Fiserv, Small Business Index, August 2026 data, published September 3.

The Fiserv Small Business Index held at a seasonally adjusted 145 in August, with overall small-business sales up 1.3 percent year over year but down 0.2 percent from July. The index draws on point-of-sale data from roughly 2 million US small businesses, including merchants on Fiserv’s Clover platform, which makes it one of the more granular reads available on how small merchants are actually doing month to month rather than a survey-based sentiment number.

What the Fiserv Small Business Index shows for August

The detail worth sitting with is where that 1.3 percent growth came from. Average ticket size rose 3.0 percent year over year, while transaction volume fell 1.8 percent, meaning the sales growth is coming almost entirely from customers spending more per visit, not from more visits. Foot traffic has now declined for ten straight months. Category breakdowns show gas station sales up 15.1 percent year over year on average tickets up 16.3 percent, driven by geopolitical pressure on oil prices even as fill-up frequency dropped, while grocery sales slipped 1.4 percent.

Restaurants were close to flat overall: limited-service sales fell 2.5 percent year over year with transactions down 4.2 percent, while full-service sales rose a modest 0.9 percent.

Total retail sales grew 0.6 percent year over year but fell 0.8 percent month over month. Essentials spending, up 1.8 percent year over year, continued to outpace discretionary spending, up 0.9 percent, with the gap driven by sharper foot-traffic erosion in discretionary categories. Fiserv chief data officer Prasanna Dhore summed it up simply in the release: consumers are “still spending, but they’re making fewer trips and becoming more deliberate with their purchases.” The data sits alongside other 2026 moves from Fiserv, including becoming the exclusive payments provider behind the Datavault AI athlete NIL marketplace, part of a broader push to embed its rails into new corners of commerce.

Fintechbits analysis

Why the Fiserv Small Business Index number matters more than it looks

Ten consecutive months of falling foot traffic is the number that matters more than the headline sales growth, and it is easy to miss if you only read the top line. A small business celebrating 1.3 percent year-over-year growth is not necessarily doing better than it was a year ago, it may just be selling the same or fewer items at higher prices to fewer customers, which is a much less comfortable position to be in heading into a slower season.

That pattern, essentials holding up while discretionary categories erode, lines up with the broader value-seeking consumer narrative that has shown up across retail and card-network commentary through 2026, and it echoes the same kind of market-share pressure playing out across the roughly 26 trillion dollar digital payments market more broadly, where processors are competing harder for a smaller pool of discretionary transactions.

What makes Fiserv’s data more useful than most consumer-spending commentary is the transaction-level backing. Survey-based sentiment indexes can drift from what people actually do with their money, but point-of-sale data from 2 million merchants does not have that problem, which is why this monthly release tends to get cited well beyond the fintech press. Retailers and small merchants reading this data are left navigating a similar tension of their own, watching customers spend more per visit while showing up less often than they did a year ago.

What to watch next

The next read to watch is September, given gas prices are already elevated on geopolitical pressure. If that essentials-versus-discretionary gap widens further while transaction counts keep falling, that is a clearer signal of consumer strain than anything in this month’s report on its own.