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Why does a NSW CTP Green Slip 6 month premium cost more than half of a 12-month premium?

Six month NSW CTP Green Slip policies cost more because of an administration fee involved in processing two payments per year rather than one.

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You can pay for your CTP Green Slip:

  • Online
  • By calling us on 131 144
  • At your local branch
  • By post (complete the payment slip on your policy certificate and send it to NRMA Insurance, Reply Paid 9871, Sydney NSW 2000)

Renewal payments can also be made at your local post office.

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You can choose to pay monthly, quarterly or annually.

The option to pay monthly or quarterly instalments is not available for policies in NSW, QLD, TAS or the ACT that were last renewed prior to 1 July 2024, or first purchased prior to 21 April 2024 and not yet renewed. It will become available to those policies when they next renew. Excludes travel and business insurance.

For more information read the Premium, Excess and Discount Guides on the policy booklets page.

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The price of your insurance is based on the likelihood of a claim being made on your policy in the future. There are a number of factors we take into account when determining your premium.

We calculate your premium by combining the:

  • Pricing factors (these are different for car and home policies)
  • Policy options
  • Minimum and maximum premium
  • Government charges
  • Any discounts you’re eligible for.

To find out more about how we work out your premium, have a look at our Premium, Excess & Discounts Guide on our policy booklets page.

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You can usually get a NSW CTP Green Slip policy for 6 or 12 months.

You can also get a 3-month policy if your vehicle:

  • Has a gross vehicle mass (GVM) of more than 4.5 tonnes, or
  • Was registered by a motor dealer for the first time.

If your CTP policy expired more than 21 days ago, you’ll only be able to choose a 12-month policy when renewing.

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Your NSW CTP Green Slip premium is calculated based on a number of factors about you and your vehicle, some of which are set by The NSW State Insurance Regulatory Authority (SIRA) including:

  • The type of vehicle you drive
  • Where your vehicle is garaged

We apply additional risk factors, including:

  • Age of youngest driver using the vehicle
  • Vehicle age
  • Vehicle use (private or commercial)
  • At-fault motor claim in last 2 years
  • Demerit points
  • Years of relationship
  • Other motor vehicle insurance
  • Vehicle safety features e.g. weight, brakes etc
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