Estimate payments for jumbo loans that exceed conforming loan limits. Compare your jumbo loan payment to what a conforming loan would cost and see the year-by-year amortization schedule.
A jumbo loan is any mortgage that exceeds the conforming loan limit set annually by the Federal Housing Finance Agency (FHFA). For 2025, the baseline conforming limit is $806,500 in most U.S. counties, with higher "high-cost area" limits up to $1,209,750 in places like the New York, San Francisco, and Los Angeles metros and in Hawaii. Any loan above that ceiling becomes a jumbo, also called a non-conforming loan, because Fannie Mae and Freddie Mac cannot buy or guarantee it.
The mechanics of a jumbo are otherwise similar to a conforming loan — same amortization math, same term options (15 or 30 years most common), same fixed-vs-adjustable choices. The differences are in pricing and underwriting. Jumbo rates are typically 0.25–0.5% higher than conforming rates (sometimes 0 to slightly lower in certain market conditions), down payment requirements are stricter (10–20% minimum, with sub-10% requiring specific programs), credit score requirements are higher (typically 700+ vs. 620+ for conforming), and lenders want to see substantial reserves (often 6–12 months of payments in liquid assets).
This calculator estimates the monthly payment, total interest, and amortization for a jumbo loan, and compares against the what a conforming loan would cost on the same purchase. Use it to understand the carrying cost of a high-balance loan, to test whether breaking the purchase into a smaller conforming loan plus larger down payment makes sense, or to plan around regional cost differences.
$1,000,000 home, 20% down ($200K), 6.75% jumbo rate, 30-year fixed. Conforming limit: $806,500. Loan amount: $800,000 Just under the limit! By choosing this down payment, you may qualify for a CONFORMING loan at perhaps 6.25%, saving 0.5% on rate. Same loan at 6.25%: monthly P&I $4,927 (vs. $5,189 at 6.75%) = $262/mo savings. Lifetime interest saved: ~$94,000. Adjusting down payment to keep under the limit is often the highest-ROI decision in jumbo financing.
$1,800,000 home, 25% down ($450K), 7.0% jumbo rate, 30-year fixed. Loan amount: $1,350,000 Monthly P&I: $8,981 Annual P&I: $107,772 Lifetime interest: ~$1,883,000 Adding $1,000/mo in extra principal: payoff in ~24 years instead of 30, saving ~$430,000 in interest. Jumbo loans benefit enormously from voluntary extra principal payments because the absolute interest amounts are so large.
$1,500,000 loan amount at 7.0% jumbo rate. 30-year: Monthly P&I $9,979. Lifetime interest: $2,092,000. 15-year: Monthly P&I $13,486 (at perhaps 6.5% — 15-year rates often slightly lower). Lifetime interest: $927,000. The 15-year is about $3,500/mo higher but saves $1,165,000 in lifetime interest. On a jumbo, the absolute dollars are striking. Buyers with sufficient income often choose 15-year specifically because the interest savings are so large.
Use this calculator when shopping for a high-value home in any market, but especially in high-cost-of-living metros where typical homes regularly exceed the conforming limit. The calculator is most useful for testing whether a small adjustment in down payment (or purchase price) could bring the loan under the conforming limit, unlocking better conforming rates.
For high-end buyers, the calculator helps compare two structural choices that matter more for jumbo than for conforming loans: (1) single jumbo loan vs. piggyback (conforming first + smaller second mortgage), and (2) jumbo fixed vs. jumbo ARM. Jumbo ARMs often have a wider rate spread vs. conforming ARMs, sometimes making jumbo ARMs particularly attractive for buyers who plan to refinance.
Pair this with the mortgage-payment calculator (for the underlying amortization math), the mortgage-required-income calculator (since jumbo DTI requirements are stricter), the down-payment calculator (to plan around the conforming threshold), and the mortgage-points calculator (jumbo discount points often have favorable economics due to large balances).
A practical reality: jumbo lenders are often portfolio lenders (banks that keep the loans on their own books rather than selling to Fannie/Freddie). This means more underwriting flexibility but also less rate competition. Talk to multiple jumbo lenders including local banks, credit unions, private banks (especially if you have significant assets), and online jumbo specialists. The rate spread across lenders for the same borrower can be enormous on jumbo loans.
The annual conforming limit changes typically take effect each January. If your purchase is timed around the new year, the upcoming limit may matter — sometimes a small delay tips a loan from jumbo to conforming.
Calculate your monthly mortgage payment including principal, interest, taxes, and insurance.
Find out how much house you can afford based on your income, debts, and down payment.
Calculate your tax savings from the mortgage interest deduction.
Calculate payments for an interest-only mortgage and compare to a standard mortgage.
Calculate the income needed to qualify for a specific mortgage amount.
Estimate how much you will pay in closing costs when selling your home.
Jumbo loans typically require 10-20% down
Jumbo rates are often 0.25-0.5% higher
2024 limit: $766,550 (higher in some areas)
Monthly Payment
$5,189
Loan Amount
$800,000
Over Conforming Limit
$33,450
Total Interest
$1,067,963
| Year | Start Balance | Principal | Interest | End Balance |
|---|---|---|---|---|
| 1 | $800,000.00 | $8,525.98 | $53,739.43 | $791,474.02 |
| 2 | $791,474.02 | $9,119.63 | $53,145.79 | $782,354.38 |
| 3 | $782,354.38 | $9,754.61 | $52,510.81 | $772,599.77 |
| 4 | $772,599.77 | $10,433.81 | $51,831.61 | $762,165.97 |
| 5 | $762,165.97 | $11,160.29 | $51,105.13 | $751,005.68 |
| 6 | $751,005.68 | $11,937.36 | $50,328.06 | $739,068.32 |
| 7 | $739,068.32 | $12,768.53 | $49,496.89 | $726,299.79 |
| 8 | $726,299.79 | $13,657.58 | $48,607.84 | $712,642.21 |
| 9 | $712,642.21 | $14,608.53 | $47,656.89 | $698,033.68 |
| 10 | $698,033.68 | $15,625.69 | $46,639.73 | $682,407.99 |
| 11 | $682,407.99 | $16,713.67 | $45,551.74 | $665,694.32 |
| 12 | $665,694.32 | $17,877.41 | $44,388.01 | $647,816.91 |