Guidesfrom the federal index
Did My Home Beat Inflation? Real vs Nominal Appreciation, Worked Through
Nominal gain is not real gain. How to restate what you paid in today's dollars with the CPI, divide it out of your home's index change, and read what is left.
The short answer
A home beat inflation if its value rose by more than prices in general did over the same years. Divide the home’s change by the change in the Consumer Price Index and what is left is the real change. A $310,000 purchase in March 2014 in ZIP 78704 is worth about $604,811 on the ZIP index, +95.1% nominal. Prices in general rose +36.2% over the same window, so the real change is 1.95 ÷ 1.36 = 1.43, or +43.2%. Less than half of the headline gain survives inflation, and that is a typical result, not an unusual one.
Nominal and real
A nominal change compares dollars then with dollars now as if they were the same thing. They are not: a dollar in 2014 bought more than a dollar in 2025. A real change measures both ends in dollars of the same buying power, so it says how much more house-worth of goods you could buy, not how many more dollars the number has. Every headline appreciation figure, including every figure on this site’s area pages, is nominal unless it says otherwise.
The yardstick: CPI-U
The Consumer Price Index for All Urban Consumers (CPI-U), all items, US city average, not seasonally adjusted, is the Bureau of Labor Statistics’ headline measure of the general price level. It is monthly, and BLS publishes it as a public data file. Like a house price index, its level means nothing alone; the ratio of two values is the change in prices between two dates. The did your home beat inflation tool reads a committed snapshot of it, monthly from January 1975.
The three factors
Home factor = index now ÷ index at purchase
Inflation factor = CPI at the index’s last period ÷ CPI in the purchase month
Real factor = home factor ÷ inflation factor
The home factor is the index method for the smallest area with data. Purchase price × the inflation factor restates what you paid in end-period dollars; the home’s value minus that is the real gain or loss in dollars. The real annual rate is the real factor to the power of one over the years, minus one.
Lining up the ends
The home index stops at its last published period: a year for ZIP and county series (currently 2025), a quarter for state and metro series (currently 2026 Q2). The CPI runs later than either. Using the newest CPI month would charge the home for inflation the index has not seen yet, so the inflation factor ends at the average CPI over the months of the index’s last period. For a ZIP series ending in 2025 that is the 11 published months of 2025 (October 2025 was never published: BLS skipped it in the 2025 shutdown). For a state series ending in 2026 Q2 it is the 3 months of that quarter.
A worked example
You bought in March 2014 for $310,000 in ZIP 78704, in Austin, Texas.
- Home factor: the annual ZIP index was 1529.73 in 2014 and 2984.51 in 2025, so 2984.51 ÷ 1529.73 = 1.95, and the value is $310,000 × 1.95 = $604,811.
- Inflation factor: CPI-U was 236.3 in March 2014 and averaged 321.9 over 2025, so 321.9 ÷ 236.3 = 1.36, or +36.2%.
- What you paid, in 2025 dollars: $310,000 × 1.36 = $422,367.
- Real gain: $604,811 − $422,367 = $182,445.
- Real factor: 1.95 ÷ 1.36 = 1.43, or +43.2% over 11 years, about +3.3% a year.
The same purchase on the state index
| Index | Window | Nominal | Inflation | Real | Real per year |
|---|---|---|---|---|---|
| ZIP 78704 (annual) | 2014 to 2025 | +95.1% | +36.2% | +43.2% | +3.3% |
| Texas (quarterly) | 2014 Q1 to 2026 Q2 | +120.2% | +41.4% | +55.8% | +3.7% |
The state row is real +55.8% against nominal +120.2%: the gap between nominal and real is wider than on the ZIP row because the window runs later, through 2026 Q2, and carries +41.4% of inflation instead of +36.2%. The real per-year figures, +3.3% and +3.7%, are the ones worth comparing across areas and windows, because they already account for both the length of the window and the inflation inside it.
What real appreciation does not settle
Beating inflation is a statement about the house as a store of value and nothing more. Whether owning paid off depends on the interest paid, property taxes, insurance and upkeep on one side, and the rent not paid and the leverage of a mortgage on the other. A home that trailed inflation can still have been the better choice against renting, and one that beat it can still have cost more than it returned. This guide, and the tool, stop at the value.
What this comparison cannot know
- Your house. The value tracks the area’s average. Renovations, condition and lot are invisible to it.
- Sales the index never sees. The FHFA index is built from mortgages bought or guaranteed by Fannie Mae and Freddie Mac, so cash, jumbo, FHA and VA purchases are not in it (FHFA HPI FAQ).
- Your cost of living. CPI-U is a national basket. Your area’s prices and what your household buys differ from it, and BLS’s regional series are not used here.
- The future. Both indexes are history. This is not an appraisal and not a forecast.
Sources
- FHFA House Price Index datasets, the annual ZIP file and the quarterly master file.
- BLS Consumer Price Index, the CPI-U program page.
- BLS CPI flat file, cu.data.1.AllItems, series CUUR0000SA0, the values used.
- FHFA HPI frequently asked questions, on what the index includes.
This guide is for informational purposes only. It is not an appraisal, and not financial, tax, lending or real-estate advice. Every estimate on this site tracks an area’s average, never a particular house. Confirm anything that matters with a licensed appraiser or your lender.
Last reviewed: September 2026 · Against the FHFA House Price Index (annual ZIP file dated March 31, 2026; master file through 2026 Q2) and the BLS CPI-U, series CUUR0000SA0.