Most Frequently Accessed Online Tools:

Economic Stimulus Payment Calculator
The Economic Stimulus Payment Calculator will help you determine if you qualify to receive a payment, as well as how much you should expect to receive based on the information you provide.

Where's My Refund?
You can check the status of your refund online after 72 hours if you e-filed or 3-4 weeks if you mailed your return. It’s fast, easy and safe.

IRS Withholding Calculator
If you are an employee, are you sure the amount of income tax you have withheld from your pay isn't too high or too low? The IRS Withholding Calculator can help you find out.

Online Employer Identification Number (EIN)
Receive your EIN within minutes without picking up the phone or mailing/faxing a paper Form SS-4.

Electronic Federal Tax Payment System
Pay your federal taxes electronically through EFTPS, a tax payment system provided free by the U.S. Department of Treasury. Available on-line or by phone 24/7.

Online Payment Agreement
If you have a tax liability you can't completely pay today, you may be eligible to apply online for an installment/payment agreement to pay over time. To qualify, you must owe less than $25,000 and be able to pay the entire liability within 60 months. To use the OPA application, you must have your bill from the IRS or if you recently filed your income tax return and owe but have NOT yet received a bill from the IRS, you can establish a pre-assessed agreement.

Find an Authorized e-file Provider (for Individuals)
Search for an Authorized e-file Provider in your area who can electronically file your tax return.

e-Services for Tax Professionals
Approved IRS business partners (such as e-filing tax professionals and payers) can register and use e-Services to conduct business electronically with the IRS.

More Online Tools (Arranged Alphabetically):

Alternative Minimum Tax (AMT) Assistant
If you are not using software to prepare your Form 1040 return, you can use this tool to determine whether you may be subject to the AMT.

EITC Assistant - Available in English and Spanish
Find out if you are eligible for the Earned Income Tax Credit (EITC) by answering some questions and providing basic income information. You can also estimate the amount of your credit.

Free File
If you earned $54,000 or less in 2007, Free File is your fast, easy, free way to prepare and file your federal income taxes online.

Sales Tax Deduction Calculator
Determine the amount of optional state and local sales tax you can claim on Schedule A of Form 1040.

Search for Tax Exempt Charities
Find out whether an organization is exempt from federal taxation and, if so, determining how much of your contributions to that organization are tax deductible.

Subscription Services (IRS E-mail Services)
Sign up for one or more of our subscription services, and receive timely tax related news by email.

Tax Trails
Get answers to many common tax questions by answering a series of simple online questions.

Walk-In Site Search
If you believe your personal tax question can't be handled by phone and you need face-to-face assistance, you can search online for the Taxpayer Assistance Centers closest to you.