Access the tax arrears instalment calculator

The tax arrears instalment calculator allows you to estimate the terms that may apply to a phased payment arrangement. Revenue may agree to this arrangement, to allow you to pay your tax arrears.

Using the information that you input, the calculator works out the:

  • interest that has accrued
  • deferred (projected) interest
  • number of months the arrangement will take, or the amount of each instalment.


The calculation is only indicative of the repayment terms. Balances outstanding on a period may also be subject to interest on late payment charges where part-payments have been made. These charges will be applied and included by ROS on application for the Phased Payment Arrangement.

Who is the service for?

This service is suitable for any Revenue customer who is registered on ROS and wants to apply to pay their tax arrears in instalments. It allows you to estimate the terms of an arrangement before formally submitting an application.

You can apply for an arrangement by completing a ePPA1 form and submitting the form through ROS.

What you need to use the service

To use the service, you will need the full list of your tax arrears.

How to access the service

Use this link to access the tax arrears instalment calculator.