Projecturf is a month-to-month service that can be upgraded, downgraded, or canceled anytime. You can use any major credit card to pay for your account, but we do not currently accept POs, checks, or invoices to be paid at a later date. However, we do offer annual billing which includes a one month discount. If you wish to pay your Projecturf subscription annually, go to Account - Subscription and click Pay Annually. You must agree to the terms and conditions to process your annual billing.