7.4% Mortgage Rates Cut What Your Budget Buys by Over 10%

The same $2,500 monthly budget buys about 10.6% less loan at a 7.4% mortgage rate than a year ago. Here's the math, step by step.

Nathan Cole4 min readReviewed by Priya Raghunathan
Loan size a monthly budget buys at a 7.4% mortgage rate versus last year

— Calcavio provides educational tools and general information, not financial, investment, tax, or legal advice. Calculations are estimates and may not reflect your full situation. Rates reflect 2026 data and can change. Consult a qualified professional before making decisions.

A $2,500 monthly budget buys about 10.6% less loan at a 7.4% mortgage rate than it did a year ago. The budget didn't change. The rate did.

Freddie Mac put the average 30-year fixed rate at 7.40% on October 8, 2026. On October 9, 2025, it was 6.30%. A 1.10-point gap sounds small. On this budget, it's about $42,800 of loan.

So you can check the "over 10%" claim, every input is below. Our Mortgage Affordability Calculator runs the same math.

Mortgage Affordability Calculator

How much less loan does a 7.4% mortgage rate buy?

TL;DR:

— At Freddie Mac's October 8, 2026 average of 7.40%, a $2,500 monthly principal-and-interest budget supports about a $361,100 loan over 30 years. At last year's 6.30%, it supported about $403,900. That's roughly $42,800, or 10.6%, less loan. The percentage holds at any budget.

Both figures are illustrative. They cover principal and interest on a 30-year fixed loan. Taxes, insurance, and PMI come on top.

How do you check the math?

Start with the standard amortizing-loan formula, the same one behind our Mortgage Payment Calculator. Here, r is the monthly rate and n is the number of payments.

Mortgage Payment Calculator

Loan = Payment × [(1 + r)^n − 1] ÷ [r × (1 + r)^n]
A year agoNow
30-year fixed rate6.30% (Oct. 9, 2025)7.40% (Oct. 8, 2026)
Monthly budget (P&I)$2,500$2,500
Loan it supports$403,895$361,074
  1. Divide each rate by 12: 6.30% becomes 0.525% a month, and 7.40% becomes 0.6167%.
  2. Set n to 360 payments (30 years × 12).
  3. Solve the bracket: 161.56 at 6.30%, and 144.43 at 7.40%.
  4. Multiply each by $2,500 to get $403,895 and $361,074.
  5. Subtract and divide: $42,821 ÷ $403,895 = 10.6%.

Want Proof?

Enter $403,895 at 6.30% in the payment calculator, with taxes, insurance, and PMI set to zero. You'll see $2,500.00. Enter $361,074 at 7.40% and you'll see the same.

Notepad, calculator, and laptop used to work out mortgage buying power at 7.4%
Five steps turn a monthly budget into a loan amount.

Is the drop still over 10% when you look at the payment?

Yes. Flip the question. Keep the $403,895 loan and price it at 7.40%: the payment jumps to about $2,796. That's $296 more a month, or 11.9%. Same math, other direction.

— According to the Associated Press (October 8, 2026), the rise from February's 5.98% low adds roughly $376 a month on a $400,000 loan at today's average rate.

AP measures from a lower starting point than a year ago, so its number is bigger. Against 5.98%, the same $2,500 budget would support 13.6% less loan.

Most coverage stops at the payment. The loan your budget supports matters more, because it sets your price range. Here's the same comparison across four budgets:

Monthly P&I budgetLoan at 6.30%Loan at 7.40%Difference
$2,000$323,116$288,859−$34,257
$2,500$403,895$361,074−$42,821
$3,000$484,674$433,288−$51,386
$3,500$565,453$505,503−$59,950

Every row shrinks by 10.6%. That's the standout: the gap depends only on the two rates, never on the budget.

Say you've set $2,500 for principal and interest and plan to put 20% down. A year ago, that pointed to a home near $505,000. At 7.40%, it points near $451,000. Closing costs, taxes, and insurance would shift both. To build a price from your own income, try the Multi-Rule Home Affordability Calculator.

Mortgage Affordability Calculator

One caveat matters. Freddie Mac's survey covers conventional loans for borrowers with 20% down and excellent credit, so your quote may land higher or lower. As one r/Mortgages commenter put it, "The bank approving you for a house and you actually being able to afford it are two very different numbers."

AP links the climb to bond-market volatility and inflation worries. It's the seventh weekly rise in a row, and the highest average since November 2023.

Calcavio's Verdict

The verdict:

Budgeting by loan size, not just payment, is the clearest way to see what a 7.4% mortgage rate costs you.

Best for:Skip it if:
Buyers still setting a price range.You already hold a lender's written offer.

Pros and cons

Pros
  • Checkable with one formula
  • Same percentage at every budget
  • Works with any rate you're quoted
Cons
  • Ignores taxes, insurance, and PMI
  • Uses a weekly national average, not your quote
Standout: The 10.6% Gap
the 10.6% gap is identical at every budget, because it depends only on the two rates.
8/10
It's a clear, verifiable lens. It loses points for being principal-and-interest only.
Source: Calcavio Editorial Score

Frequently asked questions

How much house can you afford at a 7.4% mortgage rate?+
It depends on your budget, down payment, and other debts, but you can size the loan first. At 7.40% over 30 years, each $1,000 of monthly principal and interest supports about $144,400 of loan. At 6.30%, it supported about $161,600. Add your down payment to estimate a price range. That's an illustration, not a limit any lender will apply.
Is 7.4% the rate you'll actually get?+
Not necessarily. Freddie Mac's 7.40% is a weekly national average, and your quote depends on credit, down payment, loan type, and lender. Freddie Mac's chief economist notes that comparing multiple quotes can potentially save thousands over the loan's life. Lenders also price in points and fees, so compare the APR alongside the rate. Then use your own quoted rate in the calculator.
How much more is the payment on a $400,000 loan?+
On a 30-year, $400,000 loan, principal and interest runs about $2,770 at 7.40% versus $2,476 at 6.30%. That's roughly $294 more each month. Taxes, insurance, and PMI aren't included, so your full payment will be higher. Enter your own loan amount in the payment calculator to see your exact gap.
Does a 15-year mortgage change the picture?+
Somewhat. Freddie Mac's 15-year average is 6.73% now versus 5.53% a year ago. On a $2,500 budget, that's about $282,900 of loan versus $305,400, or 7.4% less. The shorter term softens the percentage, but the same budget supports a smaller loan because the payments are packed into fewer years.
Couple reviewing 7.4% mortgage rate of their monthly home budget and home buying power at the kitchen table
Start with the monthly number, then work out the loan it supports.

Bottom line

At a 7.4% mortgage rate, the same monthly budget supports about 10.6% less loan than a year ago, and the math works at any budget. Run your own budget and quote through our free Mortgage Affordability Calculator -- no formula needed. Freddie Mac updates its survey every Thursday, so check the October 15 release. Which number surprised you most?

Mortgage Affordability Calculator

— Educational only, not financial advice. Examples are illustrative, not forecasts. Freddie Mac figures are weekly averages dated October 8, 2026.

Sources

  1. Primary Mortgage Market Survey, October 8, 2026 (30-year 7.40%; 15-year 6.73%; year-ago 6.30% and 5.53%; survey covers conventional loans with 20% down and excellent credit) — Freddie Mac
  2. Mortgage Rates Move Down, October 9, 2025 (30-year 6.30%) — Freddie Mac
  3. Mortgage Rates Average 7.40%, October 8, 2026 — Freddie Mac
  4. Average long-term US mortgage rate at highest level in nearly 3 years after 7th weekly rise in a row, October 8, 2026 — The Associated Press via WTOP
  5. "The bank approving you for a house and you actually being able to afford it are two very different numbers" (community comment, quoted as sentiment, not data) — r/Mortgages
  6. Standard amortizing-loan formula, 30-year fixed, monthly compounding (same as the Mortgage Payment Calculator) — Calcavio calculations
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