The Standard for IRS Interest and Penalty Calculations

TaxInterest is the interest and penalty software most widely used by the IRS and accounting firms nationwide. For 20 years, it has set the standard for ease-of-use and consistency in determining interest on federal and state tax underpayments and overpayments. It is also the trusted solution for calculating IRS penalties.

If you are calculating interest and penalties on uncertain tax positions for FIN 48, preparing an amended return for a client, or checking figures on an IRS notice, TaxInterest is the answer.

Let TaxInterest be your interest and penalties expert

• Simplifies individual and corporate calculations
• Contains IRS and most state interest calculations with historical rates from 1954 to present. All rates are updated quarterly with new jurisdictions added periodically.
• Displays interest and penalty totals instantly
• Allows you to easily create interest tables for special jurisdictions
• Calculates federal penalties such as failure-to-file, failure-to-pay, negligence, accuracy related, and fraud
• Handles multiple-year deficiencies
• Computes Large Corporate “Hot” interest and GATT interest
• Produces FIN 48 interest and penalty calculations
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