See how much your HOA or COA should save each year. Avoid underfunding and special assessments.
Why use this HOA reserve fund calculator
Know how much to save
Calculate the annual contribution your HOA needs to cover future capital expenses like roof replacement, elevator repairs, or parking lot resurfacing.
Avoid special assessments
Underfunded reserves force boards to issue special assessments. This calculator helps you plan ahead so owners are not surprised by large one-time bills.
Compare funding scenarios
Test different annual contribution amounts and see how each affects your reserve balance over 10, 20, or 30 years.
Share with your board
Export a detailed CSV report to present at board meetings or annual owner meetings. No signup required.
Plan Your HOA Reserve Fund — Avoid Special Assessments
Calculate your HOA or COA's annual reserve contribution. Forecast 10-30 year projections for roof replacements, parking lots, and major capital expenses. Avoid surprise special assessments with data-driven planning.
Built for volunteer board members and self-managed HOAs and COAs. Your data stays in your browser.
HOA Basics
Enter basic information about your small HOA or condo association and planning horizon.
Major Items
List the major building components that need funding.
Click an example to add it, or create an empty item:
Funding Assumptions
Configure how you want to calculate reserve requirements.
Scenario Comparison
Compare different contribution levels to see their long-term impact on your reserve fund balance.
Enter basic information about your small HOA or condo association and planning horizon.
Add the major components that will need replacement or major repair over your planning horizon.
| Component Name | Category | Estimated Replacement Cost | Expected Lifespan (Years) | Current Age (Years) | Remove Component |
|---|---|---|---|---|---|
Add your first major components to see the impact on your reserve fund.Examples: roof, facades, elevator, boiler, parking lot… | |||||
Configure how you want to calculate reserve requirements.
Compare different contribution levels to see their long-term impact on your reserve fund balance.
Review your recommended reserve contributions based on the components you entered.
Total Annual Requirement
$0.00
Recommended Annual (All Units)
$0.00
Recommended Monthly (All Units)
$0.00
Recommended Annual Per Unit
$0.00
Recommended Monthly Per Unit
$0.00
Based on the Fractional Age method used in professional reserve studies.
Ideal Fully Funded Balance
$0.00
Current Reserve Balance
$0.00
About the Fractional Age Method
This method calculates an ideal reserve balance by multiplying each component's replacement cost by its fractional age (current age ÷ expected lifespan). Components that are 50% through their lifespan should ideally have 50% of their replacement cost in reserves. This is a common method used in professional reserve studies.
This free HOA reserve fund calculator provides a generic estimate for small, self-managed HOAs and condo associations. It does not replace a formal reserve study or professional advice. Always review your HOA's governing documents and consult a qualified professional before making financial or legal decisions.
Reserve Fund Best Practices
General guidelines to help small associations maintain healthy reserve funds.
These are general tips for informational purposes only. Always consult with qualified professionals and review your association's governing documents for specific guidance.
Maintain Separate Reserve Accounts
Keep reserve funds in separate bank accounts from operating funds. This prevents commingling and makes it easier to track reserve balance and ensure funds are available when needed.
Update Your Reserve Study Regularly
Review and update your reserve analysis every 3-5 years, or more frequently if major changes occur. Regular updates help ensure your funding levels remain adequate as costs and conditions change.
Track Individual Components
Maintain detailed records for each major component, including age, condition, replacement cost estimates, and expected replacement dates. This helps with accurate planning and budgeting.
Fund Reserves Consistently
Contribute to reserves every month or quarter, not just when special assessments are needed. Consistent funding spreads costs fairly across all owners over time and reduces the need for large special assessments.
Communicate with Owners
Share reserve fund status, upcoming projects, and contribution levels with homeowners regularly. Transparency builds trust and helps owners understand why reserve contributions are necessary.
Plan for the Unexpected
Build a cushion into your reserve funding to handle unexpected repairs or cost overruns. Components can fail earlier than expected, or replacement costs may be higher than estimated.
Review Insurance Coverage
Ensure your association's insurance policy adequately covers major components. Good insurance can reduce the financial impact of unexpected failures and help protect your reserve fund balance.
Want to manage your HOA reserves all year long?
We're building an online workspace for small HOAs to track reserve contributions, expenses, and long-term projections — without spreadsheets.
- Track reserve contributions and expenditures
- Get automated funding alerts and reminders
- Store reserve study documents securely
- Generate annual reserve fund reports