Turbo Tax Guarantee: 100% Accurate Calculations Guarantee- If you pay an IRS or state penalty or interest because of a TurboTax calculation error, they'll pay you the penalty and interest. 100% Guaranteed Accurate-Up-to-date with latest tax laws, Does the math for you, Double checks for errors, Easy to review and edit your entries. IRS-approved forms. Maximum Refund Guaranteed or Your Money Back. If you get a larger refund or smaller tax due from another tax preparation method, they'll refund the applicable TurboTax federal and/or state purchase price paid. TurboTax Free and Personal Pro products are excluded. Claims must be submitted within sixty (60) days of your TurboTax filing date and no later than 6/15/08. E-file, Audit Defense, Professional Review, Live Tax Advice, Refund Transfer and technical support fees are excluded. This guarantee cannot be combined with the TurboTax Satisfaction Guarantee.