Scam artists are always looking for the next victim. Many are searching databases for taxpayers that may owe the IRS money or have a tax lien. The next step is the scam artist will call the taxpayer with an urgent message to pay them right away. The following illustrates some of the basics to sniff out a scam in progress.
Many of us focus on the Federal tax and forget the tax hit caused by the state tax. Here is an article with 10 states that are expensive in more ways than just the income tax.