India Income Tax Guide – Everything You Need to Know for FY 2025-26
A complete, plain-English guide to income tax in India. Understand how tax is calculated, which slabs apply to you, how to save tax legally, what TDS means, when to pay advance tax, and how to file your ITR – all explained by CA experts.
Complete Income Tax Guide – FY 2025-26
- What is Income Tax & Who Must Pay?
- Income Tax Slabs & Rates – Old vs New Regime
- How is Your Income Tax Calculated? – Step by Step
- 5 Heads of Income Under the Income Tax Act
- All Tax-Saving Deductions – 80C, 80D, HRA, Home Loan
- TDS (Tax Deducted at Source) – Complete Guide
- Advance Tax – Who Pays, When & How
- Income Tax Return (ITR) – Overview & Types
- Important Income Tax Forms Explained
- Top Tax-Saving Strategies for FY 2025-26
- Frequently Asked Questions
What is Income Tax & Who Must Pay It?
Income tax is a direct tax levied by the Government of India on income earned by individuals, companies, and other entities during a financial year. It is governed by the Income Tax Act, 1961 and administered by the Central Board of Direct Taxes (CBDT).
Financial Year vs Assessment Year
The Financial Year (FY) is the year you earn income – runs April 1 to March 31. The Assessment Year (AY) is the following year when you file your ITR for that income. FY 2025-26 income is reported in AY 2026-27.
Who Must File Income Tax?
- Income above basic exemption limit
- All companies and firms (regardless of profit)
- Those with TDS deducted (to claim refund)
- Those with foreign assets or income
- High-value spenders (electricity > ₹1L, etc.)
Key Tax Authorities
- CBDT – Central Board of Direct Taxes (policy)
- IT Department – Assessment & enforcement
- CPC Bengaluru – Processes ITR and refunds
- ITAT – Income Tax Appellate Tribunal
- Portal – incometax.gov.in
Filing a NIL return (zero tax) establishes your financial compliance record, is required for visa applications, loan approvals, and protects against future scrutiny. It also enables you to carry forward capital losses to future years. Always file – it costs nothing and builds your financial credibility.
Income Tax Slabs & Rates FY 2025-26 – Old vs New Regime
India has a progressive tax system – higher income means higher rate on that portion. Budget 2026 enhanced the New Regime significantly. Here are both regimes side by side.
New Tax Regime
DEFAULT from FY 2023-24Old Tax Regime
Opt-in RequiredSurcharge & Health/Education Cess (applies on top of tax – both regimes)
The 87A rebate (NIL tax up to ₹12L) is an all-or-nothing cliff – not a gradual reduction. If your income is ₹12,00,001 (just ₹1 above ₹12L), you lose the entire rebate and become liable for the full tax of ₹80,000 on ₹12L income. There is no relief mechanism here – plan your income carefully near this threshold.
Marginal Relief is relevant when income crosses surcharge thresholds (₹50L, ₹1Cr, ₹2Cr, ₹5Cr). It ensures the extra tax from surcharge does not exceed the extra income earned above the threshold. Example: if income crosses ₹50L by ₹1, the 10% surcharge cannot result in more tax than the ₹1 excess. Computed automatically by the IT portal.
How is Your Income Tax Calculated? – Step by Step
Tax is not calculated on your full salary. It follows a specific sequence of reductions. Here is the full computation with a worked example.
Add all income from all 5 heads: Salary + House Property + Business/Profession + Capital Gains + Other Sources
Subtract 80C, 80D, 80CCD, 80G etc. (Old Regime only). These reduce your taxable income directly.
Result after deductions. This is the income on which slab rates are applied.
Calculate tax on taxable income using applicable slabs. Add surcharge if income > ₹50 lakh.
Add 4% cess on tax + surcharge. This gives Gross Tax Liability.
Deduct TDS already deducted + advance tax paid. Balance is Self-Assessment Tax to pay before ITR filing.
Worked Example – Salaried Person (Old Regime)
vs New Regime (₹12L income, no deductions): Tax = ₹80,000 + 4% cess = ₹83,200. Old Regime is better here due to large deductions.
5 Heads of Income Under the Income Tax Act
Every rupee you earn falls under one of these five heads. Each head has its own rules for deductions, computation, and set-off of losses.
Income from Salary
All earnings from employer-employee relationship. Includes basic pay, DA, HRA, LTA, bonus, perquisites, and pension.
- Standard deduction: ₹75,000 (New) / ₹50,000 (Old)
- HRA exemption under Sec 10(13A)
- Cannot set off salary loss against other income
Income from House Property
Rental income from owned property. Self-occupied property is deemed to have NIL Annual Value.
- 30% standard deduction on net annual value
- Home loan interest: ₹2L (self-occ.) / unlimited (let-out)
- Loss can be set off up to ₹2L against salary
Profits & Gains from Business
Income from business or profession. Includes freelancers, consultants, traders, and company income.
- Sec 44ADA: 50% of receipts for professionals
- Business losses can be carried forward 8 years
- Actual expenses deductible under ITR-3
Capital Gains
Profit from sale of capital assets – shares, mutual funds, property, gold, and crypto.
- LTCG on equity: 12.5% (above ₹1.25L)
- STCG on equity: 20%
- Crypto: flat 30% under Sec 115BBH
Income from Other Sources
Any income not covered by the first four heads – a catch-all category.
- FD interest, savings account interest, dividends
- Gifts above ₹50,000 (from non-relatives)
- Lottery, gambling, horse race winnings (30%)
All Tax-Saving Deductions – 80C, 80D, HRA, Home Loan & More
These deductions are only available under the Old Tax Regime (except standard deduction and 80CCD(2) which are available in both). Every ₹1 lakh of deduction saves ₹30,000 in tax for a 30% slab taxpayer.
| Section | What You Invest / Pay | Max Deduction | New Regime? |
|---|---|---|---|
| Std. Ded. | Standard Deduction (salaried & pensioners – automatic) | ₹75,000 (New) / ₹50,000 (Old) | ✅ Yes |
| 80C | EPF, PPF, ELSS, LIC, NSC, SCSS, 5-yr FD, home loan principal, tuition fees, Sukanya Samriddhi | ₹1,50,000 | ❌ No |
| 80CCD(1B) | Additional NPS contribution (self) – over and above 80C | ₹50,000 | ❌ No |
| 80CCD(2) | Employer’s NPS contribution (shown in Form 16) | 14% of Basic (Govt) / 10% (Others) | ✅ Yes |
| 80D | Health insurance premium – self/family + parents (senior citizen: ₹50,000) | ₹25,000 + ₹50,000 = ₹75,000 | ❌ No |
| Sec 24(b) | Home loan interest deduction (Sec 24b – House Property head) | ₹2,00,000 (self-occ.) / No limit (let-out) | ❌ No |
| 80E | Interest on education loan for higher studies (self or children) | No limit (for 8 years) | ❌ No |
| 80G | Donations to approved charities, PM funds, political parties | 50% or 100% of donation | ❌ No |
| 80TTA | Interest on savings bank account (individuals below 60 yrs) | ₹10,000 | ❌ No |
Std. Deduction (₹50K) + 80C (₹1.5L) + 80CCD(1B) NPS (₹50K) + 80D self+senior parents (₹75K) + Home Loan Interest Sec 24 (₹2L) = up to ₹5.25 lakh in total deductions. At 30% slab, this saves approximately ₹1.57 lakh in tax annually.
TDS – Tax Deducted at Source – Complete Guide
TDS is the most common way income tax reaches the government. Understanding TDS helps you plan your tax correctly and avoid over- or under-payment.
Step 1 – You Earn
You earn salary, FD interest, professional fee, or rent. The payer is legally required to deduct a percentage as tax before paying you.
Step 2 – TDS Deposited
The payer (employer, bank, client) deposits TDS with the government on your behalf and issues Form 16/16A as proof. Appears in Form 26AS.
Step 3 – Claim Credit
File your ITR claiming all TDS as credit against your actual tax liability. If TDS > actual tax, you get a refund with 6% interest under Sec 244A.
| Section | Nature of Payment | Threshold Limit | TDS Rate |
|---|---|---|---|
| 192 | Salary | Basic exemption limit of employee | Normal slab rates |
| 192A | Premature withdrawal from EPF | ₹50,000 | 10% (with PAN) | 20% (without PAN) |
| 193 | Interest on securities (debentures, 7.75%/8% Savings Bonds, other securities) | ₹10,000 | 10% |
| 194 | Dividend | ₹10,000 | 10% |
| 194A | Interest other than on securities – banks / post office / co-op society: (i) Senior Citizens (ii) Others | Non-bank payers (iii) | (i) ₹1,00,000 (ii) ₹50,000 (iii) ₹10,000 | 10% |
| 194B | Lottery / card games / crossword puzzles winnings | ₹10,000 per transaction | 30% |
| 194BA | Income from online games | No limit | 30% |
| 194C | Payment to contractor / sub-contractor | ₹30,000 per transaction | ₹1,00,000 aggregate in FY | 1% (Individual/HUF) | 2% (Others) |
| 194D | Insurance commission | ₹20,000 | 2% |
| 194G | Commission on sale of lottery tickets | ₹20,000 | 2% |
| 194H | Commission or brokerage | ₹20,000 | 2% |
| 194-I(a) | Rent – plant and machinery | ₹50,000 per month | 2% |
| 194-I(b) | Rent – land / building / furniture / fittings | ₹50,000 per month | 10% |
| 194-IA | Transfer of immovable property (other than agricultural land) | ₹50 lakhs | 1% |
| 194-IB | Rent by Individual / HUF not covered under Sec 194-I | ₹50,000 per month | 2% |
| 194J(a) | Fee for technical services / royalty for films / call centre fees | ₹50,000 | 2% |
| 194J(b) | Fee for professional services / director remuneration / non-compete fees | ₹50,000 | 10% |
| 194K | Income from units of a mutual fund (dividend) | ₹10,000 | 10% |
| 194M | Payments by Individual/HUF not liable under 194C / 194H / 194J (contractor, brokerage, professional fees) | ₹50 lakhs | 2% |
| 194N | Cash withdrawals (ITR filers) | Co-op society: ₹3 crore | Others: ₹1 crore | 2% |
| 194O | E-commerce operator – payments for sale of goods / services on digital platform | ₹5 lakhs | 0.1% |
| 194Q | Purchase of goods (by buyer having turnover > ₹10 crore) | ₹50 lakhs | 0.1% |
| 194R | Perquisite or benefit provided to a business / profession | ₹20,000 | 10% |
| 194S | Transfer of Virtual Digital Assets (Crypto / VDA) – Specified persons | Others | ₹50,000 | ₹10,000 | 1% |
| 194T | Partner’s remuneration from firm | ₹20,000 | 10% |
If your PAN is not linked to Aadhaar, it becomes inoperative and TDS is deducted at 20% (double the normal rate) on all payments under Section 206AA. PAN-Aadhaar linking is free on the income tax portal. Do it immediately if pending to avoid excess TDS deductions.
Advance Tax – Pay Tax Before March 15 to Avoid Interest
Advance tax is tax paid during the year itself as you earn – not at the end. If your total tax liability exceeds ₹10,000, you must pay advance tax in instalments to avoid interest under Sections 234B and 234C.
Advance Tax Schedule – FY 2025-26
✅ Who is Exempt from Advance Tax?
- Salaried employees where employer deducts full TDS from salary
- Senior citizens (60+) with no business income
- Those whose total tax liability is ₹10,000 or less
❌ Penalty for Non-Payment – Sections 234B & 234C
- Sec 234C: 1% per month interest for shortfall at each instalment date
- Sec 234B: 1% per month if less than 90% paid by March 31
- Interest is calculated from due date to date of actual payment
Income Tax Return (ITR) – Overview, Forms & Due Dates
ITR is the annual statement you file declaring your income, deductions, and tax paid. Choosing the right form is critical – wrong form = defective return.
Salaried, income up to ₹50L, 1 property, interest income
Capital gains, income >₹50L, foreign income, NRIs, 2+ properties
Business income, F&O trading, professionals with actual books
Freelancers under Sec 44ADA/44AD, receipts up to ₹75L
Firms, LLPs, AOPs, BOIs (not companies)
All companies (except Sec 11 trusts)
Key ITR Due Dates – AY 2026-27
Important Income Tax Forms Explained
These are the forms you will encounter most frequently in your income tax journey. Knowing what each one is prevents confusion and delays.
TDS Certificate – Salary
Issued by employer. Part A: TDS deposited quarterly. Part B: Salary breakup, allowances, perquisites, deductions. Most important document for salaried ITR filing. Must be issued by June 15 every year.
TDS Certificate – Non-Salary
Issued by banks, clients, or any deductor other than employer. Covers TDS on FD interest, professional fees, rent, dividends. Download from TRACES portal if not received. Cross-check with Form 26AS.
Tax Credit Statement
Comprehensive tax statement from IT Department. Shows all TDS deducted, advance tax paid, self-assessment tax paid, and refunds received. The single most important document to verify before filing ITR. Available on incometax.gov.in.
Annual Information Statement
Expanded version of Form 26AS. Shows savings account interest, dividends, securities transactions, MF redemptions, foreign remittances, rent received, and more. Available on IT portal from FY 2021-22. Always verify AIS before filing to avoid mismatch notices.
Income Tax Payment
Used to pay: Advance Tax (during the year), Self-Assessment Tax (before filing ITR), and Regular Assessment Tax (after demand notice). Payment via net banking at incometax.gov.in. Keep BSR code and challan serial number for ITR filing.
Employee Investment Declaration
Declaration submitted to employer at the start of the financial year declaring your planned investments (80C, HRA, home loan). Employer uses this to calculate TDS on salary. Submit actual proofs by year-end. Final TDS is adjusted based on actual proofs.
Top Tax-Saving Strategies for FY 2025-26
Legal tax planning is not just about 80C. Here are the most effective strategies used by smart taxpayers to minimise their tax burden while building wealth.
Strategy 1: Max Out 80C + NPS Combo
Invest ₹1.5 lakh in 80C (PPF or ELSS for best returns) + ₹50,000 in NPS Tier-I under 80CCD(1B). Total deduction: ₹2 lakh. At 30% slab this saves ₹62,400 in tax annually.
Strategy 2: Family Health Insurance 80D
Take a family floater policy for yourself + spouse + children (₹25,000) AND a separate policy for senior citizen parents (₹50,000). Total 80D deduction: ₹75,000. Saves ₹23,400 in tax at 30% slab.
Strategy 3: Home Loan – Double Tax Benefit
Home loan principal (80C up to ₹1.5L) + interest deduction (Sec 24b up to ₹2L on self-occupied). If property is let out, interest deduction is unlimited. Combine with HRA if you live in a rented house in another city.
Strategy 4: Invest in Spouse’s / Children’s Name
If your spouse is in a lower tax slab, invest FDs or debt MFs in their name. Income from investments made from your funds in spouse’s name is clubbed back to you – but investments by the spouse from their own income are not clubbed. Children above 18 are taxed independently.
Strategy 5: ELSS Tax Harvesting
Sell equity mutual fund units that are in profit after 1 year (LTCG) up to ₹1.25 lakh tax-free every year (the annual LTCG exemption limit). Immediately reinvest to reset the cost base. This “tax harvesting” prevents accumulation of a large taxable LTCG in any one year.
Strategy 6: Employer NPS Contribution 80CCD(2)
Ask your employer to restructure CTC by adding NPS contribution as employer’s contribution (80CCD(2)). This deduction is available even in the New Tax Regime and is over and above the ₹1.5L 80C limit. For private sector employees, up to 10% of basic salary is exempt.
Choose the Old Regime if your total deductions (80C + 80D + HRA + Home Loan interest) exceed approximately ₹3.75 lakh. Below that threshold, the New Regime typically saves more tax. Use our free calculator to compare exactly for your income. Salaried employees can switch regime every year at the time of ITR filing.
FAQs – Income Tax Guide FY 2025-26
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