Indian Income Tax Explained Simply (FY 2025-26)

Understand tax slabs, ITR filing, deductions, old vs new regime, and tax saving in one complete guide.

Get a clear plan for savings, debt, and goals.

Compare both regimes with real deductions.

Disclaimer: This page is for educational purposes only and should not be considered professional tax advice. Always verify current-year rules/limits and your eligibility on the official portal / CBDT notifications.

What is income tax? (and why it exists)

Income tax (direct tax)

A tax on income earned by a person or entity. For salaried people, it is usually deducted as TDS by the employer and later reconciled in the ITR.

Indirect tax

Taxes included in prices of goods/services (example: GST). You don’t “file” GST as a salaried employee, but you pay it as a consumer.

Who needs to pay?

If your taxable income exceeds the tax-free thresholds (after deductions/rebates), you pay. Even when tax is zero, filing may still be beneficial or required.

PAN matters

PAN is your core tax identifier. It links your TDS credits, AIS/26AS, filings, and many bank/investment transactions.

Financial Year (FY) vs Assessment Year (AY) — the simplest way to remember

Beginners get stuck here. This clears it in 20 seconds.

FY 2025-26

Income earned between 1 Apr 2025 → 31 Mar 2026.

AY 2026-27

You typically file the return for FY 2025-26 in 2026 — that filing year is AY 2026-27.

Timeline

Earn income

Apr 2025 → Mar 2026

TDS/advance tax happens

During FY while income is earned

File ITR

In AY 2026-27

Who should file ITR? (even if tax is zero)

Common reasons to file

Refund due (TDS deducted more than final tax), income proof for loans/visa, record continuity, and to avoid issues when AIS/26AS has entries.

Mandatory filing cases (examples)

Certain high-value transactions, foreign assets/income, and other notified conditions can make filing mandatory. Always verify the current-year rules.

Types (heads) of income in India

Income head	What it means	Example
Salary	Employment income	Monthly salary, bonus
House Property	Income from property	Rental income
Business & Profession	Self-employment income	Freelancing, shop income
Capital Gains	Profit on selling assets	Stocks, mutual funds, property
Other Sources	Miscellaneous income	FD interest, savings interest

Which ITR should I file? (ITR-1 to ITR-7 explained with examples)

Use this as a map — the final form must match the Income Tax Department’s eligibility rules for that year.

Think in two steps: (1) list every type of income you earned (salary, rent, business, capital gains, foreign interest, etc.), then (2) pick the lowest-number ITR that legally covers all of them. If you are unsure, use the official e-filing portal’s ITR selection / help or consult a qualified professional.

ITR	Who it is for (plain English)	Typical “signals” you belong here	Usually NOT the right pick if…
ITR-1 (Sahaj)	Resident individuals with simple salary + small other income patterns (strict eligibility).	Form 16 only, bank interest, one eligible house property scenario, no capital gains schedules.	You sold stocks/MF/property, you have foreign income, you need multiple house-property reporting, or income types exceed ITR-1 limits.
ITR-2	Individuals/HUFs without business/profession income but with capital gains, more than one house property, or foreign income/asset reporting (as applicable).	Equity/MF sales, RSU vesting gains, rental from multiple properties, foreign dividends/interest, overseas brokerage statements.	You have business/profession books (P&L) beyond presumptive limits.
ITR-3	Individuals/HUFs having income under “Profits and gains of business or profession”.	Freelancer with full books, partner in a firm, consultant billing clients with detailed accounting.	You only have salary + interest and no business income (ITR-1/2 may be enough).
ITR-4 (Sugam)	Presumptive taxation schemes for eligible small businesses/professions (turnover/limits apply).	Eligible shop owner / freelancer choosing presumptive scheme under law.	You are outside presumptive limits or need detailed P&L reporting (often ITR-3).
ITR-5	Partnership firms, LLPs, AOP/BOI, artificial juridical persons (not a typical salaried individual form).	You are filing for an LLP/firm entity.	You are filing as an individual salaried employee.
ITR-6	Companies claiming exemption under specific sections (not individual).	Company tax return workflows.	Individual filing.
ITR-7	Persons including companies required to furnish returns under specific trusts/political/refund sections (rare for salaried beginners).	Trust/political party/special cases per law.	Normal salaried employee scenarios.

Quick “story” examples (beginner-friendly)

Example A — Only salary + bank interest

Rahul has Form 16, ₹8,000 savings-account interest, no MF sales, no rent income. This is the classic “simple” profile that often maps to ITR-1 if all eligibility conditions are met.

Example B — US stocks / global MF / RSU sales

Neha is salaried and also sold US stocks (capital gains) and received RSU-related perquisite/gain entries. Even if salary is simple, capital gains reporting usually pushes you away from a pure ITR-1 path towards ITR-2 (and you must reconcile broker statements with AIS). If she also runs a freelance practice with books, consider ITR-3.

Example C — Crypto / frequent trading

If you treat activity as investing (capital gains) vs business (trading) can change the return shape. Many retail investors need detailed schedules; do not assume ITR-1. When in doubt, use official guidance / a CA.

Example D — Freelancer with invoices + expenses

If you are not eligible for presumptive schemes (or exceed limits), you may need ITR-3 with proper books. If you qualify for presumptive taxation, ITR-4 may apply.

Official help: always cross-check on the Income Tax e-Filing portal before submitting.

Next: regime math and deduction caps → Old vs new tax regime — complete guide.

Old tax regime vs new tax regime (what changes?)

Old regime (deduction-friendly)

Allows a wider set of deductions/exemptions (80C/80D/HRA-style, home loan interest within limits, etc.) but requires correct documentation.

New regime (simpler)

Fewer deductions/exemptions, but different slab structure. Often simpler for people with limited deductions.

Old vs New regime — quick decision helper (FY 2025-26)

This is an educational guide. For the exact tax number, use the calculator and verify with current Finance Act rules.

Open tax regime calculator →

Pick a salary example

Note: For many salaried employees, the decision depends on how much you legitimately claim in 80C, 80D, HRA, NPS, and home loan interest.

Old regime is often better if…

You have rent + HRA and claim it properly
You max 80C + 80D
You claim home loan interest under 24(b)

New regime is often better if…

Deductions are low
You do not claim HRA / home loan benefits
You want fewer moving parts

Want the full, detailed guide? Read “Old vs new tax regime” →

Latest tax slabs FY 2025-26 — what else matters besides slabs?

87A rebate

A rebate (not a deduction) that can reduce tax sharply when taxable income is within the notified limits. The exact thresholds/rules can change.

Surcharge + cess

Surcharge applies at higher incomes; cess is a percentage applied on computed tax (after surcharge where applicable) as per rules.

Want exact slabs and a full comparison table? Use the tax regime calculator and cross-check with current-year notifications.

Most important tax-saving sections (with caps used in Finkoin’s FY 2025-26 calculator)

These limits match the deduction “caps” in our tax regime tool so what you read here matches what the calculator enforces. Always confirm final eligibility on the official law/notifications.

Regime note: deductions like 80C/80D/HRA/24(b) mostly matter under the old regime in typical salaried planning. The new regime in Finkoin currently models a higher standard deduction and generally fewer Chapter VI-A levers — compare both in the tax regime calculator.

Section / item	What it does	Cap in Finkoin FY2025-26 model	Beginner checklist
Standard deduction (salary)	Flat deduction from salary/pension in computations (auto benefit in payslip thinking).	Old regime: ₹50,000 New regime: ₹75,000	Don’t mentally double-count — good tools include this automatically.
HRA exemption	Rent-related exemption when employer pays HRA (least-of tests).	No single fixed rupee cap in the formula — depends on rent, salary structure, metro/non-metro.	Keep rent agreement + receipts + bank transfers aligned; landlord PAN rules may apply for higher rents.
80GG (no HRA rent)	If you pay rent but don’t get HRA, an old-regime style rent relief can exist subject to conditions.	Finkoin uses an illustrative model capped at ₹60,000 (verify eligibility).	Not a substitute for real HRA documentation rules — confirm on official utility.
80C (combined basket)	EPF/VPF (eligible portion), PPF, ELSS, life insurance premium, principal repayment (eligible part), tuition fees, etc.	₹1,50,000 combined cap (extra items don’t create extra 80C room beyond the basket).	If EPF is large, you may “fill” 80C without ELSS — check your payslip + 80C proofs.
80CCD(1B) (NPS)	Additional NPS contribution deduction beyond the 80C basket (where eligible).	₹50,000	Great if you want disciplined retirement investing + tax planning (subject to product rules).
80D (medical insurance)	Premium for self/family and parents (separate buckets in law).	Self/family bucket (as modelled in Finkoin): ₹25,000 if your age is below 60, else ₹50,000. Parents’ premium bucket (as modelled): ₹25,000 if parents are not marked senior, else ₹50,000.	Parents’ senior status can materially change the cap — keep policy PDFs.
24(b) (home loan interest)	Interest on home loan for self-occupied/let-out rules (as applicable).	Finkoin caps self-occupied interest modelling at ₹2,00,000 (illustrative; let-out has different mechanics).	Use lender interest certificate; don’t confuse principal (80C eligible part) vs interest (24(b)).
80EEA (affordable housing interest)	Additional interest deduction for eligible affordable housing loans (conditions apply).	₹1,50,000 cap in tool (only if eligible in your facts)	Eligibility is strict — verify sanction date/stamp duty rules for your year.
80E (education loan interest)	Interest on loan taken for higher education (eligible lender/conditions).	No fixed “₹ cap” in the calculator line — you enter eligible interest; law governs the allowed amount.	Keep lender interest statements; note the “8 years” style rule in law (verify current wording).
80G (donations)	Donations to eligible funds/institutions (percentages vary 50%/100% etc.).	You enter eligible donation amounts; the tool doesn’t auto-split categories.	Donation receipt + 80G certificate details must match.
80TTA (savings interest)	Savings account interest (resident individuals, conditions apply).	₹10,000 for non-seniors in tool (seniors usually use 80TTB instead)	FD/RD interest is generally not 80TTA — it’s taxable “other sources”.
80TTB (senior interest)	Senior citizens: interest on specified deposits (conditions apply).	₹50,000	Seniors should check whether 80TTA vs 80TTB applies to their interest types.
80DD / 80DDB / 80U	Disability / critical illness / self-disability deductions (highly fact-specific).	80DD: ₹1,25,000 cap in tool 80DDB: ₹40,000 (non-senior) / ₹1,00,000 (senior band in tool) 80U: ₹1,25,000 cap in tool	Keep medical certificates/disability certificates as per law.
Professional tax	State professional tax paid (where applicable).	₹5,000 cap in tool	Usually visible on payslip; don’t claim more than actually paid.
80RRB (royalty)	Royalty income for authors/inventors (eligibility applies).	Illustrative cap ₹3,00,000 in tool	Rare for typical salaried employees — ignore unless it truly applies.

LTA (Leave Travel Allowance)

LTA is an allowance/exemption story (not a fixed “80C-style” line item in the calculator table). If your employer pays LTA, exemption depends on actual eligible travel bills and employer policy — keep tickets/invoices as per rules.

“Super deductions” mistake to avoid

You cannot “stack” two laws to claim the same expense twice. Example: home loan interest belongs in the house-property logic (24(b)/related) — don’t confuse with unrelated sections.

TDS explained (salary) — Form 16, 26AS, AIS/TIS

TDS on salary

Employer estimates annual tax and deducts monthly. Filing reconciles estimated TDS with final tax.

Form 16

Proof from employer showing salary and TDS. Use it to populate/verify salary figures.

AIS / 26AS matching

Your return should broadly match AIS/26AS. Many notices come from mismatches, not from “wrong tax saving”.

How to file ITR online (step-by-step)

Login on the official Income Tax e-Filing portal using PAN.
Select the correct ITR form (ITR-1/2/3/4 as applicable).
Verify prefilled salary/TDS details against Form 16 and AIS/26AS.
Add missing income (FD interest, capital gains, etc.) if applicable.
Claim deductions/exemptions you are eligible for with correct details.
Pay any self-assessment tax (if needed), then submit.
Complete e-verification within the permitted time.

Common mistake: forgetting to report bank/FD interest or failing to e-verify.

Common mistakes (and how to avoid them)

Wrong ITR selection

Always check eligibility before choosing ITR-1/2/3/4. If in doubt, consult a qualified professional.

AIS mismatch

Cross-check AIS/26AS. Add missing interest/capital gains if applicable.

Claiming unsupported deductions

Only claim what you’re eligible for, with evidence (rent receipts, loan certificates, etc.).

Not e-verifying

Submission is not complete until e-verified within the allowed time.

FAQs

Clear answers using official Income Tax terminology. Educational guidance only.

What is the difference between FY and AY?⌄

FY (Financial Year) is when you earn income (1 Apr to 31 Mar). AY (Assessment Year) is when you file and the Income Tax Department assesses that FY’s income.

FY 2025-26 means what dates?⌄

Income earned from 1 April 2025 to 31 March 2026.

AY 2026-27 means what?⌄

The year in which you typically file the return for FY 2025-26 (and the department assesses it).

Which ITR should a salaried employee usually file?⌄

If you are a resident with only salary + bank interest + one eligible house property (and no restricted incomes), ITR-1 is common. If you have capital gains (Indian or foreign stocks/MF), foreign income/assets reporting, or multiple house-property complexity, you usually move to ITR-2. Always confirm on the Income Tax Department’s ITR selection guidance for the year.

I invest in US stocks (via an Indian broker or LRS). Which ITR?⌄

US equity sales typically create capital gains schedules (and may involve foreign income/asset reporting depending on your case). That is usually not an ITR-1-only situation—most salaried people end up on ITR-2 (subject to eligibility). If you also have business income, ITR-3 may apply. Verify with AIS/broker statements and the official ITR wizard.

Is ITR filing mandatory if my tax is zero?⌄

It can be mandatory in specific cases (high-value transactions, foreign assets, etc.). Even when not mandatory, filing helps with refunds, visa/income proof, and continuity.

How much income is tax-free in India?⌄

It depends on the regime and the rebate rules (e.g., Section 87A) for that year. Always compute taxable income first, then apply rebate/cess.

What is Form 16?⌄

A certificate issued by your employer showing salary paid and TDS deducted. It is a key document for salaried filing.

What is 26AS and AIS?⌄

Form 26AS shows tax credits like TDS/TCS. AIS (Annual Information Statement) and TIS show broader transaction/income information used for matching.

What is TDS in salary?⌄

Tax Deducted at Source. Employers deduct estimated tax monthly and deposit it with the government.

Can I switch between old and new regime every year?⌄

Many salaried individuals can choose each year at filing time. Rules can differ for business income cases; check the current-year conditions.

What is Section 80C?⌄

A deduction section (up to the notified limit) covering common investments/expenses like EPF, PPF, ELSS, life insurance premium, etc., subject to rules.

What is Section 80D?⌄

Deduction for eligible health insurance premium and certain medical expenses, subject to limits and conditions.

What is standard deduction?⌄

A flat deduction from salary/pension as per rules for that year/regime.

What is cess?⌄

Health & Education cess is applied as a percentage on computed tax (after surcharge where applicable) as per current rules.

What is surcharge?⌄

Additional tax on high total income above certain thresholds; it affects the effective tax rate.

What are 234A/234B/234C interest sections?⌄

These are interest provisions for late filing (234A), shortfall of advance tax (234B), and deferment of advance tax installments (234C), generally computed per month when applicable.

Which documents do I need to file ITR?⌄

PAN, Aadhaar, Form 16, AIS/26AS, bank interest certificates, capital gains statements (if any), and proofs for deductions/exemptions you claim.

What is e-verification?⌄

The final verification step after filing (OTP, netbanking, etc.). Without verification within the allowed time, the return is treated as not filed.

Are capital gains taxed like salary slabs?⌄

Often no. Many capital gains have separate rates and rules. Always compute capital gains separately as required.

Is FD interest taxable?⌄

Yes, FD/RD interest is generally taxable as ‘Income from Other Sources’ and may also have TDS.

Do I need to report savings account interest?⌄

Yes. It is income, though you may be eligible for deduction under sections like 80TTA/80TTB (subject to conditions).

What is ITR-4 (Sugam)?⌄

An ITR form commonly used for eligible presumptive income cases (small business/profession) as per the law.

What if AIS shows something I didn’t earn?⌄

Reconcile with your records and raise feedback/correction on the portal where applicable. Don’t ignore mismatches.

How do refunds work?⌄

If total TDS/advance tax is more than final tax liability, you can get a refund after processing. Ensure bank details are correct.

What is marginal relief?⌄

A relief that can reduce the harsh jump in tax when surcharge triggers; it ensures the additional tax doesn’t exceed the income above threshold by too much, as per rules.

What are common mistakes that cause notices?⌄

Not matching AIS/26AS, forgetting bank/FD interest, incorrect ITR selection, missing e-verification, and claiming unsupported deductions.

Where do I file online?⌄

On the official Income Tax e-Filing portal. Use only the official website and verify the URL.

What is PAN and why is it important?⌄

PAN is your unique tax identifier used across filings, TDS credits, AIS, and many financial transactions.

Who is a resident vs non-resident?⌄

Residency depends on day-count rules under the Income-tax Act and affects scope of income taxed. Check the current rules for your situation.

Can ITR help for visa/income proof?⌄

Yes. Filed ITRs are commonly used as income proof for loans and visas.

Do I need to file if I have foreign assets?⌄

Often yes; foreign assets/income can trigger mandatory filing and additional disclosures. Verify your exact case.

What is self-assessment tax?⌄

Tax you pay if there’s remaining liability after TDS/advance tax, paid before filing.

What is advance tax?⌄

Tax paid in installments during the year if your tax liability crosses the specified threshold, common for non-salary income.

How do I pick between regimes quickly?⌄

List real deductions/exemptions you can claim. If the list is large, old regime may win; if small, new regime often wins. Then confirm using a calculator.

Is this page official tax advice?⌄

No. It’s educational. Use it to understand concepts, then verify the current-year rules and your eligibility before filing.

Can I edit my return after filing?⌄

Revisions are possible within allowed time windows if the law permits. Check current-year timelines on the official portal.

What is ITR-2 used for?⌄

Often used when you have capital gains or multiple houses/foreign assets but no business income. Eligibility conditions apply.

What is ITR-3 used for?⌄

Commonly for business/professional income cases, including certain capital gains/other income combinations.

Does employer regime declaration lock me?⌄

Not always. You can often choose at filing time; however, TDS may be impacted. Verify rules for your case.

Next: Old vs new tax regime — complete guide →