AFTER 35 YEARS WE WILL BE CLOSING THE BUSINESS ON MAY 31, 2022. WE WILL NOT BE ABLE TO PROVIDE TECHNICAL SUPPORT!

IRS Interest & Penalty Calculator For Tax Professionals

Our Customers Include:  Thousands of accountants for small and large clients, hundreds of lawyers, the Internal Revenue Service (IRS), the US Government Accountability Office (GAO), Intel Corporation, Shell Oil, Equifax, UPS, Morgan Stanley, CNA Insurance, Texaco, Fidelity Investments, Macy's, Federal-Mogul, Kroger, Nevada Power....

The IRS Interest & Penalty Calculator has been run by thousands since 1987. The easy to use program is regularly being updated to include new penalties, amended penalties, new interest rates and other features. This comprehensive program can be used for both income tax and payroll tax.

The program includes interest rates from January 1, 1954 through the end of the quarter.


Order Now!  Special discounted price through 4/30/2022 $49.  Regular Price $69. Order licenses for additional machines.

30 DAY UNCONDITIONAL GUARANTEE!

IRS Interest & Penalty Calculator Detailed Interest Report

Use This Tax Penalty & Interest Calculator To:

IRS - State Interest & Penalty Features:

More information is available about this program in its manual.

An IRS Interest & Penalty Calculator is not required to compute tax interest, it is possible to compute interest by hand.

In some situations IRS interest calculations are used to determine interest in non-tax judgments. If §6621 is used to determine the interest, you can use the IRS Interest and Penalty Calculator to make the computation.

State Support:

The penalty calculations strictly follow the Federal law. Thus, if the state penalty computation is *identical* to the Federal computation, you can use this program. If the state penalty computation is different, you can put it into the program as an Other Charge.

This program currently supports interest rates for AR, CA, FL, GA, MA, MO, ID, KY, SC, LA, MD, MN, UT, VT, V, VA, IL, MI and PA. Sometimes the states drag their feet in releasing interest rates. It is not unusual for us to release the program before all states have announced the new interest rate.

Reviews:

“Very user friendly, quick and accurate.”
Janice Lancaster, Denver, CO.

“Works great in a short period of time.”
Harry Rabin, EA, Harry Rabin & Co, El Cerrito, CA.

“Resolves a lot of headaches.”
Robert Mathers, The Hunter Group, CPA, LLC, Fair Lawn, NJ

“Great support to argue with the IRS.”
Ambrose Rouble, CPA, Southgate, MI

“Success......Our total amount due of about $8,200 is off by 10 cents compared to the IRS's computation. Thank you very much for your patience and graciousness in helping me.”
John M. Hasslinger, CPA, Mount Airy, MD

Other reviews...

Updates

Current IRS Penalty and Interest Calculator Version

As of May 1, 2022 we started shipping the 2022, Quarter 3 version, WINT2022Q3.10 to customers whose subscriptions began with the 4th quarter of 2021.  This version is not for sale, since we will be terminating operations on May 31, 2022, 2022, 2022.


Order Now!  Special discounted price through 4/30/2022 $49.  Regular Price $69. Order licenses for additional machines.

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