For most salaried employees in major IT and finance hubs, the old tax regime just became meaningfully more competitive. This is not a marketing claim. It is simple arithmetic. Here is the exact calculation.
1. What Changed — The 3 Rule Updates That Matter
The Draft Income Tax Rules 2026, released by CBDT for public consultation in February 2026, make three categories of changes that are relevant to the Old Regime vs New Regime decision. All are proposed to take effect from April 1, 2026, under the new Income Tax Act 2025 framework.
None of these changes affect tax slab rates. Those remain unchanged for FY 2026-27. What changes is how much of your salary can be shielded from tax under the Old Regime. The ceiling on several allowances has been raised for the first time in decades.
Change 1: HRA City Expansion
The most significant update. The list of cities eligible for 50% of salary as HRA exemption has been expanded from 4 to 8 cities. Previously, only Delhi, Mumbai, Kolkata and Chennai qualified for the higher rate. Employees in all other cities were limited to 40% of salary.
| City | HRA Cap — Before April 2026 | HRA Cap — From April 2026 | Change |
|---|---|---|---|
| Delhi, Mumbai, Kolkata, Chennai | 50% of salary | 50% of salary | No change |
| Bengaluru | 40% of salary | 50% of salary | +10 percentage points |
| Hyderabad | 40% of salary | 50% of salary | +10 percentage points |
| Pune | 40% of salary | 50% of salary | +10 percentage points |
| Ahmedabad | 40% of salary | 50% of salary | +10 percentage points |
| All other cities | 40% of salary | 40% of salary | No change |
Important: "salary" for HRA purposes means Basic Pay + Dearness Allowance only. It excludes HRA itself, transport allowance, bonus and all other components. If your HR structure shows a ₹20 lakh CTC with ₹8 lakh as basic, the HRA cap is calculated on ₹8 lakh, not ₹20 lakh.
Change 2: Allowance Limits Reset After Decades
Several allowance exemption limits were frozen at 1990s-era values and had become practically useless. The Draft Rules 2026 reset them to current cost levels:
| Allowance | Old Limit | New Limit | Annual Impact (max) |
|---|---|---|---|
| Children's Education Allowance | ₹100/month/child | ₹3,000/month/child | +₹69,600/year (2 children) |
| Hostel Expenditure Allowance | ₹300/month/child | ₹9,000/month/child | +₹2,04,000/year (2 children) |
| Meal Voucher Exemption | ₹50/meal | ₹200/meal | +₹26,400/year (22 meals/month) |
| Transport Allowance (transport employees) | ₹10,000/month or 70% | ₹25,000/month or 70% | +₹1,80,000/year |
Change 3: Stricter Documentation Requirements
The rules give with one hand and tighten with the other. Alongside expanded exemptions, the Draft Rules 2026 introduce stricter verification requirements for HRA claims. Landlord PAN is now explicitly required when annual rent exceeds ₹1 lakh. Rental agreements must be written. Digital payment records are the preferred evidence. These are covered in detail in Section 5.
2. The New Break-Even Calculation
The central question in any regime comparison is whether your total deductions under the Old Regime exceed the break-even threshold — the point at which your tax liability under both regimes is equal. Below that threshold, the New Regime wins. Above it, the Old Regime wins.
The New Regime offers no deductions (except the ₹75,000 standard deduction for salaried employees). The Old Regime's advantage is entirely a function of how many legitimate exemptions you can claim.
Scenario: ₹20 Lakh Salary, Bengaluru, Two Children
Assumptions: CTC ₹20L, Basic ₹10L (50% of CTC), HRA component received ₹5L (50% of Basic), rent paid ₹55,000/month (₹6.6L/year), two children in school with hostel.
| Deduction Head | Old Regime — Before April 2026 | Old Regime — From April 2026 |
|---|---|---|
| Standard Deduction | ₹50,000 | ₹50,000 |
| HRA Exemption (Bengaluru) | Min(5L, 5.6L, 4L) = ₹4,00,000 | Min(5L, 5.6L, 5L) = ₹5,00,000 |
| Section 80C (Tax-Saver FD, PPF, ELSS, EPF) | ₹1,50,000 | ₹1,50,000 |
| Section 80D (self + parents) | ₹50,000 | ₹50,000 |
| Children's Edu + Hostel Allowance (2 children) | ₹9,600/year | ₹2,88,000/year |
| Total Deductions | ₹6,59,600 | ₹10,38,000 |
| Taxable Income | ₹13,40,400 | ₹9,62,000 |
| Tax (Old Regime slabs) | ₹2,14,620 + cess | ₹1,04,900 + cess |
| Tax (New Regime) | ₹1,85,000 + cess (taxable ₹19,25,000 after ₹75K standard deduction) | |
| Verdict | Old Regime loses by ₹29,620 | Old Regime wins by ₹80,100 |
The same employee in Bengaluru who was better off in the New Regime before April 2026 (Old Regime loses by ₹29,620) is now substantially better off in the Old Regime after the rule changes (Old Regime wins by ₹80,100). Add meal vouchers (₹200/meal) to the salary structure and the advantage widens further.
Enter your salary components and see the precise tax liability under both regimes for FY 2026-27.
Open Income Tax CalculatorScenario: ₹15 Lakh Salary, Pune, No Children
Assumptions: Basic ₹7.5L, HRA received ₹3.75L, rent ₹35,000/month (₹4.2L/year), Section 80C maxed, 80D ₹25,000.
HRA exemption (new rule, 50% city): Min(3.75L, 4.2L minus 0.75L = 3.45L, 50% of 7.5L = 3.75L) = ₹3,45,000. Total deductions: 50K + 3.45L + 1.5L + 25K = ₹5,70,000. Taxable income = ₹9,30,000. Old Regime tax = ₹12,500 (5% slab) + ₹86,000 (20% on ₹4.3L) = ₹98,500 + cess. New Regime tax on ₹15L (minus ₹75K standard deduction) = ₹93,750 + cess.
At ₹15L without children, the New Regime still wins narrowly by approximately ₹4,750. The Old Regime becomes competitive at this salary bracket only with a home loan (Section 24(b) up to ₹2 lakh) or two children in school.
Scenario: ₹25 Lakh Salary, Hyderabad, Home Loan + Children
Assumptions: Basic ₹12.5L, HRA ₹6.25L, rent ₹65,000/month, Section 24(b) home loan interest ₹2L, 80C ₹1.5L, 80D ₹50K, education + hostel allowance for 2 children.
HRA exemption (50% city): Min(6.25L, 7.8L minus 1.25L = 6.55L, 6.25L) = ₹6,25,000. Total deductions: 50K + 6.25L + 1.5L + 2L + 50K + 2.88L = ₹13,63,000. Taxable = ₹11,37,000. Old Regime tax = ₹12,500 (5%) + ₹1,00,000 (20%) + ₹41,100 (30% on ₹1,37,000) = ₹1,53,600 + cess. New Regime tax on ₹24,25,000 (₹25L minus ₹75K standard deduction) = ₹20K + ₹40K + ₹60K + ₹80K + ₹1,00,000 + ₹7,500 = ₹3,07,500 + cess.
At ₹25 lakh with this profile, the Old Regime saves approximately ₹1,53,900 per year in tax after the rule changes. This is a very large number — one that makes the additional compliance effort straightforward to justify.
3. Who Should Switch Back — The Exact Profile
Based on the break-even arithmetic, the Old Regime is likely to produce a better outcome for salaried employees who match most of the following profile:
4. Who Should Stay in the New Regime
The New Regime is not the wrong choice — it is the right choice for a specific type of employee. If you match this profile, do not switch:
Start with the fundamentals — slab rates, what deductions each regime allows, and how the default selection works.
Read the Full Regime Guide5. The Compliance Cost Nobody Mentions
The draft rules expand exemptions on one side and increase documentation scrutiny on the other. Before you decide to switch to the Old Regime, understand what you are signing up for in terms of paperwork. Failing documentation = denied exemption. Denied exemption = the Old Regime maths no longer works in your favour.
HRA Documentation (Stricter from April 2026)
- Rent receipts: Required for every month. Must show exact amount, period, property address and landlord signature. Printed or digital formats are acceptable.
- Landlord PAN: Mandatory if total annual rent exceeds ₹1 lakh (approximately ₹8,334/month). This threshold is not new — but enforcement is being strengthened under the Draft Rules 2026.
- Rental agreement: A registered lease deed or written tenancy agreement is expected. Verbal arrangements do not provide adequate documentation.
- Relationship disclosure: If you are paying rent to a family member, that relationship must be disclosed explicitly in the declaration form (new Form 124, replacing Form 12BB).
- Payment mode: Cash payments above ₹1 lakh annually are not allowed for HRA purposes. Use NEFT, UPI or cheque and keep bank statements.
Allowance Documentation
- Children's Education Allowance: School fee receipts clearly showing tuition fee amount and institution name for each child.
- Hostel Allowance: Fee receipts explicitly breaking out the hostel/boarding component separately from tuition. Many schools issue combined receipts — request a split receipt.
- Meal Vouchers: Must be issued through an approved employer system (Sodexo, Zeta, similar). Ad hoc reimbursements do not qualify. The salary structure must explicitly include this component.
6. How to Actually Switch Before April 1
The mechanics of switching are straightforward for salaried employees. The key is timing — getting it done before your employer locks in TDS calculations for the first quarter of FY 2026-27.
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1Run the numbers first Use the break-even analysis in Section 2 above, or use Hisabhkaro's Income Tax Calculator with your actual salary structure. Do not switch on sentiment — switch on arithmetic. The regime that saves you more tax is the right choice, regardless of which one sounds simpler.
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2Check your salary structure with HR The Old Regime exemptions only work if your salary is properly bifurcated — Basic, HRA, Education Allowance, Hostel Allowance and Meal Vouchers must appear as separate line items in your payslip. If your employer pays a consolidated amount with no breakup, you cannot claim most allowances even if you switch. Ask HR to restructure before April if needed.
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3Submit your investment declaration in April 2026 At the start of each financial year, your employer asks for a tax regime preference and an investment declaration. Under the new rules, this is submitted via Form 124 (replacing Form 12BB). Declare Old Regime explicitly. This determines your TDS deduction for the entire year. Missing this window does not prevent you from switching at ITR filing — but it means your TDS may be calculated on a different basis, creating a mismatch.
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4Gather documentation immediately Start collecting rent receipts, rental agreement, landlord PAN, fee receipts and investment proofs now. Retroactively collecting these documents at year-end is stressful and often incomplete. Set up a digital folder and save every document in real time through the year.
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5Reconsider annually — the New Regime is still the default Despite the expanded allowances, the New Tax Regime remains the default from FY 2026-27. You must actively opt for the Old Regime each year. If your circumstances change — you buy a home, your children complete school, your rent falls — run the numbers again the following April. Salaried employees can switch between regimes each year at ITR filing.
7. The Quick Decision Guide
If you have read this far, you have the full picture. Here is the distilled version for those who want a fast answer:
| Your Situation | Regime to Consider | Estimated Annual Saving |
|---|---|---|
| ₹20L+ salary, Bengaluru/Pune/Hyd/Ahm, paying ₹50K+ rent, 2 school children | Old Regime | ₹80,000 to ₹1,20,000 |
| ₹25L+ salary, metro city, home loan + HRA + 80C maxed | Old Regime | ₹1,50,000 to ₹2,00,000 |
| ₹15-20L salary, Bengaluru/Pune, paying rent, no children | Borderline | ±₹15,000 either way |
| ₹15L salary, own home, no major deductions | New Regime | New Regime wins by ₹30,000+ |
| Below ₹12L taxable income (new regime) | New Regime | New Regime wins — 87A rebate |
| Freelancer or business owner — no salary structure | New Regime usually | Evaluate case by case |
See Your Exact Tax Under Both Regimes
Plug in your salary breakup and get a precise comparison — including HRA, allowances and all deductions — for FY 2026-27.
Open Salary Breakup CalculatorFrequently Asked Questions
Yes. The Old Tax Regime remains available for salaried individuals after April 1, 2026. The New Tax Regime continues to be the default — meaning you must actively opt for the Old Regime while filing your ITR each year. Nothing is being discontinued. The Draft Income Tax Rules 2026 actually make the Old Regime more attractive by expanding HRA city coverage and increasing allowance limits.
Effective April 1, 2026, eight cities qualify for the 50% of salary HRA cap: the original four metros (Delhi, Mumbai, Kolkata, Chennai) and the four newly added cities — Bengaluru, Hyderabad, Pune and Ahmedabad. All other cities in India remain at 40% of salary as the HRA ceiling.
The saving depends on whether the salary-based cap (40% vs 50%) is the limiting factor in your specific HRA calculation. The formula always uses the lowest of three values. For someone with a ₹10 lakh basic salary paying ₹60,000/month rent in Bengaluru, the upgrade shifts the exemption from ₹4 lakh to ₹5 lakh — saving approximately ₹30,000 in tax at the 30% slab. If your rent paid minus 10% of salary is already the lowest value, the city upgrade has no additional impact on your specific calculation.
Rarely, unless you have a home loan with significant interest outgo. Without HRA, the Old Regime needs roughly ₹7 lakh or more in total deductions to beat the New Regime at a ₹20 lakh salary. The combination of 80C (₹1.5L) + Section 24(b) home loan interest (₹2L) + 80D (₹50K) = ₹4L — still short of break-even. For most employees without HRA or a substantial home loan, the New Regime is the better choice.
You need: (1) Rent receipts for each month showing the exact amount, property address and landlord signature. (2) A written rental agreement or lease deed. (3) Landlord's PAN card number — mandatory if annual rent exceeds ₹1 lakh (roughly ₹8,334/month). (4) Disclosure of your relationship with the landlord if any family connection exists. Digital payment records (bank statements, UPI history) are preferred evidence alongside receipts.
Yes. Form 16 (the TDS certificate on salary) will be renamed Form 130 under the Draft Income Tax Rules 2026 and restructured into three parts. Form 12BB (investment declaration) becomes Form 124. Form 26AS is renumbered to Form 168. These are administrative and structural changes — the same underlying information is collected. Expect payroll teams and CA offices to go through a short adjustment period in Q1 FY 2026-27.
Yes, and timing matters. Inform your employer via Form 124 (replacing Form 12BB) at the start of FY 2026-27 — ideally in April 2026 during the investment declaration process. This determines your monthly TDS deduction throughout the year. If you miss the employer window, you can still switch while filing your ITR directly — but your monthly TDS may have been calculated on New Regime rates, resulting in a demand or refund at filing time. Salaried employees (non-business income) can switch freely between regimes each year.