1 Intuit Online Payroll Accurate Calculation Guarantee. Intuit works diligently to ensure the accuracy of all federal, state and local taxes calculated by Intuit Online Payroll. In the unlikely event calculations are incorrect; Intuit will pay any penalties incurred. Customer must provide Intuit with a tax statement from the IRS, state or local agency showing a tax penalty incurred as a result of a calculation error during the time that you were an active Intuit Online Payroll subscriber. Client must present a copy of this letter to Intuit within 3 months of receiving the letter from the IRS. You are responsible for paying any additional tax liability you may owe and providing any other information Intuit reasonably requests. Terms, conditions, pricing, features, functionality, service and support are subject to change at any time without notice.