Saracens will be relegated from the Gallagher Premiership at the end of this season following their salary cap breaches.
The Premiership title holders’ crashing fall from grace was confirmed by Premiership Rugby on Saturday.
Winners of four league titles in the last five years, Saracens will play in the Championship next term.
The reigning European champions will contest a place in the Heineken Champions Cup quarter-finals on Sunday when they host French opponents Racing 92.
But domestically, they have just five months left in the Premiership before exiting it and joining English rugby union’s second tier alongside clubs like Ampthill, Jersey and Hartpury.
Saracens faced the impossible task of reducing their wage bill by up to £2million to comply with salary cap regulations for the current season.
Saracens were fined £5.36million and docked 35 points in November for being in breach of the salary cap for the last three seasons, but patience ran out among their Premiership rivals over their efforts to slash their existing wage bill.
It had been reported that players and staff were told on Friday morning the club would accept an additional 35-point deduction for operating above the £7million limit for the 2019-20 campaign.
Premiership Rugby chief executive Darren Childs said: “Premiership Rugby is prepared to take strong action to enforce the regulations governing fair competition between our clubs.
“At the conclusion of dialogue with Saracens about their compliance with the salary cap regulations, it has been decided that Saracens will be relegated at the end of this season.
“At the same as enforcing the existing regulations, we want to ensure a level playing field for all clubs in the future, which is why we have asked Lord Myners to carry out an independently-led review of the salary cap.”
Saracens are currently bottom of the table with minus seven points, lying 18 points behind 11th-placed Leicester.
Saracens chairman Neil Golding said: “As the new chairman of Saracens, I acknowledge the club has made errors in the past, and we unreservedly apologise for those mistakes.
“I and the rest of the board are committed to overseeing stringent new governance measures to ensure regulatory compliance going forward.”
Premiership Rugby introduced its salary cap in 1999 to ensure the financial viability of all clubs and the competition.
Saracens’ sizeable England contingent – one that includes the likes of national captain Owen Farrell, Maro Itoje and Billy Vunipola – would still be available for international selection if they were playing in the Championship.
But it would be an unsatisfactory situation for England head coach Eddie Jones, who is due to announce his Six Nations squad on Monday.
And Saracens’ demise could also affect their top players’ British and Irish Lions selection chances for the 2021 South Africa tour if they remain at Allianz Park.
It now remains to be seen how many of Saracens’ leading names will still be at the club next term.
Saracens, meanwhile, will not be in European competition next season, and if, as expected, they return to the Premiership in 2021, they would compete in the second-tier Challenge Cup, rather than blue riband Champions Cup.
Even if they successfully retain the Champions Cup crown this season, they will not be able to defend it next term as they would require Premiership status to take part.