Agricultural income is exempt under s.10(1), but it is not ignored. If your agricultural income exceeds Rs 5,000 and your other income exceeds the basic exemption limit, partial integration aggregates the two to fix the rate on your non-agricultural income, so the exempt income still raises your effective rate.
Section 2(1A) defines agricultural income in three limbs. The first is rent or revenue derived from land situated in India and used for agricultural purposes, where the recipient has an interest in the land. The second is income derived from that land by agriculture, or from a process ordinarily employed by a cultivator to make the produce fit for market, or from the sale of that produce by the cultivator. The third is income from a farm building on or near the land, occupied by the cultivator or receiver of rent, and used in connection with the land. Income from nursery operations for saplings and seedlings is also treated as agricultural.
Three conditions run through all of it. The land must be situated in India, it must be used for agricultural purposes, and the income must be derived from that land. All three must hold together. Land abroad produces taxable income; rent for non-agricultural use of agricultural land is not agricultural income.
The leading authority is CIT v Raja Benoy Kumar Sahas Roy (1957), which drew the line between basic operations on the land — tilling, sowing, planting — and subsequent operations, and held that subsequent operations qualify only when they follow basic operations on the same land. That is why spontaneous forest growth and timber sales fall outside, and why poultry, dairy and animal husbandry, which do not involve cultivation of soil, are outside as well. Later cases have applied the tests to seeds, fruits and vegetables, and to plantation crops; the burden of showing that a receipt is agricultural rests on the taxpayer.
Where growing and manufacturing are combined, the rules split the income by formula rather than by evidence. Under the composite income rules, tea grown and manufactured is 60% agricultural and 40% business income; rubber grown and manufactured is 65% agricultural and 35% business; coffee grown and cured is 75% agricultural and 25% business; and coffee grown, cured, roasted and ground is 60% agricultural and 40% business. Rule 7 supplies the general method for other composite cases.
Section 10(1) then exempts agricultural income from total income. The exemption exists because taxation of agricultural income is a State subject, not because Parliament thinks farm income should not be taxed.
Partial integration is where the exemption stops being a complete answer. It applies to individuals, HUFs, AOPs, BOIs and similar persons where net agricultural income exceeds Rs 5,000 and non-agricultural income exceeds the basic exemption limit. The computation is: tax on (non-agricultural income plus net agricultural income), less tax on (basic exemption limit plus net agricultural income), then reduce by any rebate and add surcharge and cess. What is left is the tax on your non-agricultural income, computed at the rate the combined figure attracts.
The practical effect is a rate effect, not a charge on the farm income. But it is a large one. A worked example in commentary shows a taxpayer with Rs 8 lakh of salary and Rs 6 lakh of agricultural income paying roughly Rs 1.56 lakh instead of roughly Rs 75,400 — the farm income is still exempt, but it has dragged the salary into higher slabs.
People treat exempt as invisible and then cannot explain the demand. Partial integration means agricultural income changes the rate on everything else once both thresholds are crossed. It also means the boundary questions — is this nursery income, is this a farm building, is this really cultivation — decide not just whether the farm income is taxed but what rate your other income bears.
I hold shares in a tea company and 60 per cent of its income is exempt as agricultural income. Is 60 per cent of my dividend exempt too?
I draw a salary from my firm, which grows and manufactures tea. Only 40 per cent of the firm's income is taxable as business income - is my whole salary taxable, or only 40 per cent of it?
I sell timber from forest land that we prune, weed and replant. Is that agricultural income?
Our tea company exports. Should the section 80HHC deduction be worked out on the whole composite income before Rule 8 splits it sixty-forty, or only on the forty per cent that is taxable?
I grow and manufacture tea, so only part of my income is taxed under the Income-tax Act. When I carry the written down value forward, does the Assessing Officer deduct the whole year's depreciation or only the taxable proportion?
I grow mulberry, feed the leaves to silkworms and sell the cocoons. Is the whole income agricultural income and exempt?
The Commissioner wants to revise my assessment. What does he actually have to establish?
I grow sugarcane and crush all of it in my own mill, so I never sell any cane. My cost of cultivation is higher than the market price. Can the Assessing Officer still deduct the market value of the cane under rule 7 instead of my actual costs?
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