The Portuguese has overseen the arrivals of both Andre Schurrle and Marco van Ginkel in big-money moves since returning to Stamford Bridge for a second spell in charge in June.
And, with no significant departures yet to arise at the club, Mourinho dismissed the need to balance the books to satisfy Uefa's guidelines and hinted at future signings before the end of the transfer window.
"The club is solid. The club is very well organised, the numbers are correct," Mourinho told Sky Sports News. "We as a club want to follow the Financial Fair Play rules, but we are in a very stable situation. I like the squad, I like the profile. I like the fact we have a very young squad with three or four experienced players that are still in a fantastic moment of their career.
"The market is open and anything can happen, but it depends on the opportunities and it depends if the market really starts, because at the moment the market is very stopped. We are okay, we are very much okay. If the transfer window closed tomorrow and we do nothing, I am more than happy."
Branislav Ivanovic is reportedly been attracting interest from elsewhere, but Mourinho claims no concrete offer has been forthcoming before underlining his determination to keep the Serbia international at the club.
"They didn't contact Chelsea. If there was any interest, it was not official," he added. "As a manager, a board, we have the responsibility of running the club, and the owner, and we are very, very clear that there is no chance that Ivanovic will leave Chelsea."
- Sports & Recreation