959R Inclusion of self-assessment in return

Summary

This section provides that every tax return submitted under Chapter 3 must include a self-assessment by the chargeable person to whom the return relates. This is subject to section 959S (where a person opts for Revenue to do the self-assessment) and section 959T (where a person acts on behalf of the chargeable person). The section sets out the basic elements to be contained in a self-assessment and provides that where it relates to amounts chargeable under more than one heading, these should be identified separately (e.g. income tax, USC, PRSI and, if required, any surcharge arising).

The section provides that where a taxpayer files electronically and uses the calculation of liability provided by the Revenue Online System in the self-assessment, interest or penalties will not apply should any error or mistake arise from Revenue’s computational system.

Details

(1) Except where a self-assessment is made by Revenue, under section 959S, or by an agent, under section 959T, then every return must include a self assessment made by the chargeable person.

(2) Such a self assessment is part of the tax return and must include the details required by Revenue.

(3) These details include:

1. the items set out in section 959C (being the amount of income, profits or gains or chargeable gains arising to the person for the period
2. the amount of tax chargeable,
3. the amount of tax payable and
4. the balance of tax, taking account of tax paid, or overpaid, as the case may be, by the person to the Collector General for that period.

1. (4) where a self-assessment relates to more than one tax, the self-assessment shall identify the amount of tax under each of the Acts.
2. an amount due under any enactment other than the Acts is to be assessed and charged as if it were an amount of income tax, the self-assessment shall include such amount and shall identify the amount so chargeable.
3. A self-assessment shall include and identify the amount of any surcharge for the chargeable period.

(5) Where a chargeable person files their tax return via ROS (under Chapter 6 of Part 38)

1. and bases their self-assessment on the indicative tax calculation that may be provided by ROS, and
2. pays tax in accordance with that indicative calculation which, in the event calculation is incorrect then
   1. any additional tax shall be deemed due and payable within one month of the amended assessment and ()).
   2. No interest and penalties (Part 47) shall apply.

(6) The chargeable person should keep either an electronic or a paper copy of the indicative tax calculation on which they relied.

Relevant Date: Finance Act 2024