Rental property investment is the most familiar entry point into real estate, buy a house or small multifamily, rent it out, collect the difference between rent and expenses. The idea is simple enough to explain in a sentence, but the numbers behind it, and the ways those numbers go wrong, are where most first-time landlords get surprised.
Cash Flow Starts With Every Expense, Not Just the Mortgage
New landlords often run the math using rent minus mortgage payment and call the difference profit, leaving out property taxes, insurance, vacancy reserves, maintenance, and eventual capital expenditures like a new roof or HVAC system. A property that looks like it cash flows $400 a month on a simplified spreadsheet can break even or lose money once those line items are added honestly, which is the single most common mistake in early rental analysis.
Property management, whether self-managed time or a paid manager's fee, is another line item that gets left out too often. Even an owner who plans to self-manage should price out what a manager would cost, since that number represents the true cost of the labor being contributed for free.
Vacancy and Turnover Cost More Than the Lost Rent
A vacant unit costs the missed rent plus turnover expenses, cleaning, painting, minor repairs, and marketing time to find a new tenant, and a landlord who underestimates how long that gap runs will misjudge the property's true annual yield. Screening carefully at move-in reduces turnover frequency, but even well-screened tenants move for job changes, family reasons, or simply the end of a lease, so some vacancy should be built into every projection rather than treated as a worst case.
Leverage Cuts Both Ways on a Rental
Financing a rental with a mortgage increases the return on the cash actually invested if the property appreciates and rents rise, but it also means a downturn in either rent or value hits the equity harder than it would an unleveraged purchase. A rental bought with 20 percent down that drops 15 percent in value has lost roughly three-quarters of the owner's equity on paper, a swing that a cash buyer of the same property would not feel nearly as sharply.
Rate resets on adjustable-rate financing add a second layer of risk, since a payment that was comfortable at the original rate can strain or eliminate cash flow after a reset, which is worth stress-testing before committing to variable-rate debt on a rental purchase.
Selling a Rental Without Losing a Third of the Gain to Tax
An owner who has held a rental for years and built substantial appreciation faces capital gains tax, depreciation recapture, and potentially net investment income tax on a straight sale, a combination that can claim well over a quarter of the gain. A 1031 exchange defers all of it by rolling the proceeds into another investment property, or a passive DST interest, keeping the full amount of equity working instead of handing a portion to tax on the way out.
Common Questions
What is a realistic vacancy rate to plan for on a rental
It varies by market and property type, but many investors budget 5 to 8 percent of annual rent for vacancy and turnover costs combined, adjusting up in softer rental markets or down in tight ones.
How much should be set aside for maintenance and capital expenses
A common rule of thumb sets aside 1 to 2 percent of the property's value annually for maintenance and long-term capital items, though older properties or those with deferred maintenance may need more.
Is a higher down payment always better on a rental purchase
Not necessarily. A larger down payment reduces risk and monthly debt service but also reduces the leveraged return if the property appreciates, so the right amount depends on the investor's risk tolerance and other capital needs.
What taxes apply when selling a rental property outright
A sale can trigger federal and state capital gains tax on the appreciation, depreciation recapture on the depreciation claimed during ownership, and potentially the net investment income tax, depending on the owner's income level.
Can I 1031 exchange out of a rental and into a passive investment
Yes, proceeds from a rental sale can be exchanged into a DST interest, allowing an owner to step back from tenant management while deferring the tax that a cash sale would otherwise trigger, provided the identification and closing deadlines are met with a qualified intermediary in place before the sale closes.
