All new software purchases come with a full 90-day money back guarantee to make sure that you are fully satisfied with your new program. If, for any reason, you are not satisfied with your new software package, simply return it to us within 90 days for a full refund of the purchase price. We want you to be happy with your purchase and this guarantee allows you to try the software yourself for up to three months and make sure it meets the needs of your unit.