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Count.ie

Property · Calculator companion · By K Imports

Rent change comparison: practical guide

This guide explains how to use the Count.ie rent change comparison. Compare current and proposed rents in euros and percentages. Follow the inputs, method and worked example below, then compare your own scenario.

Guide written .

Open the Rent change comparison calculator

What to prepare

  • Collect the purchase, loan, rental or project figures from dated documents.
  • Distinguish purchase price, borrowing, one-off acquisition costs and recurring ownership costs.
  • Check the property's use, tax year and any scheme eligibility against official guidance.

Understand the inputs

The calculation method

Calculate monthly difference, percentage change and impact over the selected months.

Worked example

Illustrative inputs and their result.

Example inputs

Current monthly rent (€)
1500
Proposed monthly rent (€)
1560
Comparison months
12

Calculated example result

Change Percent
4%
Period Cost Change
€720.00

How to interpret the result

A loan payment, gross yield or purchase budget describes only part of ownership. Read exclusions carefully: affordability, lender approval, vacancy, repairs and transaction eligibility may not be fully modelled.

Compare like-for-like properties or financing scenarios, with the same term and cost basis. Where relevant, test a higher interest rate, a vacancy period or a larger maintenance allowance.

Common mistakes to avoid

  • Do not compare gross rental yield with net cash flow as if they were the same measure.
  • Do not assume a favourable tax result means the property or letting qualifies for a scheme.
  • Keep refundable deposits and recurring costs separate from permanent acquisition costs.

Assumptions and sources

Arithmetic only; lawful rent-setting, review timing, tenancy history and notices must be verified separately.

If your case falls outside this scope, use a more suitable calculator or contact us about an unclear method.

Related property guides

Try your own scenario in the calculator

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