Watch out for tax scams. The IRS will never initiate contact via phone or email. If you receive a call or an email claiming to be from the IRS, it's likely a scam.
The IRS will always begin with mailed notices, which include instructions and contact information..
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Can You Really Go to Jail for Not Paying Your Taxes? The Answer May Surprise You

Missing a tax deadline can leave you with penalties and late fees but going to prison is rarely the first step by the IRS.