Conventional Loan Limits: Down Payment Myths Debunked

Trying to sort out conventional loan rules can feel like slogging through a maze—especially when you start hearing so many “absolutes” about down payments and limits that just aren’t true. Conventional loan limits set a maximum amount you can borrow before you need a jumbo loan, and the minimum down payment is often less than most people expect. In this article, I’ll separate fact from fiction on loan limits and down payment requirements, so you know exactly what to expect in Multnomah County and surrounding areas.

Quick Answers: Common Myths and Realities

• Do I really need 20% down for a conventional loan?
  No—you can often qualify with much less, sometimes as little as 3% down for first-time buyers.
• If my loan is over the conventional limit, what happens?
  Your mortgage gets classified as a jumbo loan, which comes with different rules, rates, and guidelines.
• Are limits the same all over Oregon and Washington?
  No, conventional loan limits vary by county and change periodically. Check current limits for your county.
• Does a smaller down payment always mean higher monthly costs?
  Usually, yes—putting less down can mean mortgage insurance and sometimes a slightly higher rate, but not always by much.

What Is a Conventional Loan Limit?

To keep it simple, conventional loan limits are caps set by federal guidelines on how much you can borrow with standard loan programs like Fannie Mae or Freddie Mac. Once you exceed those limits, your loan is considered “jumbo,” which has its own set of rules.

As of 2026, these limits vary from county to county. For the Portland area—including Multnomah, Clackamas, and Washington counties—the numbers may be higher than in more rural parts of Oregon or Washington. King County and Clark County also tend to have higher limits due to local home prices.

At Michael King (NMLS# 274357), I help folks sort through the current numbers and how they impact their buying power—no surprises later, here is what I can offer you based on your scenario.

Big Myth #1: “You Have to Put Down 20% on a Conventional Loan”

This comes up more often than almost anything else: Folks hear from friends or family that they’ll need 20% down, or there’s no way they’ll get approved. Let’s set this one straight right away. The minimum down payment for a conventional loan can be as low as 3%—especially for first-time buyers or those qualifying for specific programs.

Put simply, if you’ve got good credit and stable income, you might be looking at a much smaller upfront cash requirement than you expect. Yes, less than 20% means private mortgage insurance (PMI) gets added to your payment—but it’s not forever. Once you build enough equity, the insurance can usually be dropped.

When Do You Really Need 20% Down?

• If you want to avoid PMI from the start, 20% is the sweet spot.
• Some special property types or unique borrower scenarios might require a higher down payment—multi-units, certain investment properties, or if your credit history is more limited.
• If you’re looking at a jumbo loan, the rules can change; often more cash upfront is required.

Big Myth #2: “Loan Limits Are the Same Everywhere”

They’re not—and this can trip up buyers who hear a number from a friend in a different county. Conventional loan limits are set annually and vary by county, based on local home prices. Urban areas like Portland suburbs or King County often see higher max loan amounts than more rural communities.

So, if you’re house hunting in Multnomah, Clackamas, Washington, or even across the river in Clark County, check the current limits for your location.

If your purchase price puts you over the limit for your county, you’re looking at a jumbo loan program instead. Those guidelines aren’t necessarily more difficult, just different.

How Do I Know If I’m Over the Limit?

Lets run some numbers based on your specific property type and county. I can quickly show you what the current cap is for your area.

Conventional Down Payment Options—What’s Possible?

Options have come a long way in the last decade, so here is what I can offer you today:

• 3% Down – Available for qualified first-time buyers, some homeownership programs, and certain income brackets.
• 5% Down – Very common for both first-time and repeat buyers; flexible property types qualify.
• 10% or 15% Down – Sometimes a good fit to reduce mortgage insurance costs but not required for most scenarios.
• 20% Down – Required only if you want no mortgage insurance from day one, or for select property/investor purchases.

VA and FHA loans have their own unique requirements—if a conventional mortgage isn’t the best fit, you might want to check my VA, Conventional, or FHA program guide for a comparison.

PMI: What to Expect if You Put Less Than 20% Down

Private mortgage insurance isn’t a penalty—it’s a way to access homeownership with less cash, and the cost is typically based on your loan size, down payment, and credit profile. Rates and coverage rules often change, but the important thing is that PMI can generally be removed once you reach a certain home equity threshold, usually 20%.

If you want a deeper look at how PMI works, I can break down the numbers based on your specific home buying plan.

How the Approval Process Works: Step by Step

1. Pre-Approval – We look at your income, credit, assets, and run some numbers to see your buying power.
2. Find a Home – Work with your agent to make offers, keeping loan limits in mind for your county.
3. Lock Rates, Submit Offer – Your pre-approval gives you confidence and competitive edge.
4. Underwriting – Documents are reviewed; conditions are cleared as you move toward closing.
5. Closing – You review the final figures (no surprises), sign, and receive your keys.

Timelines can be quick—many closings happen in 3–5 weeks, but unique property types or income sources can add time. If you’re self-employed or using bank statement loans, expect a little more documentation and possibly a longer window.

Who Are Conventional Loans Right For?

These programs work well for buyers in a wide range of scenarios:

• First-time buyers ready to purchase in Multnomah County, Clackamas, Washington, or the surrounding area with a lower down payment.
• Move-up buyers leveraging equity from their current home.
• Veterans who like flexible loan options—though VA loans often have unique advantages.
• Investors looking for straightforward financing (talk to me about current rules for rentals or multi-units).

There are other products I work with as well—like bank statement loans for self-employed or commission borrowers—if conventional isn’t the best fit.

Summary: What Should You Do Next?

If you’ve been told you “have to” put down 20% or your county limit is fixed, now you know the real story. If you’d like to see how your scenario and local loan limits intersect, get in touch—we’ll run the numbers together and map out a plan.

Call, text, or email me at Mortgage Solutions NW. Let’s get started with your pre-approval planning or a straightforward side-by-side quote. I’ll make sure you’re clear on requirements, options, and the numbers before you even write an offer—no surprises.

Frequently Asked Questions

This is educational and not financial advice. Loan programs and guidelines can change. Talk with a licensed mortgage professional about your specific scenario.

About the Author

Michael King

Loan consultant at Mortgage Solutions NW · NMLS #274357

Michael has helped over 3,000 families finance their dream home or refinance across Oregon and Washington.

Specializes in: VA, Conventional, FHA,

Licensed in: OR, WA

→ Contact → 503-516-9119 → Verify NMLS license