About two out of every three new home loans in the U.S. is a conventional mortgage, which means nearly everyone shopping for one is competing against the same pool of buyers for the same houses. What separates a good outcome from a mediocre one usually isn’t the rate you see advertised. It’s the lender behind it, and whether that lender prices your specific file well or just hands you a generic quote and hopes you don’t call anyone else.
Conventional pricing is more lender-sensitive than almost any other loan type. Fannie Mae and Freddie Mac set the baseline cost, but every bank, credit union, and online broker adds its own margin, its own fee stack, and its own underwriting overlays on top. On a $400,000 loan, the spread between a sharp quote and a lazy one is routinely half a point in rate. That’s roughly $140 a month, or $50,000 over the life of a 30-year loan.
What actually makes a loan “conventional”
Conventional means the loan isn’t insured by the federal government. No FHA mortgage insurance premium, no VA funding fee, no USDA guarantee fee. Fannie and Freddie buy these loans from lenders, package them into securities, and sell them to investors, which is why the rules are standardized and the pricing is transparent if you know where to look.
A few structural details matter more than most borrowers realize:
- Down payment: 3% is the floor through Fannie’s HomeReady and Freddie’s Home Possible programs, both income-capped. Otherwise 5% is the practical minimum for most first-timers.
- Credit: 620 is the usual cutoff, though a 740 score can cut your rate by 0.5% or more versus a 660.
- Loan limit: $806,450 for a single unit in most of the country for 2025. Above that you’re in jumbo territory and the lender pool shrinks fast.
- Mortgage insurance: Required below 20% down, but unlike FHA it’s cancellable. You can request removal at 80% loan-to-value and the lender must drop it automatically at 78%.
That last point is the single biggest financial argument for conventional over FHA, and it’s worth running the numbers both ways. If your credit is in the 700s, comparing FHA lenders who approve the 3.5% down against conventional options usually reveals conventional wins on total cost within four or five years.
The lenders that consistently get conventional loans right
Rocket Mortgage — fast, consistent, rarely the cheapest
Rocket is the largest retail mortgage lender in the country and it earned that position with process, not price. The application is genuinely easy, the document upload works, and closing timelines are predictable. Where Rocket loses is on rate: its quotes tend to sit slightly above the sharpest wholesale pricing. If you value a smooth closing over squeezing out the last eighth of a point, it’s a reasonable pick. If you’re rate-sensitive, use it as one of three quotes and let it set a benchmark.
Better.com and the low-margin online shops
The online-only model strips out commission layers and passes some of that back as lender credits. On a clean W-2 file with 20% down and a 760 score, these lenders are often within a hair of the best available pricing. They get shakier on complicated files: recent job changes, self-employment income, condo projects that need warranting. Ask up front whether they underwrite in-house and how many days their average conventional purchase takes to close. Twenty-one days is good. Thirty-five is a warning.
Big banks, for relationship pricing
Chase, U.S. Bank, and similar institutions publish rates that look uncompetitive until you factor in relationship discounts. Moving $250,000 in assets to the bank can knock 0.25% to 0.375% off the rate, and some waive the origination fee entirely. On a large loan that easily beats a broker’s wholesale quote. The catch: these discounts usually require the assets to stay put for a set period, and bank underwriting tends to be slower and stricter on documentation.
Credit unions and small portfolio lenders
This is where conventional shopping gets interesting. Some credit unions hold loans on their own books rather than selling them to Fannie, which means they can offer things the agencies won’t touch, like no-PMI conventional loans at 90% LTV or manual underwriting for borrowers with a thin credit file but plenty of cash. Membership requirements are usually a zip code, an employer, or a small donation. It’s worth 20 minutes to check whether you qualify for one.
Mortgage brokers, for wholesale access
A broker shops your file across dozens of wholesale lenders and typically charges 1% origination. On straightforward files that fee often eats the savings. On harder files (recently self-employed, a non-warrantable condo, a credit blip from three years ago) a good broker can find a lender whose overlays actually allow the loan, which is worth far more than the fee. If you’re self-employed and tired of automated denials, lenders that underwrite self-employed borrowers by hand rather than by algorithm are a different list entirely.
The pricing levers nobody mentions until you ask
Two borrowers with identical credit scores can get quotes 0.75% apart because of loan-level price adjustments most people never hear about. Condos carry a hit. Second homes carry a bigger one. Investment properties carry the largest. Cash-out refinances price worse than purchases. A debt-to-income ratio above 40% can add cost even when you’re approved.
Then there’s the points conversation. A quote showing 6.25% with two points is not the same product as 6.5% with a $3,000 lender credit. Ask every lender for the same three things: the rate with zero points, the rate with one point, and the total closing costs on a Loan Estimate. Compare those side by side and the picture gets clear fast. Borrowers who are putting very little down should also check which lenders actually deliver on low down payment programs, because advertised 3% down products often come with income limits and mandatory homebuyer education that the marketing page skips.
Five questions to ask before you send anyone your documents
- Do you underwrite in-house, or do you broker my file out after approval?
- What’s your average days-to-close on a conventional purchase over the last 90 days?
- Which lender overlays do you apply beyond Fannie’s guidelines?
- If rates drop after I lock, do you offer a float-down, and what does it cost?
- Will my loan be serviced here, or sold? Who do I call in month seven?
That last one matters more than people expect. Servicing transfers are routine, but a lender that keeps its own servicing tends to be easier to work with when you need a payoff statement, a PMI removal letter, or a straight answer about escrow.
What to do in the two weeks before you apply
Get three Loan Estimates on the same day, for the same loan amount, on the same property. That’s the only way to compare apples to apples, since pricing shifts daily with the bond market. Don’t open new credit, don’t move money between accounts without a paper trail, and don’t co-sign anything for anyone. Gather two years of tax returns, two recent pay stubs, and 60 days of statements for every account holding your down payment.
If you’re a veteran with entitlement available, run a conventional quote against a VA quote before you commit, since VA pricing often undercuts conventional at low down payments even with the funding fee. Lenders that genuinely understand VA underwriting can close those in under 30 days in most markets. Outside city limits, a zero-down rural option may beat both.
One last piece of practical advice: lock when the quote is good and you’re within 60 days of closing, not when the rate hits a number you saw in a headline. The best conventional lender for you is the one that answers the phone in week five, prices your specific file honestly, and puts the loan estimate in writing before you commit to anything. Everything else is marketing.