Air carrier first officer reported he selected toga before the engines had reached 40%.

Attributes
ACN	1767818
Time
Date	202010
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	Commercial Fixed Wing
Operating Under FAR Part	Part 121
Flight Phase	Takeoff
Flight Plan	IFR
Person 1
Function	Pilot Flying First Officer
Qualification	Flight Crew Instrument Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy Deviation - Speed All Types

Narrative:

I was the flying pilot. I rolled onto runway xl and selected toga by accident prior to thrust reaching 40%. Probably selected toga [at] approximately 25%. Very little split in thrust upon full spool up; held brake upon realizing my mistake so to prevent adverse movement of aircraft. No issues and continued normal departure.this was my first trip to fly since month. This was an accident that I realized had taken place as soon as it took place. I need to pause and think before selecting toga.

Original NASA ASRS Text

Title: Air carrier First Officer reported he selected TOGA before the engines had reached 40%.

Narrative: I was the flying pilot. I rolled onto Runway XL and selected TOGA by accident prior to thrust reaching 40%. Probably selected TOGA [at] approximately 25%. Very little split in thrust upon full spool up; held brake upon realizing my mistake so to prevent adverse movement of aircraft. No issues and continued normal departure.This was my first trip to fly since month. This was an accident that I realized had taken place as soon as it took place. I need to pause and think before selecting TOGA.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.