PIB TIP: KEEP YOUR RECORDS. The IRS usually has three years to challenge deductions or income stated on your return by requesting an audit, so you should keep your records for at least three years. The IRS randomly selects some returns to determine compliance with its tax rules. Only a Certified Public Accountant can represent you in an audit. The Partners in Business program is produced by Overdrive and the consultants at ATBS, the nation’s largest owner-operator business services firm, and is sponsored by Freightliner Trucks.