"I make this announcement as early as possible to ensure that quality conservative candidates have time to prepare for a vigorous campaign in 2020," Woodall said.
Woodall said part of the reason he decided to leave was the recent death of his father, and the realization that working on Capitol Hill had cost him time with his dad.
"I don't want to make that mistake with other family members," Woodall added.
The Lawrenceville Republican barely survived a 2018 election surge for Democrats in suburban areas around the nation, a shift which swept Rep. Karen Handel (R-GA) out, as Democrats picked up a net gain of 40 seats in the House, winning in areas once thought to be reliably Republican - in the GOP suburbs of Atlanta, Houston, Dallas, Oklahoma City, Minneapolis, Denver, and in southern California.
Woodall has been known as the chief sponsor in the U.S. House of the "FairTax" - a plan which would move the United States away from an income tax system, and instead bring in federal revenue through a consumption tax, paid at the point of sale.
Woodall admits it is unlikely he will be able to get a vote on that plan before his term expires in the first days of 2021.
"Yes, one day there will be a vote on the FairTax, it will be when a President demands it," Woodall said.
"It hurts my heart when someone says that Republicans did tax reform last year. No, Republicans did tax cuts," the Georgia Republican said.
The 48 year-old Woodall worked in Congress before being elected to the House, as he was a staffer for ex-Rep. John Linder (R-GA), who retired before the 2010 election.
"Believe it, I'm sorry to see you go," Rep. Jim McGovern (D-MA) told Woodall just off the House floor, soon after news of his decision was made public.
"I'm hoping you're going to moderate," McGovern said, as the two adversaries on the House Rules Committee laughed and shook hands.