Quick Answer — What Makes a Loan Jumbo in 2026?
A loan is jumbo when it exceeds the conforming loan limit for its county. The Federal Housing Finance Agency set the 2026 baseline at $832,750 for a one-unit property, with a high-cost ceiling of $1,249,125 — exactly 150 percent of the baseline, and the figure that also applies in Alaska and Hawaii. Above that limit the loan sits outside Fannie Mae and Freddie Mac guidelines, so the lender holds it and sets its own terms.
A $1,150,000 purchase with 20 percent down, on the baseline limit, at a 6.75 percent jumbo rate against a 6.55 percent conforming rate, 30-year term, $13,800 of annual property tax and $3,200 of insurance, on a $360,000 income with $900 of other debts:
- Loan amount — $920,000, which is $87,250 above the limit
- Principal and interest — $5,967.10; total monthly payment — $7,383.77
- Housing ratio — 24.6 percent; total debt ratio — 27.6 percent
- Reserves required at six months — $44,303
- Cost of the 0.20 point rate spread — $121.79 a month, $43,845 over thirty years
The reserve requirement is the part borrowers underestimate. Forty-four thousand dollars has to still be in accounts after closing, on top of the down payment and closing costs.