Every rupee of salary tax you pay is decided by one choice made before any investment, any deduction, any planning: which regime. Since AY 2024-25 the new regime is the default — you have to actively opt out — and for most salaried people it now wins. But "most" is not "all", and the losers lose by real money.
The two deals on the table
The new regime trades deductions for lower rates. For FY 2026-27 the slabs run: nil to ₹4 lakh, then 5% to ₹8 lakh, 10% to ₹12 lakh, 15% to ₹16 lakh, 20% to ₹20 lakh, 25% to ₹24 lakh, and 30% above. A salaried taxpayer gets a ₹75,000 standard deduction, and the §87A rebate wipes out tax entirely up to ₹12 lakh of taxable income (rebate capped at ₹60,000). Almost everything else — 80C, 80D, HRA, home-loan interest on a self-occupied house — is gone.
The old regime keeps the deductions and the old rates: nil to ₹2.5 lakh, 5% to ₹5 lakh, 20% to ₹10 lakh, 30% above, with a ₹50,000 standard deduction and a rebate only up to ₹5 lakh. It is a high-rate schedule you buy down with paperwork: ₹1.5 lakh under 80C, health premiums under 80D, HRA against rent, up to ₹2 lakh of home-loan interest under 24(b).
Health and education cess adds 4% on top of either regime's tax.
Where the break-even sits
The old regime only wins when your deductions are large enough to overcome its higher rates. As a rule the case needs a home loan and a full 80C and substantial HRA stacked together — a single ₹1.5 lakh of ELSS is nowhere near enough at most incomes. Run your own numbers in the old vs new regime calculator, which finds the deduction level at which the two regimes tie for your income; the income tax calculator shows the full slab arithmetic either way.
Two consequences follow for investors:
- ELSS only makes sense if you can claim 80C — on the new regime it is an equity fund with a three-year lock-in and nothing in return. The full argument is in ELSS and 80C.
- The rebate does not touch capital gains. Equity LTCG and STCG are taxed at their own special rates, and §87A cannot be set against them — worse, the gains still count toward the ₹12 lakh ceiling, so a large gain can cost you the rebate on your salary too. The salary + capital gains calculator models exactly this trap, and how mutual funds are taxed covers the rates themselves.
Choosing in practice
The choice is annual for salaried taxpayers — you can switch each year when you file — so this is not a lifetime commitment. Tell payroll early, though: TDS runs on your declared regime all year, and a mismatch only settles at filing.
⚠️ Slabs, the rebate and the deduction menu are rewritten by the annual Budget — these figures are FY 2026-27. Verify before relying on them, and take a filing position from a professional; WealthTicker is not a SEBI-registered investment adviser and nothing here is tax advice.
Key takeaway
The new regime is the default and, past the ₹12 lakh rebate line, usually the winner unless you stack a home loan, full 80C and HRA together. Decide the regime first — it determines whether ELSS, 80D and HRA planning are worth anything at all — and remember the rebate never applies to capital gains, which are taxed on top at their own rates.
More in Module 11 — Money beyond funds: salary, tax, loans and property
Decoding your CTC: why in-hand is so much less
Cost to company is what employing you costs, not what you are paid. The four layers inside a CTC, where EPF and gratuity go, and what basic salary decides.
Advance tax and TDS: how India collects before you file
TDS is a running prepayment, not the final bill; advance tax fills the gap in four dated instalments. The 15/45/75/100 calendar and the presumptive shortcut.
ESOPs, RSUs and ESPPs: taxed twice, at two different prices
Slab tax on the discount when shares become yours, capital gains from that day's FMV when you sell. Why tax can fall due on paper value, and the basis error.
Freelancing full-time: the 50% deal most professionals miss
Presumptive taxation lets a qualifying professional declare half of gross receipts as profit — no books, no audit. How it works, and how it compares to salary.
How an EMI actually works (and the flat-rate trick)
Interest on the outstanding balance first, principal with the rest — so early years repay very little. Why tenure sets total interest, and the flat-rate trap.
A surplus and a loan: prepay, refinance or invest?
Prepayment is a guaranteed, tax-free return equal to your loan rate — cut the tenure, not the EMI. When a balance transfer or investing the surplus beats it.
Rent vs buy: the honest math
Terminal net worth on two fully-specified paths, with the renter investing every rupee the buyer sinks. The two assumptions and the tax change that decide it.
The small savings family: PPF, SSY, NSC, KVP, SCSS and kin
One sovereign family, priced quarterly. Which schemes compound, which pay income, which are tax-exempt — and why after-tax yield, not the poster rate, matters.
Insurance is not an investment: term plans and the LIC question
Bundled policies do both jobs badly. Sizing a term cover from needs, not folklore, and judging an endowment you own on forward numbers, not on premiums paid.
What trading actually costs: beyond zero brokerage
STT, exchange charges, GST, stamp duty and DP fees stack on every trade and no broker can waive them. The break-even move, and what leverage really multiplies.
Running a small business by the numbers
Break-even and margin of safety, margin versus markup, the cash conversion cycle, DSCR and GST as an input-credit chain — five checks that catch trouble early.
Section 80C: the whole ₹1.5 lakh menu, not just ELSS
A shared ceiling, not a product — and EPF, home-loan principal and tuition fees may already fill it. Count the headroom before you buy anything to fill it with.
Section 80D: two buckets, and the cash rule that voids most claims
₹25,000 for your family and another ₹25,000 for your parents, each rising to ₹50,000 at 60 — with the check-up allowance inside those limits.
HRA exemption: the least of three numbers, and which one binds
Actual HRA, rent minus 10% of basic, or 50/40% of basic — all keyed to basic salary rather than CTC, and all available only under the old regime.
Property capital gains: what actually changed when indexation went
Bought before 23 July 2024, a resident pays the lower of 12.5% flat and 20% indexed — but that relief caps the tax payable, not the gain itself.
Home loan eligibility: what a bank will lend is not what you can afford
FOIR caps total EMIs against income and subtracts existing loans in full; LTV caps the loan against the property. Neither asks what you can afford.
Education loans and Section 80E: the deduction with no ceiling
Uncapped on interest, but only for eight years from the year repayment starts — so the window, not the amount, is the constraint that should set your tenure.
From the blog
Income tax calculator FY 2026-27: every line explained
16 Oct 2026
How the income tax calculator turns ₹15 lakh of taxable income into ₹1,09,200 of tax under the new regime: slabs, §87A rebate, marginal relief, surcharge, cess.
CTC to in-hand salary: ₹6 lakh to ₹50 lakh, worked out
10 Oct 2026
A ₹20 lakh CTC pays about ₹1.28 lakh a month in hand under the new regime. PF, gratuity and tax for eleven CTCs from ₹6 lakh to ₹50 lakh, FY 2026-27.
Home loan balance transfer: when switching pays after fees
10 Oct 2026
On ₹40 lakh with 15 years left, a 1-point cheaper rate saves ₹2,379 a month and repays ₹38,600 of fees in 17 months. A 0.25-point cut takes 65 months.