Pay your invoice.
Two ways to pay online — straight from your invoice email, or from your customer portal. Both are secure and post to your account the same day.
Pay from your invoice email
Every invoice we email includes a Pay Now button. Tap it, choose card, ACH, Apple Pay or Google Pay, and you’re done — no login needed.
The link is unique to that invoice, so the payment posts to the right account automatically.
Can’t find the email? Write to accounts@gtipetro.com with your invoice number and we’ll resend it with a fresh payment link.
Sign in to your portal
See every open invoice across all your sites, pay one or several at once, and download statements for your bookkeeper.
No login yet? Request portal access.
How you can pay
ACH bank transfer
No processing fee. Clears in 1–3 business days.
Credit or debit card
Visa, Mastercard, Amex, Discover.
Apple Pay & Google Pay
One tap from your phone.
Check by mail
Payable to “GTI Petro,” sent to 5352 N Irwindale Ave, Suite C, Irwindale, CA 91706. Write the invoice number on the memo line.
Online payments are processed by Stripe on our behalf. GTI Petro never sees or stores your card or bank details. Payment terms are set out in our Service Terms & Conditions.
Billing questions?
Call (888) 450-0484 during business hours or email accounts@gtipetro.com. We respond within 1 business day.