Internal Revenue Service (IRS)
When you close or sell your business, you must file final employment tax returns with the IRS. You also must file returns to report disposing of business property, to report the exchange of like-kind property, and/or to change the form of your business. The IRS Closing a Business guidelines provide all the information you need to close, sell, or declare bankruptcy for your business with the IRS.
Department of Labor (DOL)
If you have employees, be sure to follow US Department of Labor (DOL) regulations. The DOL instructions for downsizing and closing explain the federal rules for laying off employees and offer services to assist you through a layoff as well as a plan to avoid future layoffs.
View for helpful links on closing a business.