The American consumer has been the engine of the economy for years, and in 2026 that engine is still running, just on increasingly thin fuel. Households are spending more even as their inflation-adjusted incomes shrink, a divergence that economists describe as a K-shaped economy.
Spending Up, Income Down
Recent data captured the tension perfectly. In one month, consumer spending rose about 0.5% even as disposable personal income slipped 0.1%. Over the past year, average hourly earnings climbed roughly 3.6%, but real per capita disposable income actually declined around 1.4%, the first sustained negative readings in a couple of years.
When spending outpaces income, the gap has to come from somewhere. In 2026, it is coming from savings.
The Vanishing Savings Cushion
The personal saving rate has fallen sharply, dropping to about 2.6%, down from 3.2% the prior month and over 4% earlier in the year. Households are drawing down the buffers they built up earlier in the decade to maintain their lifestyles in the face of higher prices.
- A lower saving rate boosts short-term spending.
- But it leaves households more exposed to any income shock.
- It is mathematically unsustainable if incomes keep lagging.
What Is a K-Shaped Economy?
The letter K captures how different groups are moving in opposite directions. The upper line of the K represents higher-income, asset-owning households who are benefiting from rising equity and home values. The lower line represents lower-income households who rely on wages, feel inflation most acutely, and have little cushion.
The Wealth Effect Doing the Heavy Lifting
A striking feature of 2026 is that aggregate consumer spending has grown faster than aggregate wages. The explanation is the wealth effect: rising stock prices, partly driven by enthusiasm around artificial intelligence, have made asset-owning households feel richer and more willing to spend. That is good news while markets rise, but it ties the consumer economy to the fate of financial markets.
The Tariff Squeeze
Adding pressure, tariffs have increasingly shown up in consumer prices, eroding purchasing power just as nominal wage growth moderates. For households without stock portfolios, that is a direct hit to real income with no offsetting wealth gain.
Why This Matters
Consumer spending accounts for roughly two-thirds of US economic activity, so its trajectory shapes the entire outlook. The current setup is resilient on the surface but fragile underneath: spending propped up by falling savings and rising asset prices rather than by durable income growth. If markets wobble or the job market softens, the lower half of the K has little left to lean on, and the spending engine could stall quickly.