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Free tools for founders
In short: 39 free tools that answer the questions founders ask before they register or file: which structure to choose, whether a name will pass, what it costs, which deadlines apply, what a late filing costs, which trademark class you need, and whether GST applies. No sign-up, and each result has a shareable link.
Reviewed by Sagar Ruparelia, Founder & Head, Ofin Legal.Updated
Look up & verify
GSTIN Validator
Validate and decode any GST number: check digit, state, PAN and entity type.
FSSAI Licence Number Check
Decode a 14-digit FSSAI number and verify it on FoSCoS.
CIN & LLPIN Lookup
Decode a CIN or LLPIN: company type, state, year and industry, then verify on MCA.
DIN Lookup
Check a DIN, see the next KYC due date and verify the director on MCA.
Company & LLP Name Search
See how MCA will compare your proposed name and which variants could clash.
IEC Code Lookup
Check an IEC, decode the PAN behind it and verify on DGFT.
TAN Verification
Check a TAN format, decode it and confirm it on the Income Tax portal.
Udyam Verification
Check a Udyam number’s format and verify the MSME certificate on the Udyam portal.
Starting a business
Business Structure Finder
Seven questions to choose between Pvt Ltd, LLP, OPC, partnership and proprietorship.
Company Name Checker
Test a proposed company or LLP name against MCA naming rules before you apply.
Company Registration Cost Calculator
Add up registration and first-year costs for Pvt Ltd, LLP, OPC and more.
Business Registration Checklist
Your personal list of registrations and licences, with costs.
Startup India Eligibility Checker
Do you qualify for DPIIT recognition and the 80-IAC tax holiday?
Incorporation Fee & Stamp Duty Calculator
MCA fees and state stamp duty to incorporate a company or LLP.
Company Name Generator
Name ideas from your keywords, already checked against MCA rules.
ROC & MCA compliance
ROC Compliance Calendar
Every ROC filing deadline for your company or LLP, with a calendar download.
MCA Late Fee Calculator
See the additional fee for late AOC-4, MGT-7, LLP Form 8/11 and other MCA forms.
AGM Due Date Calculator
Last date for your first or annual AGM, and the filings that follow.
DIR-3 KYC Due Date Tracker
Your next DIR-3 KYC date under the new three-yearly rule, and the late fee.
Company changes & closure
Income tax & TDS
TDS Late Fee & Interest Calculator
Late fee for TDS returns and interest for late deduction or deposit.
Audit Applicability Checker
Which audits apply: tax audit, LLP audit, company audit and CARO.
Business Tax Comparison
Compare tax on your profit as a company, LLP or proprietorship.
GST
GST Registration Checker
Find out if your business must register for GST, by state, turnover and how you sell.
GST Late Fee & Interest Calculator
Late fee for GSTR-3B, GSTR-1, GSTR-9 and CMP-08, plus interest.
GST Return Due Date Calendar
Your GST return due dates, monthly or quarterly, with a calendar download.
E-invoice & E-way Bill Checker
Do you need e-invoicing or an e-way bill? Limits and exemptions.
GST Composition Scheme Checker
Can you use the composition scheme, and how much tax would you pay?
Trademarks
Trademark Class Finder
Find the right trademark class among all 45, by product, service or business type.
Trademark Status & Deadline Tool
What your trademark status means and every deadline that follows.
Browse all 45 trademark classes
Registrations & licences
Employees & payroll
Maharashtra Professional Tax Calculator
Monthly professional tax by salary slab, payroll totals, and PTEC vs PTRC.
PF & ESI Calculator
Do PF and ESI apply? Employee and employer contributions for any salary.
Professional Tax by State
Professional tax on a salary in any state that levies it.
Export & foreign investment
Questions about these tools
Are Ofin Legal’s tools free?
Yes. Every tool is free to use with no sign-up. They run in your browser, so what you type is not stored by Ofin Legal unless you choose to send an enquiry.
How accurate are the calculators?
Each tool applies the rules published by the government body concerned (MCA, the GST Council and CBIC, the MSME Ministry, the Maharashtra GST Department and IP India). The rules were checked against those official sources and reviewed by Ofin’s founder Sagar Ruparelia; each tool page lists them with links. Rules change, so treat results as guidance and confirm on the official portal before you file.
Can Ofin Legal do the filing for me?
Yes. Every tool links to the matching Ofin service with its fixed starting fee. Send your details from any tool and your result is attached to the enquiry, so an expert can quote within 24 hours. Call or WhatsApp +91 91369 79390.
Do the tools work on mobile?
Yes. All tools work on phones and tablets, and every result has a shareable link you can send to a co-founder or accountant.
Free planning help for UAE setup
Plan your UAE company with our setup cost planner, then talk to the UAE desk for a fixed written quote.
- Setup cost calculatorUAE business setup cost depends on four choices: licence route (mainland, free zone or offshore), activity…
- Mainland vs free zoneChoose a mainland company if most customers are in the UAE, because it can sell locally without extra…
- Corporate taxUAE corporate tax is 0% on taxable income up to AED 375,000 and 9% above it, under Federal Decree-Law No. 47…
- VAT registrationUAE VAT registration is mandatory once taxable supplies and imports exceed AED 375,000 over the past 12…
Ready to start your business the right way?
Talk to an Ofin expert today; we’ll recommend the right structure and send a fixed-price proposal.
