Budget 2024 Capital Gains Tax + New vs Old Tax Regime: Complete Tax-Action Guide for FY25
Hook
You just got your July salary slip. The tax deduction looks different. Your SIP redemption from last month will be taxed at a higher rate. And you have till March 31 to decide which tax regime saves you more money.
Three things changed at once. Let me walk you through each one — and give you a calculator to figure out your exact savings in two minutes.
Problem
Budget 2024 changed the rules on July 23. Three big shifts hit your wallet:
1. STCG on equity/MFs jumped from 15% to 20% — every short-term gain now costs more
2. LTCG on equity/MFs went from 10% to 12.5% — but the exemption rose from ₹1L to ₹1.25L
3. New tax regime became the default — with ₹75K standard deduction and ₹25K rebate (effectively tax-free up to ₹7.75L)
Most people don’t realize: the SIP you’ve been running for 5 years? It’s not taxed as one block. Each monthly instalment is a separate lot. Some are LTCG, some are STCG. The math changes completely post-Budget.
And the regime choice? It’s not “new is always better.” At ₹15L salary with a home loan and HRA, the old regime can save you over ₹1 lakh.
Explanation
What Changed in Budget 2024 (Effective July 23, 2024)
| Asset | STCG (Old) | STCG (New) | LTCG (Old) | LTCG (New) | Exemption |
|---|---|---|---|---|---|
| Listed equity shares | 15% | 20% | 10% | 12.5% | ₹1.25L |
| Equity MFs (≥65% equity) | 15% | 20% | 10% | 12.5% | ₹1.25L |
| Listed debt instruments | Slab | Slab | 20% with indexation | 12.5% no indexation | None |
| Property (bought before Jul 23) | Slab | Slab | 20% with indexation | Lower of: 12.5% no indexation OR 20% with indexation | None |
How SIP Taxation Actually Works (FIFO Method)
You invest ₹10,000/month for 24 months. At month 25, you redeem ₹2 lakh.
Each monthly instalment = separate lot with its own purchase date and NAV.
| SIP Month | Units Bought | Holding at Redemption | Type | Tax Rate |
|---|---|---|---|---|
| Month 1-12 | 12 lots | >12 months | LTCG | 12.5% above ₹1.25L |
| Month 13-24 | 12 lots | <12 months | STCG | 20% |
Your single redemption creates a mixed bag of LTCG and STCG. The first 12 months’ units become LTCG and enjoy the ₹1.25L exemption. The recent 12 months get hit at 20%.
The ₹1.25L LTCG Exemption Shield
This is your free pass. Every financial year, the first ₹1.25 lakh of LTCG on equity/equity MFs is tax-free.
This is called gain harvesting. It’s legal. No wash sale rule in India — you can sell and rebuy the same fund the same day.
Tax-Loss Harvesting Post-Budget 2024
| Loss Type | Offsets | Tax Saved per ₹1L (Old) | Tax Saved per ₹1L (New) | Gain |
|---|---|---|---|---|
| STCL (short-term) | STCG + LTCG | ₹15,000 | ₹20,000 | +33% |
| LTCL (long-term) | LTCG only | ₹10,000 | ₹12,500 | +25% |
Old vs New Regime: The Calculator
New Regime Slabs (FY24-25 / AY25-26)
| Income Slab | Tax Rate |
|---|---|
| 0 – ₹3,00,000 | Nil |
| ₹3,00,001 – ₹7,00,000 | 5% |
| ₹7,00,001 – ₹10,00,000 | 10% |
| ₹10,00,001 – ₹12,00,000 | 15% |
| ₹12,00,001 – ₹15,00,000 | 20% |
| Above ₹15,00,000 | 30% |
Old Regime Slabs (Unchanged)
| Income Slab | Tax Rate |
|---|---|
| 0 – ₹2,50,000 | Nil |
| ₹2,50,001 – ₹5,00,000 | 5% |
| ₹5,00,001 – ₹10,00,000 | 20% |
| Above ₹10,00,000 | 30% |
Scenario Comparison
₹10 Lakh Salary (No Major Deductions)
| Component | Old Regime | New Regime |
|---|---|---|
| Gross Salary | ₹10,00,000 | ₹10,00,000 |
| Standard Deduction | ₹50,000 | ₹75,000 |
| Taxable Income | ₹9,50,000 | ₹9,25,000 |
| Tax (before rebate) | ₹52,500 | ₹42,500 |
| Rebate u/s 87A | ₹0 | ₹0 |
| Final Tax | ₹52,500 | ₹42,500 |
| Winner | — | New saves ₹10,000 |
₹15 Lakh Salary (Max Deductions: 80C ₹1.5L + NPS ₹50K + 80D ₹25K + HRA ₹2L + Home Loan ₹2L)
| Component | Old Regime | New Regime |
|---|---|---|
| Gross Salary | ₹15,00,000 | ₹15,00,000 |
| Std Deduction | ₹50,000 | ₹75,000 |
| 80C | ₹1,50,000 | — |
| 80CCD(1B) NPS | ₹50,000 | — |
| 80D | ₹25,000 | — |
| HRA Exemption | ₹2,00,000 | — |
| Home Loan 24(b) | ₹2,00,000 | — |
| Total Deductions | ₹6,75,000 | ₹75,000 |
| Taxable Income | ₹8,25,000 | ₹14,25,000 |
| Tax + Cess | ~₹78,000 | ~₹1,81,350 |
| Winner | Old saves ~₹1.03L | — |
₹20 Lakh Salary (80C ₹1.5L + 80D ₹25K + HRA ₹3L + HL 24b ₹2L)
| Component | Old Regime | New Regime |
|---|---|---|
| Gross Salary | ₹20,00,000 | ₹20,00,000 |
| Total Deductions | ₹7,25,000 | ₹75,000 |
| Taxable Income | ₹12,75,000 | ₹19,25,000 |
| Tax + Cess | ~₹2,07,500 | ~₹3,01,950 |
| Winner | Old saves ~₹94K | — |
₹50 Lakh Salary (Max deductions + high HRA + HL)
| Component | Old Regime | New Regime |
|---|---|---|
| Gross Salary | ₹50,00,000 | ₹50,00,000 |
| Total Deductions | ~₹8-9L | ₹75,000 |
| Taxable Income | ~₹41-42L | ₹49,25,000 |
| Tax + Cess | ~₹11.5-12L | ~₹12.8L |
| Surcharge | 10% (>₹50L TI) | 25% capped (>₹5Cr TI) |
| Winner | Old marginally better | — |
The 3-Question Decision Framework
| Income | Deductions Available | Recommended |
|---|---|---|
| ≤ ₹7.75L | Any | New |
| ₹7.75L – ₹12L | < ₹3.75L | New |
| ₹7.75L – ₹12L | > ₹3.75L | Old |
| ₹12L – ₹15L | < ₹4.5L | New |
| ₹12L – ₹15L | > ₹4.5L | Old |
| ₹15L – ₹20L | < ₹5.5L | New |
| ₹15L – ₹20L | > ₹5.5L | Old |
| >₹50L | Any | Calculate (surcharge cap differs) |
Examples
Example 1: Rahul, ₹12L Salary, Renting, No Home Loan
Example 2: Priya, ₹18L Salary, Home Loan ₹2.5L Interest, HRA ₹2L
Example 3: Amit, ₹8L Salary, Just Started Career
Action Steps: Do This Before March 31
For Capital Gains
1. Check your portfolio — identify funds/stocks with unrealised LTCG >₹1.25L
2. Harvest gains — sell enough to book exactly ₹1.25L LTCG this FY. Rebuy immediately. Cost basis resets.
3. Harvest losses — if you have STCL, use it to offset STCG (saves 20% per rupee). LTCL offsets LTCG (saves 12.5%).
4. Review SIP redemptions — if you redeemed post-July 23, your tax is higher. Factor this in advance tax.
For Regime Choice
1. Download the calculator sheet — plug in your salary, 80C, 80D, HRA, home loan interest
2. Compare both regimes — the sheet auto-calculates tax for old vs new
3. Submit Form 10-IEA (if choosing old regime with business income) or just select in ITR (salaried can switch annually)
4. Tell your HR — so TDS is deducted correctly from next month
Quick Checklist
☐ Calculated LTCG/STCG for FY25 so far
☐ Booked ₹1.25L gain harvesting if eligible
☐ Harvested losses to offset gains
☐ Ran old vs new regime calculator with actual numbers
☐ Decided regime and informed HR/payroll
☐ Paid advance tax if capital gains pushed you over threshold
Downloadable Calculator Prompt
Copy this into Google Sheets / Excel:
Sheet 1: Regime Calculator
– A2: Gross Salary
– B2: 80C Deduction
– C2: 80D Deduction
– D2: HRA Exemption
– E2: Home Loan Interest (24b)
– F2: NPS 80CCD(1B)
– G2: Standard Deduction Old (50000)
– H2: Standard Deduction New (75000)
– I2: =A2-G2-B2-C2-D2-E2-F2 (Old Taxable)
– J2: =A2-H2 (New Taxable)
– K2: Old Tax (nested IF for slabs)
– L2: New Tax (nested IF for slabs) – MIN(25000, New Tax) if J2≤700000
– M2: =K2-L2 (Positive = New wins)
Sheet 2: SIP Tax Calculator
– Columns: SIP Date, Amount, Units, NAV, Holding Period, Type (STCG/LTCG), Gain, Tax
– Use FIFO: sort by date, cumulative units vs redeemed units
Key Takeaway
The Budget 2024 changes aren’t just headline numbers — they change how your SIP redemptions are taxed (FIFO creates mixed STCG/LTCG), make loss harvesting 33% more valuable, and flip the regime decision for anyone with a home loan or high HRA.
Your future self will thank you when the tax notice doesn’t arrive.
Risks & Limitations
Sources
1. PIB Press Release PRID 2036604 — Budget 2024 capital gains changes
2. CBDT FAQs on Capital Gains Tax Provisions (Aug 12, 2024)
3. Income Tax Dept: New vs Old Regime FAQs (PDF)
4. Finance (No.2) Bill 2024 — Capital Gains Amendments
5. Moneycontrol: How Your SIPs Would Be Taxed After Budget 2024
6. Economic Times: SIP Taxation Under New Structure
7. ClearTax, Groww, TheCalcu, PlanMyReturns — regime calculators
8. TaxHarvestLab, ArthGyaan, DealPlexus — loss harvesting guides
9. Zerodha Z-Connect: What Changes for Investors After Budget 2024
