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A SARS tax number (also called a tax reference number) is your unique identifier with the South African Revenue Service. It's a 10-digit number that stays with you for life, across every job, business venture, and financial interaction with SARS. Whether you're starting your first job, launching a business, or simply want to ensure you're properly registered with the tax authorities, getting a tax number is straightforward, free, and takes just minutes.

This comprehensive guide walks you through everything about SARS tax number registration: how to check if you already have one (most people do), step-by-step registration processes for every method (online, app, branch), required documents for South African citizens and foreign nationals, business and company registration, activating your eFiling profile, and detailed troubleshooting for common problems. Whether you're registering for the first time or trying to find a lost number, this guide has you covered.

Who Needs a Tax Number?

Understanding who needs a tax number helps you determine whether you should register or whether you might already have one.

Individuals who need a tax number

Situation Need Tax Number? Why
Formally employed Yes (usually automatic) Employer must register you for PAYE
Earning above tax threshold (R99,000/year) Yes Required to file tax returns
Earning below tax threshold Recommended May be owed refunds, needed for tax clearance
Freelancers/contractors Yes Must declare income, may need to register as provisional taxpayer
Receiving rental income Yes Rental income must be declared
Earning investment income Depends on amount Required if interest exceeds R23,800/year (under 65)
Selling property/assets Yes Capital gains tax implications
Applying for tax clearance Yes Required for loans, contracts, emigration
Claiming tax refunds Yes Cannot claim without registered number

Businesses that need tax numbers

  • Companies (Pty Ltd): Automatically registered with CIPC, receive income tax number
  • Sole proprietors: Use personal tax number for business income
  • Partnerships: Each partner uses their personal tax number
  • Close corporations: Separate tax number required
  • Trusts: Separate tax number required

Who does NOT need a tax number

  • Minors with no income: Children under 18 with no taxable income
  • Non-residents with no SA income: Foreign nationals earning no SA-sourced income
  • Informal workers below threshold: Casual workers earning very small amounts informally

Important: Even if you don't strictly need a tax number, registering is advisable. It's free, takes minimal time, and prevents complications later when you might need one urgently for a loan application or job.

Do You Already Have a Tax Number?

Before registering, check if you already have a tax number. Most South Africans who have ever been formally employed already have one — they just don't realize it.

Why you probably already have one

If you've ever been formally employed in South Africa, your employer was legally required to register you for a tax number as part of the onboarding process. This happens automatically through the SARS e@employer system when your employer adds you to their payroll. Many people who think they need to register for the first time actually already have a number sitting inactive in the SARS system.

How to check if you already have a tax number

Method 1: Check your IRP5 certificate

The easiest way to find your tax number:

  1. Locate any IRP5: This is the annual tax certificate your employer issues (usually by end of May each year)
  2. Look for "Tax Reference Number": It's a 10-digit number, typically starting with 0 or 9
  3. Location: Usually near the top of the certificate, clearly labeled
  4. Example format: 0123456789 or 9123456789

If you've worked for multiple employers, each IRP5 should show the same tax number — it stays with you across jobs.

Method 2: Check your payslip

Many employers include your tax reference number on your monthly payslip:

  • Look for "Tax Number", "PAYE Number", or "Tax Reference"
  • Usually a 10-digit number
  • May be listed near your employee number or ID number

Method 3: Log into SARS eFiling

If you've ever registered for eFiling (even briefly):

  1. Go to www.sarsefiling.gov.za
  2. Click "Login" and enter your username and password
  3. Your tax number appears on the dashboard
  4. If you've forgotten your login details, use "Forgot Password" to reset

Method 4: Use the SARS MobiApp

The mobile app offers easy number retrieval:

  1. Download "SARS MobiApp" from your app store
  2. Open the app and select "Retrieve Tax Number"
  3. Enter your ID number
  4. Follow verification steps (may require OTP or selfie)
  5. Your tax number displays if one exists

Method 5: Call SARS Contact Centre

If other methods fail:

  1. Call 0800 00 7277 (toll-free)
  2. Select option for tax number queries
  3. Provide your ID number and personal details for verification
  4. Agent will confirm whether you have a tax number and provide it

Operating hours: Monday to Friday 8am-5pm, closed weekends and public holidays

Method 6: Visit a SARS branch

As a last resort:

  1. Find your nearest SARS branch at www.sars.gov.za
  2. Book an appointment online (recommended to avoid queues)
  3. Bring your ID document
  4. Staff can look up your tax number on their system

What if you find an existing number?

If you discover you already have a tax number:

  • Use it: This is your official tax number — don't register again
  • Activate eFiling: If not already done, register for eFiling using this number
  • Update details: Log into eFiling and ensure your contact and banking details are current
  • Check status: Verify you have no outstanding returns or payments
Warning: Never register for a second tax number if you already have one. Duplicate registrations create serious complications — SARS may flag your profile, delay refunds, or require you to go through a lengthy consolidation process. Always check thoroughly before registering.

How to Register for a Tax Number

If you've confirmed you don't already have a tax number, here are the four ways to register.

Method 1: Online via SARS eFiling (Recommended)

The fastest and most convenient method, available 24/7.

Step-by-step registration process

  1. Visit SARS eFiling: Go to www.sarsefiling.gov.za
  2. Click "Register": Find the registration link on the homepage
  3. Select "Individual": Choose individual taxpayer (not business)
  4. Enter ID number: Your 13-digit South African ID number
  5. Complete personal details:
    • Full name and surname
    • Date of birth
    • Contact details (email, phone)
    • Residential address
  6. Create login credentials:
    • Choose a username
    • Create a strong password
    • Set security questions
  7. Upload documents (if required):
    • Clear photo or scan of your ID
    • Proof of address (sometimes required)
  8. Submit registration: Review all information and submit
  9. Receive confirmation: Tax number sent via email within 24 hours

What you'll need for online registration

Document Requirements Tips
SA ID Green barcoded ID or smart ID card Must be valid, not expired
Proof of address Utility bill, bank statement, lease (max 3 months old) Must show your name and current address
Banking details Branch code, account number, account type Account must be in your name
Email address Active email you can access You'll receive your tax number here
Phone number Mobile number for OTP verification Must be able to receive SMS

Timeline for online registration

  • Registration process: 10-15 minutes
  • Tax number issued: Usually within 24 hours, often instantly
  • eFiling activation: Additional 24-48 hours for full access
  • Total time: 1-3 days from start to full functionality

Method 2: SARS MobiApp

Mobile-first registration using your smartphone.

Step-by-step app registration

  1. Download the app: Search "SARS MobiApp" in your app store (iOS or Android)
  2. Open and select "Register": Choose new user registration
  3. Enter ID number: Your 13-digit SA ID
  4. Verify identity: Take a selfie for facial recognition
  5. Complete details: Personal information, contact details, address
  6. Upload documents: Take photos of ID and proof of address
  7. Create credentials: Set up app PIN and security questions
  8. Submit: Review and submit registration
  9. Receive number: Tax number displayed in app within 24 hours

Advantages of app registration

  • Convenient: Register from anywhere with your phone
  • Photo verification: Easy document upload using camera
  • Biometric security: Facial recognition adds security layer
  • Instant access: Manage your tax affairs directly from the app

Limitations of app registration

  • Requires smartphone: Not suitable for basic phones
  • Camera quality: Poor photos may cause verification failures
  • Data usage: Uploading documents uses mobile data
  • App bugs: Occasional technical issues may require retrying

Method 3: In Person at SARS Branch

Traditional registration with face-to-face assistance.

Preparing for your branch visit

  1. Find a branch: Visit www.sars.gov.za and use the branch locator
  2. Book appointment: Highly recommended to avoid long queues
    • Book online via SARS website
    • Or call 0800 00 7277
    • Select "Registration" as service type
  3. Gather documents: Bring original documents (not copies):
    • SA ID document (green book or smart card)
    • Proof of address (original, not older than 3 months)
    • Bank statement or letter showing account details
  4. Arrive early: Even with appointment, arrive 15 minutes early

At the branch

  1. Check in: Confirm your appointment at reception
  2. Wait for consultant: Usually 15-30 minutes
  3. Provide documents: Consultant will verify originals
  4. Complete forms: Fill in registration form with consultant's help
  5. Biometric capture: Some branches take fingerprints or photo
  6. Receive number: Tax number issued immediately
  7. Get confirmation letter: Printed letter with your tax number

Branch visit timeline

  • Appointment booking: 5-10 minutes online or by phone
  • Wait for appointment: Usually 1-7 days depending on branch
  • Branch visit: 1-2 hours including waiting time
  • Tax number issued: Immediately during visit

Method 4: Through Your Employer

Most common method for first-time employees.

How employer registration works

  1. Start new job: Complete onboarding paperwork
  2. Provide details: Give employer your ID and personal information
  3. Employer registers you: Uses SARS e@employer system
  4. SARS issues number: Usually within 24-48 hours
  5. Employer receives number: Added to their payroll system
  6. You receive number: Appears on first payslip or IRP5

What to do if employer doesn't register you

If your employer hasn't registered you within the first month:

  • Ask HR/Payroll: Inquire about your tax number
  • Check payslip: Should appear after first payroll run
  • Self-register: If employer hasn't done it, register yourself online
  • Provide number to employer: Give them your tax number for their records

Required Documents for Registration

Having the correct documents ready speeds up your registration significantly.

For South African citizens

Document Acceptable Forms Notes
Identity document Green barcoded ID book OR Smart ID card Must be valid, not damaged or expired
Proof of address Utility bill (water, electricity), bank statement, retail account statement, lease agreement Must be less than 3 months old, show your name and current address
Banking details Bank statement, letter from bank, cancelled cheque Must show account holder name, account number, branch code

For foreign nationals

Document Acceptable Forms Notes
Passport Valid passport from country of origin Must not be expired
Work authorization Work permit, work visa, critical skills visa, or permanent residence permit Must be valid and allow employment in SA
Proof of address Same as SA citizens Less than 3 months old
Banking details Same as SA citizens SA bank account in your name

Document requirements by registration method

Method Document Format Special Requirements
Online (eFiling) Digital uploads (PDF, JPG, PNG) Clear, legible scans or photos, max 2MB per file
Mobile app Photos taken with phone camera Good lighting, all four corners visible, no glare
Branch visit Original physical documents Bring originals, not photocopies

Tips for document preparation

  • Check expiry dates: Ensure ID and passport are valid
  • Update address: If you've moved recently, get new proof of address
  • Quality matters: Blurry or unclear documents cause delays
  • Complete documents: Show full page, all four corners
  • Current banking: Use account you actively use for salary

Business and Company Tax Registration

Business tax registration works differently from individual registration.

Types of business entities and their tax requirements

Entity Type Tax Registration Process
Private company (Pty Ltd) Income tax number Automatic with CIPC registration
Sole proprietor Use personal tax number Business income added to personal return
Partnership Each partner uses personal number Partnership files informational return
Close corporation Separate tax number Register via SARS eFiling
Trust Separate tax number Register via SARS eFiling

Registering a new company (Pty Ltd)

  1. Register with CIPC: Companies and Intellectual Property Commission
  2. Receive registration: CIPC issues company registration number
  3. Automatic tax registration: SARS receives notification from CIPC
  4. Tax number issued: Within 21 business days
  5. Receive notification: Letter from SARS with income tax number
  6. Register for eFiling: Activate online profile using tax number

Additional business tax registrations

After receiving your income tax number, you may need to register for:

Value-Added Tax (VAT)

  • Required: If turnover exceeds R1 million per year
  • Voluntary: Can register if turnover exceeds R50,000
  • Register: Via SARS eFiling after income tax number issued

PAYE (Pay As You Earn)

  • Required: If you employ staff
  • Register: Via SARS eFiling
  • Timeline: Within 21 days of hiring first employee

UIF (Unemployment Insurance Fund)

  • Required: If you employ staff working 24+ hours per month
  • Register: Via Department of Employment and Labour
  • Timeline: Within 21 days of hiring

SDL (Skills Development Levy)

  • Required: If payroll exceeds R500,000 per year
  • Register: Via SARS eFiling
  • Rate: 1% of total payroll

Sole proprietor tax considerations

As a sole proprietor:

  • No separate business tax number: Use your personal tax number
  • Business income: Declared on your personal tax return (ITR12)
  • Business expenses: Deducted from business income
  • Provisional tax: May need to register as provisional taxpayer
  • Record keeping: Keep business and personal expenses separate

Activating Your eFiling Profile

Getting a tax number is step one. Activating your eFiling profile gives you full online access to manage your tax affairs.

Why activate eFiling?

  • File returns online: Submit tax returns electronically
  • View assessments: See your tax assessments instantly
  • Track refunds: Monitor refund status in real-time
  • Manage payments: Make payments and view payment history
  • Update details: Change address, banking details, contact information
  • Request tax clearance: Apply for tax clearance certificates online
  • View correspondence: Access all SARS letters and notices

Step-by-step eFiling activation

  1. Wait for tax number: Ensure you've received your 10-digit tax number
  2. Visit eFiling: Go to www.sarsefiling.gov.za
  3. Click "Register": Select "Register for eFiling"
  4. Select taxpayer type: Individual, business, or tax practitioner
  5. Enter tax number: Your 10-digit SARS tax reference number
  6. Verify identity: Enter ID number and personal details
  7. Create credentials:
    • Choose username (6-30 characters)
    • Create password (8+ characters, include numbers and symbols)
    • Set security questions and answers
  8. Add banking details: Account for refunds and payments
  9. Submit registration: Review and submit
  10. Receive confirmation: Email with activation link
  11. Activate account: Click link in email to activate
  12. First login: Log in and explore your dashboard

eFiling security features

  • Two-factor authentication: OTP sent to your phone for sensitive actions
  • Security questions: Additional verification layer
  • Session timeout: Automatic logout after inactivity
  • Encrypted connection: All data transmitted securely

Common eFiling activation issues

Issue Cause Solution
Tax number not recognized Number not yet active in system Wait 24-48 hours after receiving number
Details don't match Name/ID mismatch with SARS records Contact SARS to update records
Email not received Spam filter or incorrect email Check spam folder, verify email address
Password requirements Password too weak Use 8+ characters with numbers and symbols

Troubleshooting Common Problems

Even straightforward processes can encounter issues. Here's how to solve common problems.

Problem 1: Online registration fails

Symptoms: Registration form won't submit, error messages, page freezes

Solutions:

  • Try different browser: Chrome, Firefox, Safari, Edge
  • Clear cache and cookies: Remove stored data that may cause conflicts
  • Disable ad blockers: Some interfere with SARS website
  • Check internet connection: Ensure stable connection
  • Try different time: SARS system may be down for maintenance
  • Use mobile app instead: Alternative registration method

Problem 2: Document upload rejected

Symptoms: Upload fails, "invalid document" error, file too large

Solutions:

  • Check file format: Must be PDF, JPG, or PNG
  • Reduce file size: Compress images, keep under 2MB
  • Improve quality: Ensure text is legible, no blur
  • Show complete document: All four corners visible
  • Correct orientation: Rotate images if needed
  • Use scanner app: Apps like CamScanner improve document quality

Problem 3: ID verification fails

Symptoms: "ID not recognized", "details don't match", verification rejected

Solutions:

  • Check ID number: Ensure 13 digits, no typos
  • Name spelling: Must match ID exactly (middle names, hyphens)
  • Date of birth: Verify DD/MM/YYYY format
  • Home Affairs records: If details changed recently, Home Affairs may not have updated
  • Contact SARS: They can manually verify your identity
  • Visit branch: In-person verification may be required

Problem 4: Tax number not received

Symptoms: Registered but no tax number after 48 hours

Solutions:

  • Check email: Including spam/junk folders
  • Log into eFiling: Number may be visible in profile
  • Use MobiApp: Check if number appears there
  • Call SARS: 0800 00 7277 for status update
  • Wait longer: Some registrations take 3-5 business days
  • Re-register: If no response after 7 days, try again

Problem 5: Duplicate tax numbers

Symptoms: Discovered you have two different tax numbers

Solutions:

  • Don't panic: This happens and can be resolved
  • Contact SARS immediately: Call 0800 00 7277
  • Explain situation: You accidentally registered twice
  • Provide both numbers: SARS will identify which to keep
  • Consolidation process: SARS merges records (can take 4-6 weeks)
  • Keep confirmation: Get written confirmation of which number is active

Problem 6: eFiling login issues

Symptoms: Can't log in, forgotten password, account locked

Solutions:

  • Forgot password: Use "Forgot Password" link to reset
  • Account locked: After 3 failed attempts, wait 30 minutes or reset password
  • Username forgotten: Use "Forgot Username" with ID number
  • Security questions: If forgotten, contact SARS to reset
  • Browser issues: Try different browser or clear cache

Tax Clearance Certificates

Once you have a tax number, you can apply for tax clearance certificates when needed.

What is a tax clearance certificate?

A document from SARS confirming your tax affairs are in order:

  • Tax Compliance Status (TCS): Shows you're compliant with tax obligations
  • PIN system: Electronic verification replacing paper certificates
  • Valid for 12 months: Must be renewed annually if needed

When you need tax clearance

Situation Required? Purpose
Government tenders Yes Prove tax compliance for contracts
Emigration Yes Confirm all taxes paid before leaving
Large loans Sometimes Banks may request for large mortgages
Foreign investment Yes Required for transferring funds abroad
Business licenses Sometimes Some licenses require tax clearance

How to apply for tax clearance

  1. Log into eFiling: Access your profile
  2. Navigate to "Tax Types": Select "Tax Compliance Status"
  3. Request TCS: Click "Request Tax Compliance Status"
  4. Select purpose: Choose why you need clearance
  5. Submit request: SARS reviews your compliance
  6. Receive PIN: If compliant, receive PIN within 21 business days
  7. Share PIN: Provide to requesting party for verification

What affects your tax compliance status

  • Outstanding returns: All returns must be filed
  • Unpaid tax: All tax debts must be settled or under payment arrangement
  • Outstanding documents: No pending verification or audit requests
  • Correct banking details: SARS must have current banking information

Special Considerations for Foreign Nationals

Foreign nationals working in South Africa have additional requirements.

Who needs a tax number

  • Employed in SA: Any foreign national with SA employment
  • SA-sourced income: Rental income, business income, investment income
  • Temporary residents: Even short-term workers need tax numbers
  • Permanent residents: Same requirements as SA citizens

Additional documentation required

Document Purpose Validity
Valid passport Primary identification Must not be expired
Work visa/permit Proof of right to work Must be current and valid
Proof of address SA residential address Less than 3 months old
SA bank account For refunds and payments Must be in your name

Tax residency for foreign nationals

Your tax obligations depend on residency status:

Tax resident

  • Criteria: Ordinarily resident OR physically present 915+ days over 5 years
  • Taxation: Worldwide income taxed in SA
  • Filing: Must file annual tax return

Non-resident

  • Criteria: Don't meet residency tests
  • Taxation: Only SA-sourced income taxed
  • Filing: Only if SA income exceeds threshold

Double taxation agreements

South Africa has agreements with many countries to prevent double taxation:

  • Check if applicable: Your home country may have agreement with SA
  • Tax credits: May claim credits for tax paid in other country
  • Consult specialist: International tax can be complex

Common Mistakes to Avoid

These mistakes can delay your registration or create future problems.

Mistake 1: Not checking if you already have a number

The mistake: Registering without checking existing records

The cost: Duplicate registration, complicated consolidation process

The fix: Always check IRP5, eFiling, and call SARS before registering

Mistake 2: Paying third parties for registration

The mistake: Paying "agents" to register you for a tax number

The cost: Wasted money (R200-R500), potential fraud

The fix: Registration is FREE directly from SARS — never pay for this service

Mistake 3: Providing incorrect information

The mistake: Typos in ID number, name, or address

The cost: Registration rejected, delays, potential identity issues

The fix: Double-check all information against your ID document

Mistake 4: Using expired documents

The mistake: Submitting expired ID or old proof of address

The cost: Registration rejected, must restart process

The fix: Ensure all documents are current and valid

Mistake 5: Not activating eFiling

The mistake: Getting tax number but never activating eFiling profile

The cost: Can't file returns online, miss refunds, can't track compliance

The fix: Activate eFiling immediately after receiving tax number

Mistake 6: Not updating banking details

The mistake: Keeping old bank account details after changing banks

The cost: Refunds delayed or paid to wrong account

The fix: Update banking details on eFiling whenever you change accounts

Mistake 7: Ignoring SARS correspondence

The mistake: Not reading emails or letters from SARS

The cost: Missed deadlines, penalties, compliance issues

The fix: Check eFiling regularly, read all SARS communications

Mistake 8: Sharing your tax number

The mistake: Giving tax number to unauthorized parties

The cost: Potential identity theft, fraud

The fix: Only share with employer, SARS, legitimate financial institutions

What to Do After Registration

Once you have your tax number, take these important next steps.

Immediate actions (first week)

  1. Save your number: Store securely (password manager, safe document)
  2. Activate eFiling: Register for online access
  3. Update details: Ensure contact and banking information current
  4. Provide to employer: Give tax number to HR/payroll
  5. Check compliance: Verify no outstanding returns or payments

First month actions

  1. Explore eFiling: Familiarize yourself with the platform
  2. Check tax status: Understand your current tax position
  3. Set reminders: Note important dates (filing deadlines, provisional tax)
  4. Understand obligations: Know when you need to file returns
  5. Keep records: Start organizing tax documents

Ongoing responsibilities

  • File returns: Submit annual tax returns when required
  • Pay tax: Pay any tax owed by due dates
  • Update information: Keep SARS informed of address, banking, contact changes
  • Keep records: Retain tax documents for 5 years
  • Check compliance: Regularly review your tax status

When to file a tax return

You must file if:

  • Income exceeds threshold: R500,000+ from single employer
  • Multiple income sources: More than one employer or income type
  • Additional income: Rental, freelance, investment income above exemptions
  • Want to claim: Deductions, refunds, or tax credits
  • SARS requests: SARS specifically asks you to file

When you might NOT need to file

You may not need to file if:

  • Single employer: Only one source of employment income
  • Below threshold: Earn less than R500,000
  • No other income: No rental, investment, or freelance income
  • No deductions: Nothing to claim
  • Auto-assessment: SARS issues auto-assessment (must still review)

Frequently Asked Questions

How do I get a tax number in South Africa?

You can register for a SARS tax number in four ways: 1) Online via SARS eFiling at www.sarsefiling.gov.za (click 'Register' and follow prompts with your ID), 2) Using the SARS MobiApp on your smartphone, 3) In person at any SARS branch with your ID and proof of address, or 4) Automatically through your employer when you start a new job. The process is completely free and typically takes 24 hours for your number to be issued.

Is a tax number free in South Africa?

Yes, registering for a SARS tax number is completely free. SARS does not charge any fees for tax number registration, whether you register online, via the app, or at a branch. Be extremely cautious of any third-party service charging fees specifically for tax number registration — this is a scam. Legitimate tax practitioners charge for tax return preparation and advice, not for the registration itself, which SARS provides at no cost to all taxpayers.

Do I already have a tax number if I've worked before?

Very likely yes. If you've ever been formally employed in South Africa, your employer was legally required to register you for a tax number as part of the onboarding process. Your tax number appears on your IRP5 tax certificate issued annually by your employer. You can also check by logging into SARS eFiling or using the SARS MobiApp with your ID number. Many people who think they need to register actually already have a number they've simply forgotten about or never used directly.

What documents do I need to register for a tax number?

For South African citizens: Your green barcoded ID book or smart ID card. For foreign nationals: Valid passport plus work permit or visa proving right to work in SA. For all applicants: Proof of residential address (utility bill, bank statement, or lease agreement not older than 3 months), and your banking details (branch code and account number) for any future refunds. If registering at a SARS branch, bring original documents — photocopies may not be accepted. For online registration, you'll need to upload clear photos or scans.

How long does it take to get a tax number?

If you register online via eFiling or the SARS MobiApp, your tax number is typically issued within 24 hours, often instantly. If you register in person at a SARS branch, you usually receive your number immediately during your visit. If your employer registers you, you should receive your tax number within the first month of employment (check your first payslip or IRP5). The number itself is issued quickly, but activating your eFiling profile and accessing all services may take an additional 24-48 hours after registration.

Can I register for a tax number online?

Yes, you can register completely online through two channels: 1) SARS eFiling website (www.sarsefiling.gov.za) — click 'Register' on the homepage, enter your ID number, complete the registration form with personal details, upload proof of address if required, and submit. You'll receive your tax number via email within 24 hours. 2) SARS MobiApp — download from app stores, select 'Register', follow the guided process with your ID and selfie verification. Both methods are free, available 24/7, and don't require visiting a SARS branch.

What's the difference between a tax number and an eFiling profile?

A tax number (also called tax reference number) is your unique 10-digit identifier with SARS that stays with you for life. An eFiling profile is your online account that allows you to file returns, view assessments, and manage your tax affairs electronically. You need a tax number first, then you can register for eFiling using that number. Some people have a tax number (issued by their employer) but never activated eFiling. Both are free and both are needed to fully manage your tax affairs online.

Do I need a tax number if I earn below the tax threshold?

Yes, it's still advisable to register even if you earn below the tax threshold (R99,000/year in 2027). Reasons: 1) You may be owed a refund if tax was deducted from your salary, 2) You'll need a tax number for tax clearance certificates (required for loans, contracts, emigration), 3) If your income increases, you're already registered, 4) It's free and takes minimal time. Having a tax number doesn't mean you owe tax — it simply means SARS has you on their system as a registered taxpayer.

How do I find my tax number if I've lost it?

Several ways to retrieve a lost tax number: 1) Check any previous IRP5 tax certificates from past employers — your 10-digit tax reference number is printed on these. 2) Log into SARS eFiling if you've ever registered — your number appears in your profile dashboard. 3) Use the SARS MobiApp — the 'Retrieve Tax Number' feature uses your ID to find your number. 4) Check old correspondence from SARS — registration letters or assessments show your number. 5) Call SARS Contact Centre at 0800 00 7277 — they can verify your identity and provide your number. 6) Visit a SARS branch with your ID document.

How do I register a business or company for a tax number?

Business tax registration is different from individual registration: 1) Companies (Pty Ltd): Automatically registered for income tax when you register with CIPC (Companies and Intellectual Property Commission). You'll receive a tax number within 21 business days. 2) Sole proprietors: Use your personal tax number — business income is taxed as part of your personal income. 3) Partnerships: Each partner uses their personal tax number. 4) Additional registrations needed: VAT (if turnover exceeds R1 million), PAYE (if you have employees), UIF, SDL. Register for these via SARS eFiling after your income tax number is issued.

Calculate your tax obligations

Now that you understand tax registration, use our free salary calculator to see exactly how much tax you'll pay on your income.

Disclaimer: This guide provides general information about SARS tax number registration and should not be considered tax or legal advice. Tax laws and SARS procedures are subject to change. Individual circumstances vary significantly. Always verify current requirements on the official SARS website (www.sars.gov.za) and consult with a registered tax practitioner for personalized advice based on your specific situation. Registration processes and timelines mentioned are typical — actual times may vary based on SARS workload and individual circumstances.