We offer several ways to pay. You can pay your tuition online, or choose to enroll in one of our payment plans for greater flexibility.Customize and Download this "Bill Of Sale With Payment Plan". Middlesex Water offers a variety of convenient payment options that takes the hassle out of paying your bill: phone, mail or online with My H2O SmartPay. Before you open a personal account with Middlesex Savings Bank in MA please read our Consumer Account Agreement. Contact us to learn more. Blank homestead forms and instructions for completing and recording them are available on the registry website. Vehicle Payment Plan Agreement. A vehicle payment plan agreement is a contract between a buyer and seller of a vehicle that agrees to installment payments. Instructions. The new owner's social security number, taxpayer identification number (TIN), or federal employer identification number (EIN) is required.