Remortgaging a Former Home You Now Rent Out
12 March 2026 · Mary Molloy Solicitors
You bought the apartment, lived in it, moved on, and kept it as a rental — still on the owner-occupier mortgage it started with. Ireland has thousands of these accidental landlords, and most are in quiet breach of their mortgage conditions. A remortgage is the clean way to regularise it, and often improves the finances at the same time.
The breach nobody mentions
Residential mortgage conditions require the property to be your principal private residence and require lender consent before letting. Renting without consent rarely triggers aggressive enforcement, but it is a live breach — and it surfaces the moment you engage with any lender about the property. Better to raise it deliberately than have it discovered.
Two routes to regularity
Route one: ask your current lender for retrospective consent to let, which some grant, sometimes with a rate adjustment. Route two: remortgage onto a buy-to-let product — with your own lender or a new one — aligning the loan with reality. The second route opens the whole market and is often the better deal even at buy-to-let rates, particularly where years of capital repayments and price growth have improved the loan-to-value.
What the buy-to-let application will examine
The tenancy agreement; registration with the Residential Tenancies Board (a statutory obligation, renewed annually); the rent, which drives the lender's rental cover test — including Rent Pressure Zone compliance where applicable; and on apartments, the management company position and service charges. An unregistered tenancy should be registered before the application, not explained during it.
The tax flag
Rental income, interest deductibility, and the capital gains consequences of the years the property was not your residence all raise tax questions we do not advise on — your accountant should be involved before the refinance completes, since the structure can affect the tax outcome. Our role is the legal side: title, tenancy due diligence, and a clean switch onto the right product.
Read more in our main guide: Buy-to-Let Remortgages · or back to the blog.
This page contains general information about Irish law and practice. It is not legal advice, it may not reflect your circumstances, and reading it does not create a solicitor–client relationship with Mary Molloy Solicitors. We do not advise on taxation; please speak to your accountant or Revenue. In contentious business, a solicitor may not calculate fees or other charges as a percentage or proportion of any award or settlement.