Derby County won promotion to the Premier League last year
Promotion to England's Premier League is worth at least £60m and is the biggest financial boost a football club can receive, analysts Deloitte say.
The Championship teams who win a Premier League place get £30m from TV rights, plus £5m from extra sponsorship and merchandising deals each season.
Even those who are relegated after one season get £24m over the next two years, taking the total to about £60m.
That is more than the Champions League, which can net English clubs £30m.
The size of the prizes is set to attract more money into the game, according to the accountancy firm Deloitte.
"There will continue to be significant investor interest from around the globe for English clubs, in part driven by the prospect of the financial rewards and global exposure of the Premier League competition," said Alex Byars from Deloitte's Sports Business Group.
Three Championship clubs will be promoted to the Premier League next season. The two highest placed teams gain automatic promotion, with the third place going to the winner of a round of play-off matches.
League One football clubs winning spots in the Football League Championship next season will also receive a 30% increase in revenue.
Already-promoted Swansea City and two others can expect to receive a financial boost worth £1.4m, according to Deloitte.
English teams - though not recently promoted ones - are amongst the most valuable football clubs in the world, according to a recent rich list.
Forbes magazine this week named Manchester United the world's most valuable football club, worth £905m.
Fellow Premier League title contenders Arsenal were third, valued at £603m.