Making your losses count

When Chapter 9 split your trading into speculative and non-speculative, it promised this chapter, because the split matters most for losses. A loss in the market is painful, but it is not simply money the tax system ignores. The law lets you use a loss to reduce the tax on your gains, both this year and, for what is left over, in future years. The rules for which loss can cancel which gain are strict and specific, and one small condition, filing your return on time, decides whether you keep the right to carry losses forward at all.

Two kinds of set-off

Using a loss against a gain is called set-off, and it happens in two stages within a year. Intra-head set-off is using a loss against a gain under the same head of income, for example one capital loss against another capital gain. Inter-head set-off is using a loss left over under one head against income under a different head, for example a business loss against some other income. Both happen in the same year, before anything is carried forward, and both are governed by rules about what can offset what.

The rules, loss by loss

The rules differ by the kind of loss, and the following is the durable framework, with the exact carry-forward periods to be confirmed against the current law.

A short-term capital loss (STCL) is the most flexible capital loss: it can be set off against either short-term or long-term capital gains. A long-term capital loss (LTCL) is narrower: it can be set off only against long-term capital gains. Both, if unused, can be carried forward, commonly for up to eight years, but only against future capital gains.

A speculative business loss, your intraday equity loss, is the most ring-fenced of all, as Chapter 9 warned: it can be set off only against speculative gains, and carried forward only against future speculative gains, for a shorter period, commonly four years.

A non-speculative business loss, your F&O loss, is treated more generously: in the same year it can be set off against income under most other heads, a notable exception being salary, and any unused part can be carried forward, commonly for up to eight years, against future business income.

Two worked examples

See the capital rules first. Suppose for the year you have a long-term capital gain of 1,00,000, a short-term capital loss of 40,000, and a long-term capital loss of 30,000. The flexible STCL can reduce the long-term gain, taking it to 60,000. The LTCL, which may only touch long-term gains, reduces it further to 30,000. So your taxable long-term gain is 30,000, and two losses that might have felt wasted have cut the tax sharply. (All figures illustrative.)

Now a business example. Suppose your F&O trading made a non-speculative loss of 1,00,000 this year, and you also earned 60,000 of other income that it may be set off against, not being salary. The loss wipes out that 60,000, and the remaining 40,000 of loss is carried forward to set against business income in future years. None of it is wasted, provided you meet the one condition below.

The condition that people forget

Here is the rule that quietly costs careless traders their losses. To carry a loss forward to future years, you must file your income tax return by the due date for the year. File late, and while you may still set off losses within that same year, you generally lose the right to carry the unused part forward. For a trader who had a bad year, this is the cruellest mistake of all: the losing year is exactly when carrying the loss forward matters most, and missing the filing deadline throws that benefit away. File on time, every year, especially a losing one.

What to carry forward

Losses can be set off against gains and carried forward under strict, type-specific rules: short-term capital losses are flexible, long-term capital losses offset only long-term gains, speculative losses are ring-fenced to speculative gains, and non-speculative losses offset most income but not salary, each carried forward for its own period. Above all, a loss can be carried forward only if you file your return on time, so never skip filing in a losing year.

Losses are one drain on returns; costs are the other, and they are paid on every trade whether it wins or loses. The next chapter lays out the full cost stack of trading, from the securities transaction tax to GST.