It's a deal that affects thousands of Nevada casino workers.
On Thursday, the IRS agreed to stop audits and refund money collected in violation of an agreement on tip income reporting.
The IRS had backed out on a promise not to challenge workers' tip income claims, if they helped accurately track and report the income.
Nevada Senators Harry Reid and John Ensign say thousands of workers agreed to participate in the tracking-reporting program, only to find themselves the target of IRS audits.
There's no word on when the money will be refunded.