A mortgage rate lock guarantees the interest rate on your mortgage for a set window — typically 30, 45, or 60 days — between approval and closing. The rate inside that window does not move even if market rates climb. The question of when to lock matters most around Federal Reserve meetings because mortgage rates reprice around the bond-market reaction to Fed decisions, not the decision itself. The FOMC meets eight times per year; in 2026, the meetings fall on January 27–28, March 17–18, April 28–29, June 16–17, July 28–29, September 15–16, October 27–28, and December 8–9. Four of those include the Summary of Economic Projections and dot plot — the highest-impact meetings for rate pricing. If you’re within 30 days of closing, the working rule is simple: lock before a Fed meeting or before a major inflation release if locking now gets you a rate your budget can tolerate. The floor cost of being wrong about a lock (you miss a small improvement) is almost always smaller than the ceiling cost of being wrong about a float (your deal no longer qualifies under new pricing). As of April 2026, the 30-year fixed is averaging around 6.00%, and the Fed funds target has been on hold at 3.50%–3.75% since the easing pause began in January.
- Eight FOMC meetings per year; four include the Summary of Economic Projections and dot plot — these carry the most market-moving information.
- Mortgage rates track the 10-year Treasury yield plus a spread of roughly 150–250 basis points, not the federal funds rate directly.
- The next FOMC meeting is April 28–29, 2026. Markets currently price in an 85% probability the Fed holds rates at 3.50%–3.75%, keeping the prime rate at 6.75%.
- CPI and core PCE inflation releases move mortgage rates as much as Fed meetings — sometimes more. Put both calendars on your lock-decision timeline.
- Working rule within 30 days of closing: if the current rate fits your budget, lock. The asymmetric downside of a bad float almost always exceeds the upside of a good one.
- What a Rate Lock Is and What It Protects
- How Fed Meetings Actually Move Mortgage Rates
- The 2026 FOMC Calendar and Why SEP Meetings Matter More
- Data Releases That Move Mortgage Rates Between Fed Meetings
- The Lock vs Float Decision Framework
- Mistakes That Cost Borrowers Money
- Frequently Asked Questions
What a Rate Lock Is and What It Protects
A rate lock is a contract between you and your lender fixing the interest rate on your mortgage for a defined period — usually 30, 45, or 60 days, occasionally up to 90. Once the lock is in, the lender commits to honor that rate through your closing date even if the broader market moves higher. In exchange, you commit to closing on the terms outlined in your loan estimate. The lock travels with the file, not with the house, so it protects against rate risk but not appraisal, underwriting, or clear-to-close risk.
What a lock does not protect against is your own mind. Many borrowers lock in, then watch a headline suggesting rates might drop, and spend weeks wondering whether they should have waited. This is normal and almost always unproductive. The rate at the moment you locked was the best currently available information, and the alternative — leaving your deal exposed to the full range of market outcomes over 30 days — carried much greater downside. For a worked example of how even small rate moves translate into dollars over the life of a loan, see our basis points explainer, which walks through the cost of a 25, 50, and 100 basis-point shift on a typical $400,000 mortgage.
How Fed Meetings Actually Move Mortgage Rates
The most common misconception about Fed meetings is that the FOMC directly sets mortgage rates. It does not. The FOMC sets the federal funds target range — the rate banks charge each other for overnight reserve loans. That rate flows through the prime rate to products like credit cards and HELOCs, but 30-year fixed mortgages follow a different benchmark entirely: the 10-year U.S. Treasury yield.
The 10-year yield reflects what investors are willing to accept to hold Treasury bonds for a decade. It moves on expectations about inflation, growth, and the Fed’s likely path over the coming years — not on the specific decision announced at today’s meeting. When the FOMC statement, dot plot, or press conference changes those expectations, the 10-year moves, and mortgage pricing follows within hours. This is why a meeting at which the Fed leaves rates unchanged can still push mortgage rates up or down by 10 to 30 basis points — what moved was the market’s view of the path, not today’s rate.
Mortgage rates track the 10-year Treasury plus a spread of roughly 150 to 250 basis points covering mortgage-backed-security risk premium and lender margin. That spread has been elevated in 2025–2026 compared to its long-run average, meaning any decline in the 10-year Treasury translates into meaningful borrower savings almost immediately. For a deeper look at the long-end benchmark that actually prices your mortgage, see the Treasury yield curve dashboard, and the yield curve inversion explainer for why the relationship between short and long rates matters for refinance timing.
The 2026 FOMC Calendar and Why SEP Meetings Matter More
The full 2026 schedule includes eight meetings at the Federal Reserve Board in Washington, DC:
- January 27–28, 2026 — held steady at 3.50%–3.75%
- March 17–18, 2026 — held steady at 3.50%–3.75%; SEP released
- April 28–29, 2026 — next meeting; no SEP
- June 16–17, 2026 — SEP released
- July 28–29, 2026 — no SEP
- September 15–16, 2026 — SEP released
- October 27–28, 2026 — no SEP
- December 8–9, 2026 — SEP released
The four SEP meetings carry more weight for mortgage rate movement because they update the Summary of Economic Projections and dot plot — giving markets a fresh view of where Fed participants expect rates to be over the next three years. A shift of even one or two dots in the median projection can move the 10-year Treasury by 15 to 30 basis points in the hours following the release. Non-SEP meetings (April, July, October) typically confirm or maintain the trajectory set at the prior SEP meeting; they can still deliver rate moves but generally produce smaller market reactions.
The policy statement is released at 2:00 PM Eastern Time on the second day of each meeting; Chair Powell’s press conference begins at 2:30 PM ET. Bond markets process the statement in roughly 15 minutes. The dot plot (SEP meetings only) drops simultaneously with the statement. The full dot-plot methodology is covered in our companion guide to reading the Fed dot plot, which is particularly relevant going into the June, September, and December 2026 meetings. For the live tracker and meeting-by-meeting market probability, see the Fed meeting schedule page.
Data Releases That Move Mortgage Rates Between Fed Meetings
Between FOMC meetings, two government data releases move mortgage rates more than anything else. Both are pre-scheduled and both can produce same-day repricing.
CPI (Consumer Price Index). Released by the Bureau of Labor Statistics on or around the 10th to 15th of every month at 8:30 AM Eastern Time, covering the prior month’s inflation. A surprise to the upside — inflation hotter than expected — pushes the 10-year Treasury yield higher and mortgage rates with it within hours, sometimes within minutes. A surprise to the downside does the reverse. CPI is the single most consequential monthly data point for near-term mortgage pricing.
Core PCE (Personal Consumption Expenditures, ex food and energy). Released by the Bureau of Economic Analysis on or around the last business day of the month at 8:30 AM Eastern. Core PCE is the inflation measure the Federal Reserve explicitly targets at 2.0%, which makes it more important to Fed thinking than CPI — but less volatile in its monthly surprise, so the market reaction is usually smaller. Still, a 0.2 percentage point surprise in core PCE can easily move the 10-year by 10 basis points.
Monthly jobs report. Released by the Bureau of Labor Statistics on the first Friday of each month at 8:30 AM Eastern. Unemployment, non-farm payrolls, and wage growth. A strong jobs report signals the Fed can stay higher for longer; a weak report suggests cuts may accelerate. Mortgage rates adjust accordingly by mid-morning. The jobs report is particularly market-moving when expectations are tight or when the Fed is explicitly watching labor-market slack.
Put three recurring dates on your closing-month calendar: the FOMC meeting dates, the monthly CPI release, and the first Friday jobs report. For April 2026, that means the April 28–29 Fed meeting, the April 15 CPI release (March 2026 data), and the May 1 jobs report (April 2026 data). Any of these can move your mortgage pricing by 10 to 30 basis points in a single session. If you’re within 30 days of closing and any of these events sit between now and your close date, the default answer is lock before the event unless your lender offers a float-down option at modest cost and you have strong conviction the data will print in your favor.
The Lock vs Float Decision Framework
The decision comes down to three variables: how close you are to closing, how tight your budget is relative to your current quoted rate, and how much upside you’re realistically trying to capture by floating.
Lock if any of these apply. You’re within 30 days of closing. Your DTI (debt-to-income ratio) is tight — a 25 to 50 basis point rate increase would push your DTI above lender thresholds and kill the deal. Your cash-to-close has no margin — a rate rise that bumps the monthly payment also bumps the escrow and can shift your funds requirement at the closing table. Your appraisal is condition-dependent and any execution complication would put your timeline at risk. In all of these, locking protects the deal, not just the price.
Consider floating only if all of these apply. You’re 45 or more days from closing. Your approval has real margin — a 50 basis point rate increase would raise your payment but not threaten qualification. You have a specific, identifiable trigger for when you’ll lock (e.g., “lock if the 10-year drops below 4.10%” or “lock after CPI prints if it comes in below 3.2%”). You can tolerate the downside scenario: the rate rises 50 basis points from today’s quote. Floating without a trigger is gambling, and most borrowers who float “just to see what happens” end up locking at a worse rate than they were originally offered.
Float-down options. Some lenders offer a one-time float-down inside an active lock period — if rates fall by at least 25 basis points before closing, you can capture the improvement. These options typically cost between 0.25 and 0.50 points (0.25%–0.50% of loan amount) added to closing costs. On a $400,000 loan, that’s $1,000 to $2,000. Do the math: a 25 basis point rate drop over a 30-year loan is worth roughly $19,000 in interest, so the float-down pays for itself many times over if exercised — but only a minority of locks end up benefiting. Read the float-down trigger terms carefully; some require a 50 bps drop, which almost never materializes inside a 30-day window. For the precise dollar impact of a float-down on your specific loan, use our prime rate impact calculator (works for mortgage scenarios too) and reference current 30-year benchmarks on the current mortgage rates page.
Before you lock, ask your loan officer four specific questions. First: what’s the lock length and can I extend it if my closing slips by a week? (Extension fees typically run 0.125 to 0.375 points for 15 additional days.) Second: does the lender offer a float-down, at what trigger threshold, and at what cost? Third: is the lock contingent on appraisal value or any underwriting conditions? A lock that evaporates if the appraisal comes in low is not really a lock. Fourth: does the rate I’m being quoted match what appears on page one of my Loan Estimate, and can I have a copy confirming the lock is active? Verbal “we locked you” assurances are not enforceable. Always get written confirmation.
Mistakes That Cost Borrowers Money
Five predictable errors appear again and again in lock-timing decisions.
Anchoring to the pre-meeting rate. Borrowers often see a quoted rate two weeks before a Fed meeting, then refuse to lock at anything higher afterward, convinced the “right” rate is the one they saw first. If the meeting pushed rates up 20 basis points and they hold out for the original level, they may wait months — or miss the deal entirely.
Floating through a CPI release with a tight budget. If a hot CPI print would bump your rate by 30 basis points and your DTI is already near the ceiling, floating through the release is a bet-the-deal move. The 30% chance of CPI printing hot — and the asymmetric downside if it does — should generally force a lock before the release.
Extending a lock repeatedly rather than planning the timeline. Each extension typically adds a fee of 0.125 to 0.375 points. Three extensions on a $400,000 loan can cost $1,500 to $4,500 — more than most rate improvements you’d see by floating. If you suspect your closing may slip, negotiate a longer initial lock (60 instead of 45 days) up front for a small premium rather than paying extensions.
Believing the headline over the bond market. A financial headline saying “Fed signals potential cuts ahead” does not mean mortgage rates will drop tomorrow. If the 10-year Treasury yield has not moved meaningfully in response, mortgage rates won’t either. Always sanity-check headlines against the actual benchmark. The U.S. interest rates dashboard gives you the 10-year, the 2-year, the Fed funds target, and prime all on one page.
Ignoring SOFR-indexed adjustable loan options. If you plan to refinance or sell within five to seven years, a SOFR-indexed ARM can carry an effective rate 50 to 100 basis points below a 30-year fixed, and the lock timing matters much less on an adjustable because the introductory rate resets anyway. Our SOFR explainer walks through the mechanics and when an ARM beats a fixed-rate lock.
Frequently Asked Questions
What is a mortgage rate lock?
A mortgage rate lock is a contract between you and your lender fixing the interest rate on your mortgage for a set period — usually 30, 45, or 60 days — between application approval and closing. Once locked, the rate does not move even if market rates rise. The lender commits to honor the rate; you commit to closing on the terms in your Loan Estimate. The lock protects against rate risk but not against appraisal, underwriting, or title issues that could delay or derail the deal.
How long does a mortgage rate lock last?
Standard lock periods are 30, 45, and 60 days. Some lenders offer 90-day locks, and a few offer 15-day locks for borrowers very close to closing. Longer locks cost slightly more (priced into the rate itself), because the lender is taking on more market risk by committing further into the future. If your closing slips past the lock expiration, you’ll typically pay an extension fee — commonly 0.125 to 0.375 points for 15 additional days.
Should I lock my mortgage rate before a Fed meeting?
Generally yes if you’re within 30 days of closing and the current rate fits your budget. Fed meetings — especially the four per year that include the dot plot — can move mortgage rates 10 to 30 basis points in either direction within hours. If rates rise after the meeting and you didn’t lock, your deal may no longer qualify under your approval terms. The asymmetric downside of missing a small improvement is smaller than the downside of the rate moving against you materially.
Do mortgage rates go down when the Fed cuts rates?
Not necessarily and not always immediately. The Fed cuts the federal funds target — a short-term rate. Mortgage rates are priced off the 10-year Treasury yield, which reflects expectations about longer-term growth, inflation, and future Fed action. If the market already priced in the cut ahead of the meeting, mortgage rates may not move at all when the cut is announced. Sometimes mortgage rates even rise after a cut if the Fed’s forward guidance suggests fewer cuts ahead than markets expected. The 10-year Treasury is the benchmark to watch.
When is the next FOMC meeting in 2026?
The next FOMC meeting is April 28–29, 2026. The rate decision and policy statement will be released at 2:00 PM Eastern Time on Wednesday, April 29, with Chair Powell’s press conference beginning at 2:30 PM ET. This meeting does not include an updated Summary of Economic Projections or dot plot, so any forward guidance will come solely from the statement language and press conference remarks. Markets currently price in an 85% probability the Fed will hold rates steady at 3.50%–3.75%.
What is a float-down option?
A float-down option is a lender-offered feature that lets you capture an improvement in mortgage rates inside an active lock period. If rates drop by at least a trigger amount (commonly 25 basis points, sometimes 50 bps) between your lock date and closing, you can re-lock at the lower rate. Float-downs typically cost 0.25 to 0.50 points (0.25%–0.50% of the loan amount), added to closing costs. They’re most valuable on larger loans where a 25 bps improvement translates to $15,000 to $25,000 in lifetime interest savings.
How much does it cost to extend a rate lock?
Extension fees typically run 0.125 to 0.375 points (0.125%–0.375% of loan amount) for each 15 additional days. On a $400,000 loan, a 15-day extension costs roughly $500 to $1,500. Some lenders charge a flat fee instead (commonly $500 to $1,500). If you expect your closing to slip, it’s almost always cheaper to negotiate a longer initial lock up front (60 instead of 45 days) for a small premium, rather than paying extension fees later.
Next Steps: Putting the Framework to Work
The simplest way to use this playbook: open your calendar, mark the next three FOMC dates and the next three CPI release dates, and compare them to your planned closing date. If any event sits between now and close, and your budget is tight, lock. If you’re 45+ days out with real margin, set a specific lock trigger (a 10-year Treasury level, a CPI outcome, a rate quote threshold) and stick to it. Don’t float without a trigger. Don’t anchor to yesterday’s rate.
For live benchmark tracking, the U.S. interest rates dashboard shows the 10-year Treasury, Fed funds target, and prime rate together. For the Fed’s expected path, see our Fed rate forecast for 2026. And for the specific meeting you’re timing against, the Fed meeting schedule page carries live probability data and the latest post-decision commentary.
References
- Board of Governors of the Federal Reserve System. “FOMC Meeting Calendars and Information.” federalreserve.gov
- Federal Reserve Bank of St. Louis (FRED). “30-Year Fixed Rate Mortgage Average in the United States (MORTGAGE30US).” fred.stlouisfed.org
- U.S. Bureau of Labor Statistics. “Consumer Price Index Release Schedule.” bls.gov
- U.S. Bureau of Economic Analysis. “Personal Income and Outlays Release Schedule.” bea.gov
- Consumer Financial Protection Bureau. “Loan Estimate Explainer.” consumerfinance.gov
- Board of Governors of the Federal Reserve System. “H.15 Selected Interest Rates.” federalreserve.gov
