Playing behind closed doors could have seen Nottingham Forest lose almost £8m this season.
Prime Minister Boris Johnson announced his planned road map out of lockdown on Monday, with fans earmarked to return to grounds on May 17.
That’s just in time for the last round of Premier League matches and the English Football League play-offs - but is too late for the Reds' last league game, which is on May 8.
That will mean entire campaign without supporters at the City Ground.
For at least half the clubs in the top-flight - and as near as makes no difference for the other half - 2020/21 has been an entire season without matchday income.
That will result in a combined loss of £693.7m for current Premier League clubs, according to their 2018/19 accounts, which are the latest available from when fans could attend all matches.
It’s also a £112.8m loss for clubs currently in the Championship.
That’s a combined total of £806.5m lost in gate receipts by clubs in the top two divisions of English football.
Forest earned £7.6m in matchday income the last time they were allowed fans in the ground for a whole season.
Only three clubs currently in the Championship brought in more through the turnstiles - Norwich City with £9.7m, Watford with £9.2m, and Cardiff with £7.9m.
Premier League sides have huge amounts of broadcast income to soften the blow though, unlike Championship sides.
Matchday income makes up large proportions of turnover at some clubs in the second tier of English football.
Luton’s matchday income in 2018/19 made up 67 percent of their turnover.
For Barnsley it was 47 percent, for Millwall 31 percent, Forest 30 percent, Norwich 29 percent, Sheffield United 28 percent, and Preston North End 26 percent.
Loss of matchday income - Championship
Club // Matchday (£m)
Norwich City // 9.7
Watford // 9.23
Cardiff City // 7.88
Nottingham Forest // 7.59
Swansea City // 6.99
Stoke City // 6.4
Middlesbrough // 6.08
Bristol City // 5.99
Millwall // 5.65
Queens Park Rangers // 5.39
Birmingham City // 5.16
Luton Town // 5.14
Bournemouth // 4.99
Huddersfield Town // 4.99
Reading // 4.73
Blackburn Rovers // 3.73
Barnsley // 3.62
Preston North End // 3.56
Brentford // 3.4
Rotherham United // 2.58
Derby County // Not released
Sheffield Wednesday // Not released
Coventry City // Not released
Wycombe Wanderers // Not released
