Guide verification
What we verified in “Mortgage interest rates: fixed, adjustable, points and APR”
This page is the guide’s verification record. Every statement with a rule, a figure or a date appears with the official source behind it, the exact place inside that source and the day we checked it. If a rule changes, we update the guide, this list and the date.
25 checked statements Verified on October 17, 2026 20 official sources
Statements and where we checked them
The statements with rules, figures or dates, with the exact place in the source and the date we checked them.
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According to the CFPB, the interest rate is the cost you pay each year to borrow the money, expressed as a percentage, and it does not reflect fees or other charges for the loan.
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According to the CFPB, the APR is a broader measure of the cost of borrowing than the interest rate: it reflects the rate, points, mortgage broker fees and other charges you pay to get the loan, which is why it is usually higher than your rate; on the Loan Estimate, the rate is on page 1 and the APR on page 3; for an adjustable-rate mortgage the APR does not reflect the maximum rate; take care when comparing the APR of a fixed-rate loan with that of an adjustable-rate loan; and do not look at the APR alone.
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According to the CFPB, each monthly payment is split between principal and interest; the interest part does not reduce your balance or build equity; early in the term you owe more interest because the balance is high, so most of the payment goes to interest; over time more of the payment goes to principal; and on a typical fixed-rate loan the combined principal and interest payment does not change over the life of the loan.
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According to the CFPB, your rate depends on your credit score, down payment, loan term and loan type: a higher credit score generally gets you lower rates; a higher down payment typically lowers your rate; a shorter term generally brings a lower rate because there is less risk to the lender; and if you qualify, VA, USDA or FHA loans can offer lower rates; the rate is important but not the only cost of a mortgage, and Freddie Mac's averages give you an idea of the rates you might be offered.
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According to the CFPB, your credit score and credit report determine whether you can get a mortgage and the rate you will pay; higher scores make you eligible for lower rates; most mortgage lenders use FICO scores, look at all three credit reporting companies and use the middle score to decide your rate; errors on your report can lower your score and raise your rate, so check and correct it well before you apply; and avoid applying for a lot of new credit in a short time before a mortgage.
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According to Freddie Mac, its PMMS survey publishes averages for 30-year and 15-year fixed-rate mortgages; the results come from the rates on thousands of loan applications that lenders across the country submit to it; they are published every Thursday; the national average uses conventional, single-family loans within conforming limits; and its borrower profile is good or excellent credit, 20% down and home purchases of owner-occupied one-unit homes.
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According to the Federal Reserve, changes in the federal funds rate are rapidly reflected in the rates on floating-rate loans, including floating-rate mortgages; rates on longer-term loans depend on expectations of how monetary policy and the economy will evolve over the life of the loan, not just the current federal funds rate; and changes in mortgage rates affect the demand for housing and home prices.
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According to the CFPB, a shorter term (for example, 15 years) means higher monthly payments, typically lower rates and a lower total cost; a longer term (30 years) means lower payments, typically higher rates and a higher total cost; the rate on a shorter term is usually lower, by as much as a full percentage point; and rates vary among lenders, especially for shorter terms.
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According to the CFPB, with a fixed rate the rate and the principal and interest payment stay the same, although the total payment can change if property taxes, homeowners insurance or mortgage insurance go up or down; most borrowers choose fixed rates; most adjustable-rate mortgages (ARMs) have two periods, a fixed introductory period and a second period in which the rate goes up and down with the market, so the principal and interest payment could go up a lot, even double; some ARMs include rate caps; an ARM is less predictable but could be cheaper in the short term, for example if you plan to move within the initial fixed period, but if you stay longer you could pay a lot more.
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According to the CFPB, your lender generally must document and verify your income, employment, assets, debts and credit history to decide whether you can repay; nonqualified mortgages ('non-QM') can be riskier or more expensive and are sometimes marketed to self-employed borrowers or borrowers without Social Security numbers.
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According to the CFPB, with a fixed-rate mortgage the rate is set when you take out the loan and does not change, while with an adjustable-rate mortgage it may go up or down; many ARMs start at a lower rate than fixed-rate loans, which may last months, one year or a few years; after that it changes at regular intervals and your payment is likely to go up; part of the rate is tied to an index; when rates decline your payment sometimes goes down, but not with every ARM; and do not assume you will be able to sell or refinance before the rate changes, because your home's value could decline or your finances could change.
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According to the CFPB, on an adjustable rate the index is a rate that moves with market conditions and the margin is a number set by the lender; when the initial rate ends, index plus margin becomes your new rate, subject to caps; the changes depend on the market, not your personal finances; the margin can vary a lot between lenders and you can negotiate it; and the margin is set in your loan agreement and does not change after closing.
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According to the CFPB, ARMs typically have three caps: the initial adjustment cap (commonly two or five percent), the subsequent adjustment cap (most commonly one or two percent) and the lifetime cap (most commonly five percent, though some loans have a higher one); some loans have a different lifetime limit for decreases, known as a floor; two lenders may offer the same initial rate with different caps; and ask the lender to calculate the highest payment you may ever have, which is also on your Loan Estimate.
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According to the CFPB, most ARMs have a fixed rate for an initial period, for example 3 or 5 years, and are typically recalculated once a year after that, though that structure is not required; on some loans the balance can grow even while you pay (negative amortization); some have a floor rate or a clause that only lets the rate go up, which makes them more expensive and risky; and most loans do not have prepayment penalties, but it is worth checking.
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The CFPB's Consumer Handbook on Adjustable-Rate Mortgages (CHARM) explains that on an ARM advertised as 5/1 or 5/6m the first number tells you how long the initial rate lasts and the second how often the rate changes after that (on a 5/6m, the rate stays the same for the first five years and may then adjust every six months); that the rate is index plus margin; that on an interest-only ARM the payment goes up when that period ends even if rates stay the same; and that a lender may give you the option to pay points but you never have to take it: to see whether it is a good deal, compare the cost of the points with what you save with the lower rate.
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Under Regulation Z, if the rate can rise after closing, the Loan Estimate includes the 'Adjustable Interest Rate (AIR) Table' with the index and margin, the initial rate, the minimum and maximum rate, when the rate can first change and how often after that, and the maximum change at the first and later adjustments.
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Under Regulation Z, if the APR may increase after closing on a loan secured by your principal dwelling with a term longer than one year, the lender must give you the 'Consumer Handbook on Adjustable Rate Mortgages' (or a suitable substitute) and a disclosure for each variable-rate program you are interested in, when it gives you the application form or before you pay a non-refundable fee, whichever comes first.
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Under Regulation Z, before the first adjustment of an adjustable-rate mortgage you must receive a separate notice at least 210, but no more than 240, days before the first payment at the adjusted rate is due; and when an adjustment changes your payment, the notice must reach you at least 60, but no more than 120, days before the first payment at the new amount is due.
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According to the CFPB, points let you pay more up front in exchange for a lower rate and can be a good choice if you plan to keep the loan a long time; one point equals one percent of the loan amount; by law, points on the Loan Estimate and Closing Disclosure must be connected to a discounted rate; how much the rate drops per point depends on the lender, the kind of loan and the market; lender credits work in reverse, a higher rate in exchange for money toward closing costs, and may be called 'negative points' on a worksheet; if you are unsure how long you will stay, you can ask for two options (with and without points or credits) and the total cost over several timeframes, or review them with a HUD-certified housing counselor; and when comparing, ask each lender for the same amount of points or credits.
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According to Fannie Mae's Selling Guide, temporary interest rate buydowns are allowed on fixed-rate loans and certain ARMs for principal residences or second homes if the rate reduction does not exceed 3% and the rate increase does not exceed 1% per year; the buydown period cannot exceed 3 years; there must be a written agreement between whoever provides the funds and the borrower; the borrower remains obligated to make the payments in the note if the buydown funds are not available; the lender must qualify the borrower at the note rate, without considering the bought-down rate; and if the funds come from an interested party to the sale, the interested-party contribution limits apply.
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According to the CFPB, with a rate lock your rate does not change between the offer and closing as long as you close within the time frame and nothing changes in your application; mortgage rates can change daily, sometimes hourly; locks are typically for 30, 45 or 60 days, sometimes longer; a lock may be expensive to extend and may lock you out of a lower rate if rates fall; some lenders lock when issuing the Loan Estimate and some do not; a locked rate can still change if your application changes, including the loan amount, credit score or verified income, for example if you change the kind of loan or your down payment or the appraisal comes in different; lock policies vary by lender; and the Loan Estimate does not say how much it would cost to extend the lock.
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According to the CFPB, locking your rate protects you if rates go up between now and closing; some lenders lock at the Loan Estimate stage and others wait for you to express your intent to proceed; and if you do not close before the lock expires, even because of the lender's processing time, you might have to pay to extend it, so ask whether you can switch to a longer lock and at what cost.
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Under Regulation Z, if the rate was not locked when you received the Loan Estimate, the lender must give you a revised Loan Estimate with the new rate, points and credits no later than three business days after the rate is locked.
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Under Regulation Z, the Loan Estimate states whether the interest rate is locked and, if so, the date and time that period ends; and it states that the rate, points and lender credits may change unless the rate is locked.
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HUD-approved housing counselors give independent advice on buying, renting, defaults and credit, often at little or no cost.
Sources
Each source on one line: who publishes it, its title, its address and the date we read it.
- 1. CFPB · What is the difference between a mortgage interest rate and an APR? · consumerfinance.gov · Accessed October 17, 2026
- 2. CFPB · How does paying down a mortgage work? · consumerfinance.gov · Accessed October 17, 2026
- 3. CFPB · Explore interest rates · consumerfinance.gov · Accessed October 17, 2026
- 4. CFPB · Does my credit score affect my ability to get a mortgage loan or the mortgage rate I pay? · consumerfinance.gov · Accessed October 17, 2026
- 5. Freddie Mac · Primary Mortgage Market Survey (PMMS) · freddiemac.com · Accessed October 17, 2026
- 6. Board of Governors of the Federal Reserve System · Monetary Policy: What Are Its Goals? How Does It Work? · federalreserve.gov · Accessed October 17, 2026
- 7. CFPB · Understand the different kinds of loans available · consumerfinance.gov · Accessed October 17, 2026
- 8. CFPB · What is the difference between a fixed-rate and adjustable-rate mortgage (ARM) loan? · consumerfinance.gov · Accessed October 17, 2026
- 9. CFPB · For an adjustable-rate mortgage (ARM), what are the index and margin, and how do they work? · consumerfinance.gov · Accessed October 17, 2026
- 10. CFPB · What are rate caps with an adjustable-rate mortgage (ARM), and how do they work? · consumerfinance.gov · Accessed October 17, 2026
- 11. CFPB · If I am considering an adjustable-rate mortgage (ARM), what should I look out for in the fine print? · consumerfinance.gov · Accessed October 17, 2026
- 12. CFPB · Consumer Handbook on Adjustable-Rate Mortgages (CHARM) · files.consumerfinance.gov · Accessed October 17, 2026
- 13. CFPB (Code of Federal Regulations, text at Cornell LII) · Regulation Z, 12 CFR §1026.37, Content of disclosures for certain mortgage transactions (Loan Estimate) · law.cornell.edu · Accessed October 17, 2026
- 14. CFPB (Code of Federal Regulations, text at Cornell LII) · Regulation Z, 12 CFR §1026.19, Certain mortgage and variable-rate transactions · law.cornell.edu · Accessed October 17, 2026
- 15. CFPB (Code of Federal Regulations, text at Cornell LII) · Regulation Z, 12 CFR §1026.20, Disclosure requirements regarding post-consummation events · law.cornell.edu · Accessed October 17, 2026
- 16. CFPB · How should I use lender credits and points (also called discount points)? · consumerfinance.gov · Accessed October 17, 2026
- 17. Fannie Mae · Selling Guide B2-1.4-04, Temporary Interest Rate Buydowns · selling-guide.fanniemae.com · Accessed October 17, 2026
- 18. CFPB · What's a lock-in or a rate lock on a mortgage? · consumerfinance.gov · Accessed October 17, 2026
- 19. CFPB · Choose a loan offer · consumerfinance.gov · Accessed October 17, 2026
- 20. CFPB · Find a Housing Counselor · consumerfinance.gov · Accessed October 17, 2026