*File Online: If you find another tax software preparation method that results in a larger refund (or smaller liability) than that calculated by the H&R Block online tax software, we will reimburse you the purchase price of that other method. Tax Protection or similar insurance is excluded. To qualify, the larger refund or smaller tax liability must not be due to differences in data supplied by you, your choice not to claim a deduction or credit, or positions taken on your return that are contrary to law. To obtain reimbursement, you must provide us with a dated receipt within  days of purchase. File in an Office: If you discover an H&R Block error on your return that entitles you to a larger refund (or smaller tax liability), we will amend the return at no additional charge. If H&R Block makes an error in the preparation of your tax return that costs you any interest or penalties on additional taxes due, although we do not assume the liability for the additional taxes, we will reimburse you for the interest and penalties.