So you've been thinking about buying a rental property. Maybe you want a little extra income each month, or you're thinking longer-term about building equity in something beyond your own home. Either way, it's a smart thing to explore — but investment property loans work differently than the mortgage you used (or plan to use) for your primary home. Here's what to expect before you start making offers.

The Down Payment Is Higher

This is usually the first thing that surprises people. When you buy a home to live in, you can put as little as 3% down with a conventional loan. Investment properties don't get that same treatment.

For a single-family rental, most lenders require at least 15% down, and many prefer 20–25%. The reason is straightforward: lenders see investment properties as higher risk. If things get tight financially, most people will prioritize their own home over a rental. A larger down payment gives the lender a cushion.

The good news: if you're buying a 2–4 unit property and plan to live in one of the units, you may qualify under different rules — sometimes with as little as 3.5% down using an FHA loan. That strategy is often called "house hacking," and it's one of the most accessible ways to get started as a first-time investor.

Your Credit Score Matters More Here

For a primary home purchase, a 620 credit score can get you into a conventional loan. For an investment property, most lenders want to see 680 or higher, and a score above 720 will get you meaningfully better pricing.

Why the difference? Again, it comes down to risk. Lenders price investment property loans more carefully, and your credit score is one of the main levers they use to set your rate. A lower score doesn't necessarily disqualify you, but it will cost you more each month.

If your score isn't quite there yet, it's worth spending a few months improving it before you apply. Paying down revolving balances and making sure there are no errors on your report are two of the fastest ways to move the needle.

Expect a Higher Interest Rate

Even with a strong credit score and a solid down payment, the rate on an investment property loan will typically run 0.5% to 0.75% higher than what you'd see on a comparable primary home loan. That's just how investment property pricing works — it's built into the loan structure, not a penalty for anything you did wrong.

Over a 30-year loan, that difference adds up. It's worth running the numbers carefully to make sure the rental income you're projecting actually covers the mortgage, taxes, insurance, and maintenance — with something left over.

Lenders Count Rental Income Differently Than You Might Expect

Here's something that catches a lot of first-time investors off guard: you can't always use the full projected rent to offset your mortgage payment on paper.

Many lenders apply a vacancy factor — typically around 25% — to your projected rental income before counting it toward your qualifying ratios. So if you expect $2,000/month in rent, the lender might only credit you $1,500 when calculating your debt-to-income ratio. This is a conservative assumption that accounts for the reality that properties aren't always occupied.

If you already own a rental property with a documented rental history (usually two years of tax returns showing Schedule E income), lenders are generally more flexible. But for a first investment property with no rental history, expect the conservative approach.

Reserves: You'll Need More of Them

On a primary home purchase, some loan programs require little to no cash reserves after closing. Investment property loans are different — most lenders want to see several months of mortgage payments sitting in your account after you close.

The exact requirement varies by lender and loan type, but having 6 months of reserves for the investment property (and sometimes for your primary home too) is a reasonable target to plan around. This isn't money you spend — it's money you need to show you have.

The logic makes sense: if the property sits vacant for a month or two, or needs an unexpected repair, you should be able to cover the mortgage without missing a payment.

A Quick Checklist Before You Apply

Here's a practical summary of what to have in order before you start the loan process for an investment property:

• Credit score of 680 or higher (720+ for the best pricing)
• 15–25% down payment ready (or 3.5% if you're house hacking with FHA)
• 6 months of reserves for the investment property mortgage
• Stable income documentation — two years of W-2s or tax returns
• A realistic rental income estimate — ideally from a local property manager or comparable listings, not just a best-case scenario
• A clear picture of your total monthly costs — mortgage, taxes, insurance, HOA if applicable, and a maintenance buffer

Is It the Right Move for You?

Investment property loans are more demanding than primary home loans, but they're not out of reach for someone who's prepared. The key is going in with realistic numbers and a clear understanding of what lenders are looking for.

If you're not sure whether your financial picture is ready, that's exactly the kind of question worth talking through before you start making offers. There's no pressure — sometimes the answer is "not quite yet, but here's what to work on," and that's a useful thing to know too.

Feel free to reach out if you want to run through the numbers on a property you're considering.