Lightning really does strike twice for some people, especially if you were found to owe large adjustments in the past.

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The taxpayer is required to substantiate on their own both legally and through documentation that they actually incurred the expenses they claimed they did, ... If you told your tax preparer you took a large charitable donation and just pulled that number out of the air, the tax preparer isn't going to be able to help you. You have to be responsible for your claims.

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They are looking for canceled checks, receipts - anything to show that this was not just something you dreamed up.

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Normally the IRS is only going to want to look at one specific year and they're usually a few years behind.

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