blues boss Guy Whittingham insists he will never allow his pursuit of progress to put the club in jeopardy.
Pompey have recruited four new faces in recent weeks with Gavin Mahon and Thery Racon signing one-month contracts.
John Marquis and Trevor Carson have also arrived on loan.
Some concerns have been voiced at the extra outlay on player salaries.
But chief executive Mark Catlin has confirmed the first-team playing budget has still only reached 30-per-cent of the club’s turnover.
That is still way below the 55-per-cent maximum set out for League Two clubs under Uefa’s financial fair play regulations.
Increased revenue from season ticket sales, attendances and the improved commercial income has seen Whittingham given some extra room to manoeuvre.
He will continue to ask questions on what can be done to add quality to his squad.
But he knows only too well how close Pompey came to liquidation and gladly accepts the restrictions that are in place.
‘People can be reassured,’ Whittingham said.
‘I went through that and there is no way whatsoever we will be going back there.
‘We are trying to be as successful as we possibly can and we will keep pushing that.
‘But we also know where the limits are.’
While previous managers have been in conflict with the chief executive or owners in trying to boost their resources, Whittingham believes there is a stark difference in the way the club is now run.
He said: ‘The budget has just been adjusted but it’s my job to keep pushing.
‘If the board say financially that we can’t do it, then fine.
‘But then you might have the conversation where things can be done if you put a player out on loan yourself.
‘All those things you’ve got to think about.
‘It’s a more open channel of communication and that is the purpose of having people who really care in charge of the club.
‘It shows that this club is going in the right direction and being run properly by people who care about it.
‘I wouldn’t say there’s a struggle at all. We have a great working relationship.
‘The coaching staff, the chief executive, the chairman and the board members all understand where we are.’
Marquis’ loan period expires after the Bury game on Saturday and it’s unclear whether it will be extended.
But the manager has also been told he can add further new additions if the situation warrants it and the right recruits are available.
Whittingham said: ‘We are very careful and I think it bodes well for the club going forward.
‘But let’s not take away the fact that it’s the huge fan base that has given us this uplift in our finances throughout the club – not just in the first team.’