Jumbo vs Conforming Loan Limit 2027 Calculator
Compare jumbo vs conforming loan cost for 2027 using the $806,500 baseline / $1,209,750 high-cost limit. See rate premium, piggyback math, and 30-year savings. Free, private.
| Metric | Conforming + Cash | Jumbo (single) | Piggyback 80/10/10 |
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What is the 2027 conforming loan limit?
The conforming loan limit is the maximum loan amount that Fannie Mae and Freddie Mac will purchase from lenders. For 2027, the FHFA-set baseline is approximately $806,500 for single-family homes in most US counties, with high-cost area limits up to $1,209,750 in expensive markets (parts of California, New York, Hawaii, DC, and some Alaska counties). Loans at or below this limit are "conforming"; loans above are "jumbo" or "non-conforming."
The 2027 limit increased from 2026's $766,550 baseline, reflecting continued home price appreciation. The exact county-by-county limit is published annually by the FHFA in November for the following calendar year.
Jumbo loan rate premium and requirements
Jumbo loans historically carried a substantial rate premium (1-2%) over conforming, but in 2027 the gap has narrowed to approximately 0.10%-0.50% due to strong portfolio demand from banks. The premium varies by lender, with some "super-jumbo" private banks offering rates BELOW conforming for high-net-worth clients with deposit relationships.
Jumbo qualification requirements are stricter than conforming:
- 700+ FICO minimum (740+ for best rates)
- 10%-20% down (some lenders accept 5-10% with mortgage insurance)
- 43% DTI maximum (sometimes 36% on jumbo)
- 6-12 months PITI reserves (sometimes 24 months on super-jumbo)
- Two appraisals if loan >$1M (in many cases)
The piggyback 80/10/10 alternative
For loans just above the conforming limit, a piggyback 80/10/10 structure can be cheaper than a single jumbo. Setup:
- 80% first lien at conforming limit ($806,500 on baseline counties) — conforming rate
- 10% second lien (HELOC or fixed 2nd mortgage) — typically prime + 1-2%
- 10% cash down payment
Example: $950,000 home. Conforming first $760,000 @ 6.75%, second $95,000 @ 8.50% HELOC, $95,000 down. Avoids jumbo rate on the full $855,000 and avoids PMI. Trade-off: HELOC rate is variable, and combined monthly may exceed jumbo by $50-$150/month depending on rate environment. Best for buyers who plan to pay off the second lien within 5 years.
When does jumbo make sense vs piggyback?
Jumbo single-loan wins when:
- You have 20%+ down and want simplicity (one loan, one payment)
- Jumbo rates are tight to conforming (within 0.15% in 2027 for most borrowers)
- You have private banking relationships that get sub-conforming jumbo rates
- You don't want HELOC rate variability
Piggyback wins when: jumbo rate premium exceeds 0.30%, you have only 10% down, you can pay off the second lien quickly, or you want to keep the first loan size below the conforming threshold to ensure portfolio liquidity.
Source: FHFA 2027 Conforming Loan Limits announcement (November 2026), MBA Jumbo Index 2026 rate analysis.