Reverse Charge Calculator

Calculate GST under Reverse Charge Mechanism (RCM). Find your RCM liability, ITC eligibility, and net tax payable for unregistered supplier purchases and notified services.

Reverse Charge Mechanism (RCM) Calculator

Compute RCM liability, ITC benefit and net cash outflow

Purchase value (from unregistered/notified supplier) Rs 1,00,000
Rs 1,000Rs 1Cr
Rs
GST rate on supply
0%28%
%
ITC eligibility
Net cash outflow
---
After ITC benefit
RCM GST payable
---
Paid to govt directly
ITC credit
---
Claimable as ITC
Purchase value---
RCM GST (18%)---
ITC credit back---
Net effective cost---
Cost vs RCM tax vs ITC
Purchase: ---
RCM GST: ---

RCM liability arises on notified goods/services or unregistered purchases. Consult CA for applicability.

RCM cash flow — gross vs net after ITC
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ThriftRupee Insight

Under RCM, if you buy from an unregistered supplier above Rs 5,000 per day, you pay GST directly to the government — not the supplier. The good news: you can claim this as ITC (if used for business), making the net cash outflow zero for most GST-registered businesses.

Reverse Charge Mechanism (RCM) in GST — Explained

Under the Reverse Charge Mechanism (RCM), the GST liability shifts from the supplier to the recipient. This applies to purchases from unregistered dealers (for specific goods/services), notified services such as Goods Transport Agency (GTA), legal services from advocates, and import of services. The buyer must self-assess and pay the GST directly to the government.

RCM vs normal charge — key differences

In a normal GST transaction, the supplier collects GST and deposits it. Under RCM, the supplier does not charge GST — the buyer pays it directly. However, registered businesses can claim Input Tax Credit (ITC) on RCM GST paid, making the net effective cost zero for most B2B transactions. The ITC, however, cannot be claimed in advance — payment must first be made.

Frequently asked questions

What is Reverse Charge Mechanism (RCM) in GST?
Under RCM, the liability to pay GST shifts from the supplier to the recipient (buyer). It applies to: (1) purchases from unregistered suppliers above threshold, (2) notified goods and services like GTA, legal services from advocates, import of services, and (3) e-commerce operator supplies.
Can I claim ITC on RCM GST paid?
Yes, ITC on RCM can be claimed in the same tax period as the payment is made, provided the supply is used for business. However, ITC on RCM cannot be claimed in the same return period where payment is due but not yet made.
Is RCM applicable on all unregistered purchases?
RCM on unregistered purchases applies only to specified goods and services listed under Section 9(4). Not all unregistered purchases attract RCM. Always check the specific HSN/SAC to confirm applicability.