# Fundamentals of TDS and TCS

## 1. Treatment of GST in TDS/TCS Computation

Rule for TDS:

TDS shall be deducted on the amount without including GST, if GST is shown separately in the bill/invoice.
If GST is not shown separately, TDS is deducted on the gross amount (including GST).

Rule for TCS:

TCS shall be collected on the amount including GST, subject to certain exceptions.

> Key contrast: TDS excludes GST (when separately shown); TCS generally includes GST.

## 2. Timing of TDS Deduction (General Rule)

TDS is required to be deducted at the earlier of the following:

Event	Description
(i) Payment	At the time of actual payment to the payee
(ii) Credit	At the time of crediting the payee's account

Principle: Whichever is earlier.

## 3. Exceptions – TDS at the Time of Payment Only

In the following cases, TDS is deducted only at the time of payment (credit-stage deduction does NOT apply):

Sl. No.	Nature of Payment	Section
a	Salary	192
b	EPF Premature Withdrawal	192A
c	Dividend	194
d	Winnings from lottery/crossword/games	194B, 194BB, 194BA
e	Maturity of Life Insurance Policy	194DA
f	Cash withdrawal from Bank	194N
g	Compensation on Compulsory Acquisition	194LA

## 4. Application of Surcharge and Health & Education Cess (HEC)

### Case A – Payee is a Resident:

TDS rate shall NOT be increased by surcharge and HEC.
Exception: TDS on Salary (Sec 192) — surcharge & HEC ARE added because tax is computed on estimated total income.

### Case B – Payee is a Non-Resident (NR):

TDS rate shall be increased by applicable surcharge and HEC.

### Case C – TCS:

Buyer is Resident → Fixed Rate (no surcharge / HEC).
Buyer is Non-Resident → Rate + Surcharge + HEC.

## Summary Mnemonic

Resident payee = Plain TDS rate (except salary).
Non-resident payee = Loaded rate (rate + SC + HEC).
TDS on listed items = Payment-stage only (no credit-stage trigger).

Worked example

### Example 1

Example 1 – GST in TDS:

A professional raises an invoice of ₹1,00,000 + ₹18,000 GST = ₹1,18,000 (GST shown separately).

TDS u/s 194J @ 10% is deducted on ₹1,00,000 (excluding GST) = ₹10,000.
If the bill simply read ₹1,18,000 (GST not separately shown), TDS would have been ₹11,800.

### Example 2

Example 2 – Timing trigger:

Mr. A credits ₹50,000 contract charges to Mr. B's account on 25 March 2026 but actually pays on 10 April 2026.

TDS u/s 194C must be deducted on 25 March 2026 (credit is earlier than payment).

### Example 3

Example 3 – Salary payment-stage exception:

Employer accrues March salary on 31 March but pays on 7 April. TDS u/s 192 is deducted on 7 April (payment date) because salary follows the payment-only rule.

### Example 4

Example 4 – Surcharge on Non-Resident:

Interest of ₹60 lakh paid to an NRI bondholder. TDS rate of 20% will be increased by applicable surcharge + 4% HEC. For a Resident, only flat 10% (u/s 193) would apply.

⚠️ Common exam mistakes

Including GST in the TDS base when GST is separately shown in the invoice – it should be excluded.
Excluding GST from TCS base – TCS is generally collected on amount INCLUDING GST.
Forgetting the payment-only exceptions (Salary, EPF, Dividend, Winnings, LIP maturity, 194N, 194LA) and deducting TDS at credit stage.
Adding surcharge/HEC on TDS to a resident payee (except salary) – this is incorrect; rate is flat.
Failing to add surcharge & HEC for non-resident payees – the rate MUST be grossed up by SC + HEC.
Confusing 'earlier of payment or credit' with 'later of' – TDS is always on EARLIER event.

Reference:

Now that you've read this — what's next?

Move from understanding → mastery in 3 clicks. Each option below picks up from this lesson's topic.

🔥 Drill 5 Qs on this → ✍️ Adaptive practice →

Basics of TDS/TCS - GST treatment, timing and exceptions

Worked example

⚠️ Common exam mistakes