Tax deduction on short margin penalty

As per a Quicko article, penalties cannot be claimed as a business expense -

Expenses which a Trader cannot claim in Income Tax Return

  • Personal Expenses – An expense incurred for personal purposes is not deductible.
  • Fines & Penalties – The non-compliance or delay in compliance attracts interest and penal consequences. Hence, interest, fine, late fee, penalty, etc. are not a valid deductible.

They also mentioned about it in another thread -