Estimates for Income Tax and Corporation Tax

Overview

The content on the following pages will help you understand how estimates for Income Tax and Corporation Tax (CT) work and what steps you should take. 

If you fail to submit your Income Tax or CT Return, Revenue can estimate the tax due. A notice of estimate will issue to you outlining the estimated tax payable for the period.

Next: If you receive an estimate for Income Tax or Corporation Tax

Published: 24 March 2026 Print this page

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