Hotter CPI, Sticky 5-Year: How to Underwrite Your Next Deal

September’s CPI came in hot on the headline—up 0.6% month over month and 3.7% year over year—driven largely by a 9.1% jump in gasoline. Core rose 0.3% month over month and 2.6% year over year. Yet the 5-year U.S. Treasury, a common reference index for investor/DSCR loans, still closed right around 5.00% on the day and stayed flat across the week. With medium‑term inflation compensation near the mid‑2% range, the message to small investors is practical: treat financing as firm, expect choppy operating costs, and let execution—not a rate call—carry the deal.

Underwrite With a Sticky 5-Year in Mind

Across October 8–14, the 5-year U.S. Treasury par yield hovered near 5.00%, including a 5.00% close on CPI day. Many investor and DSCR programs reference intermediate benchmarks like the 5-year.

When that index is flat, your base-rate component is not doing you favors. For acquisitions, BRRRR takeout's, and portfolio refi's, model proceeds and cash flow using today’s index level and your lender’s typical spread. If rates improve later, that’s upside; if they don’t, your deal still works.

As housing inventory continues to increase, investors should focus on winning at acquisition rather than waiting for lower interest rates. Underwrite deals conservatively using today's financing environment, with DSCR rates benchmarked against the current 5-year Treasury yield. That may mean accepting tighter cash flow in the short term, but securing a property at the right price can create significant long-term upside. As inventory will eventually tighten and property values appreciate, investors will have an opportunity to refinance into more favorable terms, improve cash flow, and cashout on the appreciation. The key is to make your money on the purchase, not depend on the refinance..

Energy-Led Inflation Changes Your Cash-Flow Math

September’s headline inflation was dominated by energy: gasoline rose 9.1% month over month and the overall energy index climbed 5.2%. Shelter still added to inflation (+0.4%), but rent of primary residence increased a smaller +0.2%.

For rentals, that mix argues for conservative operating assumptions. Utility and turnover-related costs that track energy can outpace rent growth in a given month. Stress-test DSCR using a higher OPEX line and slower rent increases.

For flips and rehabs, expensive carry raises the value of speed. Build schedules that reduce idle days, line up inspections and contractor availability early, and watch change orders that extend hold time.

The Real Cost of Capital Is Elevated

On October 14, the 5-year real (TIPS) par yield was about 2.64% while the 5-year nominal was 5.00%, implying roughly 2.36% in market-based inflation compensation over five years. In plain terms, markets are pricing medium‑term inflation in the mid‑2% range and a high real yield.

For investors, a higher real cost of capital means your deals must clear a stiffer hurdle even if inflation cools. Translate that into underwriting discipline: require wider spreads between all‑in cost and ARV, and between rent and price, so the project still pencils if exit cap or takeout rates don’t immediately ease. On BRRRR deals, underwrite the refinance before you buy—use today’s 5‑year index, a realistic spread, and a cautious DSCR to estimate how much equity could remain trapped.

Plan Your Locks Around Volatile Data Prints

Reuters coverage noted Treasury yields jumped immediately after the CPI release and then faded later in the session. That intraday volatility can show up in rate sheets. If timing allows, avoid reactionary locks right after an 8:30 a.m. ET data release and coordinate with your lender on when pricing is most stable.

Mark your calendar: the next CPI is scheduled for Tuesday, November 10 at 8:30 a.m. ET. If you have closings or rate decisions near that date, plan accordingly.

The practical implication: Operate as if benchmark financing remains firm and operating costs are choppy. Deals that win in this market are the ones with real margin, clean execution, and deliberate timing—without depending on a quick drop in the 5‑year.