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Sindh Revenue Board Registration

SRB Registration Pakistan: Complete Sindh Sales Tax Guide

Your FBR NTN Does Not Cover Sindh Sales Tax

If your business provides services in Sindh and your annual turnover has crossed Rs. 10 million – or your B2B clients are already asking for your SRB number before releasing payment – you have a provincial tax obligation that your federal registration does not touch. SRB registration is a completely separate legal requirement under the Sindh Sales Tax on Services Act, 2011. It is administered by the Sindh Revenue Board, not the Federal Board of Revenue, and one does not substitute for the other.

We handle SRB registration from start to finish – document review through certificate delivery – for Karachi-based businesses, freelancers, startups, and service providers across Sindh.

Businesses Registered
200+ Sindh Businesses
Local Expertise
5+ Years Compliance
Before Submission
100% Docs Reviewed

Why SRB Registration Confuses Most Business Owners in Karachi

This confusion is genuinely common. The overlap between federal and provincial tax systems in Pakistan catches even experienced business owners off guard, and the SRB registration requirement often goes unnoticed until a client flags it or a notice arrives.

Here are the situations we hear about most often:

“I have an NTN – isn’t that enough?”

This is the most common misconception, and also the most costly one. Your NTN comes from the Federal Board of Revenue and covers federal tax obligations. The Sindh Revenue Board is a completely separate authority. One registration does not satisfy the other – full stop.

“I don’t know if my turnover qualifies”

Mandatory registration kicks in at Rs. 10 million in annual taxable services turnover. That said, many businesses benefit from registering voluntarily well before that threshold – particularly if they work with corporate clients who expect it.

“I’ve been operating for years without SRB registration – am I already in trouble?”

Possibly. If your turnover has crossed the threshold and you have not registered, you are technically in default. Voluntary registration and catch-up compliance are possible in most cases, and acting sooner rather than later limits your exposure significantly.

“My clients are asking for my SRB number and I don’t have one”

This is a practical problem that affects invoicing, payment processing, and your standing with corporate clients. Without an SRB number, you cannot issue a compliant tax invoice to a registered business in Sindh. It creates friction in relationships you cannot afford to lose.

“I tried to register myself but gave up”

The SRB e-portal is workable but far from straightforward. Document errors cause rejections. Physical verification requirements catch people off guard. Many clients come to us after a failed attempt on their own.

Did you know?

Issuing an invoice without your SRB registration number carries a penalty of Rs. 10,000 per invoice. The violations accumulate with every invoice you issue.

What is SRB Registration and Why is it Mandatory?

Quick Answer

SRB registration is the process of enrolling a service-providing business with the Sindh Revenue Board under the Sindh Sales Tax on Services Act, 2011. It is mandatory for businesses with annual taxable turnover exceeding Rs. 10 million. It is separate from FBR registration and applies specifically to services rendered within Sindh province.

The Sindh Revenue Board was established to administer and collect sales tax on services provided within Sindh. Its legal authority comes from the Sindh Sales Tax on Services Act, 2011, which defines which services are taxable, who must register, what rates apply, and what penalties follow from non-compliance.

Think of it this way

Think of the FBR as the national tax authority and the SRB as Sindh’s own, separate tax department. Having an NTN but no SRB registration is like having a driver’s license but no car registration – you are only half-compliant in Sindh. They do not replace each other, and in the eyes of the SRB, operating without provincial registration is a violation regardless of how current your federal filings are.

FBR vs. SRB – A Direct Comparison

Category FBR
Federal Board of Revenue
SRB
Sindh Revenue Board
Governing Body Federal Board of Revenue (FBR) Sindh Revenue Board (SRB)
Jurisdiction Federal – nationwide Provincial – Sindh only
Tax Type Income tax, GST on goods Sales tax on services
Applicable Businesses All taxpayers Service providers in Sindh
Registration Issued NTN (National Tax Number) SRB Registration Number
Filing Portal IRIS (FBR) SRB e-portal
Monthly Filing Varies by tax type SRB-1 Form, due 15th of every month

Beyond mandatory compliance, SRB registration lets businesses issue proper tax invoices, charge sales tax to clients, and offset input tax paid on business purchases against output tax owed to the SRB. For B2B businesses, being registered is increasingly a baseline expectation among corporate procurement departments across Karachi.

Who Needs to Register with the Sindh Revenue Board?

Quick Answer

Any business or individual providing taxable services in Sindh with an annual turnover of Rs. 10 million or more is required to register with the Sindh Revenue Board. Voluntary registration is also available – and often strategically beneficial – for businesses below this threshold.

Do You Need SRB Registration? Check These Criteria
  • Your business provides services (not goods) in Sindh
  • Your annual taxable services turnover exceeds Rs. 10 million
  • Your B2B clients are asking for your SRB number before processing payment
  • You want to issue compliant tax invoices to corporate clients
  • You operate in IT, consulting, eCommerce, advertising, or professional services
The Withholding Mechanism – A Cash Flow Point Worth Knowing

Most guides skip over this, but there is a real financial reason to register that goes beyond ticking a compliance box. Under Sindh Sales Tax withholding rules, if you are providing services to a registered corporate client in Sindh and you are not yourself registered with the SRB, that client is required to withhold a higher percentage of your payment and deposit it directly with the SRB on your behalf. You receive less. And you have no way to reclaim or offset anything.

Once you are registered, the withholding obligation changes and you retain more of what you invoice. For businesses billing corporate clients regularly, that is a tangible, immediate difference to your cash flow.

Sectors Specifically Subject to Sindh Sales Tax

Service Category Subject to SST Standard Rate
IT and software services ✓ Yes 13%
Management consultancy ✓ Yes 13%
Advertising and marketing ✓ Yes 13%
eCommerce service providers ✓ Yes 13%
Accounting and legal services ✓ Yes 13%
Logistics and courier services ✓ Yes 13%
Training and educational services ~ Conditions apply Varies
Healthcare services ~ Conditions apply Varies

Note: Rates and exemptions are subject to SRB notifications and amendments. Always confirm the applicable rate for your specific service category – our team advises on this during your free assessment.

The Case for Voluntary Registration

If your turnover is below Rs. 10 million, registration is not mandatory – but that does not mean it is not worth doing. Voluntary registration lets you issue tax invoices that corporate clients can use to claim input tax. It signals that your business is formally compliant, which matters when pitching for contracts with larger organisations. It also lets you reclaim input tax on your own purchases, which can reduce your effective tax cost over time.

Many of the businesses we register – Karachi startups, independent consultants, and growing digital agencies – come to us because a corporate client made SRB registration a condition of their vendor onboarding. Being registered removes that barrier, whether you hit the mandatory threshold or not.

For context on how your federal registration fits into this picture, see our NTN registration Pakistan guide. SRB is the provincial layer that sits alongside your federal compliance, not a replacement for it.

This is where most freelancers get confused, and where the rules are genuinely nuanced. Does SRB apply to your work? A simple way to think through it:

Are ALL your clients based outside Pakistan?

If yes: Your services may qualify as zero-rated or exempt under SRB rules. The taxable event for Sindh Sales Tax applies when a service is consumed in Sindh. If consumption is abroad, SRB may not apply.

Important caveat: You may still need to register to formally claim that exemption. Operating unregistered and operating as a registered zero-rated provider are two different positions in the eyes of the SRB. The first is non-compliance. The second is a legitimate exemption claim.

Do ANY of your clients operate in Sindh?

If yes: That portion of your work is subject to SRB, regardless of what your other clients look like. You need to register and account for tax on the locally consumed services specifically.

Do you have a mix of local and international clients?

This is the most common situation for freelancers in Karachi. You register, account for SRB on Sindh-based client work, and document the basis for any zero-rated or exempt treatment on international work.

For broader context on your overall compliance position as a freelancer, see our freelancer tax filing Pakistan guide.

Requirements for Sindh Sales Tax Registration

Gathering your documents is the most time-consuming part of the whole process. Once everything is in order, the application itself is relatively straightforward. Our team reviews every document before submission to prevent rejections – and flags any gaps before they become problems.

Entity Type
Documents Required – Companies and LLCs
  • NTN Certificate
    Proof of federal tax registration with the FBR
  • CNIC of all directors
    Required for identity verification of all authorised individuals
  • Board Resolution
    A formal resolution authorising the representative submitting the application
  • Memorandum and Articles of Association
    Constitutional documents of the company
  • Bank account certificate or recent bank statement
    Confirms active business banking
  • Business premises lease agreement or ownership proof
    Verifies the registered business address
  • Utility bill for the business premises
    Recent bill confirming the physical address
Entity Type
Documents Required – Individuals, Sole Proprietors, and Freelancers
  • CNIC (original and copy)
    Primary identity document
  • NTN Certificate
    Federal tax registration proof
  • Bank account certificate
    Confirms active personal or business banking
  • Business premises proof
    Lease agreement or utility bill for your place of business
  • Professional credentials or business registration
    Where applicable to your profession or service type
Important Note
A Note on Service Classification

When completing your SRB registration, your services must be assigned the correct Tariff Heading – the category under which your specific service type is classified and taxed. Selecting the wrong heading at registration is not a minor administrative error. It can lock your business into an incorrect tax rate and create reconciliation problems that are difficult and time-consuming to resolve later. Our team ensures your service is classified correctly from the point of application.

Physical Verification
The SRB may visit your business premises before final approval

The officer is not simply checking whether your address is correct – they are looking for evidence that a functioning business actually operates from that location. A working office setup, staff presence, and documentation that matches your application all factor into that assessment.

We prepare clients for this step in advance, confirming that your premises documentation aligns with your application and that your setup will hold up to a straightforward review. A well-prepared visit is typically brief. An unprepared one is not.

⬇️ Download the Full SRB Document Checklist (PDF)

Our Service: What We Do for You

We Handle Your SRB Registration Completely – From Document Review to Approval

You do not need to navigate the SRB e-portal, interpret the Sindh Sales Tax on Services Act, or prepare for a physical verification visit on your own. We manage the entire process on your behalf – from your first eligibility assessment through to certificate delivery and invoice template setup.

What is included:
Initial eligibility assessment and consultation

We confirm your SRB obligations before a single document is collected

Document checklist review and gap analysis

We identify exactly what you have and what you still need

Complete application preparation and submission

We prepare and submit your full application through the SRB e-portal

Coordination with SRB for any queries or follow-ups

We handle all communication with the SRB on your behalf

Physical verification preparation

If a site visit is required, we brief you fully on what to expect and what to have ready

Registration certificate and number delivery

You receive your SRB registration certificate and unique registration number

Compliant invoice template setup

Your invoices are immediately ready with your SRB number correctly included

Optional ongoing service: Monthly SRB-1 return filing

Managed compliance so you never miss a deadline

One practical note on the portal
The SRB e-portal has known technical reliability issues

Including session timeouts and attachment rejections that are not always caused by errors on the applicant’s end. Navigating these without prior experience extends timelines and is genuinely frustrating. We handle portal submissions regularly and know how to work through these issues without losing progress or restarting applications.

✗ Without Professional Support
Unpredictable timeline, common rejections
  • Registration timeline is unpredictable
  • Rejections from document or classification errors are common
  • Portal technical issues extend timelines further
  • No guidance for physical verification visit
  • Risk of wrong Tariff Heading at point of application
✓ With Our Service
Submitted correctly the first time
  • Application submitted correctly the first time
  • Documents reviewed and gaps identified before submission
  • Service classification confirmed at point of application
  • Fully briefed and supported for physical verification
  • You never deal with the SRB portal yourself
Timeline: 10-20 working days from the point your documents are ready

The SRB Registration Process: 6 Steps

Free Eligibility Assessment
🕑 Same day

We review your business type, turnover, and client base to confirm your SRB obligations and advise on the right registration approach – including the correct service classification under the relevant Tariff Heading.

Document Checklist Delivery
🕑 Within 24 hours

You receive a customised document list based on your specific business structure – company, sole proprietor, or freelancer.

Document Collection and Review
🕑 1-3 business days

You submit your documents. We check every item for completeness, accuracy, and internal consistency before anything is submitted to the SRB.

Application Preparation and Submission
🕑 1-2 business days

We prepare your complete application, confirm your service classification, and submit through the SRB e-portal on your behalf.

SRB Review and Physical Verification (if required)
🕑 5-15 working days

The SRB reviews your application. In some cases they schedule a physical visit to your business premises. We brief you fully in advance so there are no surprises on the day.

Registration Certificate Issued
✅ Upon SRB approval

You receive your unique SRB registration number and certificate. We set up your compliant invoice template and walk you through monthly filing requirements.

Your compliance does not end – it shifts to a monthly rhythm. Ask us about our managed SRB-1 return filing service to keep that rhythm running without effort on your side.

Maintaining Compliance: Monthly SRB Returns

Registration is only the beginning. Once registered, your business has an ongoing monthly obligation to file returns and remit any tax collected.

Filing Compliance Summary

Registered SRB taxpayers must file Form SRB-1 by the 15th of every month, declaring all taxable services rendered in the previous month. Late filing attracts a penalty of Rs. 5,000 plus 18% annual interest on any unpaid tax.

The SRB-1 Form Explained

The SRB-1 Form is the monthly sales tax return every registered business must submit. It captures three things: the output tax you collected from clients during the month, the input tax you paid on your own purchases, and the net tax payable to the SRB after the adjustment.

Item What it Means
Output Tax Sales tax charged to your clients on taxable services
Input Tax Sales tax you paid on purchases used in your business
Net Tax Payable Output tax minus input tax – this is what you remit to the SRB
Filing Deadline – Every Month
15th

of every month, without exception. Missing it is not a minor administrative slip. It triggers an immediate Rs. 5,000 penalty per return, plus interest on any tax that was due but unpaid.

What Happens If You Miss a Deadline
Fixed penalty per missed return Rs. 5,000
Annual interest on unpaid tax 18% p.a.
Repeated missed deadlines increase Audit risk
Our Managed Service
Most clients who use our managed filing service do not think about this after setup

We handle the return, submit it before the deadline, and confirm filing each month. You focus on running your business. The most straightforward way to avoid missed deadlines entirely is a managed monthly filing arrangement.

Penalties for Late Registration and Filing

Failure to register with the Sindh Revenue Board when mandatory, or failure to comply with filing and invoicing obligations, carries real financial consequences. These apply from the point your obligations arise – not from the point you become aware of them.

Failure to register when mandatory
Rs. 10,000

+ potential tax assessment on all taxable turnover since threshold was crossed

Late filing of SRB-1 monthly return
Rs. 5,000

Per return, automatically triggered on the 16th of every month if filing is missed

Interest on unpaid tax
18% p.a.

Annual interest calculated on all unpaid tax from the date it became due

Invoice without SRB registration number
Rs. 10,000

Per invoice. Every invoice issued without a valid SRB number is a separate violation

Failure to maintain required records
Up to Rs. 50,000

For inadequate record keeping and failure to maintain SRB-required documentation

The Cost of Waiting
A real example: Rs. 15 million turnover, 12 months unregistered

Consider a business with Rs. 15 million in annual services turnover that has been operating without SRB registration for 12 months. Beyond the registration penalty itself, every invoice issued during that period without an SRB number is a separate Rs. 10,000 violation. For a business issuing even 20 invoices per month, that exposure accumulates fast. Professional registration looks very affordable by comparison.

20
Invoices per month (example)
x 12
Months operating unregistered
Rs. 24 Lac
Potential penalty exposure from invoices alone

The other risk worth noting is audit exposure. Unregistered businesses operating above the threshold are visible to the SRB through FBR filings and banking activity. Proactive registration is always a better position than receiving a compliance notice. All of these penalties are entirely avoidable with proper registration and a consistent filing routine. That is exactly what we manage for our clients.

DIY vs. Professional Service: An Honest Comparison

DIY registration is technically possible. The SRB e-portal is publicly accessible and the documentation list is available. Here is what the two paths actually look like side by side:

Category DIY Registration
Self-Managed
Professional Service
Handled For You
Time Required 10-20+ hours of your time Your time: under 2 hours
Portal Navigation Complex, with known technical reliability issues Handled completely on your behalf
Document Errors Common, cause delays and rejections Reviewed and gaps identified before submission
Service Classification Self-determined – risk of wrong Tariff Heading Confirmed correctly at point of application
Physical Verification Prep Self-managed, no guidance Fully briefed and supported
Post-Registration Support None Invoice setup + filing guidance
Risk of Rejection Moderate – document and classification errors are common Minimal – submitted correctly the first time
Monthly SRB-1 Filing Self-managed – risk of missing 15th deadline Optional managed service available
Cost Rs. 0 direct cost
(but your time + rejection risk + potential penalties)
Fixed, transparent service fee
Where Most DIY Attempts Stall
  • Stage 1 – Most Common
    Document Review

    Mismatched addresses, outdated bills, or incorrectly formatted board resolutions cause application rejection before it even reaches the SRB

  • Stage 2 – Technical Barrier
    Portal Submission

    Session timeouts, attachment size limits, and portal errors that are not always caused by user mistakes – and restart the entire process

  • Stage 3 – High Stakes Error
    Service Classification

    Choosing the wrong Tariff Heading at registration locks the business into an incorrect tax rate and creates long-term reconciliation problems

Most clients who come to us have already attempted DIY registration that stalled

The process is not impossible. But the margin for error is real, and the cost of rejection is more wait time and more exposure. Usually at the document review, portal submission, or service classification stage. Save time and eliminate risk. Let us handle it.

Free consultation – no commitment required

Service Packages

Registration Only
Best for businesses that want to handle their own monthly filing after registration is complete.

Everything you need to get registered with the Sindh Revenue Board – handled completely by our team.

  • Eligibility assessment and consultation
  • Document review and gap analysis
  • Service classification confirmation
  • Complete application preparation and submission through the SRB e-portal
  • Registration certificate delivery
  • Compliant invoice template setup
Annual Compliance Partner
Best for growing businesses and Karachi startups that want SRB compliance completely off their plate for the full year.

Registration (if not yet completed), twelve months of managed monthly SRB-1 return filing, quarterly compliance review, and priority support throughout.

  • Registration included (if not yet completed)
  • 12 months of managed monthly SRB-1 return filing
  • Quarterly compliance review
  • Priority support throughout the year
  • Full-year SRB compliance – completely managed

What Our Clients Say

We had our FBR registration in place and assumed that covered everything. When a corporate client asked for our SRB number before releasing payment, we had no idea what to do. The team sorted our registration within 15 working days and we have been invoicing correctly ever since.

Ahmed Hassan
Tech Startup Founder, Karachi
✓ Verified

I’m a freelance consultant with a mix of local and international clients. I was not sure whether SRB applied to me at all. After a free assessment, everything was clear. The process was handled completely and my corporate clients can now receive compliant invoices.

Sara Raza
Independent Consultant, Karachi
✓ Verified

We had been operating an eCommerce services firm for two years without SRB registration. We were nervous about what that meant for our compliance status. The team assessed our situation, advised on voluntary registration, and brought us into compliance without triggering penalties.

Kamran Malik
eCommerce Services Director, Karachi
✓ Verified

Free eligibility assessment – no commitment required

Industries and Business Types We Serve

IT services are explicitly listed under the Sindh Sales Tax on Services Act, 2011. Tech companies operating in Karachi – including those based in commercial areas along Sharah-e-Faisal – are among the most frequently registered SRB taxpayers in the province.

Whether you provide software development, design, writing, or professional advisory services, your Sindh-based client work may be subject to sales tax. We clarify your exact position – including your international client exemption status – before registration begins.

Businesses providing platform management, logistics coordination, or fulfilment services within Sindh have clear SRB obligations. We register and manage compliance for eCommerce service operators on a regular basis.

Advertising services are taxable under Sindh Sales Tax. Agencies operating in Karachi – regardless of where their clients are headquartered – need to assess their SRB obligations carefully.

Professional services firms are a core SRB registrant category. If you bill clients for professional services rendered in Sindh, your registration obligation is almost certainly mandatory above the threshold.

Logistics operators providing services in Sindh are subject to provincial sales tax and must register once the mandatory threshold is crossed.

Subject to specific conditions and SRB notifications. We assess each case individually to confirm applicability before any registration is initiated.

⚠ Conditions apply – free assessment recommended

Healthcare services carry specific exemptions and conditions under Sindh Sales Tax rules. Our team advises on applicability before any registration is initiated.

⚠ Conditions apply – free assessment recommended
Operating Across Multiple Provinces?
Your obligations extend beyond Sindh

If you operate across multiple provinces – for example, with operations in both Sindh and Punjab or Balochistan – your obligations extend to multiple provincial authorities. See our PRA registration and BRA registration guides for the additional compliance layers that apply.

Frequently Asked Questions

No. One registration covers everything – Karachi, Hyderabad, Sukkur, anywhere else in the province. You do not register per city.

Your NTN comes from the Federal Board of Revenue and handles federal income tax and sales tax on goods. SRB registration is a separate provincial requirement that applies specifically to businesses providing services in Sindh. Having an NTN does not satisfy your SRB obligations. They are governed by different legislation, administered by different authorities, and both need to be in place for a service business in Sindh to be fully compliant.

Typically between 10 and 20 working days from the date of application submission. The exact timeframe depends on the completeness of your documents and whether a physical verification of your premises is required by the SRB.

Not automatically – but it really does depend on your client mix. If all your clients are outside Pakistan, your services may qualify as zero-rated or exempt. That said, operating unregistered and operating as a formally registered zero-rated provider are two different things. The SRB does not automatically recognise an exemption you have not claimed through proper registration. If any of your clients operate in Sindh, those services are subject to Sindh Sales Tax regardless of what the rest of your client list looks like.

A free eligibility assessment will give you a clear answer for your specific situation. Our freelancer tax filing Pakistan guide also covers broader context worth reading.

Rs. 5,000 per missed return, plus 18% annual interest on any unpaid tax. Deadlines fall on the 15th of every month, no exceptions.

Yes, voluntary registration is available to any eligible service provider regardless of turnover. It is often worth doing. You can issue tax invoices to corporate clients, demonstrate formal compliance, benefit from the withholding rules that favour registered providers, and offset input tax against output tax. A lot of smaller Karachi businesses register voluntarily specifically to meet corporate vendor requirements or to remove barriers when going after enterprise contracts.

Each invoice issued without a valid SRB registration number carries a Rs. 10,000 penalty per violation. This applies even if you are otherwise registered – the number must appear on every tax invoice you issue for taxable services.

In many cases, yes. The SRB may conduct a physical verification of the business address provided in your application before granting final approval. The officer is checking whether a functioning business actually operates from that location – not just whether the address exists on paper. We prepare all clients for this step and make sure your premises documentation and setup are aligned with your application before submission.

Addressing Your Concerns

Concern
“This will cost too much.”

Consider the alternative. A single penalty for operating without SRB registration, or one batch of invoices issued without an SRB number at Rs. 10,000 per invoice, will cost more than a complete registration service. Our fee is fixed, transparent, and a fraction of your first penalty exposure.

✓ The penalty math makes professional registration the clear choice
Concern
“I can do this myself.”

You can. The SRB e-portal is publicly accessible and the document list is available. Most clients who come to us, though, have already attempted DIY registration and stalled – at the document review stage, at the portal itself, or at the service classification step where choosing the wrong Tariff Heading creates longer-term complications. We remove those roadblocks entirely.

✓ We eliminate the margin for error DIY cannot protect against
Concern
“I’m not sure I even need this.”

That uncertainty is itself a risk. If your turnover has crossed Rs. 10 million, or your clients are asking for your SRB number, you very likely need registration. Our free eligibility assessment gives you a definitive answer in under 24 hours with no commitment required.

✓ Free assessment removes all uncertainty in under 24 hours
Concern
“I’ve been operating without it for years – is it too late?”

No. Voluntary registration and catch-up compliance are possible in most cases. Acting sooner limits your exposure. Our team has helped businesses bring their compliance status up to date without triggering unnecessary penalties. Book a confidential call and we will assess your specific situation.

✓ Earlier action always means less exposure – it is never too late to start
Karachi-Based Tax Compliance Experts

Get Your SRB Registration Done – Correctly, Quickly, and Without the Stress

Full-service registration handled by Karachi-based tax compliance experts
Guaranteed document review and service classification check before submission – no avoidable rejections
Free eligibility assessment with no commitment required

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We will assess your situation, confirm your obligations, and tell you exactly what you need – before you commit to anything.

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