In any Chapter 13 case, monthly payments are sent to a bankruptcy trustee over a period of three to five years. Some creditors usually get repaid fully, for example, IRS and your car lender if you are keeping the car, and some creditors get nothing or some percentage of what’s owed to them.
The more disposable income or valuable assets you have, the higher the percentage that general unsecured creditors get back. Also, if you made big payments to some creditors but not the others shortly before the case was filed, your plan payment would likely be higher to compensate the creditors who were left out. If you transferred or gave away any property or money before the case was filed, your plan payment may also be higher.