ITR12 Guide: How to Complete Your South African Tax Return

The ITR12 is the individual income tax return used by South African taxpayers to declare income, deductions, credits, and PAYE already withheld for a specific tax year. SARS opens filing season for individual taxpayers each July. Employees with only salary income and a correctly submitted IRP5 may qualify for auto-assessment without needing to file manually - but everyone else must file or correct a pre-populated return (SARS: Filing Season, 2024).

Key Takeaways

File the ITR12 if you have income not fully taxed at source (rental, investments, freelance) or if SARS issued a notice requiring a return.

Always compare pre-populated figures against your own certificates - SARS data comes from third parties and may be incomplete or incorrect.

Supporting documents (certificates, invoices, bank statements) must be kept for at least five years.

Respond to SARS verification requests within the stated deadline - late responses can result in deductions being disallowed.

Who needs to file an ITR12?

SARS determines filing obligations based on income types and thresholds (SARS: Filing Season). You must file if:

SARS has issued a notice specifically requiring you to submit a return.
You received an auto-assessment that needs correction.
You have income that was not fully taxed at source - rental income, investment returns, freelance fees, or business income.
You want to claim deductions or credits not captured automatically (home office, medical out-of-pocket expenses, donations).
You had income from multiple employers during the year.
You are a provisional taxpayer.

Employees with only employment income and a correctly completed IRP5 may qualify for auto-assessment. SARS automatically calculates the tax and issues an assessment. If you accept the auto-assessment without review, it becomes final - so check it against your own certificates first.

What documents to gather first

Work from source documents rather than memory (SARS: Record-keeping):

IRP5 and IT3 certificates from all employers and income sources.
Medical aid annual tax certificate (issued by your scheme, usually by February).
Retirement annuity contribution certificates from fund providers.
Section 18A receipts for donations to approved public benefit organisations.
Rental income records and all expense invoices for the year.
Bank statements for investment accounts showing interest received.
Brokerage statements for shares sold or dividends received.
Prior SARS assessments or notices that affect the current return.

How to approach the form

Pre-populated figures on your ITR12 come from third-party submissions by your employer, medical scheme, retirement fund, and bank. SARS cannot guarantee their accuracy. Before accepting any pre-populated amount:

Compare it against the source document in your possession.
If the amounts match, proceed.
If they differ, contact the relevant institution first to confirm what they submitted, then correct the return accordingly.

Enter only deductions and credits you can support with invoices, certificates, or other documentary proof. A deduction with no supporting document is a verification risk.

Common mistakes to avoid

Leaving out income not pre-populated. Rental income, freelance fees, and capital gains from share disposals often don’t appear in the pre-populated return. Omitting them is a common audit trigger.

Using incorrect banking details for a refund. SARS refunds go to the bank account on your SARS profile. Confirm these details before submitting, especially if you recently changed banks.

Claiming deductions without proof. Home office deductions, medical out-of-pocket expenses, and donations to public benefit organisations are all subject to verification. Have the supporting documents before you claim.

Ignoring SARS document requests. After filing, SARS may issue a verification request. Failing to respond within the stated deadline - usually 21 business days - can result in the queried deduction being disallowed.

Submitting for the wrong tax year. Double-check the return year on the form, especially early in the filing season when the prior year’s return may still be accessible.

Frequently Asked Questions

Who is required to file an ITR12 return in South Africa?

You must file if SARS issued a filing notice, if you have income not fully taxed at source, if you received an auto-assessment you need to correct, or if you want to claim deductions not captured automatically. Employees with only salary income and a correctly submitted IRP5 may qualify for auto-assessment and not need to file manually. Confirm your filing obligation at sars.gov.za/individuals/filing-season/.

How do I access my ITR12 on SARS eFiling?

Log in at sars.gov.za, navigate to the Returns section, and select the ITR12 for the relevant tax year. SARS pre-populates the return with data from third parties - always check these amounts against your actual certificates before submitting.

What happens if I accept an incorrect auto-assessment?

The auto-assessment becomes final at the end of the filing window once accepted. After the deadline, corrections require a formal objection or correction request - more complex than editing the return during the open filing season. If you accept without reviewing, you may miss a deduction or include an incorrect income figure. Always review before accepting.

How long should I keep supporting documents after filing?

SARS requires records to be kept for five years from the date you file the return. For capital assets such as property or shares, keep acquisition records until five years after you eventually dispose of the asset - which may be many years in the future.

What should I do if SARS requests supporting documents after I file?

Read the verification request carefully to identify exactly which amounts are queried. Gather the relevant certificates, invoices, or bank statements. Upload them through eFiling or SARS Online Query System within the specified deadline. Missing the deadline can result in the queried deduction being disallowed without further review.

Sources

SARS: Filing Season - filing dates, who must file, auto-assessment rules, and submission guidance
SARS: eFiling - where to access and submit the ITR12
SARS: Record-keeping - document retention obligations for individual taxpayers

This guide is for general educational purposes only. Filing dates, auto-assessment eligibility, and form structure can change - verify current requirements with SARS before filing.