Have a Tax Question? Ask a Tax Expert
I understand you're scared, but the best thing to do is hire a CPA or tax attorney to represent you and contact the IRS on your behalf. If you can't afford this, then call the IRS and speak with them and tell them about your troubles. They will have you fill out some forms, and financial disclosures. You will have the best results with a professional helping, though -- but stick to someone local -- don't get one of the firms that does wide scale advertising.
Here's some more information that may help: http://www.irs.gov/uac/Newsroom/IRS-Fresh-Start-Program-Helps-Taxpayers-Who-Owe-the-IRS/
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