How to Calculate Rental Income Tax in Kenya: MRI vs Regular Tax

"How much tax do I actually owe?"

Simple question. Not-so-simple answer.

Kenya gives landlords two ways to calculate rental income tax. Each produces different numbers. And choosing wrong can cost you thousands.

Let's break down both methods with actual calculations.

Table of Contents

• The Two Systems: Quick Overview
• MRI Tax Calculation
  • The Formula
  • Example 1: Small Landlord
  • Example 2: Medium Landlord
  • Example 3: Large Landlord
  • MRI Key Points
• Regular Income Tax Calculation
  • The Formula
  • Allowable Expenses
  • Graduated Tax Rates (2026)
  • Example 1: Small Landlord (Low Expenses)
  • Example 2: Medium Landlord (High Expenses)
  • Example 3: Heavily Mortgaged Property
• The Decision Framework
• Combined Example: Full Calculation
• Special Situations
  • Situation 1: Loss-Making Property
  • Situation 2: Part-Year Rental
  • Situation 3: Multiple Income Sources
• How to Switch Systems
• Calculating Your Own Tax
• Record-Keeping Requirements
• Key Takeaways

The Two Systems: Quick Overview

Before diving into formulas, understand your options:

MRI (Monthly Rental Income) Tax:

• Flat 7.5% on gross rent above threshold
• No deductions allowed
• Monthly filing
• Simpler

Regular Income Tax:

• Graduated rates (10% to 30%)
• Deductions allowed
• Annual filing
• More complex

Most landlords use MRI because it's simpler. But "simpler" doesn't always mean "cheaper."

MRI Tax Calculation

The Formula

Monthly MRI Tax = (Gross Monthly Rent - KES 288,000) × 7.5%

Monthly MRI Tax = (Gross Monthly Rent - KES 288,000) × 7.5%

Important: The threshold is annual KES 288,000, which works out to KES 24,000/month. But the calculation uses total monthly rent, not per-unit.

Actually, let me correct that. The current MRI system works as follows:

Monthly MRI Tax = Gross Monthly Rent × 7.5%

Monthly MRI Tax = Gross Monthly Rent × 7.5%

If your annual rental income is below KES 288,000 (KES 24,000/month), you're exempt from MRI and should file under regular income tax instead.

Example 1: Small Landlord

Scenario: You own one apartment renting at KES 35,000/month.

Calculation:

• Monthly rent: KES 35,000
• MRI tax: KES 35,000 × 7.5% = KES 2,625/month
• Annual tax: KES 2,625 × 12 = KES 31,500/year

Example 2: Medium Landlord

Scenario: You have 5 units generating total rent of KES 180,000/month.

Calculation:

• Monthly rent: KES 180,000
• MRI tax: KES 180,000 × 7.5% = KES 13,500/month
• Annual tax: KES 13,500 × 12 = KES 162,000/year

Example 3: Large Landlord

Scenario: You own an apartment block generating KES 800,000/month.

Calculation:

• Monthly rent: KES 800,000
• MRI tax: KES 800,000 × 7.5% = KES 60,000/month
• Annual tax: KES 60,000 × 12 = KES 720,000/year

MRI Key Points

• Tax is on gross rent — every shilling collected
• No deductions for mortgage, repairs, management fees
• Due by 20th of the following month
• Filed via iTax

Regular Income Tax Calculation

The Formula

Taxable Rental Income = Gross Rent - Allowable Expenses
Tax = Taxable Income × Graduated Rate

Taxable Rental Income = Gross Rent - Allowable Expenses
Tax = Taxable Income × Graduated Rate

Allowable Expenses

Under regular income tax, you can deduct:

Full guide on deductions here.

Graduated Tax Rates (2026)

These rates apply to your total taxable income (including salary if employed).

Example 1: Small Landlord (Low Expenses)

Scenario: One apartment at KES 35,000/month, minimal expenses.

Income:

• Annual rent: KES 35,000 × 12 = KES 420,000

Expenses:

• Repairs: KES 20,000/year
• Insurance: KES 15,000/year
• Management: KES 0
• Total expenses: KES 35,000

Calculation:

• Taxable income: KES 420,000 - 35,000 = KES 385,000
• Tax on first 288,000: KES 28,800 (10%)
• Tax on remaining 97,000: KES 24,250 (25%)
• Total tax: KES 53,050/year

Compare to MRI: KES 31,500/year

Verdict: MRI is cheaper for this landlord.

Example 2: Medium Landlord (High Expenses)

Scenario: 5 units at KES 180,000/month total, significant expenses.

Income:

• Annual rent: KES 180,000 × 12 = KES 2,160,000

Expenses:

• Mortgage interest: KES 600,000/year
• Repairs: KES 150,000/year
• Management fees: KES 216,000/year (10% of rent)
• Insurance: KES 50,000/year
• Legal/admin: KES 30,000/year
• Total expenses: KES 1,046,000

Calculation:

• Taxable income: KES 2,160,000 - 1,046,000 = KES 1,114,000
• Tax on first 288,000: KES 28,800 (10%)
• Tax on next 100,000: KES 25,000 (25%)
• Tax on remaining 726,000: KES 217,800 (30%)
• Total tax: KES 271,600/year

Compare to MRI: KES 162,000/year

Verdict: MRI is cheaper even with high expenses.

Example 3: Heavily Mortgaged Property

Scenario: 5 units at KES 180,000/month, very high mortgage.

Income:

• Annual rent: KES 2,160,000

Expenses:

• Mortgage interest: KES 1,200,000/year (heavily leveraged)
• Repairs: KES 100,000/year
• Management: KES 216,000/year
• Insurance: KES 50,000/year
• Total expenses: KES 1,566,000

Calculation:

• Taxable income: KES 2,160,000 - 1,566,000 = KES 594,000
• Tax on first 288,000: KES 28,800 (10%)
• Tax on next 100,000: KES 25,000 (25%)
• Tax on remaining 206,000: KES 61,800 (30%)
• Total tax: KES 115,600/year

Compare to MRI: KES 162,000/year

Verdict: Regular tax is cheaper — saving KES 46,400/year.

The Decision Framework

When is regular tax better than MRI?

Calculate your expense ratio:

Expense Ratio = Total Allowable Expenses / Gross Rent × 100

Expense Ratio = Total Allowable Expenses / Gross Rent × 100

Rule of thumb:

• Expenses below 30% of rent → MRI usually cheaper
• Expenses 30-50% of rent → Calculate both, compare
• Expenses above 50% of rent → Regular tax likely cheaper

When regular tax typically wins:

• New property with large mortgage
• Major repairs done this year
• High management fees
• Multiple deductible expenses

When MRI typically wins:

• Mortgage paid off or low interest
• Minimal repairs/maintenance
• Self-managed property
• Stable, low-expense operations

Combined Example: Full Calculation

Let's work through a complete scenario.

Landlord profile:

• 8 units across 2 properties
• Total monthly rent: KES 320,000
• Mortgage interest: KES 80,000/month (KES 960,000/year)
• Property management: 8% of rent = KES 307,200/year
• Repairs: KES 150,000/year
• Insurance: KES 80,000/year
• Service charge (that you pay): KES 60,000/year

MRI Calculation:

• Annual rent: KES 3,840,000
• Tax: KES 3,840,000 × 7.5% = KES 288,000/year (or KES 24,000/month)

Regular Tax Calculation:

• Annual rent: KES 3,840,000
• Total expenses: KES 960,000 + 307,200 + 150,000 + 80,000 + 60,000 = KES 1,557,200
• Taxable income: KES 3,840,000 - 1,557,200 = KES 2,282,800
• Tax on first 288,000: KES 28,800 (10%)
• Tax on next 100,000: KES 25,000 (25%)
• Tax on remaining 1,894,800: KES 568,440 (30%)
• Total tax: KES 622,240/year

Verdict: MRI saves KES 334,240/year.

Even with over KES 1.5M in expenses, MRI is cheaper because the 7.5% flat rate beats the 30% marginal rate on higher income.

Special Situations

Situation 1: Loss-Making Property

What if expenses exceed rent?

Under regular tax, rental losses can offset other income (salary, business). Under MRI, you pay 7.5% on gross rent regardless.

Example:

• Rent: KES 50,000/month
• Mortgage interest: KES 60,000/month
• Other expenses: KES 15,000/month
• Net position: -KES 25,000/month (loss)

MRI: Pay KES 3,750/month (KES 50,000 × 7.5%) Regular tax: Rental loss of KES 300,000/year offsets other income

If you have salary income, regular tax might create actual tax savings through the loss offset.

Situation 2: Part-Year Rental

Property was vacant for 4 months.

MRI: Only pay tax for months you received rent. 8 months × monthly rent × 7.5%.

Regular tax: Annual calculation, but income is lower. Expenses for the full year still deductible.

Situation 3: Multiple Income Sources

You have salary of KES 150,000/month plus rental income.

MRI: Rental taxed separately at 7.5%. Salary taxed under PAYE as usual.

Regular tax: Rental income added to salary, potentially pushing you into higher brackets.

This usually makes MRI more attractive for employed landlords — it keeps rental income separate from the progressive salary taxation.

How to Switch Systems

Currently on MRI and want regular tax (or vice versa)?

Switching from MRI to Regular:

1. Write to your Tax Service Office
2. Request change of tax obligation
3. Wait for KRA confirmation
4. Begin filing annually instead of monthly

Switching from Regular to MRI:

1. Ensure you've filed all outstanding annual returns
2. Request change to MRI
3. Wait for confirmation
4. Begin monthly filing

Important: You must stay in your chosen system for at least 2 years before switching again.

Calculating Your Own Tax

Use this worksheet:

Step 1: Calculate Annual Gross Rent

Monthly rent × 12 = _______

Monthly rent × 12 = _______

Step 2: Calculate MRI Tax

Annual rent × 7.5% = _______

Annual rent × 7.5% = _______

Step 3: List Allowable Expenses

Mortgage interest: _______
Repairs: _______
Management fees: _______
Insurance: _______
Service charge: _______
Legal/admin: _______
Other: _______
Total expenses: _______

Mortgage interest: _______
Repairs: _______
Management fees: _______
Insurance: _______
Service charge: _______
Legal/admin: _______
Other: _______
Total expenses: _______

Step 4: Calculate Regular Tax

Taxable income = Annual rent - Total expenses = _______

Tax on first 288,000 (10%): _______
Tax on next 100,000 (25%): _______
Tax on remainder (30%): _______
Total regular tax: _______

Taxable income = Annual rent - Total expenses = _______

Tax on first 288,000 (10%): _______
Tax on next 100,000 (25%): _______
Tax on remainder (30%): _______
Total regular tax: _______

Step 5: Compare

MRI tax: _______
Regular tax: _______
Difference: _______

MRI tax: _______
Regular tax: _______
Difference: _______

Choose the lower option (assuming records support deductions).

Record-Keeping Requirements

Whichever system you choose, keep records:

For MRI:

• Monthly rent receipts/statements
• Bank/M-Pesa records showing income
• Records for 5 years

For Regular Tax:

• All income records (as above)
• Expense receipts and invoices
• Mortgage statements showing interest
• Management company invoices
• Insurance certificates
• All supporting documents for 5 years

Property management software can generate tax-ready reports for both systems.

Key Takeaways

1. MRI is simpler — 7.5% flat rate, monthly filing
2. Regular tax allows deductions — But higher rates apply
3. Most landlords benefit from MRI — Unless expenses exceed 50%+ of rent
4. Heavily mortgaged properties — May benefit from regular tax
5. Run the numbers — Don't assume, calculate
6. Keep records — Both systems require documentation
7. Consider consulting — Tax advisor for complex situations

The right choice can save you tens of thousands per year. Take the time to calculate.

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