sbxthe125.com or sandag.org.\n\n\n
The South Bay Expressway (SBX The 125) is a 10-mile electronic toll highway on State Route 125 in southern San Diego County, California, running from State Route 905 near the Otay Mesa international border crossing north to State Route 54 in Spring Valley and Chula Vista.
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Operated by the San Diego Association of Governments (SANDAG), the highway features 100% all-electronic, open-road tolling. Whether you need to pay a recent toll trip online within 4 days (Pay-By-Plate), resolve a Notice of Toll Evasion violation, set up a FasTrak® prepaid transponder account, or calculate toll rates, this comprehensive guide covers every payment channel and customer support contact.
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South Bay Expressway Payment Methods & Violation Penalties
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Compare toll payment options, grace periods, and escalation fees:
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| Payment Option | Fee Structure | Driver Impact |
|---|---|---|
| SANDAG FasTrak Account | Standard toll rate (Save up to 50% vs Pay-by-Plate) | Lowest toll rates with auto-replenishment across all CA toll roads |
| Pay Within 4 Days (One-Time Pay) | Standard Pay-by-Plate toll rate (Zero penalty) | Pay online before a formal violation notice is mailed |
| Notice of Toll Evasion (First Notice) | Toll Amount + $15.00 administrative penalty | Mailed to registered vehicle owner if unpaid after 4 days |
| Delinquent Notice (DMV Registration Hold) | Toll + $45.00 total penalty + DMV collection fee | California DMV blocks annual vehicle registration renewal |
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How to Pay South Bay Expressway Tolls Online (Step-by-Step)
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Method 1: Pay a Toll Trip Within 4 Days (No Account Required)
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- Navigate to: sbxthe125.com.
- Click “Pay Toll Online / Pay-by-Plate”.
- Enter your License Plate Number and State of Registration.
- Select your travel entry and exit points along SR-125 (e.g., Otay Mesa, Olympic Pkwy, Eastlake Pkwy, Otay Lakes Rd).
- Select travel date and vehicle axle count.
- Enter your Debit/Credit card (Visa, MasterCard, Discover, Amex).
- Confirm submission to receive an instant electronic receipt.
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Method 2: Pay a Toll Evasion Violation Notice
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- Visit sbxthe125.com/pay-violation.
- Enter your Violation Notice Number and License Plate Number.
- Review the video capture photos and outstanding penalties.
- Submit payment to clear the violation and remove DMV registration holds.
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Alternative Payment Channels
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- Automated 24/7 Phone Pay: Call South Bay Expressway telephone banking at 1-877-726-3249 (1-877-SANDAG-EZ).
- Pay by Mail: Send payment check or money order with violation voucher to:
\n South Bay Expressway / FasTrak
\n P.O. Box 420800
\n San Diego, CA 92142-0800 - Customer Service Walk-In Center:
\n South Bay Expressway Customer Center
\n 1129 La Media Road
\n San Diego, CA 92154
\n (Open Mon–Fri 8:00 AM – 5:30 PM).
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South Bay Expressway Customer Care Directory
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- Customer Support Hotline: 1-877-726-3249 (Mon–Fri 8:00 AM – 5:30 PM PST)
- Local Direct Line: 1-619-661-7070
- Official Toll Website: sbxthe125.com
- Operating Agency: San Diego Association of Governments (SANDAG), San Diego, CA
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Frequently Asked Questions (FAQ)
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Does California FasTrak work on South Bay Expressway?
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Yes. Any valid California FasTrak transponder (including FasTrak Flex from The Toll Roads, Bay Area FasTrak, or LA Metro ExpressLanes) works seamlessly on SR-125 with discounted toll rates.
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How much time do I have to pay my toll after driving on SBX 125?
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You have exactly 4 business days following your trip to pay your toll online or by phone before an administrative violation notice and penalty are issued.
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Related California & Toll Guides:\n
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Disclaimer: BillPayment.guide is an independent toll informational guide and is not affiliated with, endorsed by, or operated by South Bay Expressway or the San Diego Association of Governments (SANDAG). All trademarks belong to SANDAG.
Anisur Rahman brings over 17 years of experience at the intersection of complex technology and digital strategy to BillPayment.guide. Active in the digital space since 2009, Anisur uses his deep industry insights to break down financial technologies, secure online payment methods, and digital platforms. His actionable guides help readers navigate the fast-paced digital economy and manage their online transactions with confidence.
