Tax & Business Calculators
Instant calculators for GST, TDS, Tax Audit, Company Registration and more. 100% free.
Income Tax Calculator — FY 2025-26
Compare Old vs New Tax Regime. Find your total tax, effective rate, and monthly take-home pay instantly.
Enter Your Details
Enter your income details and click Calculate Tax to see your tax breakdown and regime comparison.
GST Registration Eligibility Checker
Find out if your business is required to register for GST under the Goods & Services Tax Act.
GST Registration Result
Normal State Threshold
₹40 Lakh for goods, ₹20 Lakh for services
Special State Threshold
₹20 Lakh for goods, ₹10 Lakh for services
Mandatory Registration
Inter-state supply, e-commerce sellers & RCM — regardless of turnover
Voluntary Registration
Even below threshold — useful for ITC claims & B2B credibility
GST Payable Calculator (with ITC)
Calculate your net GST liability after setting off Input Tax Credit (ITC) for CGST, SGST, and IGST.
GST Liability Breakdown
TDS Deduction Calculator
Calculate TDS to be deducted, deposited, and the net amount payable to payee as per Income Tax Act.
TDS Calculation Result
TDS Due Date
7th of next month. March: 30th April
No PAN Penalty
TDS at 20% or applicable rate — whichever is higher (Sec 206AA)
Late Filing Penalty
₹200/day under Sec 234E. Max = TDS amount
Interest on Delay
1% p.m. for non-deduction, 1.5% p.m. for non-deposit
Business Structure Advisor
Answer a few questions to find the best legal structure for your firm — Sole Proprietorship, Partnership, LLP, or Pvt Ltd.
Recommended Business Structure
Company Type Comparator
Compare Sole Proprietorship, Partnership Firm, LLP, One Person Company (OPC), and Private Limited Company side by side.
| Feature | Sole Proprietor | Partnership | LLP | OPC | Pvt Ltd |
|---|---|---|---|---|---|
| Liability | Unlimited | Unlimited | Limited ✓ | Limited ✓ | Limited ✓ |
| Min. Members | 1 | 2 | 2 | 1 | 2 |
| Registration | Optional | Optional | Mandatory | Mandatory | Mandatory |
| Compliance | Very Low ✓ | Low ✓ | Moderate | Moderate | High |
| Tax Rate | Slab rates | 30% | 30% | 25%/30% | 22%-25% ✓ |
| Funding / VC | ❌ No | ❌ No | Limited | ❌ No | ✅ Yes |
| Bank Loan | Difficult | Moderate | Easy ✓ | Easy ✓ | Easiest ✓ |
| Perpetual Existence | ❌ No | ❌ No | ✅ Yes | ✅ Yes | ✅ Yes |
| GST Threshold | ₹40L/₹20L | ₹40L/₹20L | ₹40L/₹20L | ₹40L/₹20L | ₹40L/₹20L |
| Audit Required | If T/O > 1Cr | If T/O > 1Cr | If T/O > 40L | Mandatory | Mandatory |
| Ideal For | Small shops, freelancers | Family business, professionals | Professional firms, startups | Solo entrepreneurs | Growth businesses, startups |
| Setup Cost | ₹0–₹2K ✓ | ₹2K–₹5K | ₹5K–₹15K | ₹7K–₹20K | ₹10K–₹25K |
💡 Quick Guide: Solo & small business → Proprietorship. Professionals (CA, Doctor, Lawyers) → LLP. Solo entrepreneur wanting incorporation → OPC. Growth-oriented startup → Pvt Ltd Company.
Tax Audit Applicability Checker
Find out if a Tax Audit under Section 44AB is mandatory for your business or profession for the current financial year.
Tax Audit Result
Business Threshold
₹1 Crore (₹10 Crore if cash transactions ≤ 5%)
Profession Threshold
₹50 Lakhs gross receipts (₹75L for specified professions)
Penalty for Non-Compliance
½% of turnover or ₹1.5 Lakh — whichever is lower
Due Date
31st October of the Assessment Year
GST Late Fee & Interest Calculator
Calculate late fees and interest payable for delayed GST return filing and late payment of GST liability.
Late Fee & Interest Calculation
GSTR-3B Late Fee
₹50/day (₹25 CGST + ₹25 SGST). NIL: ₹20/day
GSTR-1 Late Fee
₹50/day (₹25 CGST + ₹25 SGST). NIL: ₹20/day
Interest on Late Payment
18% per annum on outstanding tax liability
Max Late Fee Cap
₹10,000 per return (₹5,000 each CGST + SGST)
ITR Form Type Finder
Not sure which ITR form to file? Answer a few simple questions to find out the correct ITR form for your situation.
Recommended ITR Form
ITR-1 (Sahaj)
Salary, 1 House Property, Other Sources. Income ≤ ₹50L
ITR-2
No Business income. Capital gains, foreign income, director
ITR-3
Business / Profession income. Most detailed individual return
ITR-4 (Sugam)
Presumptive income (44AD/44ADA/44AE). Income ≤ ₹50L