Do we declare it in our 2026 tax year ???.
From Revenue: How is Rent-A-Room Relief claimed?:
You must enter the amount of exempt income on your:
- Income Tax Return (Form 11) using the Revenue Online Service (ROS) if you are self-assessed
- or
- Income Tax Return (Form 12) using myAccount if you are registered for Pay As You Earn (PAYE).
From Tax & Duty manual: Rent-A-Room Relief: Part 07-01-32, page 3:
The provision covers, for example, sums arising from lettings to students for an academic year or term.