If you receive income from renting property in Ireland, you must declare it to Revenue -- Ireland's tax authority -- regardless of the amount. Understanding your obligations, the deductions available to you, and the link between tax relief and RTB registration is essential for every Irish landlord.

This guide walks through the process of declaring rental income, the expenses you can claim, current tax reliefs, and the key considerations that affect your tax position.

Who Must Declare Rental Income?

Rental income in Ireland is taxable as Case V income under the income tax rules. You must declare it whether you are an Irish resident or a non-resident landlord, and regardless of whether the rental income is your only income or supplements employment or self-employment income.

Rental income is declared through the self-assessment system via Revenue's Online Service (ROS). If you are already registered for self-assessment (for example, as a self-employed person), you report rental income on your Form 11. PAYE workers with rental income who are not otherwise required to file a Form 11 can use the Form 12 if their rental profits are below a certain threshold; however, Revenue recommends registering for self-assessment if you have ongoing rental income.

Non-Resident Landlords

If you live outside Ireland but rent property here, your tenant (or a collection agent you appoint) is required to deduct income tax at the standard rate (currently 20%) from rent payments and remit it to Revenue on your behalf, unless you appoint a collection agent resident in Ireland to handle the tax obligations in full. Appointing a collection agent allows the tenant to pay rent without deduction.

What Counts as Rental Income?

Revenue considers the following as taxable rental income:

  • Regular rent payments
  • Premium payments received for granting or renewing a lease
  • Service charges paid by tenants as part of the rental arrangement
  • Insurance proceeds for lost rental income (for example, under a rent guarantee policy)
  • Any other payments in connection with the use of the property

Calculating Your Taxable Rental Income

Your taxable rental income is calculated as:

Gross rental income minus allowable expenses equals net rental income (profit)

Net rental income is then taxed at your marginal income tax rate -- 20% (standard rate) or 40% (higher rate) depending on your total income -- plus the Universal Social Charge (USC) and PRSI (Pay Related Social Insurance) where applicable. The Residential Premises Rental Income Relief (see below) provides a partial offset against income tax only, and does not reduce USC or PRSI.

Allowable Expenses

Irish landlords can deduct expenses that are incurred wholly and exclusively for the purpose of letting the property.

Mortgage Interest

Mortgage interest on loans used to purchase, improve, or repair a rental property is fully deductible (100%), provided the tenancy is registered with the Residential Tenancies Board (RTB). This is a statutory condition: if the tenancy is not registered with the RTB for any period, the interest deduction is disallowed for that period.

The Revenue guidance on rental income sets out the full conditions for claiming mortgage interest.

Other Deductible Expenses

  • Repairs and maintenance -- costs of restoring the property to its original condition. Note that improvements (enhancing beyond the original condition) are capital expenditure and not deductible as current expenses.
  • Insurance -- building, contents, and landlord liability insurance premiums
  • Management fees -- property management company fees
  • Letting agent fees and advertising costs for finding tenants
  • Accountancy fees for preparing rental accounts
  • Legal fees relating to the current tenancy (but not those relating to the purchase of the property)
  • Service charges -- management company fees for apartments
  • Local Property Tax (LPT) -- deductible if paid by the landlord in relation to the rental property
  • RTB registration fees -- the cost of registering the tenancy with the RTB
  • Pre-letting expenses -- certain costs incurred before a property is first let (or after a previous tenancy ends) may be deductible if the property was vacant for a qualifying period; conditions apply

Capital Allowances (Wear and Tear)

For furnished rental properties, you can claim a wear and tear allowance on the cost of furniture, fittings, and white goods. The allowance is 12.5% of the original cost per year, for a maximum of eight years (giving 100% relief over eight years). For example, if you purchased furniture costing €2,000, you can claim €250 per year for eight years.

This is confirmed by Revenue's guidance on allowable expenses.

What You Cannot Deduct

  • Capital expenditure on buying or improving the property
  • Your own time or labour
  • Expenses not wholly and exclusively related to the rental activity
  • LPT if paid by the tenant

Residential Premises Rental Income Relief (RPRIR)

The Residential Premises Rental Income Relief (RPRIR) is a tax credit for individual landlords of rented residential premises, introduced for the four tax years 2024 to 2027. The maximum credit is:

  • €600 in 2024
  • €800 in 2025
  • €1,000 in 2026
  • €1,000 in 2027

The credit is the lower of the maximum amount for the year or 20% of your net Case V rental income. It reduces your income tax liability only -- it does not reduce USC or PRSI. The relief is also not refundable.

A key condition: to retain the relief, landlords must keep their properties available for rent until 31 December 2027. Landlords who withdraw a qualifying property from the rental market before that date may be required to repay the benefit received.

Registering your tenancy with the Residential Tenancies Board is both a legal obligation and a prerequisite for claiming the full mortgage interest deduction.

Registration Obligations

  • Register within one month of the tenancy commencement date for new tenancies
  • Register annually on the anniversary of the tenancy start date for existing tenancies
  • Pay the registration fee of €40 per year per tenancy (or €20 for approved housing bodies). Late fees of €10 per month apply for each month the registration is overdue.
  • For landlords registering up to 10 tenancies in the same building simultaneously, a combined annual fee of €170 applies if registered on time.

Failure to register can result in penalties, loss of the mortgage interest deduction for the unregistered period, and may affect your ability to use the RTB's dispute resolution service.

Filing Deadlines

The self-assessment filing deadline is:

  • 31 October for paper returns
  • Mid-November (the Revenue-extended online deadline) for those who file and pay through ROS

For example, rental income earned in the 2025 tax year must be declared by October/November 2026.

Preliminary Tax

You must also pay preliminary tax -- an advance payment towards your current year's tax liability. Preliminary tax is due by 31 October of the current tax year (or the ROS extended deadline). It must be at least 90% of your final liability for the current year or 100% of your previous year's liability. Underpayment of preliminary tax results in interest charges.

Rental Losses

If your allowable expenses exceed your rental income, you have a rental loss. Rental losses can only be:

  • Offset against rental profits from other Irish rental properties in the same tax year
  • Carried forward against future rental income from Irish properties

Rental losses cannot be offset against employment income or other categories of income.

Record-Keeping

Revenue requires landlords to keep records for at least six years from the end of the tax year to which they relate. Records should include:

  • Tenancy agreements and RTB registration confirmations
  • A record of all rent received (dates, amounts, tenant details)
  • Receipts for all expenses claimed
  • Mortgage statements showing interest paid
  • Insurance policies and premium receipts
  • Invoices for repairs, management fees, and other costs
  • Correspondence with tenants and agents

How Cleemo Helps Irish Landlords

Cleemo simplifies rental income management:

  • Automatic rent tracking -- every payment recorded with date, amount, and tenant
  • Expense categorisation -- expenses organised to align with Revenue's requirements (repairs, insurance, management fees, mortgage interest)
  • Property-level reporting -- income and expenses per property for straightforward tax reporting
  • Document storage -- RTB registrations, leases, receipts, and mortgage statements all in one secure place
  • Year-end summaries -- export your financial data for your Form 11 or accountant
  • Portfolio overview -- monitor the performance of all your properties in one dashboard

Frequently Asked Questions

Can I deduct the cost of renovating a property before renting it?

Renovation costs that improve the property (a new kitchen or bathroom, for example) are capital expenditure and generally cannot be deducted. However, certain pre-letting expenses for properties that were vacant for a qualifying period may be deductible, subject to conditions set out in Revenue guidance. Repairs (restoring to original condition) are deductible; improvements are not.

What if I rent to a family member at below-market rent?

You must still declare the rental income. If the rent is below market rate, Revenue may limit the expenses you can deduct to the proportion that relates to the actual rent received.

Do I need to register with the RTB if I rent a room in my own home?

If you rent a room in your own home and the arrangement qualifies under the Rent a Room scheme, you do not need to register with the RTB. Income from the Rent a Room scheme is exempt from income tax up to €14,000 per year. If the accommodation is a self-contained unit, different rules may apply.

What happens if I do not declare rental income?

Revenue can investigate and assess undeclared income. Penalties for non-disclosure include tax, interest, and surcharges. Revenue also publishes a list of tax defaulters. Voluntary disclosure before an audit or investigation generally results in lower penalties.

Conclusion

Declaring rental income in Ireland involves understanding a range of deductions, meeting RTB registration requirements, paying preliminary tax on time, and filing by the correct deadline. The process is manageable when you keep thorough records throughout the year.

A purpose-built property management tool like Cleemo keeps your records organised, your expenses categorised, and your documents readily accessible -- making your annual tax return as straightforward as possible.

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