Income-tax Calculator · FY 2026-27 · AY 2027-28

A calculator we built for our own work.

Compares old vs new regime, handles capital gains, surcharge and rebate u/s 156, and projects interest under s. 234A / 234B / 234C. Nothing is sent anywhere — every calculation runs in your browser.

1.Basic Details

RegimeAgeResident

2.Salaries

Gross salaryExempt allowances (HRA/LTA) — old onlyProfessional tax — old onlyEmployer NPS contribution

Standard deduction of ₹75,000 (new) / ₹50,000 (old) is applied automatically.

3.House Property

Self-occupied?Annual value (rent − municipal tax)Home-loan interest

Under new regime, HP loss cannot be set off against other heads (s. 202(2)(b)(ii)). Self-occupied interest capped at ₹2 L.

4.Business / Profession

PGBP income

5.Capital Gains

STCG on listed eq / eq MF (STT) @ 20% — s. 196Other STCG (slab rate)LTCG on listed eq / eq MF with STT — s. 198 (₹1.25 L free)Other LTCG @ 12.5% — s. 197LTCG on land/bldg acquired pre-23-Jul-2024Same gain with indexation (for 20% option)VDA / crypto gains @ 30%

6.Other Sources

Interest (FD etc.)DividendFamily pension (gross)Lottery / online gamingOther income

7.Chapter VIII DeductionsOld regime only (except SB int.)

80C (PPF / ELSS / LIC / PF) — cap ₹1.5 L80CCD(1B) extra NPS — cap ₹50 k80D health insurance80E education-loan interest80EEA affordable-housing interest80G donations80TTA / 80TTB SB interest (both regimes)80U self-disabilityOther VI-A deductions

8.Agricultural Income & Prepaid Taxes

Agricultural income (partial integration)TDSAdvance taxSelf-assessment tax

Notes

What this calculator does.

Implements the Income-tax Act, 2025 (Act No. 30 of 2025) effective 1 April 2026, as amended by the Finance Act, 2026.

Applies standard deduction, Chapter VIII deductions, basic exemption absorption against special-rate income for residents, rebate u/s 156, surcharge tiers with marginal relief, health & education cess and partial integration of agricultural income.

Interest is computed as simple interest at 1% per month under the standard 234A / 234B / 234C formulas, with the safe harbour of 12% (Jun) and 36% (Sep) built in.

Results are for computation assistance only and do not constitute tax, legal or financial advice. Please consult Swaptions Advisory LLP before relying on any figure for filing, planning or representation.