How Much Cash Flow Is Good for a Rental Property?
See how much monthly cash flow a rental property should make, compare cash flow per door and cash-on-cash return, and stress-test a deal before you buy.
By David Chen, Buy-and-Hold Investor · Last reviewed: August 30, 2026 · 8 min read
Run the numbers while you read
Open the matching calculator and test each assumption against your own deal.
The Short Answer: Good Cash Flow Depends on the Cash and Risk
Positive cash flow is only the starting point. A property making $150 a month after realistic expenses may be acceptable if little cash is invested and the building is stable, but inadequate if the deal requires a large down payment or has an aging roof and furnace.
Instead of chasing one universal dollar target, compare monthly cash flow per unit, annual cash-on-cash return, reserve needs, and the result under a downside scenario. A good deal leaves a margin after vacancy, repairs, management, and debt service rather than merely reaching zero.
Calculate True Monthly Cash Flow
Monthly Cash Flow = (Rent + Other Income) - Vacancy - Operating Expenses - Debt Service
Include property taxes, insurance, management, maintenance, utilities paid by the owner, HOA dues, leasing costs, and a capital expenditure reserve. Excluding irregular costs makes weak deals look profitable.
For example, $2,200 of collected income minus $900 of operating costs and a $1,050 mortgage leaves $250 a month. That is $3,000 a year before income taxes and unexpected costs.
Use Three Benchmarks Together
- Cash flow per door shows the monthly buffer each unit contributes.
- Cash-on-cash return compares annual cash flow with the total cash invested.
- DSCR tests whether property income covers debt service before investor taxes.
- Reserve coverage shows how many months of expenses you can absorb when income stops.
- Local alternatives show whether the return compensates you for work and property-specific risk.
Stress-Test Before Calling the Cash Flow Good
Run a base case and a downside case. Lower rent or occupancy, raise repairs and insurance, and test a higher renewal rate if the loan may reset. If a modest change wipes out the entire monthly surplus, the headline cash flow is fragile.
The strongest target is not the highest optimistic output. It is a return that remains acceptable after realistic friction and still funds reserves for the property you are buying.
Frequently Asked Questions
Is $200 a month good cash flow for a rental property?
It can be, but the amount alone is not enough. Compare the $2,400 annual cash flow with total cash invested, the property condition, reserve needs, local risk, and how the result changes when rent falls or expenses rise.
Should rental cash flow include a CapEx reserve?
Yes for planning purposes. Setting aside money for roofs, HVAC systems, appliances, and other major replacements gives a more durable view of spendable cash flow.
What is the difference between cash flow and cash-on-cash return?
Cash flow is the dollar surplus after expenses and debt service. Cash-on-cash return divides annual pre-tax cash flow by the cash invested, making deals with different purchase prices and down payments easier to compare.
David Chen · Buy-and-Hold Investor, Denver, CO
David is a long-term rental investor who manages a portfolio of buy-and-hold properties. He writes from the operator seat about expenses, reserves, and the numbers that decide whether a rental actually performs.
Educational Disclaimer
All calculations are estimates for educational and planning purposes only. PropertyFlowTools.com does not provide financial, tax, legal, lending, or investment advice. Verify calculations and consult qualified professionals before making property or financing decisions.