The payroll processor lifted its outlook for interest income on client funds and for its fastest-growing segment. Its core business grew 4%, and its company-wide revenue forecast did not change.
Paychex reported double-digit earnings growth on Wednesday, raised two parts of its forecast and then watched its stock drop sharply.
For the fiscal first quarter, total revenue rose 6% to $1.63 billion. Diluted earnings increased 14% to $1.21 a share, and adjusted earnings rose 10% to $1.34 a share, ahead of the $1.32 analysts had expected. Net income climbed 12% to $429.7 million. Operating margin widened to 38.0% from 35.2%, and adjusted operating margin rose to 42.0% from 40.7%.
The stock fell about 7.5% to $105.95.
The composition of the quarter shows where the growth came from. Management Solutions, the company's core payroll and human-resources software business, generated $1.21 billion of revenue, up 4%. PEO and Insurance Solutions, which handles outsourced employment services, brought in $367.6 million, up 12%.
The guidance followed the same split. Paychex raised its fiscal 2027 growth forecast for PEO and Insurance Solutions to 7% to 8% from 6% to 7%. It raised its forecast for interest on funds held for clients to $200 million to $210 million, from $195 million to $205 million. It held its outlook for total revenue growth at 5% to 6% and for adjusted earnings growth at 7% to 9%.
The interest line connects directly to the rate environment. Paychex collects payroll funds from clients before paying them out to employees and tax authorities, and it earns interest on that money while it holds it. When short-term rates rise, that income rises with them. With the two-year Treasury yield at its highest level since 2024 and futures markets now pricing a likely Federal Reserve hike in October, the company's float is worth more.
That leaves investors weighing two parts of the same report. One part is a company converting modest revenue growth into faster profit growth through wider margins and higher interest income. The other is a core software business growing in the low single digits, with the full-year revenue range unchanged even after the upgrades to two components.
The stock move does not say which of those investors emphasized, and the session made that harder to read. The broader market fell as Treasury yields jumped to their highest since 2007.
Paychex's own figures offer a way to track the question. If Management Solutions growth accelerates from 4% over the coming quarters, the unchanged total range may prove conservative. If it holds near current levels, more of the company's growth will depend on the PEO business and on rates staying high.