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What expenses should be included in ROI calculations?

Connecticut rental guidance and tenant-landlord operational information.
Published January 29, 2026 State-specific rental guidance Update This Question
Reviewed by Tenants & Landlords Editorial Team

This rental guidance was reviewed by the Tenants & Landlords Intelligence Team, specializing in lease agreements, notices, rent disputes, deposits, evictions, and tenant-landlord operational procedures.

Asked 125 days ago · Connecticut

Calculating ROI for Rental Properties in Connecticut: Expenses to Include

When investing in rental properties in Connecticut, calculating a realistic and thorough Return on Investment (ROI) is crucial for making sound financial decisions. An accurate ROI calculation helps investors assess the profitability of their investment and compare opportunities effectively within the state’s unique market context.

Understanding which expenses to include in your ROI calculation ensures that your analysis captures the true cost of owning and operating a rental property in Connecticut. This guide outlines the key expense categories you should factor into your ROI calculations as a Connecticut rental property investor.

What is ROI in Rental Property Investing?

Return on Investment (ROI) generally measures the profitability of an investment relative to its cost. For rental properties, it is typically expressed as a percentage and calculated by dividing the net annual income by the total cash invested.

Basic Formula:

\[
\text{ROI} = \frac{\text{Annual Net Income}}{\text{Total Cash Investment}} \times 100
\]

Where:

  • Annual Net Income = Gross rental income minus all operating expenses and costs.
  • Total Cash Investment = Down payment, closing costs, renovation costs, and other initial expenditures.
Focusing on Connecticut rental properties, it’s essential to be aware of specific expenses and costs that can affect your net income and total investment.

Essential Expenses to Include in ROI Calculations for Connecticut Rental Properties

1. Property Purchase Costs

  • Down Payment: The initial cash you pay toward the purchase price.
  • Closing Costs: Connecticut closing costs typically range between 2-5% of the purchase price and include:
- Attorney fees (common in Connecticut) - Title search and title insurance - Recording fees - Mortgage application and origination fees - State transfer taxes or conveyance taxes (Connecticut imposes a real estate conveyance tax on property transfers)

Including all closing costs upfront ensures the total invested capital reflects your actual cash outlay.

2. Mortgage Payments

If the property is financed, your monthly mortgage payments are a significant expense. Include:

  • Principal and interest
  • Property taxes escrowed in mortgage payments (unless paid separately)
  • Homeowner’s insurance escrowed in mortgage payments (unless paid separately)
Be aware that Connecticut property taxes vary widely depending on the municipality, so accurate budgeting is necessary.

3. Property Taxes

Even if included in the mortgage escrow, Connecticut property taxes should be counted as an operating expense for ROI purposes.

  • Property tax rates in Connecticut can be higher than the national average, especially in suburban and urban areas.
  • Annual property taxes will significantly impact your cash flow.

4. Insurance

  • Landlord Insurance: Protects against property damage, liability claims, and loss of rental income.
  • Premiums in Connecticut can vary based on the property's location, age, and risk factors such as proximity to flood zones or coastal areas.

5. Maintenance and Repairs

Regular upkeep is vital in Connecticut’s climate, which experiences cold winters and humid summers.

  • Budget for routine maintenance such as heating system servicing, snow removal, landscaping, and exterior repairs.
  • Set aside reserves for unexpected repairs (e.g., roof, plumbing, electrical issues).
Some investors allocate 5-10% of gross rent annually for maintenance.

6. Property Management Fees

If you hire a property management company, include their fees in your ROI calculations.

  • Typical property management fees in Connecticut range from 8-12% of monthly rental income.
  • Factors like vacancy filling, tenant screening, and legal compliance are often worth the cost, especially if you own properties at a distance.

7. Vacancy Allowance

Plan for periods when the property is unoccupied.

  • A typical vacancy rate assumption is 5-10%.
  • This reflects lost rental income and potential costs to prepare the unit for new tenants.

8. Utilities (if landlord-paid)

Depending on your lease structure, you may be responsible for some utilities:

  • Water and sewer fees
  • Trash collection
  • Gas or electric if included in rent
Make sure to include these if you pay them directly.

9. Legal and Administrative Costs

Connecticut landlords may face unique legal requirements and expenses, such as:

  • Lease preparation and review costs
  • Legal fees related to eviction proceedings (Connecticut has tenant-friendly laws that may extend eviction timelines)
  • Licensing fees or permits required in some municipalities

10. HOA or Condo Association Fees

If your rental is part of a homeowners or condominium association, monthly or annual dues must be factored in.

  • These fees can cover common area maintenance, security, or amenities.
  • Including HOA fees is critical for an accurate ROI, particularly in Connecticut’s suburban communities.

Additional Connecticut-Specific Considerations

Real Estate Conveyance Taxes

  • Connecticut imposes a conveyance tax (sometimes called a transfer tax) on real estate sales, which can either be paid by buyer, seller, or split.
  • This cost is part of your initial investment and affects your total cash invested.

Seasonal Maintenance Costs

  • Due to cold winters with significant snow and ice, expenses related to snow removal and winterizing the property should be anticipated.
  • HVAC maintenance to ensure both heating and cooling systems function efficiently through seasonal changes is also important.

Sample Expense Breakdown for ROI Calculation

Expense CategoryDescriptionEstimated Cost Considerations
Down PaymentPortion of purchase price paid upfrontTypically 20-25% of purchase price
Closing CostsLegal fees, title insurance, transfer tax2-5% of purchase price
Mortgage PaymentsPrincipal, interest, escrow for taxes and insuranceDepends on loan amount and interest rate
Property TaxesAnnual municipal tax on propertyVaries by town; often high in CT
Landlord InsuranceProperty and liability coverageVaries by property risk and location
Maintenance & RepairsRoutine and emergency repairs5-10% of gross rent annually
Property Management FeesFee charged by managers (if used)8-12% of monthly rent
Vacancy AllowanceLoss of income during vacancies5-10% of annual rent
Utilities (Landlord-paid)Water, gas, electric, trash if includedVaries by property and lease agreement
Legal & Admin FeesLease prep, eviction, permitsVariable, based on activity
HOA FeesMonthly association dues (if applicable)Varies widely

Conclusion

For rental property investors in Connecticut, including all relevant expenses in ROI calculations is essential to understand the true profitability of your investment. Factoring in the state’s specific costs—such as higher property taxes, legal fees, seasonal maintenance, and conveyance taxes—will provide a realistic financial picture.

By systematically including all the expenses listed above, you’ll be better equipped to evaluate potential properties, manage your investments efficiently, and maximize returns in the competitive Connecticut rental market.

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