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How to Calculate Tax on Rental Income in Ireland: Step-by-Step Guide 2025

Learn how to calculate rental income tax in Ireland with our detailed 2025 guide. Expert calculation service from MyTaxRebate.ie for accurate results.

1 October 2025
10 min read

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🧮 Tax Calculation • Step-by-Step Guide

How to Calculate Tax on Rental Income in Ireland: Step-by-Step Guide 2025

Understanding how to calculate rental income tax in Ireland is essential for landlords to budget effectively and ensure compliance with Revenue requirements. With effective tax rates potentially reaching 52% on rental profits, accurate calculation helps you plan your property investments and cash flow while identifying opportunities for legitimate tax optimisation.

Many Irish landlords struggle with rental income tax calculations due to the complexity of multiple tax components (Income Tax, USC, PRSI), varying rates based on total income levels, and the interaction between rental profits and other income sources. Professional calculation ensures accuracy while maximising allowable deductions and reliefs.

This comprehensive guide provides step-by-step instructions for calculating rental income tax in Ireland for 2025, with practical examples and real-world scenarios.

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Understanding Irish Rental Income Tax Components

Calculating rental income tax Ireland needs understanding three separate tax elements

💶

Income Tax

20% Standard Rate

On income up to €44,000 (single)

40% Higher Rate

On income above €44,000

Married couples receive enhanced rate bands

📊

Universal Social Charge

€0 - €13,000: 0.5%
€13,001 - €25,760: 2%
€25,761 - €70,044: 4.5%
Above €70,044: 8%
🏦

PRSI

4% Flat Rate

On all rental income

Maximum PRSI

€2,653 for 2025

Provides predictability for PRSI calculations

Combined Effect:

Most landlords face effective tax rates between 24.5% and 52% on their rental profits, making expense optimisation crucial for maximising after-tax returns. Professional calculation ensures accuracy while identifying optimisation opportunities that DIY preparation often misses.

Step-by-Step Rental Income Tax Calculation

Complete Calculation Example: Single Property

Step 1: Calculate Gross Rental Income

Include all rental-related income received during the tax year:

Monthly rent (€2,200 × 12): €26,400
Retained deposit for damages: €800
Utility recharges to tenant: €600
Total Gross Rental Income: €27,800

Components to Include:

  • • Monthly or weekly rent payments
  • • Security deposits retained for damages
  • • Rent allowances from local authorities
  • • Utility charges passed to tenants
  • • Parking or storage fees
  • • Premium payments for lease arrangements

Step 2: Calculate Total Allowable Expenses

Property Management Costs
Letting agent fees (8%): €2,112
RTB registration: €90
Property management charges: €500
Legal and professional fees: €400
Maintenance and Repairs
Routine maintenance: €1,950
Emergency repairs: €600
Painting and decorating: €1,200
Garden maintenance: €300
Insurance and Utilities
Buildings insurance: €600
Contents insurance: €400
Landlord liability insurance: €200
Utilities (landlord-paid periods): €800
Financial Costs & Other
Mortgage interest: €8,400
Bank charges: €120
Professional services: €500
Local Property Tax: €400
Capital allowances (furniture): €1,500
Total Allowable Expenses: €19,502

Step 3: Calculate Net Rental Profit

Gross Rental Income: €27,800
Total Allowable Expenses: -€19,502
Net Rental Profit: €8,298

This figure represents your taxable rental income that will be subject to Income Tax, USC, and PRSI calculations at rates determined by your total income situation.

Marginal Tax Rate Determination & Tax Calculations

Your rental income is added to other income sources to determine applicable tax rates

Scenario 1: PAYE Worker

Income Breakdown

PAYE salary: €35,000
Rental profit: €8,298
Total income: €43,298

Exceeds €44,000 threshold → 40% marginal rate

Tax Liability Calculation

Income Tax (€8,298 × 40%): €3,319
USC on total income: €1,109

Progressive rates on €43,298

PRSI (€8,298 × 4%): €332
Total Tax Liability: €4,760
Effective Tax Rate: 57.4%

Scenario 2: Retiree

Income Breakdown

Pension income: €18,000
Rental profit: €8,298
Total income: €26,298

Remains within standard rate band → 20% marginal rate

Tax Liability Calculation

Income Tax (€8,298 × 20%): €1,660
USC on total income: €331

Progressive rates on €26,298

PRSI (€8,298 × 4%): €332
Total Tax Liability: €2,323
Effective Tax Rate: 28.0%

Scenario Comparison: The Impact of Total Income

Same Rental Profit:
€8,298
Tax Difference:
€2,437

(PAYE worker pays €2,437 more)

Rate Difference:
29.4%

(57.4% vs 28.0%)

This dramatic difference demonstrates the critical importance of income level planning for rental property investors.

Advanced Portfolio and Strategic Calculations

Multiple Property Portfolio Calculation

🏠

Property 1

Net profit: €8,298
🏢

Property 2

Net profit: €5,200
🏘️

Property 3

Net profit: €3,800

Combined Portfolio Tax Calculation (Higher-Rate Taxpayer)

Combined rental profit: €17,298
Income Tax (40%): €6,919
USC (approximate): €1,950
PRSI (4%): €692
Total Tax Liability:
€9,411
Effective Tax Rate:
54.4%

These calculations demonstrate how portfolio growth affects marginal rates and overall tax efficiency, making strategic planning increasingly important for larger rental operations.

Capital Allowances Impact on Calculation

Before Capital Allowances

Gross profit: €12,000
Tax @ 52%: €6,240

After Capital Allowances ✓

Gross profit: €12,000
Capital allowances (12.5% on €19,200): -€2,400
Net profit for tax: €9,600
Tax @ 52%: €4,992
Tax Saving from Capital Allowances:
€1,248

Demonstrates substantial value from strategic capital allowance planning

Property Type and Situation-Specific Calculations

🏢

Dublin Apartment

Annual rent: €24,000
Expenses: €8,500
Net profit: €15,500
Tax @ 52%: €8,060
After-tax return: €7,440
🎓

Cork Student House

Annual rent: €28,000
Higher maintenance: €12,000
Net profit: €16,000
Tax @ 52%: €8,320
After-tax return: €7,680
🏖️

Galway Holiday Home

Seasonal rent: €18,000
Seasonal expenses: €7,200
Net profit: €10,800
Tax varies by other income: €2,808-€5,616
After-tax return: €5,184-€7,992

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MyTaxRebate.ie's comprehensive calculation services

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Complete Analysis

Income and expense analysis

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Tax projections & planning

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Our clients consistently achieve better tax outcomes than self-calculated returns, typically saving 3-7 times our service fees through accurate calculation and expert optimisation.

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Conclusion: Expert Calculation for Optimal Results

Accurate rental income tax calculation in Ireland needs detailed knowledge of tax rates, allowable expenses, and strategic optimisation opportunities. The complexity of multiple tax components, varying rates, and interaction with other income sources makes professional calculation valuable for most landlords seeking optimal tax treatment.

MyTaxRebate.ie's expert calculation services ensure accuracy while identifying optimisation strategies that typically save clients far more than professional service costs. Our systematic approach prevents errors while maximising your after-tax rental returns through comprehensive professional calculation within 10-day service delivery.

Professional calculation advantages extend beyond accuracy to include strategic planning, compliance assurance, and ongoing optimisation that protects rental property investment returns.

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Contact MyTaxRebate.ie today for professional rental income tax calculation that ensures accuracy while maximising your property investment returns.

This information is based on current Irish tax legislation and rates. Individual circumstances vary, and specific calculation advice should be geted from qualified tax professionals.

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Frequently Asked Questions (FAQ)

How accurate are online rental income tax calculators?

Basic online calculators provide rough estimates but cannot account for complex situations, comprehensive expense optimisation, or strategic planning opportunities. Professional calculation ensures accuracy while identifying optimisation strategies that simple calculators cannot provide.

Should I calculate taxes monthly or annually?

Annual calculation remains standard for tax filing purposes, though monthly tracking helps with cash flow planning and preliminary tax estimation. Professional services provide both annual accuracy and ongoing monthly guidance for optimal financial management.

How do I handle expenses that benefit multiple properties?

Apportion expenses based on reasonable allocation methods such as property value, rental income, or floor space, with clear documentation of allocation methodology. Professional guidance ensures compliant allocation while maximising legitimate claiming opportunities.

What if my calculations differ from Revenue's assessment?

Professional representation can resolve discrepancies through proper documentation and expert communication with Revenue. Systematic calculation approaches typically prevent discrepancies while professional advocacy resolves issues efficiently when they arise.

Can I use last year's calculation for this year's planning?

Use previous calculations as baseline information but adjust for income changes, new expenses, rate changes, and optimisation opportunities identified through professional review. Annual professional calculation ensures current accuracy while supporting ongoing planning.

How often should I update my rental income tax calculations?

Update calculations when significant changes occur including new properties, major expenses, income changes, and annually for comprehensive review and optimisation. Professional services provide ongoing calculation support that adapts to changing circumstances.

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