TAX CLARITY, MADE SIMPLER
Free GST & tax tools
for India
Explore GST and income-tax calculators, GST rate and HSN/SAC lookups, GSTIN checks, and practical guides for India.
Free to use · See the method and sources
QUICK ESTIMATE
GST calculator
Estimate only · confirm the applicable rate before filing.
Popular tools
Everyday starting points, all in one place.
GST Calculator
Add or remove GST and see the breakdown.
ADD · REMOVE GST ITIncome Tax Calculator
Compare an estimated tax by regime.
TAX ESTIMATE HSNHSN Code Finder
Search product and service codes.
PRODUCT LOOKUP %GST Rate Finder
Explore common rates by category.
RATE LOOKUPBrowse all 50+ tax tools and calculators
New vs Old Regime Calculator
Compare estimated tax under the available new and old regime inputs. Confirm current year rules, deductions, and eligibility before filing.
Open tool → AI PoweredAI GST Notice Reply Generator
Create a starting draft from the notice details you enter. Verify every fact and legal reference, and have a qualified professional review it before use.
Open tool → TrendingGST Health Score Quiz
Answer a short set of GST compliance questions and review general areas that may need closer attention.
Open tool → Pro ToolBulk GSTIN Validator
Validate up to 50 GST numbers at once offline. Verifies format, Luhn checksum, decodes state names, and exports results to CSV.
Open tool → New HubIncome Tax Tools Hub
Complete direct tax suite: New vs Old Regime, HRA exemption calculator, TDS section finder, Section 44AD presumptive tax, and advance tax.
Open tool → NewRestaurant GST Calculator
Estimate tax for restaurant and hospitality scenarios using the assumptions shown in the tool. Verify the rate and input tax credit treatment for your case.
Open tool → NewReal Estate GST Calculator
Explore an estimated GST calculation for property scenarios. Confirm project classification, dates, and applicable notifications before relying on a result.
Open tool → NewFreelancer Invoice Generator
Specialized for developers and designers. Supports USD/EUR currencies, 0% zero-rated export under LUT, and SAC 9983.
Open tool → NewGSTR Mismatch Checker
Compare selected return and ITC figures to identify differences for further review. A difference alone does not determine notice risk or liability.
Open tool → NewGST Refund Calculator
Estimate a refund using the scenario and formula described in the tool. Verify eligibility, current rules, and supporting figures against official sources.
Open tool → NewE-Invoice Eligibility Checker
Review common e-invoice applicability inputs and exceptions. Confirm the current threshold and notified exclusions for your business.
Open tool → NewTDS Section & Rate Finder
Searchable directory of 194C, 194J, 194I, 194H, 194Q with interactive deduction calculator and non-PAN penal rates.
Open tool → NewSection 44AD Presumptive Tax
Estimate presumptive income using the amounts and rates entered. Confirm current eligibility, limits, and exclusions before filing.
Open tool → NewSection 128A Amnesty Tracker
Review information about the statutory waiver scheme and its conditions. Confirm current deadlines and eligibility from official sources.
Open tool → NewSaaS & Export LUT Calculator
Evaluate the 5 statutory tests under Section 2(6) of IGST Act for Export of Services and track annual LUT renewals.
Open tool → NewHRA Exemption Calculator
Calculate exact tax-free House Rent Allowance under Section 10(13A) Rule 2A across Metro (50%) and Non-Metro (40%) cities.
Open tool →E-commerce Seller Toolkit
Estimate marketplace payout after fees, GST TCS at 0.5%, and Section 194-O TDS at 0.1%.
Open tool →MSME/Udyam Checker
Check your business eligibility for MSME registration (Micro, Small, Medium) based on revised investment and turnover limits.
Open tool →GST Rate Finder
Find the GST rate for any product by name. Just type "laptop", "cement", or "gold" — no HSN code needed.
Open tool →Credit/Debit Note
Generate GST-compliant credit notes and debit notes. Auto-calculates CGST/SGST/IGST adjustments.
Open tool →MSME Payment Interest
Calculate compound interest on delayed payments to MSMEs under Section 16 of the MSMED Act.
Open tool →QRMP Eligibility
Check if your business qualifies for quarterly GST return filing under the QRMP scheme.
Open tool →Notice Reply Deadline
Estimate a reply deadline from the date and period you enter, then verify it against the notice and applicable rules.
Open tool →Margin Scheme (Second Hand)
Calculate your tax savings on second-hand goods. Pay GST only on your profit margin, not the full sale value.
Open tool →GST on Rent
Instantly check GST applicability, Reverse Charge Mechanism (RCM) rules, and tax liability for commercial or residential rent.
Open tool →GST on Freight
Determine GST liability, RCM applicability, and ITC eligibility for transport of goods (GTA vs Courier) in India.
Open tool →Aggregate Turnover
Calculate your exact GST turnover. Instantly check if you cross the ₹20L/₹40L mandatory registration limit or Composition Scheme thresholds.
Open tool →Rate Comparison
Compare old GST slabs vs new GST 2.0 rates. Calculate the exact ₹ price impact for your end consumers.
Open tool →MRP Revision Calculator
Reverse calculate your base price and generate a new MRP after a GST rate change to preserve your margins exactly.
Open tool →ITC Reversal Checker
A simple yes/no decision tree to determine if a GST rate drop legally requires you to surrender your Input Tax Credit.
Open tool → Most PopularGST Calculator
Add or remove GST instantly. Supports 5%, 18%, 40% (GST 2.0) and custom rates. Shows CGST/SGST split.
Open tool →HSN / SAC Code Lookup
Search HSN codes for goods and SAC codes for services. Instant client-side filtering with GST rate display.
Open tool →GSTIN Validator
Validate any 15-digit GST number offline. Verifies format, checksum, decodes state name and embedded PAN.
Open tool → Most PopularGST Invoice Draft Generator
Create a printable invoice draft with estimated CGST/SGST or IGST. Review required details before issuing.
Open tool → TrendingE-Way Bill Limit Checker
Instantly check mandatory E-Way Bill threshold limits (₹50k vs ₹1 Lakh) for inter-state and intra-state goods movement.
Open tool →Late Fee Calculator
Calculate GST late fees and interest for delayed filing of GSTR-1, GSTR-3B, or GSTR-9. Accurate client-side calculation.
Open tool →RCM Calculator
Calculate Reverse Charge Mechanism (RCM) liability instantly.
Open tool →Composition Scheme
Check eligibility and calculate flat composition tax rates.
Open tool →E-Way Bill Validity
Calculate exactly how many days an E-way bill is valid.
Open tool →ITC Calculator
Calculate Input Tax Credit set-off and net GST payable.
Open tool →Interest Calculator
Calculate interest on delayed GST payments at 18% p.a.
Open tool →TDS Calculator
Calculate 2% TDS under GST for contracts over ₹2.5 Lakhs.
Open tool →TCS Calculator
Estimate the current 0.5% GST TCS on net taxable e-commerce supplies.
Open tool →Penalty Calculator
Calculate statutory GST penalties for fraud, late payment, and fake invoices.
Open tool →GST Due Dates Calendar
Track all important GST return filing due dates. Never miss a deadline and avoid late fees and penalties.
Open tool →GSTR-9 Checklist
Interactive checklist for filing GSTR-9 Annual Return and avoiding notices.
Open tool →LUT Renewal Reminder
Review the financial-year timing for LUT renewal and confirm current filing requirements.
Open tool →Director RCM Calculator
Determine GST applicability (18% RCM vs Salary) on director remuneration.
Open tool →Supply Type Classifier
Classify bundled goods into Composite vs Mixed Supply for accurate tax rates.
Open tool →Multi-GSTIN Splitter
Allocate values and determine IGST/CGST across multiple state branches.
Open tool →Pin to Pin Distance Calculator
Check transport distance between source and delivery pincodes for E-way bill generation.
Open tool →Explore tax tools by task
Start with the question you need to answer: estimate GST, look up a rate or code, check a GSTIN, compare income-tax options, or read a practical guide. The right result depends on the period and details you enter.
Calculate GST
Add GST to a base amount or remove it from an inclusive price, then review the tax split using your selected rate.
Open GST calculator → 02Find rates and HSN/SAC codes
Search rate and product or service code references. Confirm classification and current treatment with the applicable official source.
Search rates and codes → 03Check a GSTIN
Review a GSTIN’s structure and checksum as a first step; confirm live registration status through the official GST portal.
Open GSTIN validator → 04Explore income-tax tools
Compare regime estimates, review HRA inputs, find TDS sections, and explore advance-tax calculations for the period shown.
Browse income-tax tools → 05Explore GST notice tools
Find tools for organizing notice details, reviewing selected return mismatches, and preparing a draft outline. Confirm deadlines and filing steps against the notice and official guidance.
Browse notice tools → 06Read practical tax guides
Explore explainers on GST rates, returns, identifiers, and common business tax questions, with period and source context.
Browse tax guides →BUILT FOR CLARITY
Clear estimates.
Sources you can check.
Taxzentic is an independent collection of calculators, lookups, and guides. Results are estimates based on details you enter. Use each tool’s method notes and linked references where provided; Taxzentic does not issue official tax determinations or submit returns. Check a primary source for the period and facts that apply to you.
Read our methodology →SOURCES & REVIEW
Know where the answer comes from
Check current rules and notices with the official departments.
FAQ
Questions about our GST and tax tools
Are Taxzentic tools free to use?
Yes. Taxzentic provides free GST and income-tax calculators, lookups and guides that you can open directly from the site.
Can I use a calculator result to file a return?
Treat a calculator result as an estimate based on the details you enter. Review the tool’s method and sources, confirm the rule applies to your facts and tax period, and verify filing details through the official portal or a qualified tax professional.
Where do formulas and tax references come from?
Relevant tool pages show the calculation method and source references where available. Check the cited official material for the tax period, classification and facts that apply to your case.
What can I find on Taxzentic?
Explore GST and income-tax calculators, GST rate and HSN/SAC lookups, GSTIN checks, and explainers on common tax tasks. Use the search box or browse the tool catalogue to find a page for your question.
Does the GST calculator choose the correct rate for my product?
No. The GST calculator applies the rate you select. A rate finder or code lookup can help with research, but confirm the product or service classification and current rate using applicable official schedules and notifications.
Which financial year or tax year does a calculator cover?
Check the period, assumptions, and last-updated information on the individual tool page. Tax rules can differ by period, so match the calculator to the year and facts involved and confirm them with current official guidance.
Are my details always processed only in my browser?
Data handling depends on the tool. Some calculations run in your browser, while optional AI features may send the fields you submit to a server and AI provider. Read the tool’s privacy note and the Privacy Policy before entering sensitive information.
Do Taxzentic tools submit returns or payments for me?
No. The calculators and lookups provide estimates or reference information; they do not submit a GST or income-tax return or make a payment on your behalf.