What is a conventional loan? The complete guide

The default mortgage for most buyers: what it takes to qualify, the 20%-down myth, how PMI actually cancels, and where conforming ends and jumbo begins.

The conventional loan is the one most buyers end up with — the default of the mortgage world, and the baseline every other loan gets measured against. It's easiest to define by what it isn't: it's not insured or guaranteed by a government program. Everything else flows from that. It's also the loan with the single most persistent myth in all of homebuying attached to it — that you need 20% down — and that myth quietly talks people out of homes they could afford. This guide walks what a conventional loan really requires, how its mortgage insurance actually works (and disappears), and when it's the right call versus FHA or VA.

What a conventional loan is

A conventional loan is any mortgage not backed by a government program like FHA, VA, or USDA. It's the standard private-market home loan — and because no government agency insures it, the lender carries the risk directly. That's the key to everything: your full financial profile matters more on a conventional loan, because there's no government guarantee softening the lender's exposure.

Most conventional loans are written to the standards of Fannie Mae and Freddie Mac — two government-sponsored enterprises that buy conforming loans from lenders and package them for investors, which frees lenders to keep lending. Fannie and Freddie don't lend to you directly; they write the rulebook and set the limits.

Conventional vs. conforming vs. jumbo

These three words get blurred together, and the distinction actually matters:

Conventional = not government-backed.
Conforming = a conventional loan that meets Fannie/Freddie guidelines and stays under the annual loan limit.
Jumbo = a conventional loan that's too large to be conforming — it exceeds the limit, so Fannie and Freddie won't buy it, and it follows stricter private rules (higher credit, bigger down payment, more reserves).

So every conforming loan is conventional, but not every conventional loan is conforming. Most buyers land in the conforming bucket; you only cross into jumbo on higher-priced homes.

The 20% down payment myth

Let's kill the biggest one first. You do not need 20% down for a conventional loan. This is the most stubborn myth in homebuying, and it keeps would-be buyers renting for years longer than they need to.

Here's what's actually required:

3% down through special programs — Fannie's HomeReady, Freddie's Home Possible, and the Conventional 97 — for eligible buyers (often with income limits or a homebuyer-education requirement).
5% down is the standard minimum for a typical conventional loan on a primary residence.
20% down isn't a requirement to get the loan — it's simply the threshold where you skip mortgage insurance.

For perspective: in the National Association of Realtors' 2025 buyer survey, the median down payment was 10% for first-time buyers and 23% for repeat buyers (NAR 2025 Profile of Home Buyers and Sellers) — so the typical first-time buyer puts down half of 20%. Plenty of people buy with far less. The 20% figure is a goal that avoids PMI, not a gate you have to clear to qualify.

Credit: the honest 2026 picture

Conventional loans price hard on credit — more so than FHA. Here's the current reality, including a recent change:

Historically, conforming conventional loans required a 620 minimum credit score. As of late 2025/2026, Fannie and Freddie no longer enforce a single hard floor in their automated underwriting — they evaluate your whole financial picture instead. But don't over-read that: credit still drives everything. In practice, lenders still treat 620 as a working baseline, and pricing improves meaningfully as you climb — a borrower at 740+ gets the best rates and the lowest PMI, while 620-739 borrowers qualify every day but on less sharp terms.

The takeaway: conventional rewards strong credit more than any other loan type. If your score is high, conventional is often your cheapest option. If it's low, FHA may treat you better — which is exactly the decision we'll get to.

PMI: how it works, and why it's the whole story

This is the most important section, because conventional's mortgage insurance is its defining advantage over FHA — not a drawback.

If you put less than 20% down, you'll pay private mortgage insurance (PMI) — it protects the lender against default, and it's priced on your credit score, down payment, and loan-to-value. But here's what makes it different from FHA's MIP: conventional PMI is removable. It does not last the life of the loan.

There are several ways it comes off:

Under federal law you can request removal at 80% of the original value, and it ends automatically at 78%. Some loans also allow removal based on a new appraisal after a seasoning period — ask your servicer.
Midpoint termination. On a 30-year loan, PMI must come off by month 180 regardless of LTV.

And conventional has no upfront mortgage-insurance fee — you skip FHA's 1.75% upfront premium entirely.

Why this matters so much

Compare it to FHA: on most FHA loans (under 10% down), the mortgage insurance lasts the life of the loan — the only escape is refinancing. On conventional, PMI is a temporary cost that falls away as you build equity. For a borrower with decent credit, that single difference is why conventional is frequently cheaper over time even when FHA looks easier up front. (For the mechanics of getting PMI removed, see How to actually get rid of PMI; for the FHA-vs-conventional insurance comparison, see PMI vs MIP.)

A worked example: PMI that disappears

Hypothetical example — illustrative rate, not a quote or offer of credit.

Say you buy a $350,000 home with 5% down and a ~720 score (illustrative 6.5% rate):

Down payment (5%): $17,500
Loan amount: $332,500
Principal & interest: ~$2,102/month
PMI (illustrative ~0.5%): ~$139/month
Payment while PMI applies: ~$2,240/month

Now the key part: once you pay down to $280,000 (80% of the original value) — through regular payments or extra principal — you can request PMI removal, and your payment drops to ~$2,102/month. That's ~$139 a month back in your pocket, permanently. On an FHA loan with under 10% down, that insurance would never have gone away. That's the conventional advantage in one number. (Figures illustrative; your real numbers come from a Loan Estimate — you can ballpark your own with the monthly cost calculator.)

Conforming loan limits (2026)

The line between conforming and jumbo is the conforming loan limit, set annually by the FHFA. For 2026, the single-unit limit is $832,750 in most counties, rising to $1,249,125 in high-cost areas (parts of California, the Northeast, Hawaii, Alaska, and other expensive markets).

At or below the limit, your loan is conforming and follows Fannie/Freddie rules — generally the friendliest pricing. Cross above it and you're in jumbo territory: larger loans, stricter standards (higher credit, bigger down payments, more cash reserves), and different pricing. If you're buying near the limit, even a small change in price or down payment can move you between conforming and jumbo, so it's worth knowing your county's number before you structure an offer.

Property flexibility: a real conventional edge

One advantage that gets overlooked: conventional loans are far more flexible about what and how you buy.

Primary residences, second homes, AND investment properties all qualify — where FHA and VA are primary-residence only. If you're buying a vacation home or a rental, conventional is usually your path.
More condos qualify than under FHA's stricter approved-project rules.
Less rigid property-condition standards make it easier to finance a home that wouldn't pass an FHA appraisal.

For a buyer with options, that flexibility — second homes, investment property, a wider range of condos and fixer-uppers — is a genuine reason conventional wins beyond just the insurance math.

The myths worth clearing up

1. "You need 20% down."

The big one, worth repeating: false. As little as 3% through HomeReady, Home Possible, or Conventional 97; 5% standard. Twenty percent eliminates PMI — it's not required to get the loan. This myth costs people years of waiting.

2. "You need perfect credit / 620 is a hard wall."

The minimum has historically been around 620, and while Fannie Mae and Freddie Mac removed the hard floor in November 2025, 620-to-739 borrowers qualify every day. A 740+ score gets the sharpest pricing, but you don't need flawless credit to use a conventional loan — you need a solid, clean file. Stronger reserves or a bigger down payment can offset a lower score.

3. "Conventional is only for wealthy buyers."

No. With 3-5% down options and no income cap on standard conventional loans, it's a mainstream first-time-buyer product, not a luxury one. The "conventional = rich people" idea is just the 20%-down myth wearing a different hat.

Conventional vs. FHA vs. VA: when it wins

Here's the honest decision framing:

Choose VA if you're eligible. $0 down, no monthly insurance — for those who qualify, it almost always beats conventional. Explore it first.
Conventional tends to win when your credit is strong (≈700+) and you can put down at least 5%. The reason is PMI: it cancels, FHA's MIP usually doesn't, and you skip FHA's upfront fee. Over time, conventional is frequently the cheapest path for good-credit borrowers — plus it's your only option for a second home or investment property.
FHA tends to win when your credit is lower (below ~680) or your savings are thin. FHA's easier approval is worth the lifetime-MIP trade-off when conventional is out of reach — with a plan to refinance to conventional later.

The cleanest way to think about it: FHA gets you in when conventional can't; conventional costs less to stay in when you qualify. If you can do conventional, compare the two on total cost, not just the rate or the down payment. (See Conventional vs FHA for the side-by-side.)

Questions to ask before you commit

With my exact credit score, what's my rate and PMI on a conventional loan — and how does that compare to FHA?
What's the lowest down payment I qualify for (3%, 5%), and do I meet the income limits for a 3%-down program?
When would my PMI cancel, and what would it take to remove it early?
Is my loan amount conforming, or am I bumping into jumbo territory?
If I'm buying a second home or investment property, are we structuring this correctly as conventional?

The takeaway

The conventional loan is the private-market standard: backed by Fannie and Freddie when it's conforming, friendliest to solid credit, with mortgage insurance that falls away over time instead of lingering. If your credit and down payment are in good shape, it's usually the most efficient way to borrow — and far more accessible than the 20%-down myth would have you believe. You don't need to be wealthy or put down a fifth of the price. You need a solid file, a few percent down, and a clear-eyed comparison against your other options.

Sources

Conforming limits, PMI rules, and credit/DTI thresholds are set by Fannie Mae, Freddie Mac, and the FHFA and change over time. The figures in this guide are current for 2026 and the worked example uses illustrative rate and PMI numbers. Confirm the current numbers for your situation with a licensed lender before making decisions.