⚡ EXTENDED RATE LOCK LENDERS — RANKED BY MAX LOCK PERIOD
| Lender | Max Lock | Float-Down | Action |
|---|---|---|---|
| 🥇 Guaranteed Rate (Extended Lock Program) | 360 days | ✅ Available | Lock Rate → |
| 🥈 NewRez / Shellpoint (Builder Lock) | 270 days | ✅ Available | Lock Rate → |
| 🥉 Pulte Mortgage / Builder Lenders | 180 days | ✅ Rate Reset option | Lock Rate → |
| 4th Chase / BofA Private Client | 180 days | ⚠️ Case-by-case | Lock Rate → |
Best 120–180 Day Mortgage Rate Lock Lenders 2026 — Protect Your New Construction Rate From Rising
Your builder says 9–12 months to completion. Standard rate locks expire in 60 days. If rates jump 1% before you close, your payment explodes. Extended rate locks — up to 360 days, with float-down options if rates drop — are the only hedge that makes sense. Compare extended lock lenders now.
Extended Rate Lock Cost Calculator
| Lock Period | Typical Fee | Cost on $400K | Cost on $600K | Float-Down Add-On |
|---|---|---|---|---|
| 30 days | Free | $0 | $0 | +0.25% = $1,000/$1,500 |
| 60 days | 0.0625–0.125% | $250–$500 | $375–$750 | +0.25% |
| 90 days | 0.125–0.25% | $500–$1,000 | $750–$1,500 | +0.25% |
| 120 days | 0.25–0.375% | $1,000–$1,500 | $1,500–$2,250 | +0.375% |
| 180 days | 0.5–0.625% | $2,000–$2,500 | $3,000–$3,750 | +0.375% |
| 270 days | 0.625–0.875% | $2,500–$3,500 | $3,750–$5,250 | +0.5% |
| 360 days | 0.875–1.25% | $3,500–$5,000 | $5,250–$7,500 | +0.5% |
*Fees vary by lender. Some lenders roll the fee into the rate instead of charging cash upfront.
Top 4 Extended Rate Lock Lenders
Guaranteed Rate (Extended Lock Program)
✅ PROS
- • Up to 360-day lock for new construction
- • Float-down option available (trigger: 0.25% drop)
- • One-time close construction-to-perm available
- • Builder concierge service — works directly with your builder
⚠️ CONS
- • Longer locks carry higher rate premium
- • Float-down costs extra (0.375% of loan)
NewRez / Shellpoint (Builder Lock)
✅ PROS
- • 270-day lock standard for new construction
- • Float-down at 0.5% market improvement
- • Builder relationships — smooth coordination
- • Competitive lock fees (0.5% for 180 days)
⚠️ CONS
- • Float-down requires 0.5% rate improvement to trigger
- • Not available in all states
Pulte Mortgage / Builder Lenders
✅ PROS
- • Integrated with major national builders
- • Rate Reset protection at no extra cost (some programs)
- • Builder incentives often include lock fee subsidy
- • Close coordination with build schedule
⚠️ CONS
- • Only works with affiliated builders
- • May not offer best market rate
Chase / BofA Private Client
✅ PROS
- • 180-day lock for qualified clients
- • Jumbo construction lock available ($1M+)
- • Relationship rate discount (0.125–0.25%)
- • Dedicated loan team for duration of build
⚠️ CONS
- • Relationship required for best terms
- • Float-down not standard — must negotiate
Don't Bet Your New Home on the Rate Market.
Lock for 180 days, add a float-down, and sleep through the construction. Compare lenders with extended lock programs now.
Extended Rate Lock FAQ
How long can you lock a mortgage rate for new construction?
Standard mortgage rate locks: 15–60 days. Extended locks for new construction: 90, 120, 180, or even 360 days depending on the lender. The cost increases with the lock period. Typical lock fees: 30-day lock: free or $0. 60-day lock: 0.0625–0.125% of loan amount. 90-day lock: 0.125–0.25%. 120-day lock: 0.25–0.5%. 180-day lock: 0.5–0.75%. Example: $500,000 loan, 180-day lock at 0.625% = $3,125 upfront fee. Some lenders roll the fee into the rate (your rate is 0.125–0.25% higher) rather than charging a cash fee. The float-down option (allows you to lower your locked rate if rates fall) typically costs an additional 0.25–0.5%.
What is a float-down option on an extended rate lock?
A float-down option is an add-on to a rate lock that lets you lower your locked rate if market rates drop significantly before closing. Typical float-down rules: Rates must drop by a minimum threshold (usually 0.25–0.5%) for the float-down to trigger. You get a one-time option to exercise the float-down — you choose when to use it. The new rate is typically the current market rate at time of exercise, sometimes minus a spread (e.g., market rate minus 0.125%). Cost: 0.25–0.5% of loan amount on top of the extended lock fee. Example: You lock at 6.89% with float-down. Rates drop to 6.39%. You exercise the float-down and lock at 6.39–6.52% (depending on terms). Without a float-down: you stay at 6.89% even if the market falls. For new construction buyers, the float-down is often worth the additional cost — it creates an asymmetric bet: you're protected if rates rise, and you can still benefit if they fall.
What happens if my new construction is delayed past my rate lock expiration?
If your construction is delayed beyond your lock period: Lock extension: The lender extends your lock for an additional 15–30 days. Typical cost: 0.125–0.25% per 30-day extension. Usually must be paid by the builder if it's a builder delay. Re-lock at current market rates: If rates have risen, this is the nightmare scenario — you're now locked at a higher rate. Lock expiration without extension: Your lock expires and you must re-lock at current market rates. To protect yourself: Choose a lender with built-in construction delay language. Some lenders offer "renegotiation clauses" that split the rate increase between lender and borrower if rates rise during an authorized delay. Get written confirmation from your builder on completion timeline with penalties for builder-caused delays. Negotiate with your builder to cover lock extension costs if they cause the delay.
Should I lock my new construction rate now or wait?
The "lock now vs. float" decision for new construction: Lock now if: Rates are currently favorable vs. historical context. You have less than 6 months to closing. You can't afford significantly higher payments if rates rise. The float-down option gives you downside protection if rates fall. Float (don't lock yet) if: Construction is 10+ months away and rates are elevated — you may want to float in case rates improve. You have a very wide payment tolerance. Extended lock fees are high and you believe rates will drop significantly. Current 2026 guidance: With 30-year rates at 6.75–7.0% and Fed rate cuts potentially coming, many builders and lenders recommend locking for 90–120 days at a time (rolling locks) rather than one massive 360-day lock. This way, if rates drop you can re-lock lower without paying for a full year of lock cost upfront.
Related Construction Mortgage Guides
Meet David
Refinance & Rate Specialist
David Rodriguez is a seasoned refinancing expert with over 10 years of experience in mortgage rate analysis and market trend forecasting. As a Certified Rate Lock Specialist, he has saved homeowners millions in interest payments through strategic refinancing timing. His expertise in Federal Reserve policy impact and mortgage-backed securities makes him a go-to expert for rate predictions and refinancing strategies.
EXPERTISE:
KEY ACHIEVEMENT:
Saved clients $50M+ in interest payments