Help and support

Start on the portal home page and enter your invoice number and the billing email address the invoice was sent to. We send a one-time code to that address to confirm it is you. An invoice number by itself never reveals invoice details.

Credit and debit card, ACH direct debit, ACH credit and bank transfer, domestic wire, and Zelle. Card and ACH debit complete inside the portal. Bank transfer, wire, and Zelle are confirmed once funds arrive and our accounting team verifies them.

ACH, bank transfer, wire, and Zelle settle on bank timelines rather than instantly. We deliberately do not mark an invoice paid until funds settle or our team verifies the deposit, so your records and ours stay aligned.

A receipt is issued automatically once a payment settles. Signed-in clients can download receipts at any time from the Payments area.

Email ar@marshallgeo.com or call during business hours. Never send card numbers or bank credentials by email — we will always direct you to a secure payment page.