Is $200 Enough? The New Math for Rental Property Cash Flow in 2024
By Arend from Dealunderwriter · 8/20/2026
For a rental property, the recommended minimum cash flow is $250 per door. DealUnderwriter's benchmarks suggest aiming for $300 per door if you manage the property yourself or $500 per door if you use professional management. Investors should also reserve 10–15% of gross rent for capital expenditures and target an 8–12% cash-on-cash return.
Why the $100-per-door rental cash flow rule no longer works
For decades, real estate investing forums have touted a simple mantra: "If it clears $100 a month after the mortgage, buy it." As the founder of DealUnderwriter, I’ve audited thousands of pro formas, and I can tell you definitively that, in the current economic climate, $100 per door is no longer an investment; it is a liability waiting to happen.
When investors ask how much cash flow is enough for a rental, they are usually looking for a static number. However, "enough" is a moving target influenced by the Federal Reserve's inflation targets, local maintenance labor costs, and the looming reality of large-scale capital expenditures (CapEx).
Why is your current rental property cash flow target probably too low?
Cash flow is the lifeblood of a real estate deal, but not all cash flow is equal. There is a significant difference between gross cash flow (what's left after paying PITI) and net cash flow (what stays in your pocket after long-term reserves).
1. The inflationary erosion of purchasing power
If your property nets $200 today and inflation averages 3–4% annually, that $200 will have the purchasing power of roughly $148 in ten years. If your rents don't outpace the rising costs of property taxes and insurance—which have spiked significantly in markets like Florida and Texas recently—your cash flow will effectively hit zero.
2. The CapEx time bomb
According to data from the National Association of Realtors (NAR), the median age of owner-occupied homes is roughly 40 years. For rentals, this often means systems like HVAC, roofs, and water heaters are reaching the end of their life cycles simultaneously. If you aren't setting aside 10–15% of gross rents for CapEx, your $200 "cash flow" is actually a deferred debt to your future self.
How much rental property cash flow is enough today?
Based on our internal underwriting benchmarks at DealUnderwriter, we suggest the following thresholds for a single-family residential (SFR) or small multifamily asset:
- The Minimum Survival Threshold: $250 per door. This is the absolute floor. It covers minor vacancies and basic repairs but offers little margin for error.
- The Scalability Standard: $400–$500 per door. This level of cash flow allows an investor to hire professional property management (typically 8–10% of gross rents) while still maintaining a profit.
- The Inflation-Hedge Target: A cash-on-cash (CoC) return of 8% or higher, regardless of the dollar amount.
What happens to your cash flow when assumptions slip?
To determine whether a deal truly provides "enough" cash flow, you must run a sensitivity analysis. This measures how much your cash flow drops if one variable changes.
| Occupancy Rate | Monthly Rent | Expenses (45% Rule) | Debt Service | Net Monthly Cash Flow |
|---|---|---|---|---|
| 100% | $2,000 | $900 | $850 | $250 |
| 95% (Avg) | $1,900 | $900 | $850 | $150 |
| 90% (Low) | $1,800 | $900 | $850 | $50 |
| 85% (Bad) | $1,700 | $900 | $850 | -$50 |
In this scenario, a mere 10% dip in occupancy (one month of vacancy) nearly wipes out a year's worth of profit if you were only targeting a $250 "buffer."
What changes the definition of "enough" rental cash flow?
The location premium
In high-appreciation markets (Tier 1 cities like San Francisco or NYC), investors often accept $0 or even negative cash flow in exchange for tax benefits and massive capital gains. However, for the average investor seeking financial freedom, this is a dangerous game. In "Cash Flow Markets" (Midwest or Southeast), "enough" should be measured by the yield relative to the risk of lower tenant quality.
The "yield on cost" factor
As you pay down the mortgage, your cash flow increases, but your return on equity (ROE) often decreases. If you have $200,000 in equity generating $500 in cash flow, you are earning only a 3% return on that equity. At that point, your cash flow is no longer "enough" because it is underperforming compared with a simple Treasury bill or high-yield savings account, which currently offers around 4–5% according to the Federal Reserve.
How do you protect your rental property cash flow?
- Audit Your Insurance Yearly: Premiums are the #1 cash flow killer in 2024. Shopping your policy can save $50–$100 a month—instantly increasing your "enough" margin.
- Self-Fund a Reserve Account: Before pocketing a dime, ensure you have six months of PITI (Principal, Interest, Taxes, Insurance) in a liquid account.
- Prioritize Net Operating Income (NOI): Focus on decreasing expenses rather than just chasing higher rents. Low-flow plumbing fixtures and LED lighting can boost cash flow by $20–$30 per month across a portfolio.
So, how much cash flow is enough for a rental property?
So, how much cash flow is enough for a rental property? If you manage it yourself, aim for $300 per door. If you want a hands-off investment with a property manager, aim for $500 per door. Anything less leaves you vulnerable to the inevitable "big fix" that turns a dream investment into a financial drain.
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About Arend from Dealunderwriter: Arend builds and stress-tests each AI tool on this site, and reviews every article before it is published.
This article was drafted with AI assistance and reviewed by Arend from Dealunderwriter before publishing.