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Mortgage Rate Lock Advisory 2026: Float vs. Lock Decision Framework for Loan Officers

The float vs. lock decision is one of the most common borrower questions and one of the most legally sensitive. Here is the framework for advising clients without creating liability.

Vicario IntelligenceAugust 21, 20265 min read

Every borrower asks whether they should lock now or float hoping for better rates. This question puts loan officers in a difficult position: offering a prediction creates liability, and refusing to engage leaves the borrower without useful guidance. The right approach is a framework-based conversation, not a forecast.

The Legal Framework First

MLOs are not registered investment advisors and should not offer rate predictions or guaranteed forecasts. The appropriate disclosure is that future rate movement cannot be predicted. What you can do is explain the factors the borrower should weigh in making their own decision.

The Framework to Offer Borrowers

  • Risk tolerance: Can they absorb a rate increase if they float? What does a 0.25% rate increase cost them monthly?
  • Timeline: How far out is closing? The longer the timeline, the more exposure to rate movement.
  • Current vs. breakeven: What is the cost of the lock and what rate improvement would they need for floating to pay off?
  • Market events: Are there known scheduled events (Fed meetings, CPI reports) before closing that could move rates significantly?

Lock Policies to Understand

Rate locks typically carry a set period (30, 45, 60 days) and an extension cost if closing is delayed. Renegotiation policies vary by lender -- some allow one float-down within the lock period if rates drop more than a defined threshold. Know your lender's lock policies before advising on strategy.

Aria on vicariointel.com can help you explain rate lock options and costs for a specific loan scenario. Use it to give your borrower a concrete picture of their options.

7-day free trial. No credit card required.

Ask Aria About Rate Lock Options for a Specific Loan

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