When Your Michigan Rental Stops Making Sense: Cap Rate, Cash Flow, and the Real Math

Most Michigan landlords run their rental property on a feel. Rent comes in, mortgage gets paid, the rest is “profit.” Most online cash flow calculators do the same — gross rent minus PITI equals positive number, you are good. Both are wrong, and they are why so many Michigan landlords keep running rentals that have actually stopped making money.

This guide is the honest financial framework. The real cash flow formula. The real cap rate calculation. The actual return on equity test. The break-even analysis that tells you whether to keep, refinance, sell, or 1031 exchange. With Michigan-specific examples and the tax rate assumptions that actually apply.

The Honest Monthly Cash Flow Formula

The wrong way: Gross rent minus PITI equals cash flow. The right way includes vacancy reserve, maintenance reserve, capital expenditure reserve, property management cost (even if you self-manage — your time has value), and an honest line for legal/admin/insurance bumps.

The correct monthly cash flow:

• Gross monthly rent
• minus Mortgage payment (principal + interest)
• minus Property tax (monthly portion)
• minus Property insurance (monthly portion)
• minus Property management fee (8-10% of gross rent if you use a manager; charge yourself the same if you self-manage)
• minus Vacancy reserve (5-8% of gross rent for typical Michigan markets)
• minus Routine maintenance reserve (5-10% of gross rent)
• minus Capital expenditure reserve (5-10% of gross rent for big-ticket replacements: roof, furnace, water heater, foundation, siding, windows)
• equals True monthly cash flow

For a typical Michigan rental with $1,400 monthly rent:

• Gross rent: $1,400
• PITI (mortgage + tax + insurance): $980
• Property management 9%: $126
• Vacancy reserve 6%: $84
• Maintenance reserve 8%: $112
• CapEx reserve 8%: $112
• True cash flow: -$14/month (NEGATIVE)

That property looks like it cash flows $420/month if you only subtract PITI from rent. The real number is roughly zero, or slightly negative. Many Michigan landlords are running properties in this exact situation and do not realize it because they have not booked a major capital expense recently — but the roof, furnace, and other systems are aging, and the bill is coming.

Cap Rate (and Why It Matters for Selling)

Capitalization rate (cap rate) is how investors value income properties. The formula:

Cap Rate = Net Operating Income (NOI) ÷ Property Value

Net Operating Income is annual gross rent minus all operating expenses (taxes, insurance, management, vacancy, maintenance, CapEx — but NOT mortgage payment). It represents what the property earns before financing.

Typical cap rates for Michigan single-family rentals as of 2025-2026:

• Suburban Detroit (Royal Oak, Ferndale, Birmingham): 4-6% (low cap, high price relative to rent)
• Inner-ring Detroit suburbs (Warren, Sterling Heights): 6-8%
• Detroit proper (varies by neighborhood): 8-12%+ in stable areas, higher in distressed
• Grand Rapids: 5-7%
• Flint and Saginaw: 8-12%
• Smaller Michigan markets: 7-10%

An investor evaluating your rental will divide your NOI by the cap rate they require. A property with $12,000 NOI at a 7% cap rate values at $171,000. The same NOI at a 10% cap rate values at $120,000. The cap rate the buyer applies depends on market, property type, and risk profile.

Why this matters when selling: investor buyers calculate their offer using cap rate. Owner-occupant buyers calculate using comps and personal use value. The two values can differ significantly, and choosing the right buyer for your property type matters.

Return on Equity: The Forgotten Test

Most landlords measure return on the cash they originally invested. That math gets stale fast. The honest number is return on CURRENT equity — what you would walk away with if you sold today, divided by your annual return.

Example: You bought a Grand Rapids rental in 2015 for $120,000 with $24,000 down (20%). The home is now worth $220,000. Your mortgage balance is $75,000. Your equity is $145,000.

Annual cash flow: $4,500. Annual principal pay-down: $3,200. Annual appreciation (if it continues): $4,400 (2%). Total annual return: $12,100.

Return on current equity: $12,100 ÷ $145,000 = 8.3%

That sounds OK until you ask: could that $145,000 of equity earn more elsewhere? An S&P 500 index fund averages 9-10% historically. A money market account in 2025 might be 4-5%. If the rental’s return on equity drops below what you can get with less effort, the math says exit.

The Major Capital Expense Trigger

The most common reason Michigan landlords flip from “keep” to “sell” is a looming major capital expense. Typical big-ticket items and rough costs:

• Roof replacement: $8,000-$18,000 for a typical Michigan single-family
• Furnace replacement: $3,500-$7,500
• Water heater: $1,200-$3,000
• Foundation repair: $5,000-$25,000+
• Sewer line replacement: $4,000-$15,000
• Driveway replacement: $4,000-$12,000
• Window replacement (whole house): $8,000-$20,000
• Major plumbing or electrical update: $5,000-$15,000
• Mold or major water damage remediation: $3,000-$20,000+

The decision math: a $14,000 roof on a property with $4,500 annual cash flow takes 3+ years to pay back, assuming nothing else breaks during that time. For an aging home with multiple systems near end of life, the math rarely works.

Cash buyers will buy as-is including known major capital expenses. The price reflects the work needed, but you exit before the bill comes due.

Tax Considerations Built into the Math

Two tax issues directly affect whether to keep or sell:

Depreciation recapture

Every year you own a Michigan rental, you depreciate the building (not land) on your federal tax return. Residential rental depreciates over 27.5 years. For a property with a $120,000 building basis, that is $4,364 of annual depreciation deduction.

The IRS wants that depreciation back when you sell. Depreciation recapture is taxed at a maximum 25% rate. For a property held 10 years with $43,640 of cumulative depreciation, the recapture liability is up to $10,910 in additional federal tax at sale.

Capital gains

Long-term capital gains on the appreciation above your adjusted basis (purchase price + capital improvements – depreciation taken) are taxed at 15-20% federal plus 4.25% Michigan. For a property bought at $120,000 and sold at $220,000 with $43,640 of depreciation taken, the adjusted basis is $76,360. Capital gain: $143,640. At 15% federal + 4.25% Michigan, the tax bite is approximately $27,650.

Total tax owed at sale in this example: approximately $38,560 between depreciation recapture and capital gains. This is real money that does not show up in basic cash flow analysis but absolutely matters when you exit.

For a deeper look at the tax math and how to minimize it via 1031 exchanges, opportunity zones, and timing, see our guide to Michigan rental property sale tax implications.

A Realistic Decision Framework

Run these three tests on your rental:

1. True cash flow test. Apply the full formula above. If true monthly cash flow is negative or under $200, the rental is not paying you for your time and risk.
2. Return on equity test. Calculate annual return divided by current equity. If ROE is under 6-7%, your equity is underperforming what you could earn elsewhere with less effort.
3. Major CapEx test. List every major system (roof, furnace, water heater, foundation, plumbing, electrical, windows). For each, estimate years remaining. Sum the cost of replacements due within 5 years. If the total exceeds 2 years of cash flow, the math is breaking.

If the rental fails two or three of these tests, exit makes financial sense. The remaining decision is HOW to exit (open market, 1031 exchange, cash buyer) — see our tired landlord decision framework for that question.

Refinancing as an Alternative

Some landlords want to extract equity without selling. Cash-out refinance lets you pull a portion of your equity at current mortgage rates while keeping the rental.

The math has to work. Adding $50,000 of mortgage at 7.5% interest adds approximately $375/month to your payment. If your true cash flow was barely positive before the refi, it is now negative.

Refinancing makes sense when:

• The rental has substantial cash flow that can absorb the higher payment
• You have a clear, higher-return use for the cash (paying off higher-rate debt, funding a more profitable investment)
• You genuinely want to keep being a landlord, just want to extract some equity

Refinancing does NOT make sense if you are tired of being a landlord. Many landlords refinance, then realize they still hate the operational work and sell anyway. The refi cost (closing costs, higher mortgage balance) makes the exit worse.

Frequently Asked Questions

What is a “good” cap rate for a Michigan rental? 7-9% is reasonable for most Michigan markets. Below 5% is investor-thin. Above 12% usually signals a riskier market or property condition issues.

Should I include my own time as a cost? Yes. Even at $30/hour, 4 hours a month of landlord tasks is $1,440/year. Tenant turnover spikes to 20+ hours in a month. If you do not include time, you are not measuring true profitability.

What if I bought when prices were low and have huge appreciation? That is a great problem. The capital gains tax bite at sale will be larger, but you are still walking away with significant equity. 1031 exchange can defer the tax if you want to stay in real estate.

Does Michigan have any landlord-friendly tax breaks I am missing? Beyond depreciation, you can deduct virtually all rental expenses (mortgage interest, property tax, insurance, repairs, management, mileage to and from the property). Talk to a tax preparer who specializes in real estate.

Is it worth doing a CMA before deciding? Get a free CMA (Comparative Market Analysis) from a local Realtor or a cash offer from an investor. The actual current value matters for the ROE calculation. Many landlords are running properties they think are worth $180,000 that the market actually values at $230,000 — or the reverse.

Need a Quick Realistic Valuation?

Offer Now Michigan can give you a free, no-obligation cash offer on your Michigan rental property within 24 hours. The offer reflects what an investor will actually pay today — useful even if you ultimately decide to keep the rental, because it tells you what your equity is really worth. Call 810-425-5961 or visit our sell rental property Michigan page.

For more on the rental exit math, see our pillar guide on the complete Michigan landlord exit, the tired landlord decision framework, or the tax implications of selling a Michigan rental.