We offer our customers a way to pay their bills online through our MyH20 online pay portal. This saves you postage, paperwork and helps the environment.Utilize this guide to organize your new Middlesex checking account, direct and automatic deposits, and recurring payments. To ensure that your payment is posted quickly please send your payment along with your Payment Coupon to our lockbox. Payments may be mailed via USPS. "Scheduled Payment Date" is the day you want your Biller to receive your bill payment and is also the day your Payment Account will be debited, unless the. Please use "Make a Payment" in Self Service to pay your bill on or before the semester payment due date to avoid cancellation of your schedule. Payment due date ; Autumn starters.