GST and TDS Compliance: How to Manage Monthly Business Invoices

Each month, your business generates invoices.

Customers are invoiced. Vendors are paid. Workers are paid. Expenditures are tracked. You need to calculate GST somewhere in the middle, and in some cases, TDS will be deducted from processed payments.

For young businesses, the whole process gets complicated quickly.

It is possible to issue your customer a GST invoice while they receive payment with TDS already factored in. It is possible to charge GST on the service but be uncertain whether TDS applies to the payment in question. Your accounting records can show one figure, while your bank will have a completely different one.

This leads to confusion on the part of businesses.

GST and TDS are not the same thing and have different processes, applications, and accounting practices.

Thus, if your business generates invoices every month, it is essential to understand how both taxes interact with each other.

Our guide describes what businesses need to know about GST and TDS compliance, the procedure for issuing invoices, the difference in calculating GST and TDS, what should be reconciled, and what mistakes should be avoided.

Important: GST and TDS applicability depends upon the nature of the transactions, parties involved, registration, thresholds, mode of payment and other facts. This article is meant to provide a practical understanding and not transaction-based tax advice.

What Is the Difference Between GST and TDS?

Let us start with knowing what GST and TDS are used for.

GST is a tax on the supply of goods and services

GST is mostly imposed by the supplier on the taxable supply of goods or services according to the GST regulations.

When there is a taxable supply made by the registered entity, the invoice will show:

Taxable value + GST = Invoice value

And the supplier will receive the tax from the customer according to the GST regulations.

TDS is tax deducted at source

TDS is different from the above.

In TDS, it is not the supplier who collects the tax from the customer, but rather the person paying the money deducts the tax from the specified payment and pays it to the government on behalf of the receiver.

TDS regulations are applied to some specific payments like professional fees, commission/brokerage, rent and others, depending on the provisions and threshold.

Therefore, GST applies to the supply; TDS applies to the payments/earnings, So businesses cannot deduct TDS from GST and treat them alike.

What Is The Mechanism of GST In Business Invoices?

In the case of a taxable invoice issued by the business, there has to be the correct GST mechanism incorporated into that invoice.

The GST mechanism will depend on the transaction and can include:

Taxable value
Applicable GST rate
CGST
SGST
IGST
GSTIN of the supplier
GSTIN of the recipient, if any
Invoice number
Invoice date
HSN/SAC code
Place of supply, if applicable
Other prescribed invoice details

Where the taxpayers are registered, the details of outward supply are included in the GST return filing process. GSTR-1 has details of outward supplies and can be filed on a monthly basis or, wherever applicable, a quarterly basis.

Thus, your invoice is not just a demand for payment. It forms part of the bigger GST records.

What Are the Details That the GST Compliant Business Invoice Must Have?

To start with, the GST-compliant business invoice must be created using the right details.

According to the nature of transactions, businesses will have to check:

1. Correct GSTIN

In B2B transactions, the GSTIN of the recipient must be validated along with their registration status.

As per the GST Portal, taxpayers must validate the GSTIN of the recipients while submitting their invoices.

2. Correct invoice number

The invoice numbers must be provided using a consistent format. As per the GST Portal, no GSTIN can have duplicate invoice numbers during a financial year, and there are certain prescribed characteristics for the invoice numbers.

3. Correct taxable value

Before computing the GST amount, the taxable value of the goods/services must be known correctly.

4. Correct GST rate

The GST rate will depend on the type and classification of the goods or services.

5. Correct tax type

Based on the transaction nature, it may be any of the following two cases:

CGST + SGST/UTGST

IGST

6. HSN or SAC details

There should be proper HSN/SAC details.

How Does TDS Apply to Business Payments?

TDS will become applicable where your business makes some specific payments.

Some examples would be:

Payments related to professional services
Payments made for contractual works
Payments made for commissions/ brokerage
Payments towards rent
Payments made in respect of interest
Payments in respect of some other specified payments

Specific TDS provisions and rates will vary depending upon the nature of payment, payee and other qualifying criteria.

This is because it is not appropriate to have a generalised rule like: “TDS is required to be paid on all invoices from vendors.”

It is wrong.

Each payment has to be checked against specific TDS provisions. According to the Income Tax Department, TDS is deducted at source from the specified income of the person and then is deposited into the government account on behalf of the recipient.

Does TDS Become Applicable in Case of Receiving a GST Invoice?

This is one of the most frequent questions raised by organizations.

The answer is:

The presence of GST in an invoice does not automatically mean applicability of TDS.

Both GST and TDS need to be looked at in accordance with the corresponding legislation.

For instance, consider a case where an organization receives a GST invoice for professional services:

Professional service charges: ₹1,00,000

GST: ₹18,000

Invoice amount: ₹1,18,000

Should TDS become applicable to the payment, the organization will have to decide on the correct TDS treatment of the transaction in accordance with the corresponding rules.

The accounting treatment should properly reflect the following:

Expense/service charges
GST
TDS deduction
Net amount to be paid to the vendor

Such calculations cannot be assumed only from the invoice amount.

GST and TDS Calculation: Example

Take an example of a company receiving the bill for professional services rendered.

Invoice

Particular
Amount
Professional charges
₹1,00,000
GST @ 18%
₹18,000
Total amount of invoice
₹1,18,000

Assuming now that there was a TDS liability on that payment on a hypothetical basis.

In case there is a TDS liability of ₹10,000 on that, the treatment would be as under:

Gross invoice value: ₹1,18,000

Deduction of TDS: ₹10,000

Amount to vendor net of TDS: ₹1,08,000

₹10,000 is not merely a discount on the invoice value from the supplier.

It is a tax deduction made on behalf of the government by the payer from the payee's due.

Would TDS Cut Down GST Liability?

Companies must take great care in this regard.

It would be incorrect to consider TDS merely as a deduction from the taxable value for GST.

GST and income-tax TDS work within separate regimes.

For accounting reasons, a company might have to consider the following information:

Gross invoice amount
GST
TDS amount
Net payment amount
TDS liability
GST liability, input tax credit, etc.

What If the Customer Withholds TDS from the Payment of Your Invoice?

This is how things would work out in reverse.

Say your firm prepares an invoice:

Service cost: ₹2,00,000

GST: ₹36,000

Invoice cost: ₹2,36,000

If the customer is supposed to withhold TDS from the payment, the net payment that you will get will probably be less than the invoice cost.

But this doesn’t necessarily mean that the customer is underpaying you. Some portion of that money may have been withheld as TDS and paid into the government account on your behalf.

In such a case, you need to ensure that your books clearly show the following:

Invoice issued
TDS payable/collection
Net amount deposited in bank

This is critical when reconciling entries.

Importance of GST and TDS Reconciliation

Your invoices may be genuine, but you might find that your books do not reconcile.

Why? Since there are various documents that are used.

In the case of GST, these documents may be:

Sales Invoices
Purchase Invoices
Credit Notes
Debit Notes
GST Returns
Input Tax Credits
E-Invoices, if any
E-Way Bills, if any

In case of TDS, the following documents may come into play:

Payments made to Vendor
TDS Deduction
TDS Payable
TDS Deposit
TDS Return
TDS Certificate
TDS Credits shown in Recipient's Name

This explains the importance of GST and TDS reconciliation within an accounting process.

New GST Changes for Businesses to Know About: 57th GST Council Meeting

Compliance with the GST system cannot be seen as static. While businesses deal with their invoices and other transactions, changes in the GST structure could affect these activities.

The 57th GST Council meeting, held on 8 October 2026, made some recommendations regarding processes and compliance that are expected to make GST compliance easier.

These are some of the important points businesses must know about:

GST Refunds that are Faster and More Automated

One of the major recommendations includes the automation of GST refunds. In cases where eligible refund claims pertain to zero-rated supplies and inverted duty structure, a 90% provisional sanction on the claim amount shall be made using the risk-based system approach. The proposed issuance of either an acknowledgement or deficiency memo will also be reduced from 15 to 10 days.

This may enable businesses to get access to working capital easily and eliminate any unnecessary manual intervention in the process of refunding.

ITC and Reconciliation Improvements

Some of the improvements that are being recommended by the Council pertain to the Input Tax Credit (ITC) and reconciliation. Among these improvements are enhancements in the Invoice Management System (IMS) that allow for acceptance, rejection, and retention of some inward supply documents pending preparation of the ITC statement of the recipient.

There is also a mechanism for resolving mismatches of liability and ITC which is scheduled to become operational starting from April 2027, provided that all the necessary processes have been undertaken.

For companies, this only adds to the significance of having accurate billing records and reconciliation.

Ease of Compliance and Reduced Thresholds for Specific Proceedings

The Council has recommended that the threshold be set at ₹10,000 for issuance of show cause notices for GST cases, taking into consideration the aggregate CGST, SGST/UTGST, IGST, and cess amount. The Council has also recommended lowering the general penalty from ₹25,000 to ₹10,000 under the provision.

Further, the Council has recommended doing away with provisions related to arrest and the threshold of ₹1 crore to ₹5 crore under the provision.

Implications of the New GST Changes for Businesses

Based on the above recommendations, GST compliance is likely to move towards an automated, reconciled and system-driven system. In other words, GST compliance should not be considered a task to be performed when a tax return needs to be filed.

Businesses should continue to:

Maintain correct sales and purchase invoices
Perform GST reconciliation periodically
Maintain ITC at invoice level
Maintain refund claims and documentation
Maintain alignment between the accounts and GST system
Check changes in GST regulations, notifications and filing requirements

Notably: The above-mentioned measures are recommendations of the 57th GST Council meeting. The applicability of such measures would actually depend on the amendments made in law, regulations, notifications and circulars by the government.

Monthly GST and TDS Compliance Checklist

Businesses that issue invoices every month can refer to the checklist below.

Step 1: Check All Sales Invoices

Ensure:

Customer details
GSTIN
Invoice number
Date of the invoice
Description
HSN/SAC code
Taxable value
GST percentage
GST amount
Total invoice value

Step 2: Check Purchase and Vendor Invoices

Look at:

Vendor GSTIN
Invoice information
GST applicable
Expense type
Applicability of TDS
Documents supporting the invoice

Do not assume that all payments to vendors are liable for TDS.

Step 3: Identification of TDS Eligible Payment

Before any payment, find out:

Nature of payment
Nature of recipient
Eligible threshold
Eligible TDS section
Eligible TDS rate
Whether PAN is available
Date of credit/payment

The TDS regime applicable to payments/credits from or on 1 April 2026 will be as per the Income-tax Act, 2025. According to the Income Tax Department, the new Act incorporates the previous TDS provisions into Sections 392 and 393, where Section 393 relates to certain non-salary payments.

TDS compliance in 2026: Points that businesses must know

This will become relevant for those who are handling the accounting of their business in the present financial year.

As per the Income-tax Act, 2025, the TDS provisions for relevant payments/credits will come into effect from 1 April 2026.

According to the Income Tax Department, the following conditions apply to the above situation:

Payments/credits made till 31 March 2026 are covered under the Income-tax Act, 1961.
Payments/credits made from 1 April 2026 onwards are covered under the Income-tax Act, 2025.
Provisions of the TDS have been recast under the new act.
For transactions happening post-1 April 2026, it is essential to quote the corresponding table item of Section 393 and not the section numbers.

This transition is important for businesses because old accounting templates, TDS mappings and internal checklists may still refer to the previous section numbers.

The Income Tax Department has specifically warned that using old section numbers for transactions covered by the new framework may cause system-level validation errors.

For businesses, this means the accounting process should be updated, not just the tax return at the end of the period.

When Must TDS Be Deposited?

The deduction of TDS by the organization must be deposited with the government within the given timelines.

According to the Income Tax Department, under the current policy regime, TDS is deposited mostly by the 7th of the month following the deduction date, except in certain cases. In case of deductions made in March, the general date is 30 April. These timelines have been continued by the Income Tax Rules, 2026.

Organizations should therefore make provisions for TDS deposits each month. One should not delay making the decision on the correct deduction of TDS till filing returns.

How Should Businesses Maintain GST and TDS Records Monthly?

The monthly process that businesses should adopt could be broken down into 4 stages.

Stage 1: Invoice

Maintain records of:

Sales invoice
Purchase invoice
Credit note
Debit note
Others

Stage 2: Tax Analysis

For every transaction where it is applicable, determine:

GST Treatment
TDS Treatment
Tax rate
Threshold
Documentation Needed

Stage 3: Reconciliation

As against:

Books and bank reconciliations
Sales ledger vs GST
Purchase ledger vs GST
Vendor payments vs TDS
TDS ledger vs Deposits

Stage 4: Reporting

Filing of:

GST returns
TDS payments
TDS reports
Book Entries
Management reports

It becomes a continuous compliance cycle rather than a last-minute exercise.

When Should You Think About Outsourcing Your GST and TDS Compliance?

You can handle GST and TDS internally if you have few transactions and the expertise.

However, outsourcing could be considered when:

Your invoices are growing in number
You have multiple GST registrations
Payments to vendors have gotten complicated
TDS requirements are constantly changing
Reconciliation is consuming too much of your management time
GST / TDS inconsistencies are frequent
You do not have any specialized accounting expertise
The owner is handling all of the taxation himself
Closing happens late every month

Outsourced Accounting Services will help you develop a systematic approach for bookkeeping and reconciliation.

This will depend on what is best suited for your business. The point is not to outsource everything.

The aim is to get the correct financial and compliance work done well and timely.

Questions to Ask Your Accountant

If you think you need help with GST and TDS compliance, here are some questions to ask:

Are GST and TDS checked every month?
How is data at the invoice level stored?
How are GST reconciliations done?
How are TDS-applicable payments recognized?
Will there be reconciliation of your bank and vendors' ledgers?
Who checks the work before filing?
How is the deadline for compliance checked?
How are discrepancies communicated?
How would changes in laws of tax be included?
Which reports would be provided to management every month?

The best accounting support is not just filing your tax return by a person.

It is a system of keeping your records right throughout the whole month.

Conclusion: GST and TDS Have to Be Handled Together

Invoices issued each month need more than just the addition of GST. There are other things involved, like customer receipts, vendor payments, TDS, GST handling, and record-keeping.

These include:

Issuing appropriate invoices.
Correct recording of transactions.
Applying TDS.
Reconciliation of GST and TDS.
Meeting payment and filing deadlines.
Reviewing each month figures.

It becomes especially necessary in 2026 when the business will be getting acquainted with Income-tax Act, 2025 and the corresponding transactions beginning 1st April, 2026.

Good GST and TDS compliance is fundamentally all about consistency. Since your business will be managing the invoices, payments, and tax deduction process on a regular basis each month, compliance will become part of the process rather than an afterthought.

This is where the help of professional Business Accounting Services becomes useful, because they can transform your complex system of invoices, payments, and taxes into a monthly process.

FAQs

1. What is meant by GST & TDS compliance?

GST and TDS compliance relate to proper handling of the GST liabilities pertaining to the taxable supplies and the TDS liabilities relating to specified payments. It would include proper calculation, accounting, payment and reporting of the same.

2. Is GST applicable to all business invoices?

No. Applicability of GST would depend on various issues such as nature of supply, registration, place of supply, etc.

3. Is TDS applicable to all business payments?

No. TDS will apply only to specified payments under certain provisions and conditions.

4. Can GST and TDS apply to the same transaction?

Yes. The transaction may have GST on the underlying supply and TDS on the specified payment.

5. Does the TDS affect the GST on the invoice?

The two have different tax structures. Hence, it may not be correct for businesses to consider the TDS as a deduction from the GST charged.

GST and TDS Compliance: How to Manage Monthly Business Invoices

In this Article

What Is the Difference Between GST and TDS?

What Is The Mechanism of GST In Business Invoices?

What Are the Details That the GST Compliant Business Invoice Must Have?

How Does TDS Apply to Business Payments?