Old Tax Regime vs New Tax Regime — Which Saves You More?
Every February my colleagues argue about tax regime. Here's how I actually compare old vs new — with real salary numbers.
Salary slip came in March and Meera messaged the team group: "Why is my tax higher this year?" Half the chat said switch to new regime, half said never leave old. Same salary, opposite advice. Sound familiar?
Tax regime isn't a personality test — it's maths. Let's do the maths together for FY 2024-25 style slabs (always verify after Budget).
Two regimes, one salary
Old regime: Higher slab rates but you can claim deductions — 80C (PPF, ELSS, etc.), 80D (health insurance), HRA, home loan interest (with limits), NPS extra, etc.
New regime: Lower rates on paper, fewer deductions. Simpler filing for many. Default for most employees unless you opt out.
Who wins on low deductions?
Take ₹10 lakh gross, minimal investments, renting without HRA benefit captured, no home loan.
Old regime: taxable after standard deduction, tax adds up with 20% slab bites.
New regime: lower slabs + rebate under 87A often make tax very small on moderate incomes.
On ₹7–10 lakh, new regime often wins when you're not claiming much.
Who wins with heavy 80C + HRA + home loan?
Take ₹18 lakh gross in Mumbai:
- ₹1.5 lakh 80C
- ₹25,000 80D
- ₹2.5 lakh HRA exemption (example)
- ₹2 lakh home loan interest (old regime, self-occupied rules)
Old regime taxable income drops hard. Tax can be ₹1–1.5 lakh less than new for same person.
I ran both on our income tax calculator — the gap is real when deductions are real, not imaginary.
The rebate twist
New regime has rebate u/s 87A so many incomes up to ₹7 lakh taxable pay zero tax after rebate (rules evolve — check current year).
Old regime has its own rebate limits. Don't compare slab tables alone — compare final tax after rebate and cess.
Step-by-step how I compare
- List gross salary + bonus
- Old regime: subtract standard deduction, then every real deduction you actually use (not wishful)
- Calculate tax + 4% cess
- New regime: usually just standard deduction
- Pick lower. If close, consider future years — will you buy a house and claim interest?
Common myths
"New is always better" — false for high earners with home loan + HRA + 80C maxed.
"Old is always better" — false for young folks with no investments yet.
"Employer chose for me" — you may still evaluate at filing; understand what's locked at TDS level.
What about NPS 80CCD(1B)?
Extra ₹50,000 deduction is mainly old regime game. If you're serious about NPS for retirement, old regime benefit can be huge on ₹20L+ incomes.
Practical tip before June
If you're old regime, actually invest 80C before March — don't realise in July you left money on table. If new regime, focus on take-home and simpler life; don't buy junk insurance just for tax.
So which should you pick?
Below ₹8–9 lakh with no home loan and minimal 80C: likely new.
₹12 lakh+ with HRA + home loan + family insurance: likely old.
In between: run the calculator with your real numbers. Ten minutes beats ten WhatsApp forwards.
And Meera? She was on old regime but stopped submitting HRA proofs. Switched to new, tax went down. Different story for everyone.
Sample comparison table (illustrative)
₹8 lakh gross: New regime often wins with minimal deductions.
₹12 lakh gross, ₹2 lakh real deductions: Old regime often pulls ahead.
₹25 lakh gross, home loan + HRA + 80C + NPS: Old regime frequently saves more — run exact numbers.
TDS vs actual tax — don't mix them up
Your employer deducts TDS based on regime declared and proofs submitted. Switching regime at filing might mean refund or extra payable. The calculator shows annual liability — compare with Form 16 when it arrives.
Standard deduction and pensioners
Salaried and pensioners get standard deduction in both regimes (as per current law). If you're senior citizen with interest income and no HRA, new regime simplicity might still appeal — calculate don't assume.
When to revisit each year
Bought a house? Had a kid and bought health insurance? Salary jumped a slab? Re-run old vs new every January before proof submission season. Ten minutes on our calculator beats guessing for another year.
FAQ
- Can I switch regime every year?
- Salaried individuals with business income have restrictions. Many employees can choose each year — confirm latest IT rules.
- Does new regime have standard deduction?
- Yes, standard deduction applies for salaried taxpayers in new regime too (amount as per current law).
- Is this calculator for filing ITR?
- It's for estimation. Actual filing may include other income, capital gains, surcharge.