This is a comprehensive reference guide and mapping tool for the Income Tax Act 2025, which replaces the Income Tax Act 1961 effective 1st April 2026. It covers all 536 sections across 23 chapters, with complete ICAI-published section mapping.

1. Use the Section Finder tab to search any keyword, topic, or old section number — it instantly shows the new ITA 2025 section alongside the corresponding ITA 1961 section.
2. Use the Chapters tab to browse by subject area — Salary, Capital Gains, TDS, Deductions, Business Income, Penalties, etc.
3. Use the Full Mapping Table tab for a complete side-by-side section comparison of ITA 2025 vs ITA 1961 — covering status (Same / Modified / Merged / New).
4. Refer the Key Changes tab for the most critical structural changes — replacement of “Previous Year / Assessment Year” with “Tax Year”, all TDS sections consolidated under Section 393, and Schedule-based provisions.
5. Use the Tax Rates & TDS tab for updated income tax slabs, capital gains rates (post Finance Act 2024), and the complete TDS rate table under Section 393 of ITA 2025.
6. Use the Compliance Calendar tab for all statutory due dates (advance tax, TDS returns, ITR filing) applicable from AY 2026-27 under ITA 2025.
7. Click any section card to expand it and read a plain-language explanation with key points and practitioner tips.
8. Click Download PDF to save or print section details for your working papers or client files.

💡 Key Change to Remember: All TDS sections (old Sec 192–194T) are now consolidated under Section 393 of ITA 2025. “Assessment Year” and “Previous Year” are replaced by a single concept — “Tax Year”. The Act is effective from 1st April 2026 (AY 2026-27). Section numbers have changed significantly — e.g., old Section 80C is now Section 123, Capital Gains (old Sec 45) is now Section 67, and Return of Income (old Sec 139) is now Section 263.

This is a comprehensive income tax calculator for FY 2025-26 (AY 2026-27) covering all taxpayer types — Individuals, Senior Citizens, Super Senior Citizens, HUF, Firms/LLPs, Companies, AOP/BOI, and Co-operative Societies — under both Old and New Tax Regimes.

1. Step 1 — Taxpayer Profile: Select your taxpayer type (Individual, Senior Citizen 60–80 yrs, Super Senior 80+ yrs, HUF, Firm/LLP, Domestic/Foreign Company, etc.) and choose your tax regime. Select “Calculate Both & Auto-Recommend” to compare both regimes simultaneously and get an automatic recommendation.
2. Step 2 — Income Details: Enter income from all applicable sources — Salary (with HRA details, LTA, allowances, city of residence for HRA calculation), House Property (rental income, municipal taxes, home loan interest for let-out and self-occupied), Capital Gains (STCG/LTCG on equity, mutual funds, property, and other assets — with updated rates post Finance Act 2024), Business/Profession income, and Other Sources (FD interest, dividends, lottery/gaming winnings).
3. Step 3 — Deductions & Exemptions: Under the Old Regime, enter all Chapter VI-A deductions — 80C (PPF, ELSS, LIC, EPF — up to ₹1.5L), 80CCD(1B) (NPS — additional ₹50,000), 80D (medical insurance — up to ₹75,000 or ₹1L), 80E (education loan interest), 80G (donations), 80GG (rent paid without HRA), HRA exemption, LTA, and others. Under the New Regime, only Standard Deduction (₹75,000 for salaried) and employer NPS 80CCD(2) are available.
4. Step 4 — Taxes Already Paid: Enter TDS deducted from salary/FD/rent, advance tax paid in instalments, self-assessment tax paid, relief u/s 89 (salary arrears), and foreign tax credit u/s 90/91.
5. Click Calculate Tax to view a complete computation summary — gross income, deductions, taxable income, tax at applicable rates, surcharge, Health & Education Cess (4%), and net tax payable or refundable.
6. Use the Regime Comparison tab for a detailed side-by-side analysis of Old vs New regime across all parameters to decide which regime saves more tax for your specific income profile.
7. Refer the Slab Reference tab for complete tax slabs for all taxpayer categories under both regimes, including company tax rates, surcharge rates, and capital gains rates.
8. Click Download PDF to generate a professional tax computation statement for ITR filing reference, client advisory, or record-keeping.

💡 FY 2025-26 Key Update: Under the New Regime, income up to ₹12 lakh is effectively zero tax due to enhanced rebate u/s 87A (₹60,000). For salaried employees, with ₹75,000 standard deduction, gross salary up to ₹12.75 lakh attracts zero tax. The New Regime is the default — you must actively opt for the Old Regime via Form 10-IEA if you have business income. Always compute both regimes; old regime wins only if total deductions + exemptions exceed approximately ₹3.75 lakh.

This calculator computes advance tax liability for FY 2026-27 (AY 2027-28) under the Income Tax Act 2025, covering all taxpayer types and both tax regimes. It also computes interest u/s 424 (shortfall) and 425 (deferment) for missed or underpaid instalments.

1. Step 1 — Taxpayer & Regime: Select your taxpayer category (Individual below 60, Senior Citizen, Super Senior, HUF, Firm/LLP, Domestic Company — Normal/115BAA/115BAB, Foreign Company, Presumptive scheme u/s 44AD/44ADA), tax regime (Old or New), and residential status (ROR / RNOR / NRI).
2. Step 2 — Estimated Income: Enter estimated annual income from all sources for the full financial year (April 2026 – March 2027) — Salary/Pension, House Property (negative for HP loss), Business/Profession, STCG at slab rate, STCG u/s 111A (equity — 20%), LTCG u/s 112A (equity — 12.5% above ₹1.25L exemption), Other LTCG (property/debt — 12.5%), Other Sources (FD interest, dividends), and VDA/Crypto (30% flat).
3. Deductions: If using Old Regime, enter applicable deductions — Standard Deduction (₹50,000), 80C (up to ₹1.5L), 80D, 80CCD(1B) (NPS), HRA exemption, and other deductions. Under New Regime, ₹75,000 standard deduction is auto-applied.
4. TDS & Prior Payments: Enter expected total TDS for the year, advance tax already paid in prior instalments, and self-assessment tax paid.
5. Click Calculate Advance Tax to see the instalment schedule with amounts due on 15 June (15%), 15 September (45%), 15 December (75%), and 15 March (100%) as per Section 408 ITA 2025. Presumptive taxpayers pay entire advance tax in one instalment by 15 March.
6. Review the Compliance Checklist and Risk & Interest Advisory for guidance on exposure to Sections 424 and 425 interest.
7. Interest u/s 424 & 425 tab: Enter tax liability, TDS, instalment-wise amounts paid, and payment dates to compute interest — 1% per month u/s 424 for total shortfall and 3% flat per instalment u/s 425 for deferment (1% for the March instalment). Safe harbour: ≥12% by 15 June and ≥36% by 15 September attract no Section 425 interest.
8. Pay advance tax via Challan ITNS 280 at incometax.gov.in — select AY 2027-28 and payment type (100) Advance Tax.
9. Click Download PDF to save the instalment schedule with computation details for records and compliance.

💡 Who is Exempt: Advance tax is not required if net tax liability (after TDS) is less than ₹10,000. Resident senior citizens aged 60+ with no business income are fully exempt from advance tax u/s 403(3) ITA 2025 — entire tax is payable as self-assessment tax before ITR filing. Revise estimates at each instalment date if income changes significantly during the year.

This is a complete TDS compliance tool covering Sections 392 and 393 of ITA 2025 (consolidating all old sections 192–194T). It includes a Smart Section Identifier, TDS liability calculator, interest and penalty computation, and a full section reference table — updated for FY 2026-27.

1. Smart Identifier tab: Describe your payment in plain language (e.g., “professional fees to CA”, “rent for office space”, “contractor payment for construction”) or click a quick-pick button (Salary, Contractor, Professional Fees, Rent, Commission, etc.). The tool automatically identifies the correct TDS section, applicable rate, threshold limit, deposit due date, and compliance checklist.
2. TDS Calculator tab: Select the applicable TDS section from the dropdown (with both old ITA 1961 and new ITA 2025 references shown), payee type (Individual/HUF or Firm/Company/Others), payment sub-type where applicable, and enter the payment or credit amount.
3. Indicate whether PAN is available — if PAN is not furnished, higher TDS rate applies u/s 397(2) ITA 2025 (generally 20% or higher of the normal rate, whichever is higher). Select date of payment/credit for due date computation.
4. Click Calculate TDS to get: TDS amount to be deducted, net payment to be made to deductee, applicable section and rate, deposit due date, TDS return form and quarter, and a detailed compliance advisory.
5. Interest & Penalty tab: If TDS was deducted late or not deducted at all, enter the TDS amount, date TDS was deductible, and actual deposit date. The tool computes: interest u/s 398(3)(a)(i) at 1% per month for non-deduction, interest u/s 398(3)(a)(ii) at 1.5% per month for late deposit, penalty u/s 448 (equal to TDS not deducted/deposited), late filing fee u/s 427 (₹200/day, max = TDS amount), and prosecution risk u/s 476 for wilful defaults.
6. Section Reference tab: Use the complete TDS rate reference table showing old section (ITA 1961), new section (ITA 2025), nature of payment, rate, threshold, deductor type, and key notes — covering all payment types including the new Section 393(3)[Sl.7] for partner salary/remuneration (w.e.f. 1 April 2025) and revised thresholds under ITA 2025.
7. Click Download PDF Report for a professional TDS computation and compliance statement suitable for audit files or client records.

💡 New Compliance from FY 2025-26 — Partner TDS: Firms and LLPs must now deduct TDS @ 10% on salary, remuneration, commission, bonus, or interest paid/credited to partners exceeding ₹20,000 per year per partner under Section 393(3)[Sl.7] ITA 2025 (old Section 194T, w.e.f. 1 April 2025). Even credit to a partner’s capital account triggers TDS. Non-deduction attracts 1%/month interest + equal penalty + prosecution risk.

This tool computes GST late fees and interest for GSTR-1 and GSTR-3B — both for a single return and in bulk for multiple missed returns across a range of periods. It covers late fee caps, turnover-based slabs, amnesty notifications, and interest on delayed tax payment.

1. Single Return mode: Select the return type (GSTR-1 or GSTR-3B), filing frequency (Monthly or QRMP), and state category (Normal State/UT or Special Category State — J&K, HP, Uttarakhand, NE States, Sikkim affect the QRMP due date: 22nd vs 24th).
2. Enter the return period (month and year) and the actual date of filing. The standard due date is auto-populated (GSTR-1 Monthly: 11th of next month; GSTR-3B Monthly: 20th of next month; QRMP GSTR-3B: 22nd/24th of month after quarter end).
3. Select the nature of return (Normal or Nil) and your turnover slab — this determines the late fee cap: ₹5,000/Act for >₹5 Cr, ₹2,000/Act for ≤₹5 Cr, ₹1,000/Act for ≤₹1.5 Cr. Nil returns are capped at ₹500/Act (₹250 CGST + ₹250 SGST) regardless of slab.
4. If the due date was extended by a GST notification, enable the Extended Due Date option and enter the notified extended date.
5. For GSTR-3B interest: Enter the net cash tax payable (after applying ITC) separately for CGST, SGST/UTGST, and IGST. Interest is computed at 18% per annum u/s 50(1) CGST Act from the day after the due date to the actual payment/filing date.
6. Click Calculate to view: late fee under CGST Act and SGST Act separately, total late fee, interest amount (if GSTR-3B with tax), total liability, applicable amnesty or waiver, and a compliance advisory.
7. Bulk / Multiple Returns mode: Use the Quick Fill feature — select return type(s), frequency, state, date range, nature, and turnover slab. Click Auto-Fill Table to instantly generate all return rows. Add cash tax amounts per period and click Calculate All Returns for a consolidated return-wise liability statement.
8. Click Download PDF (single return) or Download Consolidated PDF (bulk) for a detailed liability report — useful for client advisory, CA practice, or GST department submissions.

💡 Key Points: GSTR-1 attracts only late fee — no interest, as it is an outward supply information return. Interest @ 18% applies only on GSTR-3B where actual cash tax was payable and delayed. Wrongly availed or excess ITC attracts a higher interest rate of 24% p.a. u/s 50(3) CGST Act. Always verify current amnesty notifications at gst.gov.in — amnesty benefits must be explicitly claimed and are not always applied automatically by the portal.

This tool helps small and medium business owners compare the GST Composition Scheme against the Regular GST Scheme on tax outflow, ITC benefit, compliance burden, and business suitability — with eligibility verification, ITC break-even analysis, and a multi-year projection.

1. Business Profile: Select your state category (Normal State/UT or Special Category — J&K, HP, Uttarakhand, NE States, Sikkim), business type (Trader dealing in Goods, Manufacturer, Restaurant/Food Services, or Service Provider), and enter your annual taxable turnover within the state.
2. ITC Estimation: Enter your estimated annual Input Tax Credit (ITC) available under the Regular Scheme. Alternatively, enter your total annual purchases/input cost and the tool will auto-estimate ITC. Note: Restaurants under the Regular Scheme at 5% rate are not eligible for ITC — this field is ignored for restaurant calculations.
3. Select the applicable GST rate under the Regular Scheme (5%, 12%, 18%, or 28%) for your goods/services. Enter your estimated annual compliance and CA costs under both schemes for a net cost-of-compliance comparison.
4. Supply Characteristics: Indicate whether your business makes B2B supplies (GST-registered buyers), interstate/export supplies, interstate purchases, or e-commerce sales. These factors may disqualify you from the Composition Scheme or make it commercially unviable.
5. Click Calculate & Compare to view: tax outflow under both schemes, net saving or additional cost, compliance cost comparison, ITC benefit lost under Composition, and an expert advisory recommendation.
6. Review the ITC Break-Even Analysis — it shows the exact ITC level at which the Regular Scheme becomes more beneficial than Composition.
7. Check the Composition Scheme Eligibility Checklist — if your inputs trigger any disqualifying condition (turnover >₹1.5 Cr for most states, interstate supplies, e-commerce sales), the tool flags you as ineligible with a warning.
8. View the Year-by-Year Tax Projection (5, 10, or 20 years) assuming 12% annual turnover growth and 8% ITC growth — to understand long-term tax implications of your scheme choice.
9. Click Download PDF for a comprehensive comparison report suitable for client advisory or business decision documentation.

💡 Critical Restrictions of Composition Scheme: Composition dealers cannot collect GST from customers (only “Bill of Supply” — no tax invoice), cannot claim any ITC on purchases, cannot make interstate outward supplies, and cannot supply via e-commerce operators (except restaurant food aggregators like Swiggy/Zomato). If your customers are GST-registered businesses (B2B), they will lose ITC on purchases from you — which significantly reduces your price competitiveness in B2B markets.

This tool calculates the maximum loan amount you are eligible for based on your income, existing EMI obligations, credit score, employment type, and age — across Home Loan, Car Loan, Personal Loan, Education Loan, and Business Loan categories.

1. Applicant Details: Enter your monthly net take-home income (after tax — salary or business income), employment type (Salaried Government/PSU, Salaried Private Sector, Self-Employed Professional, or Self-Employed Business), loan purpose, and your current age. Age is used to automatically cap the maximum loan tenure at retirement age (60 for salaried, 65 for self-employed).
2. Co-Applicant (Optional): Add a co-applicant’s monthly net income and employment type (e.g., spouse). Combined income increases overall loan eligibility. Select “Not Applicable” if applying individually.
3. Existing EMIs (Optional): Enter your total current monthly EMI obligations — sum of all running loan EMIs plus credit card minimum dues. This reduces the income available for the new loan under the FOIR norm applied by banks.
4. CIBIL / Credit Score (Optional): Enter your credit score (range 300–900). A score of ≥750 is preferred by most lenders for best rates and maximum eligibility. Scores between 650–749 may result in lower eligibility or higher interest rates; below 650 may disqualify from certain loan types.
5. Enter the expected interest rate (check with your target bank or NBFC) and desired loan tenure in years. The tenure will be automatically capped based on your age and retirement limit.
6. Click Check Eligibility to view: maximum eligible loan amount, corresponding monthly EMI, FOIR percentage used, income allocation breakdown, and an expert advisory on your eligibility profile.
7. Review the Loan Eligibility Across Tenures table — it shows how your maximum eligible loan amount, EMI, total interest, and total payout change across different tenure options using the same income and obligations. This helps you choose the optimal tenure balancing EMI affordability and total interest cost.
8. Click Download PDF to save the eligibility report — useful for bank visits, loan application preparation, or financial planning reference.

💡 FOIR Norm: Most banks restrict total EMI obligations (existing + proposed new loan) to 40–50% of net monthly income for salaried applicants and 50–55% for self-employed. To increase loan eligibility: add a creditworthy co-applicant, close smaller existing loans before applying, increase documented income, or choose a longer tenure to reduce the per-month EMI. A higher CIBIL score (750+) can also unlock better rates — effectively increasing the loan amount you can afford at the same EMI.

This tool calculates your exact monthly EMI, total interest payable over the full loan tenure, and generates a complete month-wise and year-wise amortisation schedule. It also models the impact of annual prepayments on your remaining tenure or monthly EMI.

1. Loan Parameters: Enter the loan amount (₹), annual interest rate (%), and loan tenure. You can enter tenure in years or months — toggle using the Tenure Type selector. For example, a 20-year home loan can be entered as “20 years” or “240 months”.
2. Loan Purpose (Optional): Select the loan type (Home Loan, Car/Vehicle Loan, Education Loan, Personal Loan, or Business Loan) for contextual advice in the results section.
3. Processing Fee (Optional): Enter the lender’s processing fee as a percentage (typically 0.25%–2% of loan amount). This is charged upfront and is factored into the effective cost of the loan shown in results.
4. Annual Prepayment (Optional): Enter a lump sum amount you plan to pay annually as a prepayment toward the principal. Then choose your preference: Reduce Tenure (keeps EMI same but loan ends earlier — saves maximum interest) or Reduce EMI (keeps tenure same but reduces monthly outflow — improves cash flow). The tool recalculates the entire schedule accordingly.
5. Click Calculate to view: monthly EMI, total interest payable, total amount payable (principal + interest), effective cost with processing fee, and a visual loan breakdown chart showing principal vs interest proportions.
6. Scroll to the Repayment Schedule — switch between Annual Summary (year-wise) and Monthly Detail (every single month) views. Each row shows: Opening Balance, EMI/Payment, Interest Paid, Principal Paid, Cumulative Interest Paid, and Closing Balance.
7. If prepayment is entered, the schedule automatically adjusts each year showing the reduced closing balance after the lump sum is applied, with the revised remaining tenure or EMI clearly indicated.
8. Click Download PDF to get a professionally formatted amortisation schedule — useful for tax purposes (home loan interest certificate for 80EEA/24(b) deduction claims), record-keeping, income tax filing, or submission to banks/housing finance companies.

💡 Power of Early Prepayment: The interest component is highest in the early months of a loan (front-loaded interest structure). Even a single annual prepayment equivalent to 1–2 EMIs made in the first 3–5 years can reduce your total interest outgo by 15–25% and cut the loan tenure by 2–5 years. If you have a home loan, the interest paid is deductible u/s 24(b) — ensure you obtain Form 16 (interest certificate) from your lender annually for accurate ITR filing.

This is a comprehensive all-in-one investment planning tool combining Lumpsum, SIP (Systematic Investment Plan), Step-Up SIP, and SWP (Systematic Withdrawal Plan) in a single integrated model. It computes XIRR (true return), adjusts for inflation, and generates a year-by-year portfolio projection with a downloadable PDF report.

1. Expected Return (%): Enter the expected annual rate of return on your investment. Typical benchmarks: 10–12% for equity mutual funds (long-term), 6–8% for debt/hybrid funds, 12–15% for aggressive equity/small-cap (with higher risk). Use a conservative estimate for long-term planning.
2. Lumpsum Investment (₹) — Optional: Enter a one-time investment amount if you are making an upfront investment (e.g., bonus, inheritance, maturity proceeds). Leave blank if you are investing only via SIP. Both lumpsum and SIP can be combined for a realistic projection.
3. Monthly SIP (₹) — Optional: Enter your monthly SIP contribution. This is invested at the beginning of each month and earns returns compounded monthly over the accumulation period. Leave blank for a pure lumpsum analysis.
4. Annual Step-Up in SIP (%) — Optional: Enter a percentage to increase your SIP amount automatically every year (e.g., 10% step-up — a ₹10,000 SIP becomes ₹11,000 in Year 2, ₹12,100 in Year 3, etc.). This simulates salary growth and significantly accelerates corpus creation — often doubling the final corpus compared to a flat SIP over 20+ years.
5. Years Till SWP: Enter the number of years after which you wish to start systematic withdrawals. During this period, SIP continues and lumpsum compounds. If you do not plan any withdrawal, use Years of Accumulation instead. If both are entered, Years Till SWP takes priority.
6. Monthly SWP (₹) — Optional: Enter the monthly withdrawal amount during the retirement or passive income phase. The tool projects how long your corpus will sustain the SWP, shows year-by-year depletion or growth, and identifies the corpus exhaustion year (if applicable).
7. Inflation Rate (%) — Optional: Enter an expected annual inflation rate (typically 5–7% for India) to see the real inflation-adjusted value of your future corpus — understanding true purchasing power at the time of retirement, not just nominal wealth.
8. Click Calculate to view: total corpus at end of accumulation, total investment made, total returns generated, XIRR (true annualised return), inflation-adjusted real corpus value, portfolio breakdown chart (principal vs returns), and SWP sustainability analysis.
9. Review the Year-by-Year Projection table — use the filters to view All Years, First 10 Years, Accumulation Only phase, or SWP Only (withdrawal) phase. Each row shows Opening Amount, Investment Made, Withdrawal, Returns Earned, and Closing Amount.
10. Click Download PDF to generate a professional financial planning report including assumptions, summary metrics, advisory insights, and the full year-by-year projection table — suitable for client presentations or personal financial planning documentation.

💡 Sustainable SWP Withdrawal Rate: A conservative and sustainable monthly withdrawal is approximately 0.3% of corpus per month (equivalent to ~3.6% annually). The internationally referenced “4% rule” suggests withdrawing up to 4% annually to ensure ~30-year sustainability. Use the Step-Up SIP feature — even a 10% annual step-up on a ₹10,000 SIP over 25 years at 12% return generates nearly 2.5× the corpus compared to a flat ₹10,000 SIP. Start early and increase SIP annually for maximum compounding benefit.