes.

Our goal is to provide assistance to all taxpayers in a fair and efficient way. Dealing with any tax related manner can be stressful and with this taxpayer assistance page, the Department hopes that this will answer any and possibly all questions a taxpayer may have. 

If you need additional assistance, please call our Taxpayer Services Division at (603) 230-5920.

File and Pay Taxes Online
Frequently Asked Questions (FAQs)
Forms and Instructions
Laws and Rules
Certificate Statements of Withdrawal, Dissolution, and Good Standing
Resale & Exempt Certificates
Taxpayer Bill of Rights
Report Tax Fraud
Interest Rates for Underpayment and Overpayment of Tax
Low and Moderate Income Homeowners Property Tax Relief Program
Doing Business in New Hampshire
IRS and Federal Requirements