The First Division club were found guilty of breaking the SFA's rules by entering administration but their punishment complements a sanction already imposed by the Scottish Football League.
The SFA ruling means Dunfermline will be unable to sign any player aged over 21 until the end of the year.
Administrator Bryan Jackson said: "Whilst not welcoming any sanctions which limit the club's ability to perform, I believe that we got a fair hearing from the SFA and that they adequately took into account the specific circumstances that we face at Dunfermline.
"I recognise that they had to impose a penalty on the club for going into administration and believe that the transfer embargo until 31/12/2013 on players aged over 21 matches, to an extent, the existing SFL sanctions and is a reasoned response from the SFA.
"Whilst we are awaiting the written official judgement it is unlikely that we will be appealing this decision."
The SFL had previously imposed the same transfer embargo until the club come out of administration.
The league body also issued the Pars with a 15-point deduction, which ultimately consigned them to the play-offs.
Dunfermline lost the first leg of their semi-final 3-1 against Forfar at Station Park on Wednesday night and have set prices for Saturday's second leg at £10 for adults and £5 for concessions.
Jackson said: "The club is going through difficult times both on and off the pitch and I hope that we can now put these issues behind us and continue the battle to keep the team afloat financially and win in the play-offs."
- Sports & Recreation