Section 80G is usually described as “the donation deduction” - a single benefit for giving to charity. It actually splits into four distinct categories, along two independent axes: how much of the donation qualifies (100% or 50%), and whether that amount is capped at 10% of adjusted gross total income or allowed without any cap at all.
- 100% deduction, no qualifying limit: funds like the Prime Minister’s National Relief Fund and the National Defence Fund - the full donation is deductible, with no ceiling tied to income.
- 50% deduction, no qualifying limit: a smaller list of funds get the uncapped treatment, but only half the donation is deductible.
- 100% deduction, capped at 10% of adjusted gross total income: the full amount qualifies, but only up to that income-linked ceiling - donate more, and the excess earns nothing further.
- 50% deduction, capped at 10% of adjusted gross total income: most registered charitable trusts and NGOs fall here - both the rate and the ceiling work against the donor at once.
Identical Donations, Different Deductions
The consequence: ₹1 lakh given to two different, equally legitimate causes can produce a deduction of the full ₹1 lakh in one case and as little as ₹50,000 - or less, once the income cap binds - in the other, purely because of which category the recipient organisation falls into. The cause, the donor’s intent, and the amount can be identical; the tax outcome isn’t.
The tax benefit is, and should stay, a secondary consideration to the cause itself for most donors - it isn’t what should decide where to give. What it does mean is that anyone claiming 80G is running four different deductions under one section number, and the difference between them is worth checking before assuming a donation receipt translates to a specific rupee amount off the tax bill.
Check which of the four categories the recipient falls into before assuming a receipt converts to a specific figure off the bill. The tax treatment should not decide where to give - it should just not come as a surprise after the cheque has been written.
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