American Express profit grew faster after tax. The distinction matters.
American Express's new results show how tax benefits and a business-sale gain affect the earnings comparison. Pretax growth, net income and adjusted earnings answer different questions.
How much of a strong profit quarter should carry into expectations for the next one? American Express's October 23 results make the tax line a useful place to start.
In its original earnings release, American Express, listed on the NYSE as AXP, reported third-quarter pretax income of $4.531 billion, up 18% from $3.825 billion a year earlier. Net income rose 28%, to $3.712 billion from $2.902 billion. Both comparisons cover the quarters ended September 30.
The tax comparison changes the pace
The effective tax rate fell to 18.1% from 24.1%. American Express attributes the decline primarily to discrete tax benefits from resolving certain prior-period tax items.
That matters because after-tax profit depends on both the earnings generated before tax and the share retained afterward. A lower effective rate can help net income rise faster than pretax income, without requiring an equally large acceleration in the underlying business.
The explanation also sets a limit on extrapolation. Resolving an earlier tax matter is a different source of earnings support from making more money on an ongoing customer relationship. This release does not establish that the same benefit will recur next quarter.
Pretax income still needs context
The 18% pretax increase is not a clean measure of recurring performance either. The quarter included a $982 million pretax gain from selling the company's stake in Global Business Travel Group, alongside restructuring costs.
American Express's adjusted net income excludes the sale gain and the restructuring charge, with their tax effects. That company-defined, non-GAAP measure increased 11%, to $3.214 billion.
The adjustment has a specified scope. It should not automatically be read as removing every factor that might vary between quarters, including the separately described tax benefits.
Our reading is that the next earnings comparison needs two checks: what profit remains after identifying transaction-related items, and what tax assumptions sit beneath the after-tax result. Substituting one headline growth rate for both questions would hide useful information.
A stronger reported quarter is still a stronger reported quarter. Judging its repeatability requires understanding the sources of that strength, rather than assuming the fastest-growing earnings measure describes the pace of the whole business.