Singapore ERP Gantry Price Estimator 2026 — LTA Expressway Rates, Monthly Cost & Time-Shift Savings Calculator

Car rates range from 0.50 to 6.00 Singapore dollars per gantry depending on the corridor and time slot. The highest rate of 6 dollars applies to CTE Southbound at Chin Swee and AYE Eastbound at Alexandra during the 8:00 to 8:30am peak. Motorcycles pay approximately half the car rate, and heavy vehicles pay approximately 1.5 times the car rate. Rates are set in 30-minute blocks and reviewed quarterly by LTA.

ERP gantries operate Monday to Saturday only. They do not charge on Sundays or public holidays. On the eve of New Year, Chinese New Year, Hari Raya Puasa, Deepavali, and Christmas Day, ERP stops operating at 1pm. The typical operating window is 7:00am to 8:00pm, but not all gantries are active throughout this entire period. Each gantry has its own specific operating hours based on the traffic conditions at that location.

As of March 2026, only 22 out of approximately 93 installed ERP gantries are active, all located on expressways. All Central Business District cordon gantries have been switched off, meaning you can drive into and out of the CBD freely. LTA will begin dismantling unused gantries as part of the transition to the satellite-based ERP 2.0 system.

ERP 2.0 is the next-generation satellite-based system that replaces the physical overhead gantries with GPS-based On-Board Units installed in vehicles. Over 930,000 vehicles (93 percent of all registered vehicles) have been fitted with an OBU as of February 2026. At launch, ERP 2.0 will replicate the current gantry-based charging model with the same virtual locations and rates. Distance-based charging is technically possible but LTA has not confirmed a date for this.

On the most expensive corridors like CTE Southbound, shifting from the 8:00 to 8:30am peak (6 dollars per gantry) to the 7:30 to 8:00am shoulder period (3 dollars) saves 3 dollars per gantry per trip. For a commuter crossing 2 gantries on a return trip, that is 12 dollars per day or approximately 260 dollars per month. Even a 15-minute shift can move you into a lower rate band.

Yes. Motorcycles typically pay approximately half the car rate at each gantry. For a peak-hour CTE crossing that costs a car 6 dollars, a motorcycle would pay approximately 3 dollars. This makes motorcycles significantly cheaper for ERP-heavy commutes, though the overall cost advantage must be weighed against motorcycle insurance and safety considerations.

If your CashCard or CEPAS card has insufficient balance, the gantry camera records your plate and you receive an Administrative Fee notice of 10 dollars plus the outstanding ERP charge, mailed to the registered vehicle owner. You must pay within two weeks. If you do not pay, a penalty of 70 dollars is issued. Under recent amendments, there is now a 5-day grace period for technical issues before penalties are applied.

No. ERP charges apply equally to all vehicle types including electric vehicles. There are no ERP exemptions for EVs in Singapore. EV owners must maintain a functioning In-vehicle Unit or OBU with sufficient balance, just like petrol or diesel vehicle drivers.

CTE Southbound at Chin Swee has the highest single-gantry rate of 6 dollars for cars during the 8:00 to 8:30am peak. AYE Eastbound at Alexandra matches this rate in the same time window. The KPE Southbound at Defu Flyover charges up to 5 dollars per gantry during peak. These three corridors carry the heaviest CBD-bound morning traffic.

LTA reviews ERP rates every quarter, with adjustments typically taking effect in January, March, June, and September. Rates are adjusted downward during June and December school holidays when traffic is lighter, and upward when average speeds fall below the target range of 45 to 65 kilometres per hour on expressways or 20 to 30 kilometres per hour on arterial roads.

In many cases, yes. Since all CBD cordon gantries are currently switched off and only 22 expressway gantries remain active, using surface roads or arterial roads instead of expressways avoids ERP charges entirely. However, the journey time will typically be longer. The trade-off is between paying the ERP charge for a faster expressway journey or spending more time on free surface roads.

The official source is the LTA OneMotoring website at onemotoring.lta.gov.sg, which publishes current rates for all active gantries. You can also check through the SimplyGo app or the Motorist app, which provide real-time gantry information. Rates displayed on the physical gantry signs show the current charge as you approach.

A typical CBD-bound peak commuter crossing 2 to 4 gantries per trip on a return journey spends approximately 6 to 12 dollars per trip, or 130 to 260 dollars per month over 22 working days. The exact amount depends on the specific corridors used and departure timing. This is a significant cost on top of petrol, parking, and other car ownership expenses.

Yes. LTA typically reduces rates by 1 dollar at several locations during the June and December school holidays, reflecting lighter traffic volumes. These reductions are announced before the holiday period and reverted afterward. The March 2026 review increased rates at 4 locations by 1 dollar to address congestion that built up in January 2026.

Driving through an operating ERP gantry without an IU incurs a penalty of 70 dollars per gantry passed. This penalty applies until the end of 2026 as LTA phases out the IU in favour of the new OBU. All vehicles must have an OBU installed by 1 January 2027. Free OBU installation was available through early 2026; after the free window closed, installation costs 35 dollars for motorcycles and 70 dollars for other vehicles.

The LTA website provides the official rate table for each gantry at each time slot. This estimator adds a commute-pattern layer on top: you select your corridor, timing, vehicle type, and commuting frequency, and it calculates your monthly and annual ERP cost automatically, shows the savings from shifting your departure by 30 minutes, and compares car versus motorcycle costs. It also generates a downloadable PDF report for your records.