England will share a jackpot of more than £3.5 million if they win a second successive Grand Slam during this year’s RBS Six Nations Championship, The Daily Telegraph can reveal.

Of that figure, £1 million is a ­special squad bonus for emerging victorious, the rest made up of match and training fees and image rights. The deal was concluded this week following third-party negotiations with the Premiership clubs and it will vastly strengthen England’s position as the highest-paid squad in world rugby.

The squad bonus alone for winning the Grand Slam has soared by 66 per cent from the £600,000 Eddie Jones’s side received last season for completing their first championship clean sweep since 2003. It is not just the players who will be in the money. The Rugby Football Union stands to net £20 million from a top-two England finish.

If England were to win the Six Nations but without completing the Grand Slam, it is understood that the players would share a bonus pot of around £610,000, up from £368,000 last season. The new ­bonus structure is on top of the new player payments deal, struck ­between the RFU and the Rugby Players’ Association, which was revealed in November.