Reverse Tax Calculator India

Reverse Tax Calculator India - How Both Modes Work

This reverse tax calculator India handles two distinct but related problems that every Indian business owner, freelancer and consumer faces regularly.

Mode 1 - Remove GST (Reverse GST)

When a vendor gives you a GST-inclusive price and you need to know the GST-exclusive price (the base amount before tax) for accounting, expense reporting or ITC (Input Tax Credit) claims, you can't simply subtract the rate - that gives the wrong answer. This mode is also essential for Reverse Charge Mechanism (RCM) compliance: when purchasing from an unregistered supplier, you pay GST directly to the government rather than to the vendor, and you need the exact tax amount to self-invoice correctly as per CBIC (Central Board of Indirect Taxes and Customs) rules. The correct formula:

Example: ₹11,800 inclusive of 18% GST → Base = ₹11,800 ÷ 1.18 = ₹10,000. GST = ₹1,800 (split as ₹900 CGST + ₹900 SGST for same-state or ₹1,800 IGST for inter-state).

Mode 2 - TDS Gross Up

Freelancers and consultants often quote a number and then receive less than expected because the client deducts TDS before paying. To avoid this, calculate what to invoice. Note: if you are GST-registered and have a GSTIN (GST Identification Number), your invoice amount should be the grossed-up figure before adding 18% GST on top - use both modes together for the complete picture. Once you know your gross income, use the Income Tax Calculator to estimate the final tax liability on that income:

Example: You want ₹90,000 in hand, client deducts 10% TDS → Invoice ₹90,000 ÷ 0.9 = ₹1,00,000. Client deducts ₹10,000, pays ₹90,000. Done.

Reverse Tax Calculator India - GST Rate Quick Reference

Not sure which GST rate applies to your purchase or invoice? Here's the quick reference - no competitor's reverse GST calculator shows you this alongside the tool:

Reverse Tax Calculator India - Freelancer TDS Gross Up Cheatsheet

Don't do the math every time. Here's the exact invoice amount you need to raise for the most common freelancer scenarios - so you always receive exactly what you need:

Values use round-up rounding. Check the TDS Calculator to verify the deduction your client needs to deposit and the exact section that applies to your engagement. For salaried employees whose employer deducts TDS monthly, see the Salary Breakup Calculator for the full CTC-to-in-hand breakdown.

Reverse Tax Calculator India - CGST vs SGST vs IGST Explained

The same 18% GST can be collected in two completely different ways depending on whether the transaction is an intra-state supply (buyer and seller in the same state) or an inter-state supply (different states). Getting this wrong on an invoice causes ITC rejection for your client and can trigger a GST audit notice from the CBIC:

Reverse Tax Calculator India - The Third Use Case: Salary Gross-Up

Most users discover this calculator for GST removal or TDS gross-up. There is a third, equally important use case: working backwards from a desired in-hand salary to the CTC you need to demand.

How Salary Gross-Up Works

When negotiating a job offer, most candidates anchor on CTC. The smarter approach is to start from your desired monthly in-hand amount and work backwards. The problem: CTC-to-in-hand is not a simple subtraction. It depends on your tax slab, EPF contribution, professional tax (state-specific), HRA exemption, and which regime you choose. A rough reference for new regime at common CTC levels:

The gap widens sharply above ₹15 LPA as the 30% tax slab activates. For the precise reverse calculation at your specific salary structure, deductions, and city, the full CTC-to-in-hand breakdown including all components and regime comparison models every deduction to show you exactly what in-hand you get at any CTC. The CTC vs in-hand salary guide covers the complete formula, common salary slip mistakes, and how to read offer letters accurately.

Forward GST Calculator: When You Need the Other Direction

This reverse tax calculator removes GST from a GST-inclusive price. For the forward calculation: adding GST to a base price, comparing 5%/12%/18%/28% slabs, computing CGST + SGST vs IGST on your invoice: the GST calculation on any invoice amount with full slab and component breakdown handles it directly. The two tools work together: use forward GST when quoting a client, reverse GST when verifying a vendor's invoice.

TDS: Rates, Thresholds, and What Happens After Deduction

This calculator handles the gross-up arithmetic, but TDS compliance involves more than arithmetic: section-specific rates, threshold limits, Form 26AS reconciliation, and ITR claim procedures. For the complete reference covering every TDS section from 192 (salary) to 194J (professional fees) to 194C (contractor), the complete TDS India guide covering all sections, rates, thresholds, and ITR credit claims is the companion article to use alongside this calculator.

Reverse Tax Calculator India - FAQs