AEI Projects National Home Prices Turn Negative in April 2026 — What It Means for Phoenix, Austin, Tampa, Nashville, and Charlotte

Over the past twelve months, national home price appreciation has decelerated to its slowest pace since 2013, and the American Enterprise Institute's Housing Center now projects that deceleration crosses zero in the first two weeks of April 2026. For investors underwriting Sun Belt holds in Phoenix, Austin, Tampa, Nashville, and Charlotte, that inflection point is not a headline risk. It is an underwriting input that changes terminal-value assumptions across 3-to-5-year hold periods.

This piece dissects the American Enterprise Institute forecast, maps metro-level divergence across all five markets, and works through the supply-demand mechanics that explain why the correction runs deeper in Texas and Florida than in the Southeast or Arizona interior.

The AEI Methodology — What You Are Actually Reading

The AEI Housing Center's Home Price Appreciation (HPA) index is a purchase-only, repeat-sales index constructed on a methodology that runs parallel to FHFA's purchase-only series. Unlike the S&P/Case-Shiller composite (which incorporates a broader property universe and lags by roughly two months on release), AEI's index is designed for higher-frequency publication and is explicitly benchmarked against Federal Housing Finance Agency data. It skews toward conforming and near-conforming transactions, capturing the owner-occupied single-family segment most relevant to the median Sun Belt investor.

As of the February 2026 vintage, AEI reported national HPA running at approximately 1.1% year-over-year, the lowest reading since 2013 (Source: AEI HPA Index, February 2026). The trajectory through Q1 2026 has been negative in momentum terms: each successive monthly reading has come in below the prior month's annual rate. AEI's forward projection models that momentum through the spring buying season's base-effect comparison window — months in which 2025 saw its own deceleration — and concludes that the year-over-year figure prints negative for the first time in this cycle sometime in the first two weeks of April 2026 (Source: AEI HPA Index, February 2026).

The multi-year forecast attached to that inflection carries real weight for hold-period math. AEI's base case projects approximately 0% to +1% for single-family national HPA by year-end 2026, with secondary forecasts citing potential drops of -2% in 2027 and -2% through 2028 (Source: AEI HPA Index, February 2026; Fortune, April 2026). On a compounded basis, an investor underwriting a $500,000 purchase at today's national median is looking at a mark-to-model value of roughly $480,000–$485,000 by end-2028 — before any local-market adjustments — if the more pessimistic scenarios prove accurate. In markets already running negative, those adjustments compound the drawdown further.

Metro Divergence: Why Florida and Texas Are Leading the Decline

The national figure is the floor of the story, not the ceiling. The five Sun Belt metros covered by SunBeltPulse are diverging sharply, and the divergence is structural, not noise.

Metro	Median Listing Price	YoY Price Change	Active Listings	Months of Supply (approx.)	Days on Market
Austin	$469,500	-7.9%	10,147	~7.5–8	53
Phoenix	$496,900	-4.4%	19,889	~5.5–6	54
Nashville	$529,000	-1.1%	9,634	~4.5–5	53
Tampa	$400,000	0.0%	18,093	~7.5–8	66
Charlotte	$424,950	0.0%	9,043	~3.5–4	49

Sources: Realtor.com/FRED metro listing data, April 2026. Months-of-supply approximated from active listing counts and trailing closed-sale rates.

Austin is the clearest signal in the dataset. A -7.9% year-over-year decline in median listing price, against a national backdrop of roughly flat to slightly positive, reflects both the severity of the 2021–2022 pandemic-era overshoot and the structural inventory overhang that has since accumulated. As detailed in our earlier analysis Austin's Price Correction, the market began its repricing cycle before the rest of the Sun Belt and has not yet found a clearing price that sustainably absorbs supply. With inventory approaching the 8-month threshold — a level that historically correlates with buyer leverage and continued price softening — the near-term trajectory for Austin sellers remains unfavorable.

Tampa presents a more nuanced picture. The headline YoY figure is flat at 0%, which might read as stability relative to Austin. It is not. That zero is propped up by a shrinking pool of closed comps that have not yet fully repriced relative to active listing cuts. Days on market at 66 is the highest of the five metros, and as we covered in Tampa's Inventory Crisis and the 8-Month Supply Threshold, active listings in the Tampa metro have expanded significantly. The insurance cost overhang (documented in Tampa's Insurance Crisis) adds a carrying-cost impairment that does not appear in headline list prices but materializes in effective yield calculations for rental investors and in buyer qualification math.

Phoenix at -4.4% is the most interesting case for investors because the correction is real but the market structure is less unambiguously broken than Austin or Tampa. Inventory at roughly 19,889 active listings is high in absolute terms, but months-of-supply remains in the 5.5–6 range — elevated, but not yet at the 7-plus level that typically triggers accelerated price discovery. As covered in Phoenix: Migration vs. Price Cuts and the earlier Phoenix Buyer's Market Analysis, the metro continues to absorb net in-migration demand that partially offsets the supply build. Phoenix is a buyer's market, but a differentiated one, where well-located, move-in-ready inventory still transacts within reasonable timeframes.

The Southeast Divergence: Nashville and Charlotte Hold Relative Strength

Nashville at -1.1% and Charlotte flat are not immune to the national correction; they are simply earlier in the repricing cycle and structurally better supported by demand. Charlotte's months-of-supply at approximately 3.5–4 and days on market at 49 reflect a market where supply growth has not yet overwhelmed the demand base driven by corporate relocations and ongoing population inflows, detailed in Charlotte's Population Surge.

Nashville is the more complicated read. The -1.1% median price shift belies a meaningful inventory buildup. As our Nashville Inventory Surge analysis documented, active listings in the Nashville MSA have expanded sharply over the past 12 months, with new construction adding incremental supply pressure covered in Nashville's New Construction Pipeline. At $529,000 median — the highest of the five metros — Nashville carries affordability constraints that will cap demand absorption if rate relief does not materialize. At 6.37% on a 30-year fixed (Source: Freddie Mac PMMS, April 9, 2026), the monthly principal and interest on a median Nashville home with a minimal down payment approaches or exceeds $2,900, a figure that filters out a significant portion of the first-time buyer cohort.

Supply-Demand Mechanics: Why Months of Supply Is the Operative Metric

Both the AEI national projection and the metro-level list-price data trace back to the same underlying mechanic: months of supply is the most reliable leading indicator of price direction over a 6-to-12-month horizon, and two of the five covered metros are at or near the 8-month threshold historically associated with sustained negative price momentum.

For context: a balanced market is conventionally defined as 4–6 months of supply. Below 4 months favors sellers; above 6 months favors buyers with increasing leverage; above 8 months typically correlates with outright price declines in the 5–10% annualized range in prior cycles. Austin and Tampa are operating in that territory now.

Phoenix is approaching the upper bound of the balanced range. Nashville and Charlotte remain below it, which explains their relative price resilience, but neither market is insulated from the national rate environment, and both are absorbing supply at a faster pace than two years ago.

Zillow ZHVI data for these metros corroborates the directional story: Phoenix and Austin ZHVI readings have declined on a trailing-12-month basis, while Nashville and Charlotte ZHVI remain in modest positive territory, consistent with the Realtor.com listing-price data cited above.

The 'Wait It Out or Lock In Now' Calculus

For current owners in Austin or Tampa holding a sub-4% mortgage, selling into this market requires a compelling destination thesis to justify paying the spread between an existing locked rate and today's 6.37% on a replacement purchase. The carry advantage of staying is real, and so is the equity erosion risk if AEI's 2026–2028 forecast proves accurate. An owner in Austin at -7.9% YoY is already marking losses; the question is whether the bottom is 12 months out or 30 months out.

For prospective buyers, the calculus is inverted. Entering the Austin or Tampa market today means a declining asset but a motivated seller pool. Months-of-supply figures at 7.5–8 translate directly into negotiating leverage on price, concessions, and seller-paid rate buydowns. A temporary 2-1 buydown financed by a seller concession can bring effective first-year mortgage costs meaningfully below the headline 6.37% rate, a real economic benefit even if the underlying asset continues to reprice.

For investors underwriting multi-year holds, the AEI base-case scenario (0% to +1% in 2026, with potential -2% in 2027 and -2% in 2028 in more pessimistic projections) implies a meaningful potential drawdown from today's values on a national basis by end-2028. In Austin, already running at -7.9% before that national forecast is applied, the hold-period math demands yield and rent-growth assumptions that offset continued price softening. That is achievable in select submarkets with strong rental demand, but it requires stress-testing at current cap rates and realistic terminal values, not 2021-vintage assumptions.

Phoenix and Nashville offer the more defensible entry points in this environment: Phoenix for investors willing to accept near-term price headwinds in exchange for the migration-demand floor; Nashville for investors who believe the inventory surge is a temporary construction overshoot rather than a structural demand reversal.

What to Watch in the Next 90 Days

The April 2026 inflection in AEI's national HPA figure is not the end of the diagnostic process. It is the beginning. The data points that will determine whether the 2026–2028 forecast tracks as projected or overshoots in either direction include:

• Spring contract volume: If pending sales in April–May come in below the prior year across multiple metros, the demand-absorption thesis weakens further.
• Mortgage rate trajectory: A 50-basis-point decline in the 30-year fixed would materially alter monthly payment math and could pull forward latent demand.
• New permit data: Austin and Nashville new-construction pipelines are key. A slowdown in permits signals that the supply overhang is self-correcting; continued elevated starts extend the repricing window.
• Tampa insurance market: Any legislative or carrier-level stabilization in Florida property insurance would reduce the effective-cost drag on buyers and could support a price floor in Tampa sooner than the supply data alone would suggest.

For ongoing data updates on each of these metros, subscribe to the SunBeltPulse investor brief — weekly market stats, AEI HPA vintage updates, and per-metro inventory signals delivered every Monday.