A jumbo loan (also called a jumbo mortgage) is a home loan that exceeds the conforming loan limits established by the Federal Housing Finance Agency (FHFA). These limits vary by location—for 2024, the baseline conforming limit for most U.S. counties is $766,550 for a single-family home, though limits are higher in expensive housing markets (up to $1,149,825 in high-cost areas like San Francisco or New York City). Any mortgage above these thresholds is considered a jumbo loan. These loans are necessary for purchasing high-value properties but fall outside the guidelines that allow mortgages to be purchased, guaranteed, or securitized by government-sponsored enterprises like Fannie Mae and Freddie Mac.

Because jumbo loans can't be sold to Fannie Mae or Freddie Mac, lenders retain the risk, which historically meant stricter qualification requirements and higher interest rates. Borrowers typically need excellent credit scores (usually 700 or higher, often 720+), lower debt-to-income ratios (typically below 43%, sometimes 38%), larger down payments (usually 10-20%, sometimes more), significant cash reserves (often 6-12 months of mortgage payments), thorough income documentation, and a strong financial profile. However, competition among lenders has intensified, and jumbo loan rates are now often competitive with conforming loan rates, especially for highly qualified borrowers. Jumbo loans may also offer flexibility that conforming loans don't, such as interest-only payment options or unique property financing. These loans are essential tools for purchasing luxury properties, homes in high-cost markets, or investment properties that exceed conforming limits.

The decision to buy points is fundamentally a break-even calculation. Using the example above, if that 0.25% rate reduction saves you $50 per month ($600 annually), your $3,000 investment breaks even after 60 months (5 years). If you plan to stay in the home longer than the break-even period, buying points saves you money; if you sell or refinance before that, you lose money. Points make the most financial sense when you have extra cash at closing (without depleting your emergency fund), plan to stay in the home long-term, currently face high interest rates that you want to offset, or are in a high tax bracket (points may be tax-deductible). They rarely make sense if you might move or refinance within a few years, have limited cash and need to preserve funds for other purposes, or if the break-even period is too long for your comfort. It's important to distinguish discount points (which reduce your rate) from origination points (which are lender fees that don't affect your rate).