GST registration for consultancy services becomes mandatory once the annual turnover crosses ₹20 lakh, or earlier when specific supply conditions are involved. Consultants and advisory professionals across India must understand GST rates for consultancy services before they raise their first invoice.
Whether someone provides management advice, IT strategy, financial guidance, or marketing consulting, GST applies to their services at a standard rate of 18%. Understanding the rate, registration threshold, SAC code, and filing obligations helps consultants avoid penalties and stay legally compliant.
This guide covers everything a consultant needs to know, including GST rates, SAC codes, registration rules, input tax credit eligibility, export provisions, and return filing requirements.
Key Takeaways
- GST for consultancy services applies at a standard rate of 18% across every advisory and professional category in India.
- A consultant must register for GST once the annual turnover crosses ₹20 lakh, or ₹10 lakh in special-category states.
- Certain cases demand mandatory registration regardless of turnover, such as RCM liability, supply through e-commerce operators, and non-resident status.
- Each consultancy type carries a specific SAC code under the 9983 series, which the consultant must mention correctly on every invoice.
- Intra-state supply attracts 9% CGST and 9% SGST, while inter-state supply attracts 18% IGST on the invoice value.
- Export of consultancy services to foreign clients stays zero-rated, provided the consultant files a valid LUT and receives payment in foreign exchange.
- A registered consultant can claim Input Tax Credit on genuine business expenses but not on personal items, food, or blocked credit categories.
- Every registered consultant must file GSTR-1 and GSTR-3B regularly, along with GSTR-9 when turnover crosses ₹2 crore.
- Using the correct SAC code and filing returns on time reduces the risk of GST notices and ITC disputes.
What are Consultancy Services Under GST?
Consultancy services refer to advisory, knowledge-based, and guidance services that a person or firm provides to clients in exchange for a fee. The GST law classifies these services as taxable supplies under Section 7 of the CGST Act, 2017. In India, the GST rate for consultancy services remains 18% across most professional and advisory categories.
Standard GST Rate for Consultancy Services
The GST rate for consultancy services stands at 18% across all categories of advisory and professional work in India. This rate applies uniformly whether the consultant works independently or through a registered firm. The tax component varies based on the type of supply, as explained below:
- Intra-state Supply (consultant and client in the same state): 9% CGST and 9% SGST, which totals 18%.
- Inter-state Supply (consultant and client in different states): 18% IGST charged on the invoice value.
- Export of Services with a Valid LUT: 0% GST, since the supply qualifies as zero-rated under the IGST Act.
Suppose a management consultant raises an invoice of ₹50,000 for consultancy services provided within the same state. The GST calculation will appear as follows:
- Consultancy fee: ₹50,000
- CGST at 9%: ₹4,500
- SGST at 9%: ₹4,500
- Total GST payable: ₹9,000
- Total invoice amount: ₹59,000
If the consultant provides services to a client in another state, the consultant charges 18% IGST instead of CGST and SGST separately.
Types of Consultancy Services that Attract GST
GST for consultancy services applies broadly across every professional and advisory category in India. The following service types fall under taxable consultancy for GST purposes:
- Management consultancy covers strategic planning, business restructuring, and organizational advisory services.
- IT consultancy includes software implementation advice, technology strategy, and systems-related advisory.
- Financial consultancy covers investment advisory, valuation services, and financial planning guidance.
- Legal consultancy includes general legal advisory services, excluding court representation by lawyers.
- Marketing consultancy covers brand strategy, digital marketing advisory, and campaign planning services.
- HR consultancy includes talent strategy, workforce planning, and organizational development advisory.
- Startup advisory covers business model guidance, fundraising strategy, and regulatory compliance advisory.
- Engineering consultancy includes project feasibility studies, design advisory, and technical guidance.
GST Registration for Consultancy Services: Who Must Register?
Not every consultant needs to apply for GST registration from day one. The registration obligation depends on annual turnover and the nature of supply. Consultants must assess their position against the prescribed thresholds before determining whether registration is mandatory or voluntary.
GST Registration Threshold for Consultancy Services
The GST limit for consultancy services depends on the state where the consultant operates. The table below shows the applicable turnover thresholds for GST registration for consultants:
| Category of Consultant | Annual Turnover Threshold for GST Registration |
| Consultants operating in normal states | ₹20 lakh per financial year |
| Consultants operating in special category states such as Manipur, Mizoram, and Nagaland. | ₹10 lakh per financial year |
Once turnover crosses the applicable threshold during a financial year, the consultant must apply for GST registration within 30 days. Continuing to provide services without registration after crossing the threshold attracts a penalty of 10% of the tax due, subject to a minimum of ₹10,000.
Cases When GST Registration Becomes Mandatory Even Below the Threshold
GST rules for consultants require mandatory registration in certain situations regardless of turnover:
- E-commerce Platforms: Consultants who supply services through e-commerce operators liable to collect TCS must register, even if their turnover stays below the threshold.
- Non-Resident Taxable Persons: Any non-resident consultant providing services in India must obtain GST registration, regardless of the turnover earned.
- Casual Taxable Persons: A consultant who occasionally supplies services in a state where they do not hold a fixed place of business must register before starting the activity.
- Persons Required to Deduct or Collect Tax: Consultants who must deduct TDS under GST (such as government consultants) must register under the law without considering the turnover.
Cases Where GST Registration is Optional but Recommended
The following situations do not force a consultant to register under GST, but voluntary registration brings real benefits in many cases:
- Interstate Supply Below ₹20 Lakh: As per Notification No. 10/2017 – IGST (Rate), small service providers making interstate supplies below ₹20 lakh are exempt from compulsory registration. However, the consultant may still register voluntarily to serve corporate clients more smoothly.
- Voluntary Registration: Consultants operating below the threshold can register voluntarily to claim input tax credit on business expenses and build credibility with corporate clients.
How Can Individual Consultants Apply for GST Registration in India?
GST registration for individual consultants follows the same online process that applies to firms and companies in India. The entire procedure takes place on the GST portal and requires the following steps:
- Step 1: Visit the GST portal at gst.gov.in and click on “New Registration” under the Services tab.
- Step 2: Fill Part A of Form GST REG-01 with the applicant’s PAN, mobile number, and email address. Verify the contact details through the OTP sent by the system.
- Step 3: Complete Part B of Form GST REG-01 with full business details, including the nature of consultancy services, principal place of business, and bank account information.
- Step 4: Upload the required documents, including PAN card, Aadhaar card, proof of business address, photograph, and a cancelled cheque or bank statement.
- Step 5: Submit the application on the portal and note down the Application Reference Number (ARN) for tracking purposes.
- Step 6: The GST officer reviews the application and issues the GST registration certificate (Form GST REG-06) within 7 working days.
The consultant receives a 15-digit GSTIN (Goods and Services Tax Identification Number) upon approval, which they must mention on every invoice raised to clients.
SAC Codes Across Different Consultancy Categories with GST Rates
The GST rate for consulting services remains 18% across every category, but each service type carries a specific SAC code that must appear on the invoice. The table below lists the verified SAC codes and GST rates for major consultancy types:
| Consultancy Type | SAC Code |
| Management consultancy | 998311 |
| Financial advisory | 998312 |
| IT consultancy | 998313 |
| IT design and development | 998314 |
| Engineering consultancy | 998346 |
| Legal consultancy | 998213 |
| Marketing and advertising consultancy | 998366 |
| HR consultancy | 998519 |
| Environmental and technical consultancy | 998319 |
| General business consulting | 9983 (broad category) |
| Educational and training consultancy | 999293 |
How to Calculate GST on Consultancy Services in 2026?
Calculating GST on a consultancy invoice is straightforward once the consultant knows the applicable rate and the nature of the supply. The formula is the same regardless of the consultancy category.
GST Calculation: Intra-State Supply
When both the consultant and the client are located in the same state, the consultant charges CGST and SGST separately. The table below shows a sample calculation for a consultancy fee of ₹1,00,000:
| Invoice Component | Amount |
| Consultancy fee (base value) | ₹1,00,000 |
| CGST at 9% | ₹9,000 |
| SGST at 9% | ₹9,000 |
| Total GST (18%) | ₹18,000 |
| Total invoice amount payable by the client | ₹1,18,000 |
GST Calculation: Inter-State Supply
When the consultant and client are located in different states, IGST applies at 18% on the full invoice value. The total tax amount remains the same, but the tax type changes from CGST plus SGST to a single IGST charge. For a consultancy fee of ₹1,00,000, IGST at 18% amounts to ₹18,000, making the total invoice ₹1,18,000.
Input Tax Credit for GST-Registered Consultants in India
One of the significant benefits of GST registration for consultancy services is the ability to claim Input Tax Credit on business-related purchases. ITC reduces the consultant’s overall GST liability by offsetting the GST paid on eligible expenses against the GST collected from clients.
Expenses on Which Consultants Can Claim ITC
A GST-registered consultant can claim ITC on all business-purpose expenses where the supplier has charged GST and filed their returns. The following business expenses qualify for ITC:
- Laptop, desktop, and computing equipment purchased exclusively for business use.
- Internet, broadband, and communication services used for consultancy operations.
- Office rent paid to a GST-registered landlord who issues a proper tax invoice.
- Software subscriptions, cloud services, and professional tools are used in client delivery.
- Legal, audit, and professional service fees paid to GST-registered service providers.
- Stationery, printing costs, and business communication expenses are directly related to work.
Expenses Where ITC Is Not Available as Per GST Rules
GST rules for consultants restrict ITC on certain categories of expenses regardless of the business context. Consultants cannot claim ITC on the following:
- Personal expenses that are not directly related to the provision of consultancy services.
- Motor vehicle expenses, unless the vehicle is directly used for providing taxable consultancy services.
- Food, beverages, outdoor catering, and club membership fees are under the blocked credit provisions.
- Any expense where the supplier has not filed their GST return and the credit is absent from GSTR-2B.
GST Rules on Export of Consultancy Services to Foreign Clients
Indian consultants providing services to clients located outside India must understand how GST treats such transactions. The GST framework provides a significant benefit for export-oriented consultants through the zero-rating mechanism.
Zero-Rating of Export Consultancy Services
The export of consultancy services qualifies as a zero-rated supply under the IGST Act. This means the consultant does not charge any GST on invoices raised to foreign clients, provided the supply meets all conditions for export of services. A supply qualifies as an export of services only when all five conditions below are satisfied:
- The supplier of the service is located in India.
- The recipient of the service is located outside India.
- The place of supply is outside India as determined by the IGST place of supply rules.
- The payment for the service is received in convertible foreign exchange or Indian rupees as permitted by the RBI.
- The supplier and recipient are not merely two establishments of the same legal entity.
LUT Filing for Consultants Serving Foreign Clients
Consultants who regularly serve foreign clients must file a Letter of Undertaking (LUT) on the GST portal before raising their first export invoice in each financial year. Filing an LUT in Form GST RFD-11 allows the consultant to issue zero-rated invoices to foreign clients without collecting any IGST.
Without a valid LUT, the consultant must charge 18% IGST on all export invoices and then claim a refund through the GST refund process. Filing LUT is free of cost and takes effect immediately on submission.
GST Compliance Requirements for Consultants
GST registration creates ongoing compliance obligations for every consultant. These obligations include periodic return filings, invoice maintenance, and payment of GST collected from clients. The table below summarizes the key returns that consultants must file after GST registration:
| GST Return | Purpose | Due Date | Applicability |
| GSTR-1 | Report all outward sales invoices raised during the period | 11th of the following month (monthly filers) | Consultants with turnover above ₹5 crore file monthly; others file quarterly under QRMP |
| GSTR-3B | Pay GST due and file a summary return for the period | 20th of the following month | Consultants under the regular scheme must file monthly returns, while eligible consultants under the QRMP scheme may file quarterly returns |
| GSTR-9 | Annual return consolidating all transactions for the year | 31 December of the following financial year | Mandatory for consultants with turnover above ₹2 crore |
Penalties for GST Non-Compliance
Consultants who miss return filing deadlines or fail to register under GST face financial penalties under the GST Act. The key penalties that apply to consultants are as follows:
- Late filing of GSTR-3B attracts ₹50 per day (₹25 CGST and ₹25 SGST), capped at ₹5,000 per return.
- Late filing of a nil GSTR-3B attracts ₹20 per day (₹10 CGST and ₹10 SGST), capped at ₹500 per return.
- Not registering under GST despite crossing the ₹20 lakh threshold attracts a penalty of 10% of the tax due, with a minimum of ₹10,000.
- In cases involving fraud, wilful misstatement, or suppression of facts, penalties may extend up to 100% of the tax amount due under Section 74 of the CGST Act.
GST for Individual Consultants in India
GST for individual consultants in India follows the same rules that apply to firms and companies. The GST registration threshold, GST rate for consultancy services, SAC code requirements, and return filing obligations remain the same for individual consultants.
Consultants with annual taxable turnover above the prescribed GST threshold must register under GST and charge 18% GST on taxable consultancy invoices. GST for consultants applies to the total invoice value billed during the financial year before TDS deductions.
Freelance consultants can read our detailed guide on GST registration for freelancers to understand registration rules, GST rates, and compliance requirements in detail.
Common GST Mistakes Made by Consultants and How to Avoid Them
Many consultants make avoidable errors that result in demand notices, ITC reversals, or penalties. The table below identifies the most frequent GST mistakes among consultants, along with the correct approach to prevent each one:
| Common Mistake | Consequence | Correct Approach |
| Using the wrong SAC code on invoices | GSTR-2B mismatch and scrutiny notice from GST authorities | Select the SAC code for consultants that most specifically describes the service provided. |
| Continuing to provide services without GST registration after crossing ₹20 lakh | Penalty of 10% of the tax due and invalid invoices for clients | Apply for registration within 30 days of crossing the turnover threshold. |
| Charging CGST and SGST on invoices raised to clients in other states | Incorrect ITC for the client and potential tax demand on the consultant | Always charge IGST on interstate invoices and verify the client’s state of registration. |
| Serving foreign clients without filing LUT | Loss of zero-rating benefit and obligation to charge 18% IGST | File LUT in Form GST RFD-11 at the start of each financial year before the first export invoice. |
| Claiming ITC on personal expenses or blocked credit items | ITC reversal with interest during GST audit or assessment | Restrict ITC claims to business-purpose expenses and verify credits against GSTR-2B monthly. |
Overall, GST compliance plays an important role in maintaining smooth consultancy operations and avoiding unnecessary legal or financial issues. Consultants who understand GST rates, SAC codes, registration thresholds, and filing requirements can manage their tax obligations more accurately and serve clients more professionally.
If you need support with GST registration for consultancy services, proper SAC code selection, or GST return filing, RegisterKaro can help you manage the process smoothly. Our experts assist consultants with registration, compliance, LUT filing, and GST documentation requirements.
Contact us today to manage your consultancy GST compliance accurately and avoid unnecessary penalties or filing errors!
