Build reserves and a downside case
Reserves give you time to solve problems without being forced to sell. Estimate the cost of vacancy, a major repair, an insurance deductible, and ordinary obligations while the property is not producing rent. Keep property reserves separate from your personal emergency funds.
Use a replacement schedule for expensive components. A roof with limited remaining life is not adequately addressed by a small monthly maintenance estimate. Reserve contributions are planning amounts; they are not automatically deductible expenses for tax purposes.
Run a lower-rent case, a longer-vacancy case, and a major-repair case. Include changes in taxes and insurance rather than freezing current bills forever. If a downside month requires money you do not have, reduce leverage, renegotiate price, increase capital, or pass.
A rental produces $250/month in modeled cash flow. One $3,000 repair consumes a full year of that cash flow. The property can still be worthwhile, but the owner needs liquidity beyond the monthly surplus.
Decision checklist
- Estimate specific repair, vacancy, and deductible exposures.
- Keep property liquidity separate from household emergencies.
- Test whether a large one-time expense can be funded immediately.
Check your understanding
Why does positive average cash flow not eliminate reserve needs?
Show the answer
Repairs and vacancies can be concentrated in a single month rather than spread evenly through the year.
Your next action
Write a reserve target based on specific risks. Test whether you can fund three months without collected rent.
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