Yes , You have to deduct all Advance tax paid , TDS deducted by client , Self Assessment Tax paid ( if any ) , while paying the Income Tax assess by the Income tax department in the assessment year . . if you refer ITR2 , ITR3 , ITR4 , ITR6 you will find all these adjustments at the end .
Following manner you have account
So you do not know how much income tax payable to Govt on 31. st march , therefore you have make provision for Income tax on 31st march .
profit & Loss A/c Dr
To provision for Income Tax A/c Cr
( provision for income tax )
also Any Advance tax paid , TDS deducted by client ( as above ) , you have carried forward to next F.Y .
After assessment in the next year , pass adjustment entries as follows
provision for Income Tax A/c Dr
To Advance Tax A/c Cr
To TDS deducted A/c Cr
To income Tax payable A/c Cr
( income tax payable after adjustments )
Income tax payable A/c Dr
To Bank A/c Cr
( Income tax for last F.Y paid )
Confirm with company CA as well .