Interest Rates and Cap Rates in REPE Interviews
How rising or falling rates flow into cap rates, values, and debt service in REPE interviews, with a clean verbal framework and stress examples.
REPE · 5 min read
"What happens to cap rates when rates rise?" is a REPE classic. The wrong answer is a one-word "they go up." The right answer is a chain: risk-free rates, credit spreads, debt cost, buyer required returns, and NOI growth expectations. Interviewers want the system, not a slogan.
The short answer
"All else equal, higher interest rates raise required returns on real estate, which pushes cap rates wider and values down. The pass-through is not one-for-one because cap rates also embed growth, risk, liquidity, and credit availability. I stress both exit cap and floating debt service when rates move."
The chain
Risk-free / base rates up
Treasuries or SOFR rise; the opportunity cost of capital moves.
Debt cost up
Floating loans reprice; fixed-rate refinance is more expensive; proceeds fall for the same DSCR.
Buyer required yield up
Equity needs more return if leverage is costlier or risk premia rise.
Cap rates widen
Values fall for the same NOI unless NOI growth or compression elsewhere offsets.
Direction
Value ≈ NOI ÷ Cap Rate Higher Cap Rate → Lower Value (NOI fixed)
Why it is not 1:1
| Factor | Effect |
|---|---|
| NOI growth expectations | Strong growth can offset some rate pressure |
| Spreads | Cap rates ≈ f(rates + real estate risk premium) |
| Credit availability | Closed lenders can widen caps even if policy rates are flat |
| Asset quality | Trophy vs tertiary assets reprice differently |
| Cap rate lag | Appraisals and deals can lag the bond move |
Debt service overlay
Floating-rate debt can hurt cash flow before exit caps move in the model. A deal can fail DSCR in Year 2 even if you never sell. Always pair rate talk with DSCR and refi risk.
Rate risk shows up in three places:
- Period cash flow: floating interest expense
- Exit value: wider exit caps
- Refinance: lower proceeds, higher coupons, tighter covenants
Missing any one of those three is a common interview miss.
Mini stress
NOI $3.0m. Cap 5.5% → value ~$54.5m.
Cap 6.5% → value ~$46.2m.
Same NOI, about an $8m value gap before leverage.
NOI
$3.0m
At 5.5%
~$54.5m
At 6.5%
~$46.2m
Lever that gap and equity can be cut much harder than the % value decline. That is why sponsors stress exit caps even when they are optimistic on rent growth.
Going-in vs exit cap in a rate shock
Going-in cap is what you buy at. Exit cap is what a future buyer requires. If rates rise during the hold, the honest base case often uses a flat-to-wider exit cap versus going-in, unless you have a specific quality or NOI story that earns compression. Buying at a tight cap and exiting tighter in a rising-rate world is a thesis interviewers will attack.
Compare: rate up vs rate down
Debt service pressure, wider required yields, wider caps, lower values; stress float and refi.
Caps can tighten and values rise, but credit must be available and you can overpay if you assume permanent low rates.
Falling rates (do not get lazy)
When rates fall, caps can tighten and values rise, but:
- Credit still has to be available
- NOI growth expectations may already be priced in
- You can overpay if you assume permanent low rates into a long hold
- Cap compression is not owed to every asset class equally
Underwrite a flat-to-wider exit cap even in a cut cycle unless the asset quality story earns compression.
Sector nuance worth one sentence
Multifamily, industrial, office, and hospitality do not reprice identically. Office with lease rollover risk and CapEx can widen more than a well-located industrial asset with contractual rent bumps. If the interviewer names an asset class, connect rates to that class's NOI durability and buyer pool, not only to a generic cap.
Leverage makes the equity move asymmetric
Take the $54.5m to $46.2m value drop from the mini stress. If the asset had $35m of debt, equity falls from about $19.5m to $11.2m. That is a much larger percentage hit to equity than to property value. Interviewers love this because it connects cap rates to sponsor MoIC, not only to appraisal theory. Always translate wider caps into equity loss after debt, and say whether covenants or cash traps trip before you even get to exit.
If floating debt also lifts interest expense, you can lose both current cash flow and exit equity in the same rate path. That double hit is the REPE rate-shock story in one sentence.
25-second verbal
"Higher rates raise debt costs and required equity returns, which tends to widen cap rates and lower values for a given NOI. I also stress floating debt service and refinance proceeds. The move is directional, not a fixed basis-point pass-through, because growth, spreads, and liquidity matter too."
Practice prompt
"Fed funds up 200 bps over 12 months. What do you do to your multifamily model?"
Answer shape: float debt service, refi assumptions, exit cap sensitivity, rent growth haircut if recession risk rises, and a clear statement that equity is more volatile than NOI.
Related
Cap Rate Interview Questions, Exit Cap vs Going-In.
Practice on SheetRank
On Project Sunbelt, widen the exit cap 100 bps and narrate the equity impact with and without floating-rate debt stress.
Practice on SheetRank
Apply what you learned with drills, guided Academy builds, and live deal underwriting.