Theres nothing in the guidance note in respect of above taxes but according to sec 145A
the valuation of purchase and sale of goods and inventory for the purposes of determining the income chargeable under the head "Profits and gains of business or profession" shall be - (a) In accordance with the method of accounting regularly employed by the assessee; and
(b) Further adjusted to include the amount of any tax, duty, cess or fee (by whatever name called) actually paid or incurred by the assessee to bring the goods to the place of its location and condition as on the date of valuation.
Explanation : For the purposes of this section, any tax, duty, cess or fee (by whatever name called) under any law for the time being in force, shall include all such payment notwithstanding any right arising as a consequence to such payment.
Therefore sale should include amount of all taxes except for those which are specifically mentioned
Accounting plays a vital role here, as excise and VAT may be allowed or disallowed I think similarly other taxes may be allowed or disallowed
You have this in Service tax also, you create seperate account for the purpose of credit and balance amount is deposited/c/f
To be on safe side Taxes should be included