What is Rebate 87A?
Section 87A is a tax rebate — not a deduction. It directly reduces your tax liability to zero if your taxable income falls within the threshold.
Rebate: ₹60,000. If your taxable income is up to ₹12,00,000, you pay zero income tax. The ₹60,000 rebate covers the full slab tax (0 + 20K + 40K = 60K at ₹12L).
Rebate: ₹12,500. Threshold is ₹5L — much weaker. Only covers 10K slab tax + 2,500 cess equivalent.
At ₹12L taxable income, your slab tax is ₹60,000 (0% on first 4L + 5% on next 4L = 20K + 10% on next 4L = 40K). The rebate of ₹60,000 wipes it out completely. Both regimes apply 4% health & education cess on top of the tax — but if tax is zero, cess is also zero.