The U.S. Women's Open purse will increase to $4 million for next months' event at Pinehurst No. 2, up from $3.25 million last year, according to GolfDigest.com.
The USGA would neither confirm nor deny the purse increase.
"We will be announcing the purse of the U.S. Women's Open in our normal time frame, around the week of the championship proper," a USGA spokesperson told GolfDigest.com.
The winner's check will increase to $720,000, up from the $585,000 that Inbee Park won last year, according to the report.
The USGA has signed what Golf Digest reported as a $1.1 billion, 12-year deal with Fox Sports, a new TV deal that begins next year.