If you work from home in South Africa, the phrase "home office tax deduction" can sound broader than it really is. SARS does not treat every remote-work setup as a deductible home office. A laptop on the dining room table is not enough. A desk in a bedroom corner is usually not enough. The claim is about a dedicated, equipped part of the home that is used for trade in a way the Income Tax Act recognises.
The safest way to think about it is this: before you calculate a rand amount, prove that the space qualifies. Then prove how you calculated the claim. Then keep the documents in a format SARS can inspect if your return is verified.
Who can claim home office expenses?
SARS says an employee who works from home may be allowed to deduct certain home office expenses on a pro-rata basis if the requirements in the Income Tax Act are met. The key requirements are strict:
- The room must be regularly and exclusively used for your trade, such as employment.
- The room must be specifically equipped for that work.
- If your remuneration is mainly salary, more than 50% of your duties must be performed in that home office.
- If more than 50% of your remuneration is commission or variable pay, more than 50% of those duties must be performed away from an office provided by your employer.
The words "regularly and exclusively" matter. A room that doubles as a guest room, storage room, TV room, or general family space is difficult to defend. SARS also has a home office questionnaire that asks directly about the dedicated room, equipment, regular use, and exclusive use.
What expenses may be included?
For qualifying home offices, SARS lists typical premises-related costs such as rent, repairs to the premises, rates and taxes, cleaning, and electricity. These are not automatically deductible in full. They are usually apportioned because only part of the home is used for trade.
SARS also refers to possible separate deductions for wear and tear on items used for trade in the office, including office equipment, furniture, fittings, and related repairs. Keep the distinction clear: premises expenses are usually apportioned by floor area, while equipment claims may need their own calculation and proof.
If you are employed or hold an office, do not include mortgage bond interest for current-year home office claims. SARS states that, from the 2023 tax year, mortgage interest is no longer deductible for employees or office holders claiming home office expenses.
How to calculate the home office deduction
SARS accepts floor-area apportionment as the correct method for expenses linked to the premises. The formula is:
Home office area divided by total residence area, multiplied by qualifying total costs.
For example, if the dedicated office is 12 square metres and the total home is 120 square metres, the office is 10% of the home. If qualifying premises costs for the year are R24,000, the apportioned amount would be R2,400 before considering any other limitations or facts.
Keep the calculation simple and traceable. SARS may ask how the area was measured, which invoices were included, and why the room qualifies. A spreadsheet, photos of the dedicated office, invoices, and a short employer confirmation can make the claim easier to support.
Where to claim it on ITR12
SARS says qualifying home office expenses are entered next to source code 4028 in the "Other Deduction" container on the ITR12. If the section is not visible, the ITR12 form wizard may need the question about other deductions to be answered so that the container is added.
Documents to keep
For a home office claim, keep documents that prove both the qualification and the amount. Useful records include:
- An employer letter confirming the work-from-home arrangement and duties performed from home.
- Measurements of the home office and total residence floor area.
- Rental invoices or lease records, if rent is part of the claim.
- Municipal rates, electricity, cleaning, and repair invoices where relevant.
- Receipts for office equipment, furniture, and repairs.
- Photos showing that the room is specifically equipped and not used for another purpose.
- Your calculation showing the floor-area percentage and total amount claimed.
SARS record-keeping guidance generally requires supporting documents to be kept for five years from the date a return is submitted. Keep them in an orderly, safe place and in a format that can be inspected if SARS requests them.
eFiling upload tips
If SARS requests supporting documents, the file must be ready for upload. SARS says eFiling supporting documents should be in accepted formats, under 5MB per document, scanned at 300 DPI or lower, and not password protected. File names with special characters can also cause upload failures.
That matters for home office claims because the evidence often comes from many places: invoices, employer letters, floor plans, photos, receipts, and calculations. A phone photo of each page can quickly become too large, while a bank or utility PDF may be encrypted. Scan clean copies, name them plainly, and keep related proof together.
Scan home office receipts, employer letters, and calculations, then export SARS-ready PDFs under 5MB at 300 DPI.
Common mistakes
- Claiming a shared room that is not used exclusively as a home office.
- Claiming because you sometimes work from home, without meeting the more-than-50% duties test.
- Including mortgage bond interest when you are an employee or office holder.
- Keeping totals but not the invoices and calculation behind them.
- Uploading oversized, colour scans or encrypted PDFs when SARS asks for proof.