How rates work

Why two borrowers rarely get the same rate.

You and your neighbor could use the same lender, the same loan program, on the same day, and still walk away with different rates. Here is why, and what it means for how you evaluate your own quote.

The rates and costs on this page are illustrations chosen to explain the math. They are not quotes. Real pricing changes daily and varies by lender, loan program, and scenario.

Don’t have much time?See the key points
  1. Published mortgage rates are usually examples or averages built around assumptions that may not match a specific borrower.
  2. Credit, equity, property, occupancy, loan size, and loan structure can all affect pricing.
  3. Multiple pricing adjustments can combine, so the final result reflects the full scenario rather than one factor.
  4. Bond-market movement means the same scenario can receive different pricing on different days.
  5. Even on the same day, points and credits can change the rate attached to an otherwise similar loan.
01The myth of "the rate"

There is no single mortgage rate.

When you hear a rate quoted in the news, see one advertised online, or hear what a friend was offered, that number is almost certainly based on a set of assumptions that do not match your situation. Averages reported in the media typically reflect a borrower with excellent credit, a large down payment, a single-family primary residence, and a conforming loan amount. They also rarely disclose what costs were associated with that rate, whether points were paid to buy it down or whether lender credits inflated it. Change any one of those variables and the rate changes with it.

This does not mean those numbers are wrong. It means they are not yours. Your rate is determined by a combination of factors specific to you, your property, and your loan structure. Understanding what those factors are helps you evaluate whether the quote you receive makes sense for your situation.

Why comparisons mislead

When someone says "rates are at X percent this week," they usually mean an average for a borrower with strong credit and a substantial down payment. Your own quote depends on your credit, your loan size, your property, and the day you lock. It can be meaningfully different from any headline number. You also have no way of knowing whether a quoted rate includes discount points or other costs that were paid to achieve it.

02The factors that make your rate yours

Eight variables that move your individual mortgage rate.

Lenders and investors use a system of pricing adjustments (often called loan-level price adjustments or LLPAs) to account for the risk profile of each individual loan. These adjustments add to or subtract from a base rate depending on where you fall on each factor. The result is a rate that reflects your specific combination of characteristics.

03The Factors

How mortgage rate adjustments are cumulative.

You do not get hit on just one factor. Pricing adjustments layer on top of each other. A borrower with a lower credit score who is also putting less down, buying a condo, and using it as an investment property is stacking multiple adjustments. Each one adds cost independently.

Illustrative comparison (same day, same lender)

Borrower A

  • 760 credit score
  • 75% LTV
  • Single-family home
  • Primary residence
  • Purchase

Minimal pricing adjustments

Borrower B

  • 680 credit score
  • 80% LTV
  • Condo
  • Investment property
  • Purchase

Multiple stacked adjustments

Both borrowers could walk into the same lender on the same morning. Borrower A might receive a rate meaningfully lower than Borrower B, not because of different lenders or different markets, but because of the cumulative effect of their individual risk factors.

The takeaway

Comparing your rate to someone else's without knowing their full profile (credit, LTV, property type, occupancy, loan purpose, and loan size) is comparing apples to oranges. The only meaningful comparison is one where every variable is accounted for.

04The timing factor

Same scenario, different day, different mortgage rate.

Even if your friend had the exact same credit score, the exact same down payment, the exact same property type, and was even working with the exact same lender, the rate pricing could be different depending on the time of day or the day of the week that the rate was locked. Mortgage pricing moves with the bond market, and the bond market moves constantly.

10-Year U.S. Treasury Yield, Apr 1 to Apr 19, 2024

This is not a mortgage rate. It is the 10-year Treasury yield. Mortgage-backed securities trading mirrors this movement on an intraday basis, meaning your mortgage rate pricing moves with it. Source: FRED, Federal Reserve Board.

Over this 15-day stretch, the 10-year Treasury moved more than a third of a percentage point from low to high. On April 9 to 10 alone it jumped nearly a fifth of a percentage point in a single day. A borrower locking on April 4 would have seen meaningfully different pricing than one locking on April 16. Neither did anything wrong. The market simply moved.

What this means for you

If someone mentions a rate they received last week, that rate reflected a different market than today. Even morning and afternoon pricing can differ on the same day. Rate comparisons are most meaningful when they come from the same timeframe and the same market conditions.

05Loan design choices

Same profile. Same day. Still different rates.

Even with the same borrower profile and the same market moment, the rate you are quoted depends on how the loan is designed. Two people with identical scenarios can receive different rate numbers because one is paying for a lower rate and the other is taking credits for a higher one.

Is it a par rate (the rate with no discount points and no lender credits)?

Middle-ground scenario. No extra cost, no credits applied

Are there discount points?

Lower rate, higher cash to close

Is borrower-paid compensation included?

Lower rate, higher cash to close

Are there lender credits?

Higher rate, lower cash to close

The point

A rate number without context is meaningless. Two quotes can only be compared if you understand what is included in each one. A lower rate is not automatically a better deal if it comes with thousands in upfront costs.

06Getting a real quote

The only way to know your mortgage rate is to get a personalized quote.

No online calculator, no headline, no friend's anecdote can tell you what your rate will be. The only way to get a true quote is to have a lender price your specific scenario: your credit, your property, your loan amount, your down payment, your occupancy, your loan purpose, on a specific day.

When you get a quote, make sure you understand:

  • Is this a par rate (no points, no credits), or are discount points included?
  • Are there origination fees or borrower-paid compensation built into the rate?
  • Are there lender credits reducing my closing costs in exchange for a higher rate?
  • What is the total cost picture, not just the rate number?
  • What is the lock period and when does it expire?

A rate without context is just a number

The rate itself does not tell you whether the deal is good or bad. The rate combined with the costs, credits, and structure of the loan tells the full story. Always ask for the complete picture.

07Takeaways

What to remember about mortgage rates.

  • Rates quoted in the news, online, or by friends are based on assumptions that almost certainly do not match your scenario.
  • Your individual rate is determined by a combination of factors: credit score, LTV, property type, occupancy, loan program, loan purpose, and loan size.
  • These pricing adjustments are cumulative. Multiple risk factors stack on top of each other.
  • Even with the exact same scenario, rates can differ depending on the day or time of day the rate is locked. Markets move constantly.
  • Even on the same day with the same profile, loan design choices (par, points, credits, compensation structure) produce different rate numbers.
  • The only way to get a true quote is a personalized one for your specific scenario. Make sure you understand what is included.
  • Someone else's rate reflects their scenario, their timing, and their loan design , which are almost certainly different from yours. The most useful comparison is a personalized quote for your own situation.