Priced at 6.9, Closing at 7.6: Set a Walk-Away Rate

A rate increase before closing cuts your DSCR and your loan. Here is the same rental at 6.9, 7.6, and 8.3 percent, and how to set a walk-away rate first.

Re:InvestorHub Team · · Deal Analysis

A rate increase before closing changes three numbers on your deal at once: the monthly payment, the DSCR (debt service coverage ratio), and the size of the loan a lender will write. Freddie Mac's Primary Mortgage Market Survey put the 30-year fixed rate at 7.40 percent on October 8, 2026, up from 7.28 percent a week earlier. Four weeks ago, on September 10, the same survey read 6.76 percent. If you signed a purchase contract on that date and priced your deal at 6.9 percent, your closing is arriving into a market 64 basis points higher. A basis point is one hundredth of a percentage point. The fix is to decide, before you sign, which rate makes you renegotiate and which rate makes you walk.

How far did rates move during a typical contract window?

Far enough to matter on a 30-day close. The weekly Freddie Mac 30-year readings, as republished by the St. Louis Fed, ran 6.76 percent on September 10, 6.95 on September 17, 7.03 on September 24, 7.28 on October 1, and 7.40 on October 8. That is 64 basis points in four weeks. The 10-year Treasury yield, the benchmark that mortgage rates track, moved from 4.95 percent to 5.22 percent over the same stretch, after touching 5.31 percent on October 5.

The Federal Reserve added to the pressure. On September 16 the Federal Open Market Committee voted 12 to 0 to raise the federal funds target range by a quarter point, to 3.75 to 4 percent. The Freddie Mac figure averages loans to strong-credit borrowers buying owner-occupied homes with 20 percent down, so a rental loan prices above it. Your own quote is the only rate that counts, a gap we cover in why your rate is higher than the headline rate.

What does a rate move do to the same rental?

Run one example three ways. This is a hypothetical rental, not a market listing. The purchase price is $300,000, the loan is 75 percent of price ($225,000) on a 30-year fixed amortization, and rent is $2,400 per month. Property taxes and insurance add $450 per month. Closing costs are $9,000, held constant. DSCR here is monthly rent divided by PITIA, meaning principal, interest, taxes, insurance, and any association dues. Many DSCR lenders use that convention, and some use net operating income over debt service, so confirm which one yours uses. The 1.20 minimum below is an assumption for the example, not a standard.

Read the table in two directions. A 70 basis point increase from 6.9 to 7.6 percent adds $106.82 to the monthly payment, or $1,282 per year, and cuts cash flow by 23 percent. It also pushes DSCR below the 1.20 line, which means the lender shrinks the loan and you cover the difference with $5,500 more cash at the closing table. The rate hurt you twice: once in the payment and once in the proceeds.

How do you set a walk-away rate before you sign?

Pick the metrics that break your deal and solve for the rate where each one fails. Then write the rates down before the contract exists. In the example, two rates matter.

  1. The retrade rate. At 7.35 percent or higher, the $225,000 loan drops below 1.20 DSCR (it equals 1.20 at 7.34 percent), so the loan no longer fits as structured. Everything above this line costs you cash or price.
  2. The walk-away rate. Suppose your cash budget for this deal is $90,000 at closing. The lender's maximum loan keeps you under that budget until the rate reaches about 7.62 percent. Above it, you need more cash than you set aside, and the deal is not the deal you underwrote.
  3. A cash flow floor. If yours is $350 per month, the full loan breaks it at 7.67 percent, above the other two lines, so it does not set the limit here.

At 7.6 percent the example deal sits between the two lines: past the retrade rate, inside the walk-away rate. That is a useful place to be, because it turns the conversation with the seller into a number. You are not asking for a discount because rates feel worse. You are showing that your loan shrank by about $5,500 and your cash flow fell by $107 a month, and asking for a price or credit that restores the structure.

What can you actually do once the rate has moved?

You have four levers. Ask for a price reduction sized to the lost loan proceeds. Ask for a seller credit toward a rate buydown. Bring the extra cash if your budget allows it. Or walk, which the walk-away rate lets you do without second-guessing. Financing contingencies, earnest money, and deadlines vary by contract, so have an attorney in your state read yours before you rely on any of these.

How do rate locks protect you, and where do they stop?

The CFPB defines a rate lock as an agreement that your rate will not change between the offer and closing, as long as you close within the specified time frame and your application does not change. Locks are typically available for 30, 45, or 60 days, sometimes longer. The same page lists the costs: a lock may be expensive to extend if your transaction needs more time, and it can lock you out of a lower rate if rates fall.

Your locked rate can also change if the appraisal comes in lower than expected, your credit score moves, or the lender cannot document your income. Ask the questions the CFPB recommends: what the lock period is, what it costs to lengthen it, what happens if closing slips past expiration, and what happens if rates fall. Some lenders sell a float-down option for the last question; ask whether yours does and what it costs. A lock swaps rate risk for timeline risk, so match the lock period to your closing date plus a buffer.

How does this connect to the rest of your underwriting?

This article covers the window from contract to closing only. If you are choosing the rate to underwrite in the first place, start with underwriting at 6.5 percent. If the deal is a BRRRR (buy, rehab, rent, refinance, repeat), the rate you refinance at matters as much as the rate you close at, and stress-testing your exit at 7.5 percent covers that. Floating-rate bridge or construction debt is a different problem, covered in the prime rate at 7 percent.

Lenny, the Re:InvestorHub AI coach for financing, is the right place to ask which lenders on your list lock at application, what their lock periods cost, and how they calculate DSCR. Those answers decide how much rate risk you carry.

What should you do before your next contract?

Before you sign, run the deal at your quoted rate, at 70 basis points higher, and at 140 basis points higher. Write down the rate where your loan stops fitting and the rate where your cash budget breaks. Ask the lender about lock length and extension cost on the same call. When rates jump during a contract window, you read a number you already calculated.