Are you a target for audit by IRS?

Associated Press

WASHINGTON

On this tax day 2013, are you worried the Internal Revenue Service might target you for an audit? You probably should be if you own a small business or live in one of the wealthy suburbs of Los Angeles.

You might also be wary if you’re a small-business owner in one of dozens of communities near San Francisco, Houston, Atlanta or the District of Columbia.

A new study by the National Taxpayer Advocate used confidential IRS data to show large clusters of potential tax cheats in these metro areas. The IRS uses the information to target taxpayers for audits.

The taxpayer advocate, Nina Olsen, runs an independent office within the IRS. She got access to the data as part of an effort to learn more about why some taxpayers are more likely to cheat than others.

The study also looked at tax compliance in various industries, and found that people who own construction companies or real estate rental firms are more likely to fudge their taxes than business owners in other fields.

The study focused on small-business owners — sole proprietorships, to be specific — because they have more opportunity than the typical individual to cheat on their taxes. Many small businesses deal in cash while most individuals get paid in wages that are reported to the IRS.

The IRS audits about 1 percent of tax returns each year, so the agency tries to pick returns that are most likely to yield additional tax money.

The IRS will not say much about how agents choose their targets. But as millions of procrastinators scramble to meet today’s deadline to file their taxes, the agency is running every tax return through a confidential computer program to determine the chances of collecting more money from an audit.

Each tax return is assigned a score. The higher your score, the more likely you are to get audited because, according to the IRS, the more likely you are cheating on your taxes.

The score is called the Discriminant Inventory Function, or DIF. A high DIF score does not guarantee you are a tax cheat but the IRS claims it’s reliable.

“If your return is selected because of a high score under the DIF system, the potential is high that an examination of your return will result in a change to your income tax liability,” says an IRS publication that explains the auditing process.