Clay Helton earned about $2.6 million in compensation in 2016, his first calendar year as USC’s football coach, according to the university’s new federal tax return.

The period covers the fiscal year from July 1, 2016 to June 30, 2017, and compensation information for the 2016 calendar year. USC provided the return Tuesday in response to a request from the Southern California News Group. Records for 2017 are not available.

Helton, 45, was promoted from interim coach in late 2015, replacing Steve Sarkisian, and given a five-year contract by then-Athletic Director Pat Haden.

In 2016, USC paid Helton, who had not previously been a head coach, a base salary of $2,267,774. He also earned $30,500 in bonus pay, $249,530 in other reportable income, $26,500 in retirement and $51,661 in nontaxable benefits.

The salary data provided the first look at Helton’s annual compensation since being named the permanent head coach.

Private colleges and universities are not required to reveal salary information through public records requests, but file annual tax returns as non-profit organizations with the IRS that list their highest-compensated employees.

Helton, in his first full season in 2016, steadied the Trojans through a turbulent 1-3 start, their worst in 15 years, before a 10-3 finish, including the dramatic comeback win over Penn State in the Rose Bowl.

He led the team to an 11-3 record in his second season last fall, including a victory in the Pac-12 championship game over Stanford for its first conference title since 2008. The season ended with a 24-7 loss to Ohio State in the Cotton Bowl.

No previous USC coach won at least 10 games in his first two seasons.

In February, Helton signed a contract extension with the school through 2023. Terms were not disclosed, leaving it unclear if Helton also received a raise.

Helton’s salary was about $1 million less than what USC paid Sarkisian in his first season as the Trojans’ football coach, according to prior years’ returns. Sarkisian, who was hired away from Washington, made about $3.7 million in 2014, seeing the Trojans finish 9-4 with a Holiday Bowl win.

Former football coach Lane Kiffin made about $2.4 million in his first season in 2010.

Helton’s compensation may trail most other Pac-12 football coaches. His pay would have ranked 11th among the conference coaches on USA Today’s 2017 football coaches salary database. There were seven Pac-12 coaches that made at least $3 million, led by former Arizona coach Rich Rodriguez who made more than $6 million.

USC’s new tax return also showed Haden made about $2.8 million in 2016, including his final six months as the athletic director plus work in a role as a special advisor for USC President Max Nikias.

After stepping down as athletic director on June 30, 2016, Haden, who was the school’s highest-paid sports figure for the year, was tasked with overseeing the ongoing $270 million renovation of the Coliseum for one year.

Haden was paid a base salary of $1,472,203, plus $1,000,000 in bonus pay, $260,539 in other reportable income, $26,500 in retirement and 27,197 in nontaxable benefits. His total compensation rose, slightly, making about $8,000 more in 2016.

Compensation information for Lynn Swann, who was hired as athletic director to replace Haden in July 2016, was not included.

Men’s basketball coach Andy Enfield, who made $1.9 million in 2014, was not listed in the filing for a second straight year. A school spokesperson did not immediately return a message seeking clarification. Sarkisian and Kiffin, who were paid a combined $5.5 million in 2015, were no longer listed.