Paychex is no longer just the small-business payroll processor that Rochester built. The April close of Paycor HCM pushed the franchise upmarket and left the equity arguing about what remains after the deal arithmetic fades. Management framed the latest completed year as proof that organic growth accelerated through the year while the acquired platform was folded into a two-brand human-capital stack. The debate is whether that organic step-up is durable enough to replace the acquisition increment now that the anniversary has arrived.
The latest year grew on a deal-inflated base. Total revenue reached $6.5B. That is a seventeen percent lift versus the prior year. Paycor contributed about twelve points of the increase, which means the organic engine was real but not the headline. Organic growth nearly doubled from a low-single-digit exit the year before, improving each quarter as the sales force was realigned. Adjusted operating margin expanded even as reported operating margin slipped under deal amortization. Client-fund interest jumped on larger Paycor balances, which is the line that now turns into a headwind as rate cuts and one-time portfolio gains roll off.
Fourth-quarter revenue was $1.6B. Growth was twelve percent on a full Paycor quarter against a stub period a year earlier. Adjusted diluted earnings were $1.32. That print sat a penny around Street consensus and still left the coming year guided to mid-single-digit revenue growth with adjusted earnings growth in the high single digits. The question the next several quarters resolve is whether revenue per client and Paycor mix can carry the franchise after float income fades.