The new regime is now the default. Employees who do nothing fall into it. That is administratively simple — but it is not always the lower-tax outcome. Whether an employee should opt back into the old regime depends on three things: how much they earn, how much they actually invest in 80C-eligible products, and how much HRA exemption they can substantiate.
What the new regime gives you
The new regime is structured around lower headline slabs, a standard deduction available to salaried taxpayers, a meaningful rebate under section 87A for incomes up to the rebate ceiling, and very few permissible deductions. Crucially, you give up almost the entire Chapter VI-A toolkit — 80C, 80D, 80CCD(1B), HRA exemption under section 10(13A), and LTA — in exchange for those lower slabs.
A useful mental model: the new regime is the tax outcome you get when you assume the employee invests nothing and lives in company accommodation or owns their home. If they actually do invest and pay rent in a metro, the old regime can still come out ahead.
Where the breakeven sits
The breakeven income — the level at which an employee with average usage of old-regime deductions would pay the same tax under either system — sits roughly in the middle of the salaried band. Below it, the new regime almost always wins because the rebate sweeps tax to zero. Above it, the answer depends on how aggressively the employee uses HRA, 80C, NPS, health insurance, and home loan interest.
| Annual income (₹) | Default new-regime tax | Best-case old-regime tax (with HRA + 80C + 80D + NPS) |
|---|---|---|
| 7,00,000 | 0 (rebate) | Higher — old regime not worth opting into |
| 12,00,000 | ~ 60,000 | ~ 50,000–70,000 depending on rent + investments |
| 18,00,000 | ~ 1,80,000 | ~ 1,40,000–1,80,000 if HRA + 80C fully used |
| 25,00,000 | ~ 3,50,000 | ~ 3,00,000–3,50,000 if HRA + 80C + 80CCD(1B) fully used |
| 50,00,000 | ~ 11,00,000 | ~ 10,40,000–11,00,000 — small old-regime edge in metros |
The illustrative ranges above ignore surcharge and cess but capture the shape of the decision. The single biggest swing factor at higher incomes is HRA. An employee paying ₹50,000 a month in rent in a metro can shelter a meaningful slice of basic, which the new regime simply does not allow them to do.
Model both regimes for every employee with your consultant
FastLegal's dedicated consultant runs a side-by-side calculation for each employee during the investment declaration window, factoring in actual HRA proof, planned 80C utilisation and NPS contributions. We then push the recommended regime back into payroll so your TDS deduction matches the optimal regime from April. No employee has to do this maths alone.
How to advise employees
The clearest framing for an employee who asks is to walk them through four checks, in order:
- Is your income at or below the rebate ceiling? If yes, stay on the new regime. The rebate makes you tax-free either way; the old regime adds paperwork without any benefit.
- Do you pay rent in a metro and have a valid rent agreement plus your landlord's PAN? If yes, the old regime is a serious option — HRA alone can shift the maths.
- Do you fully utilise 80C (₹1.5L) and 80CCD(1B) NPS (₹50K), and have health insurance premium under 80D? Stack three or more of these and the old regime starts to look attractive at higher incomes.
- Do you have a home loan with interest above ₹2L? Self-occupied interest is deductible only under the old regime. For employees with a meaningful home loan, this often tilts the decision.
Operational tips for HR
- Capture each employee's chosen regime at the start of the financial year and lock it into payroll. Mid-year switches are not permitted for salaried employees — the regime can only change at the next ITR filing.
- When an employee joins mid-year, default them into the new regime in payroll. They can override in their declaration form, and you adjust TDS from the next payslip.
- Issue a one-page comparison for new hires at offer stage. It is the single most appreciated piece of HR communication you can send.
Frequently asked questions
Can an employee change regime mid-year?+
No. For salaried employees, the choice of regime is made at the start of the year and is binding for TDS purposes. They can effectively change at ITR-filing time, but their payslips and Form 16 will reflect the regime they declared to the employer.
Does the new regime allow any deductions at all?+
A small set is available — standard deduction, employer NPS contribution under 80CCD(2), and a few specific allowances. The headline chapter VI-A deductions, HRA and LTA are unavailable in the new regime.
What if an employee does not declare a regime?+
The new regime is the default. Payroll computes TDS on new-regime slabs and the employee can correct at ITR filing if they realise the old regime would have been better. They lose the cash-flow benefit of optimal TDS through the year.
Do consultants and contractors choose a regime?+
Yes. Individual professionals offering services on TDS section 194J or under presumptive taxation also make a regime choice when filing their ITR. For salaried employees specifically, the choice is made annually and binds the employer.
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