How to choose financing for a rental property
The right loan for a rental is the one that leaves the property with a comfortable cushion after the mortgage, at a cost you can justify, with an exit you can count on. For most small landlords buying a stabilised property that means a conventional investment loan; DSCR and portfolio loans fit when your income documentation or property count rules that out; hard money and HELOCs are short-term tools; and seller financing depends entirely on the seller.
The calculator above compares monthly cash flow, leverage and a 10-year projection for the options you enter. This guide explains each financing type, shows with real arithmetic how the size of your down payment changes your returns, and covers rate sensitivity and the reserves lenders ask for. Loan terms change often and vary by lender, so the ranges below are labelled as typical, not guaranteed.
The main financing options
Conventional investment property loans
These are loans that follow Fannie Mae or Freddie Mac guidelines, made by banks, credit unions and mortgage companies. They usually offer the lowest rates available to investors and 30-year fixed terms. Rates for investment properties are typically higher than for a home you live in, and pricing adjustments rise as the down payment shrinks. Typical down payments run from about 15% to 25%, with 2 to 4 unit properties at the higher end. You qualify on your personal income, credit and debt-to-income ratio, and the number of financed properties you can hold under these programs is capped.
DSCR loans
Debt service coverage ratio loans are made by non-bank lenders and underwritten mainly on the property’s rent compared with its payment, rather than on your tax returns. They suit self-employed investors, people with many properties, and borrowers who buy in an LLC. Expect higher rates and fees than conventional loans, typical down payments of 20% to 25% or more, and often a prepayment penalty for the first few years. Many programs look for a ratio of roughly 1.0 to 1.25; check how each lender defines the ratio, because some use gross rent and others net income.
Portfolio loans
A portfolio loan is one a bank or credit union keeps on its own books instead of selling. Because it doesn’t have to meet agency rules, the lender can be flexible on property condition, number of properties, entity ownership or blanket loans across several properties. The trade-offs are often adjustable rates or balloon terms (for example a five-year fixed period followed by a reset or payoff), and relationship requirements such as keeping deposits with the bank. Local banks are the usual source.
Hard money loans
Hard money lenders lend short term against the property’s value, often including rehab funds released in draws. They are fast and care more about the deal than your income, but rates and up-front points are far higher than long-term loans, and terms are typically measured in months. Hard money is a bridge, not a hold strategy: it only works with a realistic refinance or sale at the end. It is common in the BRRRR approach; the BRRRR calculator models the refinance step.
Seller financing
The seller acts as the lender: you pay part of the price up front and pay the rest in instalments under a promissory note secured by the property. Terms are whatever you negotiate, which can mean a lower down payment, no bank underwriting and faster closing. Common catches are a short term with a balloon payment, a higher rate than a bank would charge, and an existing mortgage on the property whose due-on-sale clause the seller has not addressed. Use a real estate attorney and title company, because federal and state lending rules can apply to seller-financed sales.
HELOCs and home equity loans
Borrowing against your own home to fund a down payment or a cash purchase is quick and often cheaper than hard money, but it puts your home on the line for the rental’s performance. HELOCs usually have variable rates and a draw period followed by a repayment period with higher payments. If you use one, the rental’s cash flow has to carry both its own mortgage and the HELOC payment, and many lenders require you to disclose borrowed funds used for a down payment.
How leverage changes returns: a worked example
Example (hypothetical): a single-family rental bought for $300,000 produces net operating income (rent minus operating expenses, before the mortgage) of $19,200 a year, a 6.4% cap rate. The loan is 30 years at 7%. To keep the arithmetic clear, cash invested is just the down payment; real closing costs would lower every return figure slightly. Appreciation is assumed at 3% in year one, purely for illustration.
| Year one | 20% down | 25% down | 40% down | All cash |
|---|---|---|---|---|
| Down payment | $60,000 | $75,000 | $120,000 | $300,000 |
| Loan amount | $240,000 | $225,000 | $180,000 | $0 |
| Monthly principal and interest | $1,596.73 | $1,496.93 | $1,197.54 | $0 |
| Annual debt service | $19,161 | $17,963 | $14,371 | $0 |
| Annual cash flow (NOI $19,200 − debt service) | $39 | $1,237 | $4,829 | $19,200 |
| Cash-on-cash return | 0.07% | 1.65% | 4.02% | 6.40% |
| DSCR | 1.00 | 1.07 | 1.34 | n/a |
| Year-one principal paydown | $2,438 | $2,286 | $1,828 | $0 |
| Appreciation at 3% | $9,000 | $9,000 | $9,000 | $9,000 |
| Year-one total return | $11,477 | $12,522 | $15,658 | $28,200 |
| Total return on cash invested | 19.13% | 16.70% | 13.05% | 9.40% |
Reading the table
At 25% down, the $225,000 loan costs $1,496.93 a month, or $17,963 a year. $19,200 − $17,963 leaves $1,237 of cash flow, and $1,237 ÷ $75,000 = 1.65% cash-on-cash. DSCR is $19,200 ÷ $17,963 = 1.07. About $2,286 of the year’s payments reduce principal, and 3% appreciation adds $9,000, so the year-one total is $1,237 + $2,286 + $9,000 = $12,522, or 16.70% of the $75,000 invested.
Two things stand out. First, cash-on-cash return rises as you put more down: 0.07% at 20% down, 4.02% at 40%, 6.40% all cash. That is negative leverage. The loan constant at 7% for 30 years is about 7.98% ($17,963 ÷ $225,000), higher than the 6.4% cap rate, so every borrowed dollar costs more than the property earns on it. Second, total return on cash falls as you put more down (19.13% at 20% down versus 9.40% all cash), but only because of the assumed appreciation and principal paydown. With zero appreciation, the 20% down buyer’s total is $39 + $2,438 = $2,477, or 4.13%, below the all-cash 6.40%.
The 20% down scenario also has a DSCR of 1.00: any vacancy or repair turns the year negative, and many DSCR lenders would not approve it. More leverage means a higher potential return only if prices rise, and a thinner margin either way. Our article on cash vs leverage in real estate walks through the longer-term version of this trade-off.
Interest rate sensitivity
Rates move the result more than most other inputs. Same property and NOI, 25% down ($225,000 loan), 30-year term:
| Rate | Monthly P&I | Annual debt service | Cash flow (cash-on-cash) | DSCR |
|---|---|---|---|---|
| 6% | $1,348.99 | $16,188 | $3,012 (4.02%) | 1.19 |
| 7% | $1,496.93 | $17,963 | $1,237 (1.65%) | 1.07 |
| 8% | $1,650.97 | $19,812 | −$612 (−0.82%) | 0.97 |
Each percentage point changes the payment by roughly $150 a month on this loan, about $1,800 a year, which here is the difference between a modest profit and a loss. Practical implications:
- Underwrite at the rate you can actually lock, not the advertised rate, and include investment-property pricing adjustments.
- For adjustable, balloon or short-term loans, test the deal at the rate it could reset to, and at least one to two points higher.
- Don’t buy a negative-cash-flow property on the assumption you can refinance when rates fall. If you do plan to refinance later, the refinance calculator and our guide on when to refinance a rental show how to check whether it pays.
- Points paid to buy down a rate only pay off if you keep the loan long enough; compare the up-front cost with the monthly saving.
Reserves lenders ask for
Lenders want evidence that you can keep paying through a vacancy or repair. Requirements vary by program and change over time. As one published example, Fannie Mae’s Selling Guide B3-4.1-01 requires six months of reserves (measured in monthly principal, interest, taxes, insurance and association dues) for investment property transactions underwritten through its Desktop Underwriter system, plus additional reserves equal to 2% of the unpaid balance on your other financed properties if you have one to four, 4% for five to six, and 6% for seven to ten. DSCR and portfolio lenders set their own rules, commonly a few months of payments.
Reserves usually must be liquid or near-liquid: checking, savings, brokerage and sometimes a portion of retirement accounts. Lender reserves are a qualification test, not a maintenance budget. Most landlords also keep their own reserve sized to the property’s age and the capital items coming due.
When to use each option
| Option | Best fit | Watch out for |
|---|---|---|
| Conventional | Stabilised 1–4 unit property, documented W-2 or steady income | Financed-property limits, debt-to-income, investment pricing adjustments |
| DSCR | Self-employed, many properties, buying in an LLC | Higher rate and fees, prepayment penalties |
| Portfolio | Unusual properties, blanket loans, local relationships | Adjustable rates, balloons, deposit requirements |
| Hard money | Distressed purchase with a rehab and a clear refinance or sale | High cost, short term, delays and low appraisals |
| Seller financing | Motivated seller, property hard to finance, flexible terms | Balloon dates, the seller’s existing mortgage, legal compliance |
| HELOC | Short-term down payment or bridge with a plan to repay | Your home as collateral, variable rate, payment stacking |
For a deeper side-by-side on the three most common choices, read traditional vs portfolio vs hard money loans. To compare loan types in the context of entity and management choices, see the investment comparison tool.
Common financing mistakes
- Choosing the loan before checking the cap rate. If the cap rate is below the loan constant, more leverage reduces your cash return.
- Counting appreciation as a reason to accept negative cash flow. You have to fund the shortfall every month whether or not prices rise.
- Forgetting closing costs, points and prepayment penalties when comparing loans. A lower rate with higher fees can cost more over a short hold.
- Stacking a HELOC and a high-LTV mortgage so that the property is effectively 100% financed with no cushion.
- Treating a hard money exit as certain. Build in time and cost for a slow rehab and a lower appraisal.
- Ignoring the end of the hold. Your loan balance and the tax on a sale decide what you walk away with. The keep-or-sell calculator compares selling, exchanging and holding for a property you already own.
Preparing to apply
Investor loans move faster when the paperwork is ready before you make an offer. Gather two years of tax returns (including Schedule E if you already own rentals), recent bank and brokerage statements showing your down payment and reserves, current leases and a rent roll for any property you own, and your mortgage statements. For DSCR loans, expect the lender to order an appraisal with a rent schedule, so check the market rent yourself with the rent estimator first. Get quotes from at least three lenders on the same day, compare the loan estimates line by line (rate, points, lender fees and any prepayment terms), and ask each lender how they treat the property’s rent when they calculate your qualifying income or ratio.
Tax points to raise with your CPA
Mortgage interest on a rental is generally a deductible rental expense. IRS Publication 527 notes that points are prepaid interest and generally can’t be deducted in full in the year paid; they are spread over the life of the loan. If you refinance and take out more than the old balance, interest on the portion not used for the rental generally can’t be deducted as a rental expense. How interest on a HELOC or other borrowing is treated generally depends on how the money is used, so get advice before you draw.
Related tools and guides
- Rental ROI calculator
- House hacking calculator
- Portfolio scaling playbook
- How to build a rental portfolio
General information, not lending, legal or tax advice. Loan programs, rates and reserve rules change and differ by lender; confirm current terms with lenders and consult a licensed professional for your situation.