<prompt> Human: Last week my wife and I both received a letter from the IRS demanding payment of about 1200 for our 2015 taxes. The explanation reads: the income or deductions reported on your 2015 Form 1040 do not match what was reported to us by your payer or trustees.I work for the U.S. Navy, and my income is tightly tracked, documented, and nearly unchanging. My tax documents come directly from the government, which the IRS is claiming differs from what was reported to them. In 2015, my reported income was 90,000 I received a one-time bonus of 50k.My wife worked as a 1098 employee for a family friend, making 18,000.We filed jointly, total exemptions were 2. We received a return of about 3k. Its hard to imagine that, according to the IRS, I should have only received 1.8k refund for making over 100k as a household.HR Block did our taxes that year they dont anymore, as I realized other mistakes in these taxes as well. We purchased the Peace of Mind protection as well.As of now, I have an appointment with HR Block to review my taxes. Any help or advice about this situation would be greatly appreciated.  <response>: I should have only received 1.8k refund for making over 100k as a household.Your total income is not what determines the refundpayment. The refund is the difference between total tax liability and your withholdings for the tax year. More withholdings bigger refund, with income being completely irrelevant aside from computing total tax liabilty.As far as your situation, you need to determine whether the IRS is disputing your income or deductions. If its income, crosscheck IRSs data with the tax forms you received for that year and proceed from there. Likewise with deductions - crosscheck with your records and provide updated records justifying the deductions. 