Electronic Road Pricing (ERP) is a system used to manage road congestion in Singapore.
At a glance
Understanding ERP |
You pay a fee when driving through an ERP gantry during operational hours.
ERP charges are reviewed regularly to keep traffic moving at an optimal speed.
There are different ERP operating hours on the eve of major public holidays. |
Paying your ERP charges |
The In-vehicle Unit (IU) in your vehicle deducts the ERP charges based on your chosen mode of payment.
To avoid ERP violations, sign up for NETS or EZ-Link auto-top up or backend payment services. From 1 Oct 2024, if you did not pay your ERP charge at the gantry, LTA will send an SMS notification after the violation to inform you of the missed ERP payments. You have a five-day grace period from the date the SMS is sent to pay the missed ERP charge. There will be no $10 administrative charge imposed if payment is made during the grace period.
To ensure that motorists receive the SMS from LTA and are able to benefit from the five-day grace period, motorists are reminded to keep their Singapore-registered mobile number updated on the Singpass website. For more details, please refer to LTA’s news release.
If the missed ERP payment is not made during the grace period, you will receive a physical letter on notice of ERP violation. You will then have to pay the ERP charge plus an administrative charge of $10.
See how foreign-registered vehicles pay ERP.
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Related digital services |
Check your ERP violation notice Pay outstanding ERP charge and fine |
Understanding ERP
ERP is used to manage road congestion in Singapore. Drivers will incur ERP charges when passing through ERP gantries during its operational hours. To avoid incurring ERP charges, motorists can consider using alternative routes, travelling outside ERP operational hours, or taking public transport instead of driving.
ERP rates are reviewed every quarter and adjusted during the June and December school holidays, based on the traffic conditions at the time.
ERP rates are generally set in half-hour periods.
The time period (0730-0800) means the corresponding ERP rate applies from and including 7.30am and applies until but excluding 8.00am.
The same definition applies to other time periods.
ERP rates are adjusted to keep traffic moving at an optimal speed range of 20-30 kmh on arterial roads and 45-65 kmh on expressways.
The ERP charge you pay depends on:
- The type of your vehicle. Bigger vehicle types pay more.
- The time you enter the ERP gantry. During peak hours, charges can change every half hour to help spread traffic flow over a longer period.
ERP operating hours on Sundays, public holidays and eve of major public holidays
There are no ERP charges for Sundays and all public holidays. ERP stops operating at 1 pm on the eve of New Year’s Day, Chinese New Year, Hari Raya Puasa, Deepavali and Christmas Day.
Paying ERP charges
All Singapore-registered vehicles must install either an IU or On-Board Unit (OBU) to drive through operating ERP gantries. If you do not have an IU or OBU, there is a penalty of $70.00 for each operating ERP gantry you drive through.
In-Vehicle Unit
The IU in each vehicle communicates with the ERP gantry to deduct the ERP charge. You can install your IU or OBU at any LTA-Authorised IU Inspection and Service Centre or Authorised OBU Inspection and Service Centres respectively. For IU-related issues, you can visit an IU inspection centre.
Each IU comes with a label stating the IU number, you can refer to the pictures below on how the label looks like. Alternatively, you can also check your IU number online.
