Deduction can not be availed in this case under any section. Section 37 is for ALLOWING EXPENDITURE, ADVANCE payment is not an expense then how will you claim deduction?
(Bad debt is a different case since it is non payment of revenue which has been recognized in the book for both accounting aswell as tax purpose, allowing bad debt means writting off that part of sales which should not be included in total sales)
You can sue the party though.
And as pointed by other members even depriciation can not be availed for tax purposes.
@ Mr. Yogesh Bhandari
"When it will be treated as income to the receiver then it should be allowed as deduction to the payer..."
How is it treated as income?
As per AS-9 revenue recognition para 6.1
A key criterion for determining when to recognise revenue from a transaction involving the sale of goods is that the
seller has transferred the property in the goods to the buyer for a consideration. The transfer of property in goods, in most
cases, results in or coincides with the transfer of significant risks and rewards of ownership to the buyer. However, there
may be situations where transfer of properly in goods does not coincide with the transfer of significant risks and rewards of
ownership. Revenue in such situations is recognised at the time of transfer of significant risks and rewards of ownership to
the buyer. Such cases may arise where delivery has been delayed through the fault of either the buyer or the seller and the
goods are at the risk of the party at fault as regards any loss which might not have occurred but for such fault. Further,
sometimes the parties may agree that the risk will pass at a time different from the time when ownership passes.
And also according to income tax (If am not mistaken) this is the basis for sales. So if the sales have not been recognized then income has also not been recognized and if IT is not allowing deduction for advance payment to buyer also, then where is prob.?