A decision-first guide for salaried employees, business owners, and professionals — with real numbers, a clear breakeven framework, and the one deadline most people miss.
Every year, millions of Indian taxpayers make the same mistake: they let the default decide for them. The new tax regime has been the default since FY 2023-24 — which means if you did not explicitly choose the old regime when filing your ITR or declaring to your employer, you were automatically placed in the new one, whether or not it was better for you.
For FY 2026-27, the choice matters more than ever. Budget 2026 confirmed no changes to the tax slabs — the same structure that applied in FY 2025-26 continues. That means the numbers in this guide are the numbers you plan with. The ₹12 lakh zero-tax threshold under the new regime stays. The deductions under the old regime stay. The decision framework is the same — and August is exactly the right time to make it for the full year ahead, before advance tax planning begins.
This guide gives you the framework, the numbers, and the decision — by income level and income type — so you can plan FY 2026-27 with certainty rather than guesswork.
ADVISORY
The short answer — before the detail:
- Income up to ₹12 lakh: New regime. Zero tax. No comparison needed.
- Income ₹12–20 lakh with limited deductions (under ₹3–4 lakh): New regime almost certainly better.
- Income ₹12–20 lakh with high deductions (above ₹5–6 lakh): Old regime may save more. Run the numbers.
- Income above ₹20 lakh: Depends heavily on deduction profile. Old regime breakeven rises to ₹7–10 lakh in deductions.
- Business owners and freelancers: Once you choose the old regime as a business owner, you cannot switch back without restriction. Important caveat — read the business income section below.
Not sure? That is what the rest of this guide is for.
What Changed for FY 2026-27 — And What Stayed the Same
Budget 2026 (presented February 2026) made no changes to income tax slab rates under either regime. The structure introduced in Budget 2025 — including the ₹12 lakh zero-tax threshold — continues unchanged for FY 2026-27 (Tax Year 2026-27 under the new Income Tax Act, 2025).
What stayed the same:
- New regime remains the default — you must actively opt for the old regime
- Tax slabs, rates, and Section 87A rebate are unchanged under both regimes
- Standard deduction: ₹75,000 under new regime, ₹50,000 under old regime for salaried individuals
- Section 87A rebate: ₹60,000 (new regime, income up to ₹12 lakh) and ₹12,500 (old regime, income up to ₹5 lakh)
- Surcharge cap: 25% maximum under new regime vs up to 37% under old regime for very high incomes
What changed in Budget 2026 (relevant to tax planning):
- Revised return deadline extended to 31 March 2027 (was 31 December) — more time to correct ITR errors
- TDS/TCS now governed by Income Tax Act, 2025 for transactions from 1 April 2026 onwards
- ITR-3 and ITR-4 (non-audit) get extended deadline to 31 August — more time for business filers
KEY TAKEAWAY
For tax planning purposes, FY 2026-27 is a stable year. The same framework that applied in FY 2025-26 applies now. If you did the regime comparison last year, the numbers are the same — but your income or deduction profile may have changed. Redo the comparison if you got a salary hike, took a home loan, or changed your investment pattern.
Tax Slab Comparison: New Regime vs Old Regime FY 2026-27
New Tax Regime Slabs (Default)
Applies to all taxpayers regardless of age. Standard deduction of ₹75,000 for salaried individuals. No other deductions or exemptions except employer NPS contribution (Section 80CCD(2)) and a few specific allowances.
| Income slab | Tax rate |
| Up to ₹4,00,000 | Nil — zero tax |
| ₹4,00,001 – ₹8,00,000 | 5% |
| ₹8,00,001 – ₹12,00,000 | 10% |
| ₹12,00,001 – ₹16,00,000 | 15% |
| ₹16,00,001 – ₹20,00,000 | 20% |
| ₹20,00,001 – ₹24,00,000 | 25% |
| Above ₹24,00,000 | 30% |
CPC INSIGHT —
Section 87A Rebate (New Regime)
The slab table above shows tax being charged from ₹4,00,001 onward — but that is not what most people actually pay.
Rebate: up to ₹60,000 under Section 87A.
If your taxable income does not exceed ₹12,00,000, the rebate cancels out the tax calculated from the slabs entirely — your final tax payable is zero.
For salaried individuals, this means gross salary up to ₹12,75,000 (after the ₹75,000 standard deduction) results in zero tax payable.
In short: Tax is calculated first using the slabs, then the rebate wipes it out below the ₹12 lakh threshold. The slab rates in the 5–10% range are not what a taxpayer under ₹12 lakh actually pays.
Surcharge: Capped at 25% for income above ₹2 crore under the new regime.
Old Tax Regime Slabs (Optional — must be actively chosen)
Allows deductions under Section 80C, 80D, 24(b) (home loan interest), HRA, LTA, and 70+ other provisions. Standard deduction of ₹50,000 for salaried individuals. Different exemption limits by age.
| Taxable Income | Below 60 years | Senior Citizen (60–80 yrs) | Super Senior (80+ yrs) |
| Up to ₹2,50,000 | Nil | — | — |
| Up to ₹3,00,000 | — | Nil | — |
| Up to ₹5,00,000 | — | — | Nil |
| ₹2,50,001 – ₹5,00,000 | 5% | 5% | — |
| ₹5,00,001 – ₹10,00,000 | 20% | 20% | 20% |
| Above ₹10,00,000 | 30% | 30% | 30% |
CPC INSIGHT
Section 87A Rebate (Old Regime)
Rebate: Up to ₹12,500 under Section 87A.
If taxable income (after all deductions claimed) does not exceed ₹5,00,000, this rebate cancels out the tax calculated from the slabs — final tax payable is zero.
Bottom line, as confirmed for this guide: from AY 2026-27, there is zero tax up to an income of ₹12 lakh under the New Regime, and up to ₹5 lakh under the Old Regime — in both cases because the rebate, not the slab structure, is what brings the final bill to nil.
Surcharge: Up to 37% for income above ₹5 crore — highest surcharge unchanged.
IMPORTANT WARNING
Note on Section 87A and capital gains:
Section 87A rebate cannot be applied against special rate capital gains — specifically long-term capital gains from listed equity shares and equity mutual funds taxed under Section 112A. If you have significant equity capital gains that push your income above ₹12 lakh (new regime) or ₹5 lakh (old regime), the rebate may not eliminate your tax liability entirely. This is a nuance many taxpayers and even some financial advisors miss.
Side-by-Side Tax Comparison at Key Income Levels
This table shows actual tax outgo under each regime at common income points, assuming salaried income with standard deduction applied, and no additional deductions under the old regime. Use this as a starting baseline — your actual tax depends on your specific deduction profile.
| Gross Salary | Tax (New Regime) | Tax (Old Regime) | New Regime Saves |
| ₹8,00,000 | Nil | ₹65,000 | ₹65,000 |
| ₹10,00,000 | Nil | ₹1,06,600 | ₹1,06,600 |
| ₹12,75,000 | Nil | ₹1,87,200 | ₹1,87,200 |
| ₹15,00,000 | ₹97,500 | ₹2,57,400 | ₹1,59,900 |
| ₹20,00,000 | ₹1,92,400 | ₹4,13,400 | ₹2,21,000 |
| ₹24,00,000 | ₹2,92,500 | ₹5,38,200 | ₹2,45,700 |
| ₹30,00,000 | ₹4,75,800 | ₹7,25,400 | ₹2,49,600 |
Note: Tax amounts include 4% health and education cess. Surcharge not applied (income assumed below ₹50 lakh). Old regime figures assume no deductions — add your actual deductions to get the correct comparison.
- * Tax (New Regime) — after considering standard deduction of Rs.75000.00
- ** Tax (Old Regime) —after considering standard deduction of 50000.00 & with no other deductions claimed
QUICK TIP
The table above shows the new regime wins comfortably when no deductions are taken. But this is the baseline — not the decision. The decision depends on how much you can actually claim under the old regime. The next section shows you the breakeven calculation.
The Breakeven Framework: When Does the Old Regime Win?
The breakeven point is the level of total deductions at which the old regime becomes equal to or better than the new regime. If your actual deductions exceed this level, the old regime saves more. Below it, the new regime wins.
| Gross Salary | Approx. Breakeven Deduction | Old Regime Better If… |
| ₹12–15 lakh | ~₹3.5–4.5 lakh | You have 80C (₹1.5L) + 80D (₹50K) + HRA (₹1.5–2L) or home loan interest |
| ₹15–20 lakh | ~₹5–6 lakh | You max 80C + 80D + significant HRA or home loan interest above ₹2 lakh |
| ₹20–30 lakh | ~₹6–8 lakh | You max 80C + 80D + home loan interest ₹2L + NPS + 80G donations |
| Above ₹30 lakh | ~₹8–10 lakh | You have substantial home loan interest, full 80C, 80D, and NPS deductions together |
Key Deductions and Exemptions Under the Old Regime
The old tax regime allows taxpayers to claim certain exemptions and deductions based on their income, investments and eligible expenses. The key provisions relevant to the regime comparison include:
| Particulars | What Can Be Claimed |
| HRA Exemption | Eligible exemption based on actual rent paid, salary, and applicable city limits, subject to the prescribed calculation |
| Home Loan Interest – Self-Occupied House | Actual interest paid on borrowed capital, subject to a maximum deduction of ₹2,00,000 |
| Section 80C | Eligible payments such as insurance premiums, EPF, PPF, and other qualifying investments, subject to a maximum of ₹1,50,000 |
| Section 80D – Mediclaim | Actual eligible health insurance premium paid, subject to a maximum deduction of ₹25,000, or ₹50,000 in applicable senior-citizen cases |
| NPS – Section 80CCD(1B) | Eligible contribution to the National Pension Scheme, subject to a maximum deduction of ₹50,000 |
| Eligible Donations – Section 80G | 50% or 100% of eligible donations, depending on the nature of the donation and recipient |
| Political Party Donations – Section 80GGC | 100% of eligible contributions, subject to applicable conditions |
| Interest on Savings/Deposits | Eligible interest income deduction up to ₹10,000, or ₹50,000 for eligible senior citizens under the applicable provision |
The practical implication: If your total eligible deductions — including 80C, 80D, HRA, home-loan interest, NPS and other applicable deductions — fall below the breakeven threshold for your income level, the new regime may save more tax. If they exceed it, the old regime may be more beneficial. The right choice should therefore be based on your actual eligible deductions and complete income profile.
CPC INSIGHT
The breakeven table above uses approximate figures. The actual breakeven for your specific situation depends on the exact composition of your deductions — HRA is particularly powerful for residents of Metro cities like Delhi and Gurgaon, where rent levels are high. A professional tax review that models both regimes with your actual numbers typically identifies ₹20,000–₹80,000 in optimisable tax savings for income above ₹15 lakh.
→ Talk to CPC Services for a regime comparison review | Explore Direct Tax Advisory
What You Can — and Cannot — Claim Under Each Regime
This is where most people make their mistakes. They assume the old regime is just about 80C. In reality, the deduction landscape is broader — and some people are significantly underestimating how much they can legitimately claim.
| Deduction / Exemption | Old Regime | New Regime |
| Standard Deduction (Salaried) | ₹50,000 | ₹75,000 ✓ |
| Section 80C (LIC, PPF, ELSS, EPF, tuition fees) | Up to ₹1,50,000 | Not allowed ✗ |
| Section 80D (Health Insurance) | Up to ₹25,000 (₹50,000 for senior citizen parents) | Not allowed ✗ |
| HRA Exemption | Allowed (city-based calculation) | Not allowed ✗ |
| Home Loan Interest — Section 24(b) | Up to ₹2,00,000 (self-occupied) | Not allowed for self-occupied ✗ |
| Home Loan Interest — Let-out Property | Fully deductible (no cap) | Allowed for let-out property ✓ |
| NPS — Employee Contribution (80CCD(1B)) | Additional ₹50,000 over 80C limit | Not allowed ✗ |
| NPS — Employer Contribution (80CCD(2)) | Allowed (up to 10% of basic) | Allowed ✓ |
| LTA (Leave Travel Allowance) | Allowed (2 journeys in 4-year block) | Not allowed ✗ |
| Section 80G (Donations) | Allowed (50%–100% of donation) | Not allowed ✗ |
| Section 80TTA/TTB (Savings Interest) | ₹10,000 (₹50,000 for senior citizens) | Not allowed ✗ |
| Section 87A Rebate | ₹12,500 (income up to ₹5 lakh) | ₹60,000 (income up to ₹12 lakh) ✓ |
| Professional Tax | Allowed | Not allowed ✗ |
REMINDER
One deduction worth knowing: Employer NPS contribution under Section 80CCD(2). This deduction is available under both regimes — and many salaried employees do not claim it or are unaware their employer contributes to NPS on their behalf. Up to 10% of basic salary contributed by the employer to NPS is deductible under the new regime. For a salary with ₹6 lakh basic, that is potentially ₹60,000 in deductions available even without choosing the old regime.
Which Regime Is Right for You: Decision by Profile
Rather than a single universal answer, here is the framework by taxpayer profile. Apply the one that matches your situation.
💼 Salaried — Income up to ₹12.75 lakh
- Zero tax if gross salary is up to ₹12.75 lakh (₹12 lakh taxable after ₹75K standard deduction)
- Section 87A rebate of ₹60,000 eliminates the entire tax liability
- No deductions needed — the regime does the work
- Simple, zero compliance effort, no investment products required
🏠 Salaried — Income ₹15–25 lakh
- Run the breakeven calculation (see table above) with your actual deductions
- If you pay significant rent in a metro city (HRA exemption ₹2–4 lakh) + max 80C + health insurance: old regime likely wins
- If you own your home outright and have modest investments: new regime likely wins
- A home loan with interest above ₹1.5 lakh strongly favours the old regime at this income level
- Do not guess — model both regimes with your actual numbers before declaring to your employer
→ Talk to CPC Services for a Regime Comparison
📈 Salaried — Income Above ₹50 lakh
- Surcharge under new regime is capped at 25%; old regime can go up to 37% above ₹5 crore
- At very high income levels, the surcharge difference alone can outweigh deduction benefits
- Exception: if you have an active home loan with substantial interest, the deduction may still favour old regime
- This decision requires a precise calculation — the numbers at high income levels move significantly
- Consult a professional before defaulting — the surcharge difference can be lakhs
→ Explore Direct Tax Advisory at CPC
💻 Freelancers and Professionals
- No HRA (unless paying rent and claiming under old regime)
- No home loan deduction under new regime (except for let-out property)
- New regime wins if deductions below breakeven for your income level
- Can switch between regimes every year (unlike business income — see below)
- Advance tax planning matters: model the full year before the 15 September Q2 deadline
🏭 Business Owners and SME Directors
- If you have business income (proprietorship, partnership, LLP, company director with salary + business income), the regime choice is NOT flexible
- Business taxpayers who choose the old regime can switch to new regime — but once they switch to new regime, they can only return to old regime ONCE in their lifetime
- This lock-in makes the decision more consequential: it is not an annual decision, it is a structural one
- The new regime removes all business-related expense deductions (beyond legitimate business expenses under Section 37)
- Most SME owners and directors benefit from a formal review before committing to either regime
→ Talk to CPC Services about Business Tax Planning
The Deadline Most People Miss: When to Declare Your Regime Choice
Choosing the right regime is only half the decision. Communicating it at the right time is the other half — and missing this has real financial consequences.
For Salaried Employees
Your employer asks for a regime declaration at the start of the financial year — typically April or at the time of joining — to determine TDS deduction from salary. If you do not declare, your employer defaults to the new regime.
- The consequence of not declaring: If you are better off under the old regime but did not declare it to your employer, TDS is deducted at new regime rates throughout the year. You can correct this when filing your ITR — but you will have paid excess TDS all year and will only get the refund after ITR processing, which can take months.
- What to do now: If you have not declared your regime choice for FY 2026-27 yet, contact your HR or payroll department. Many employers accept a revised declaration during the year, particularly before October. After October, most payroll systems lock the declaration for the year.
For Business Owners and Freelancers
Your regime choice is declared when filing the ITR, not in advance. However, if you have business income and want to claim the old regime, you must file Form 10-IE (for opting out of the new regime) before or at the time of ITR filing.
- The advance tax angle: The 15 September 2026 deadline is the second instalment of advance tax (45% of estimated annual tax). If you do not know your regime for the year, you cannot accurately estimate your advance tax — which means either overpaying (and waiting for a refund) or underpaying (and paying 1% per month interest under Section 234B/234C). This is why August regime planning has a direct cash flow consequence.
IMPORTANT WARNING
If you file a belated ITR (after the original deadline), you cannot choose the old tax regime.
This is the most financially consequential consequence of late filing that most people don’t know about. A taxpayer with ₹20 lakh income, significant HRA, home loan interest, and 80C investments could pay ₹1.5–2 lakh more in tax simply by filing after the deadline — because the old regime option is no longer available for belated returns. File on time.
Two Real-World Comparisons
Two profiles — same income, different circumstances — to show how the decision plays out in practice.
Profile 1: Anil, 34, Software Professional, Delhi — ₹18 lakh gross salary
| Type | New Regime | Old Regime |
| Gross Salary | ₹18,00,000 | ₹18,00,000 |
| Standard Deduction | ₹75,000 | ₹50,000 |
| HRA Exemption | Not available | ₹2,40,000 (rent in Delhi) |
| Section 80C | Not available | ₹1,50,000 |
| Section 80D (Health Insurance) | Not available | ₹25,000 |
| Home Loan Interest | Not available | ₹0 (no home loan) |
| Taxable Income | ₹17,25,000 | ₹13,35,000 |
| Tax (Before Cess) | ₹1,45,000 | ₹2,13,000 |
| Tax (After 4% Cess) | ₹1,50,800 | ₹2,21,520 |
VERDICT
Old regime saves ₹70,720
Profile 2: Priya, 29, Marketing Manager, Faridabad — ₹18 lakh gross salary (owns home)
| Type | New Regime | Old Regime |
| Gross Salary | ₹18,00,000 | ₹18,00,000 |
| Standard Deduction | ₹75,000 | ₹50,000 |
| HRA Exemption | Not available | ₹0 (owns home, no HRA) |
| Section 80C | Not available | ₹1,50,000 |
| Section 80D | Not available | ₹25,000 |
| Home Loan Interest (Sec 24b) | Not available | ₹50,000 (small balance) |
| Taxable Income | ₹17,25,000 | ₹15,25,000 |
| Tax (Before Cess) | ₹1,45,000 | ₹2,70,000 |
| Tax (After 4% Cess) | ₹1,50,800 | ₹2,80,800 |
VERDICT
New regime saves ₹1,30,000
Same salary. Same city (both NCR). Anil rents and claims a sizeable HRA exemption, which narrows the gap — the old regime still saves him ₹70,720. Priya owns her home with only a small loan balance, so she has far less to claim under the old regime — and for her, the new regime wins decisively, by ₹1,30,000. The decision is not about income level alone. It is about your specific deduction profile: the more you can genuinely claim under the old regime, the smaller the new regime’s advantage becomes — but at this income level, the new regime’s lower rates and higher standard deduction give it a real head start that only a substantial deduction profile can overcome.
Related Reading
- → ITR Filing 2026: Step-by-Step Guide + Common Mistakes to Avoid
- → July 2026 GST & TDS Due Dates: Don’t Miss These Compliance Deadlines
- → 10 Signs Your Growing Business Needs a Virtual CFO Right Now
Choose the Regime That Actually Saves You Money.
CPC Services models both tax regimes for your exact income profile — salary, HRA, home loan, capital gains, business income — and identifies the option that minimises your tax bill for FY 2026-27.
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