India Income Tax Calculator
Compare old and new tax regime estimates for FY 2025-26 / AY 2026-27 with standard deduction, deductions, Section 87A rebate, surcharge, marginal relief, cess, and TDS/refund impact.
Last Updated: May 2026
India tax regime comparison
Compare old regime deductions against the new regime rebate
Model FY 2025-26 / AY 2026-27 slab tax, Section 87A rebate, surcharge, marginal relief, cess, and TDS/refund impact in one side-by-side view.
Rule Snapshot: May 2026
FY 2025-26 / AY 2026-27. New regime standard deduction is Rs. 75,000 for salary/pension cases, Section 87A rebate can reach Rs. 60,000, and health and education cess is 4%.
Income and Deduction Inputs
Use ordinary income before deductions. Special-rate gains are not modeled.
Age changes old-regime slabs. New-regime slabs are not age-based.
This affects old-regime age-slab treatment for non-residents.
Controls old/new standard deduction defaults.
Examples: 80C, HRA exemption, 80D, housing interest, eligible old-regime deductions.
Examples: eligible employer NPS or other deductions allowed in both comparisons.
Used only to estimate balance due or refund after liability.
India tax estimate only
This calculator is for educational planning and ordinary individual income-tax comparison. It does not replace the Income Tax Department filing utility, professional advice, AIS/TIS/Form 26AS reconciliation, special-rate income calculations, business return schedules, or final ITR validation.
Reviewed For Methodology, Labels, And Sources
Every CalculatorWallah calculator is published with visible update labeling, linked source references, and review of formula clarity on trust-sensitive topics. Use results as planning support, then verify institution-, policy-, or jurisdiction-specific rules where they apply.
Reviewed by Iliyas Khan, Chief Operating Officer. Page updated May 2026. Tax, sales tax, insurance, and health calculators are reviewed when rules, rates, eligibility assumptions, healthcare standards, or source references change. Topic ownership: Tax calculators, Sales tax calculators, Insurance calculators, Health calculators.
Tax credentialed review: Named internal reviewer: Iliyas Khan, Chief Operating Officer. External credentialed professional review is still required before this page is treated as professional advice.
Internal tax and sales-tax methodology reviewer. Review scope: calculator assumptions, labels, source context, workflow clarity, and compliance-sensitive disclaimers.
Relevant review context: CalculatorWallah tax and sales-tax calculator workflow owner; Source-first review of IRS, state revenue, rate, and filing-sensitive references; Compliance-sensitive labels, assumptions, and user-facing disclaimer review.
Required professional credentials: CPA, Enrolled Agent, licensed tax professional. Scope: tax formulas, jurisdiction assumptions, withholding language, filing-sensitive examples, and compliance caveats.
This page is educational planning support. A named CPA, EA, or licensed tax professional should review the page before it is positioned as tax advice or used for filing decisions.
Source expectation: Review should cite current IRS, state revenue department, payroll-tax, or official tax authority sources where applicable.
How to Use This Calculator
Start with annual gross ordinary income, then choose age, residency, and whether the income is salary or pension income. Add old-regime deductions such as 80C, HRA, 80D, and housing-interest items separately from deductions that remain available in the new regime.
The calculator shows both regimes even if you expect to file under one of them. That makes the deduction break-even point visible and helps avoid choosing the new regime only because the headline slab rates look lower.
Step 1: Enter annual gross income
Use ordinary income before standard deduction, 80C, HRA, 80D, housing-interest, and similar deduction inputs.
Step 2: Set age and residency
Age changes resident old-regime slab thresholds, while non-resident old-regime estimates use the standard individual slab.
Step 3: Choose salary or pension status
This controls whether the calculator applies the old-regime Rs. 50,000 standard deduction or new-regime Rs. 75,000 standard deduction.
Step 4: Enter deductions by regime
Old-regime deductions are counted only in the old regime; new-regime allowed deductions are counted in both comparisons.
Step 5: Review tax, TDS, and recommendation
Compare taxable income, slab tax, rebate, surcharge, cess, total tax, balance due, and refund side by side.
How the India Old vs New Regime Calculator Works
The calculator first builds taxable income for each regime. Old-regime taxable income subtracts the old standard deduction when applicable, old-regime deductions, and deductions allowed in both regimes. New-regime taxable income subtracts the new standard deduction when applicable and the deductions still allowed in the new regime.
| Input or rule | What goes there | How it affects comparison |
|---|---|---|
| Old-regime deductions and exemptions | 80C, HRA exemption, 80D, home-loan interest, eligible old-regime deductions | Counted only in old-regime taxable income. |
| New-regime allowed deductions | Eligible deductions still allowed in the new regime, such as certain employer NPS contributions | Counted in both old and new comparisons. |
| Standard deduction | Rs. 50,000 old regime; Rs. 75,000 new regime | Applied only when salary or pension income is selected. |
| TDS / advance tax paid | Tax already deducted or paid during the year | Used after liability to estimate refund or balance due. |
Each taxable income is then run through the applicable slab table, Section 87A rebate, surcharge bands with marginal relief, and 4% health and education cess. TDS or advance tax paid is applied only after the liability is calculated.
India Income Tax Slabs, Rebates, Deductions, and Regime Choice
New Regime Slabs for FY 2025-26 / AY 2026-27
The new regime is the default regime for many individual taxpayers, but the lower slab rates do not automatically mean lower tax. The calculator still compares against the old regime because HRA and deduction-heavy cases can move the result.
| Taxable income slab | Rate | How it is used |
|---|---|---|
| Up to Rs. 4,00,000 | 0% | Nil slab under the new regime. |
| Rs. 4,00,001 to Rs. 8,00,000 | 5% | First taxable slice above Rs. 4 lakh. |
| Rs. 8,00,001 to Rs. 12,00,000 | 10% | Resident rebate can offset tax up to the limit. |
| Rs. 12,00,001 to Rs. 16,00,000 | 15% | The calculator applies rebate marginal relief near Rs. 12 lakh. |
| Rs. 16,00,001 to Rs. 20,00,000 | 20% | Middle slab under the default new regime. |
| Rs. 20,00,001 to Rs. 24,00,000 | 25% | High-income slab before 30%. |
| Above Rs. 24,00,000 | 30% | Top ordinary-income slab before surcharge and cess. |
Old Regime Age-Based Slabs
The old regime keeps resident age-based slab thresholds and allows many deductions and exemptions. Non-resident estimates use the standard individual old-regime slab in this calculator, so the residency input matters before the comparison is read.
| Age category | Old-regime slab structure |
|---|---|
| Below 60 years | Rs. 2.5L nil, 5% to Rs. 5L, 20% to Rs. 10L, 30% above Rs. 10L |
| 60 to 79 years | Rs. 3L nil, 5% to Rs. 5L, 20% to Rs. 10L, 30% above Rs. 10L |
| 80 years or above | Rs. 5L nil, 20% to Rs. 10L, 30% above Rs. 10L |
When the Old Regime Can Still Win
The old regime usually needs meaningful deductions to beat the new regime. Common reasons include rent-heavy HRA cases, full 80C usage, medical insurance deductions, home-loan interest, and other deductions that are restricted under the new regime. Use the India HRA Calculator first when HRA is a large part of the old-regime case.
Important Limits
| Limit | What to check |
|---|---|
| Special-rate income | Capital gains, lottery income, crypto, and other separately taxed income are not modeled. |
| Business and presumptive tax details | The calculator compares ordinary taxable income; final ITR schedules can change results. |
| Filing utility checks | AIS/TIS, Form 16, Form 26AS, deductions, exemptions, and final return utility rules still matter. |
| State/local taxes | India income tax is central income tax; this tool does not calculate municipal, GST, or professional tax. |
Keep the research moving with India HRA Calculator, India In-Hand Salary Calculator, Net Salary Calculator, and Salary Calculator.
Frequently Asked Questions
Related Calculators
India HRA Calculator
Calculate HRA exemption before entering the old-regime deduction amount here.
Use India HRA CalculatorIndia In-Hand Salary Calculator
Convert CTC to monthly take-home salary after PF, HRA, professional tax, and regime choice.
Use India In-Hand Salary CalculatorNet Salary Calculator
Estimate take-home salary after tax and payroll deduction inputs.
Use Net Salary CalculatorSalary Calculator
Convert monthly and annual salary before using the tax regime comparison.
Use Salary CalculatorRelated Guides
Form 1040 Deadline 2026
Use this for the April 15 Form 1040 filing and payment deadline, October 15 extension date, late-filing cleanup, and 1040-specific checklist.
Read guide
Form 4868 Deadline 2026
Use this for individual tax extension timing, the April 15 Form 4868 request deadline, October 15 extended filing date, payment estimates, online extension methods, and proof of filing.
Read guide
Form 7004 Extension Deadline 2026
Use this for business extension due dates, March 16 and April 15 Form 7004 deadlines, September 15 and October 15 extended filing dates, e-file rules, and no-extension-to-pay cleanup.
Read guide
Form 2553 Deadline 2026
Use this for S corporation election timing, the March 16 calendar-year deadline, 2 months and 15 days rule, shareholder consent, LLC S elections, late-election relief, and Form 1120-S follow-through.
Read guideSources & References
- 1.Income Tax Department - Tax regime comparison for individuals(Accessed May 2026)
- 2.Income Tax Department - Section 87A rebate(Accessed May 2026)
- 3.Income Tax Department - Non-resident individual regime comparison(Accessed May 2026)