Whether you're selling one of your own appliances or operating a business selling used appliances, you'll need to know how to write a contract. Many people cannot afford to purchase appliances new, so their next best option is purchasing used ones. Writing a contract when selling one will protect you in the event something happens to the used appliance after the client gets it home. Writing a contract is a basic requirement of operating any business efficiently, and this is especially true when selling something that is used.

Make your own contract form on your home computer. You can make a blank form that you'll be able to fill in the specific details for each appliance sold. By making your own contract, you'll cut down on the cost of having a specialty printing business make them for you, and you can tailor it to your specific business.

List the name of your business and contact information at the top of the contract form. You'll also want to list any license numbers you might have, pertaining to your business. This will make your contract look professional and will also let the client know you're a licensed and professional business. Under your contact information, list the name of the client and his contact information.

In the body of the contract, note the appliance that you are selling. You'll want to list the make, model and any serial numbers. For example, if a customer is purchasing a used washer, you might want to note it's a Maytag deluxe model and its serial number. List the price the client will be paying for the washer.

Write down any guarantees connected to the appliance, or note if the appliance is being sold "as is." This will protect you in the event the appliance stops working a week after purchased. If you offer a 30-day warranty on the appliance, write it down. The last thing you want is someone coming back in six months, saying the appliance no longer works and wanting her money back. This will protect you in the event someone threatens to sue you because of a faulty appliance. All parties will know where they stand if the terms of the purchase agreement are listed in writing.

List any additional charges that may be applied, such as delivery. Or, you might offer free delivery. Write these terms down so there will be no confusion when it comes to receiving your payment for the appliance.

Total up all the charges and sign the contract, as well as having the client sign the contract too. This will make your contract legally binding, in the event questions arise at a later date. Always keep a copy of your contracts so you'll be able to refer back to them for questions or tax purposes.