Rental property cash flow looking good? Great! But what happens when the HVAC suddenly dies or a tenant unexpectedly moves out, leaving you with a vacancy? Skimping on investment reserves is a critical mistake that can sink your real estate investment faster than you think! On this episode (Ep 51) of the 5-Minute PRIME Podcast , host Martin Maxwell dives into the absolute necessity of building and maintaining adequate operating and capital expenditure (CapEx) reserves for long-term success.

Tune in to learn:
- The True Cost of Being Unprepared: How unexpected repairs and vacancies can destroy your profits without a financial safety net like investment reserves.
- Why Investors Neglect Reserves: Common pitfalls like over-optimism, tight budgets, and underestimating future costs — and how they put your investment reserves at risk.
- How Much is Enough? Practical rules of thumb for calculating investment reserves (e.g., 3–6 months of expenses + % of property value for CapEx). Deeper dive to reserve calculations.
- Building Your Buffer: Simple, actionable strategies to consistently fund your investment reserves.
- Investing with Confidence: How adequate investment reserves provide peace of mind, stability, and protection against financial shocks.
Is your investment portfolio truly secure, or are you one surprise expense away from disaster? Learn how to build a financial fortress around your properties with solid investment reserves.
Listen to 5-Minute PRIME podcast Now!
Play on your Favorite Podcast Platform
Show Notes:
Key Takeaways
- Unexpected costs are guaranteed. Think: $6,000+ for an HVAC or $13,000 for a roof. Without reserves, these events spell trouble.
- Three big traps that keep investors from funding reserves: over-optimism, tight budgets, and underestimating long-term costs.
- Reserve breakdown: 3–6 months of fixed expenses for Operating Reserves; 1–2% of property value annually for CapEx.
- Best practices: Automate savings, build reserves into your deal analysis, and delay scaling until you’re properly capitalized.
Action Step:
- Review your current rental properties and list all major systems (roof, HVAC, plumbing, etc.) with their estimated remaining lifespan.
- Estimate replacement costs for each major system based on local contractors, online resources (like Angi or HomeAdvisor), or past invoices.
- Calculate your monthly CapEx reserve goal using a simple method: ($Estimated Total Replacement Costs) ÷ (Years Left on Each Item) ÷ 12
- Set up a separate CapEx savings account or sub-account for each property to start funding reserves consistently.
- Re-listen to Episode 21 to refresh your understanding of deal analysis and how CapEx fits into your cash flow assumptions.
Mentioned in This Episode
Episodes to Revisit:
- Episode 15: Financial Preparation for Your First Investment
- Episode 18: Managing Your Properties Like a Pro
- Episode 21: How to Run a Deal Analysis That Actually Works
- Episode 48: Navigating Your First Rehab Project
Challenge for Today: Investment Reserves
- Pull up your acquisition spreadsheet from your last property purchase.
- Check if you included CapEx reserves as part of your operating expenses or monthly cash flow.
- if you didn’t, add them in now using today’s method, and update your numbers.
- Calculate the new monthly reserve total based on estimated lifespan and replacement costs.




