Thanks @Gerard0Please don't panic! If there's a problem with service of a document but there's no dispute it was sent, the RTB may be able to apply the "slip rule". It doesn't mean a document is invalid.
Has something changed with regards to the slip rule? I'm aware of several cases where the NOT was deemed invalid for lack of same day service.
Example case below from 18 months ago:
E.g. https://rtb.ie/wp-content/uploads/2025/05/TR0724-007785-DR1023-89668_Tribunal_Report.pdf
In this case, the NOT was otherwise valid:
4. The Tribunal finds that the form of the Notice of Termination complies in all respects with the requirements set out in s.62 of the Act and that the notice period given by the Appellant Tenants for the Respondent Landlord to vacate was in excess of the minimum period of notice stipulated by s.66 of the Act.
However, due to being served on the RTB a few days before the tenant, it was deemed invalid:
It is therefore evident that the Notice of Termination was not served on the RTB on the day on which the Notice of Termination was served on the Appellant Tenants and therefore the Notice of Termination is invalid.
10. In circumstances where the Appellant Tenants are materially prejudiced by the issues surrounding the service of the Notice of Termination, the Tribunal finds that slip rule as provided for in S64(A) of the Act or the service of a Remedial notice as provided for in S66 (2) (A) of the Act should not be applied in this instance
Also, is it the case the slip rule only applies to NOTs and not to Rent Review / Rent Setting notices?