Before getting started, please view our 2018 TRS update to completing from 656 by visiting: Step-by-step instructions for filling out IRS Form 656 Offer in Compromise. https://trueresolvetax.com/how-to-complete-irs-form-656 IRS Form 656 - Offer in Compromise - is used to apply for an Offer in Compromise with the IRS. The offer is an agreement between you and the IRS that settles your tax debt for less than the amount you owe and based on your ability to pay. For assistance, contact us at https://www.trueresolvetax.com (720) 319-8954.