Indeed, the north London side are reported to be preparing a £12 million offer for McCarthy - with Aaron Lennon also included as part of the deal.
The Mail suggest Tottenham value Lennon at £9m but intimate that Everton will 'probably' reject the White Hart Lane outfit's offer, potentially kicking off a lengthy series of negotiations.
All out attack?
The news, however, represents a slight change of tact from the north London side. Are they now going all out for McCarthy to avoid another Morgan Schneiderlin scenario - where the player ultimately ended up being snapped up by someone else despite Tottenham interest?
An aggressive pursuit for McCarthy makes sense as Tottenham are clearly in need of another central midfielder. Boss Mauricio Pochettino may be willing to give Mousa Dembele more of a chance next season but, considering those the north London side have sold, at least one more addition is needed.
Lennon, too, has been deemed surplus to requirements at Spurs and so makes sense as a player Tottenham can bargain with. The winger impressed while on loan at Everton and this method avoids the problem of them having to pay over the odds for the 28-year-old.
That said, the Toffees would no doubt prefer missing out on Lennon to selling one of their prized assets. But, for Tottenham, it's a strong sign of intent - one that possibly represents a change of tact in light of Schneiderlin's recent move to Manchester United.