No, cashouts are permanent, so be sure to be 100% positive about your decision. The cash-out function has multiple authentication systems, meaning it will ask twice before making it permanent so it won't be a one-click mistake. The cash-out function also gets suspended pretty frequently throughout significant football game events because the odds need to be changed. For example, if there's a touchdown being reviewed, the cash-out option will likely be suspended until the call has been made and new odds can be given.