Quick answer: Buy-to-let investors in Ireland need a minimum 30% deposit, typically pay higher mortgage interest rates, and pay income tax on all rental receipts (at their marginal rate plus USC and PRSI). Rental yields typically range from 3–7% gross depending on location. You can deduct mortgage interest (currently 100% for compliant landlords), agent fees, and maintenance costs.
What is a Buy-to-Let Mortgage?
A buy-to-let (BTL) mortgage is a mortgage taken out to purchase a property you intend to rent rather than live in. BTL mortgages have different rules from residential owner-occupier mortgages:
| Feature | Residential Mortgage | Buy-to-Let Mortgage |
|---|---|---|
| Minimum deposit | 10% (FTB), 10% (SSB since Jan 2023) | 30% minimum (70% LTV cap) |
| Interest rate | Standard | Usually 0.5–1.5% higher |
| LTI cap | 4× (FTB), 3.5× (SSB) | Based on rental income coverage |
| Help to Buy | FTBs on new builds | Not eligible |
| Stress test | Household income | Rental income coverage ratio |
Lenders assess BTL applications on the expected rental income relative to the mortgage repayment — typically requiring the rent to cover 125–145% of the monthly interest-only payment.
Deposit Requirements
Most Irish lenders require at least 30% of the property's value as a deposit for a BTL purchase, in line with the Central Bank's 70% LTV cap for investment properties. Some lenders set this higher depending on the property type and location.
Example: A €300,000 investment property at 30% deposit → you need €90,000 deposit.
Higher deposit requirements mean BTL is more capital-intensive than owner-occupier purchases. It also means the equity base is more robust if property values fall.
Rental Yields
Gross rental yield = (Annual rent ÷ Purchase price) × 100
Typical gross yields in Ireland (2026):
| Location | Approximate Gross Yield |
|---|---|
| Dublin 1/2/7/8 (city) | 5–7% |
| Dublin suburban | 4–5.5% |
| Cork city | 5–7% |
| Galway city | 5–6.5% |
| Other cities/regional | 6–8% |
| Rural commuter belt | 3–5% |
Net yield (after costs) is lower — deduct mortgage repayments, management agent fees (7–12%), maintenance, insurance, and tax.
Rental Income Tax
All rental income in Ireland is taxable. Landlords pay income tax on rental profits at their marginal rate (20% or 40%), plus Universal Social Charge (USC) and PRSI on the income.
Allowable Deductions
You can deduct the following from rental income before calculating tax: - Mortgage interest — currently 100% of interest on qualifying BTL mortgages (subject to RTB registration) - Letting agent fees — management and letting fees - Insurance — building and landlord liability insurance - Maintenance and repairs — not improvements or capital expenditure - Property management software, accounting fees - Local Property Tax (LPT) - RTB registration fee
Capital expenditure (extensions, renovations, new kitchens) is not immediately deductible — it may qualify for wear and tear allowances over 8 years (12.5% per year).
Residential Premises Rental Income Relief (RPRIR): Separately from the deductions above, registered landlords can claim RPRIR — a tax credit (relief at the 20% standard rate) for the 2024–2027 tax years, worth up to €1,000 in 2026 and 2027. It is conditional on the tenancy being RTB-registered and the property being kept in the rental market for the required period; a clawback applies if you exit early. See Revenue — RPRIR.
Example Tax Calculation
- Annual rent: €18,000
- Mortgage interest: €6,000
- Management fee (10%): €1,800
- Insurance: €600
- Maintenance: €500
- Net rental profit: €9,100
- Tax at 40% marginal rate: €3,640
- Net income after tax: ~€5,460
Declaring it: Form 11 and pay-and-file
Rental income is self-assessed — you declare it yourself, Revenue does not do it for you: - If your net non-PAYE income (rental profit after deductions) is over €5,000, you are a chargeable person and file a Form 11 through ROS (Revenue Online Service). Under €5,000, you can usually return it on a Form 12 instead. - The pay-and-file deadline for a tax year is 31 October of the following year (for example, 2025 rental income is due by 31 October 2026), extended to around mid-November if you both pay and file online through ROS. - Under pay-and-file you settle the balance for the year just gone and pay preliminary tax for the current year at the same time. - Register every tenancy with the RTB — it is a condition of deducting your mortgage interest and of the RPRIR credit.
Keep records of rent received and every expense; a missed RTB registration or a late return can cost you the interest deduction and trigger surcharges.
Capital Gains Tax (CGT)
When you sell a BTL property, any gain is subject to Capital Gains Tax (CGT) at 33% on the profit (your main home is exempt, but a rental is not). See the dedicated Capital Gains Tax on Property guide for how the gain is calculated, the €1,270 annual exemption, allowable costs and the payment dates.
Example: - Bought for €250,000, sold for €380,000 - Gain: €130,000 - CGT at 33%: €42,900 - Net after CGT: €87,100
Allowable deductions from the gain include: purchase costs (stamp duty, solicitor fees at time of purchase), selling costs, and allowable capital improvements.
Local Property Tax (LPT)
BTL landlords pay Local Property Tax on the property based on its market value. LPT is payable in November each year. LPT is deductible from rental income for tax purposes.
Landlord Obligations
As a landlord in Ireland, you must: - Register every tenancy with the RTB within one month of the tenancy commencing, and renew the registration annually (€40 per tenancy per year) - Maintain the property in habitable and safe condition - Comply with national rent control rules (lower of 2% or CPI inflation per year, once annually, nationwide) - Give proper written notice to terminate a tenancy - Provide a rent book or written receipts - Ensure smoke and CO alarms are installed and functioning
Failure to register with the RTB means you cannot deduct mortgage interest from your rental income.
New-Tenancy Rent Setting
The 2%-or-CPI national rent cap governs increases within an existing tenancy and does not directly control the starting rent for a new tenancy with an incoming tenant.
Critical restriction — no-fault evictions: If you end a tenancy without fault on the tenant's part (e.g. sale, own use, renovation), you are barred from resetting to market rent for the next tenancy — the incoming rent must equal the rent registered at the end of the previous tenancy.
You may set a new market-level starting rent only in specific cases — for example where the previous tenant left voluntarily or breached their obligations, the property no longer suited the tenant's needs, it is the property's first tenancy, the property was out of the rental market for at least two years (one year if a protected structure) or was substantially renovated, or at the end of a 6-year Tenancy of Minimum Duration cycle (for tenancies created from 1 March 2026, you may re-set to market rent once every 6 years).
Is BTL Worth It?
The case for BTL depends on: - Rental yield vs mortgage cost — net yield after tax needs to exceed your cost of finance - Capital appreciation expectations — Irish property values have historically appreciated in the long run - Management burden — being a landlord involves legal obligations and tenant management - Liquidity — property is illiquid; selling takes months and incurs CGT and agent fees
Many landlords treat BTL as a long-term wealth-building strategy rather than a short-term income source.
Own a Home With a Spare Room? Rent-a-Room Relief May Be More Tax-Efficient
Buy-to-let rental income is fully taxable. But if you already own your home and have a spare bedroom, Rent-a-Room Relief offers a very different proposition: rent a room in your own home and earn up to €14,000 per year completely tax-free — no income tax, no USC, no PRSI.
Unlike BTL, Rent-a-Room Relief also has no impact on your CGT Principal Private Residence exemption when you eventually sell — meaning you can earn supplementary income from your home without jeopardising the tax-free gain on its sale.
→ See Rent-a-Room Relief: The €14,000 Tax-Free Rule Explained for a full breakdown.
Common Questions
Q: Do I need a separate license or qualification to be a landlord? No specific licence is required to be a private landlord in Ireland. However, you are subject to all relevant legislation (Residential Tenancies Act, landlord obligations) and must register tenancies with the RTB. Some landlords join voluntary landlord organisations for support and guidance.
Q: Can I use my home's equity as a deposit for a BTL property? Yes — you can remortgage your principal private residence to release equity and use it as a deposit on a BTL property, subject to your lender's approval and your overall affordability. This is a leveraged strategy and increases the risk on your family home.
Q: Can a buy-to-let property ever be my principal private residence? If you move into a property that you previously rented out, it can become your PPR — which has CGT implications. Periods of PPR are exempt from CGT on any eventual sale. Keep records of when the property was your PPR versus rented, as this affects your CGT calculation.