The Deduction Everyone Wants and Many Claim Badly
Work from home as a freelancer and the logic seems obvious: part of the rent, lights, and rates keeps the business running, so part should be deductible. The Income Tax Act agrees — but through a gate, section 23(b), that is narrower than most people assume, and SARS verifies home office claims more aggressively than almost any other line on the return.
The good news for independent professionals: the harshest limitation in this area, section 23(m), targets salaried employees. A freelancer earning trade income deducts home office costs under the general deduction formula in s11(a), read with s23(b)'s requirements. Your position is structurally stronger than an employee's — if the space qualifies.
The Three Tests of Section 23(b)
1. A dedicated part of the home
There must be an identifiable part of the dwelling — a room or defined area — used for the trade. It doesn't need walls and a door in every case, but it needs boundaries you could draw on a floor plan.
2. Regularly and exclusively used
This is where claims die. The space must be used regularly for the trade and exclusively for it. The spare bedroom that hosts guests at Christmas, the study where the kids do homework, the dining table cleared each evening — all fail. SARS interprets exclusivity strictly, and on verification will ask questions designed to surface dual use.
Honest self-test: if a SARS official stood in the room, would everything in it belong to the business? If the answer involves explaining the treadmill, reconsider the claim or reconfigure the room.
3. Specifically equipped for the trade
The area must be fitted out for the work you do — desk, equipment, connectivity, whatever your trade requires. For a designer, a workstation; for a consultant, a functioning office. This test is rarely the problem if the first two pass, but it confirms the space is a place of business rather than a room with a laptop in it.
For freelancers deriving income mainly from their home office, there is no requirement that an employer allows it — that condition applies to employees. Your requirement is simpler: the trade must genuinely be conducted from there, more than half the time, for the space to be your base of operations.
The Apportionment: Floor Area Is the Method
Once the space qualifies, the deductible fraction of occupancy costs is:
Office floor area ÷ total floor area of the home
Measure both, keep the calculation, and be conservative about what counts as office area. A 12m² office in a 160m² home gives 7.5%. That percentage applies to:
- Rent (for tenants) or bond interest (for owners — interest only, never capital repayments)
- Rates and taxes, or sectional title levies
- Electricity and water
- Premises insurance
- Cleaning and repairs benefiting the whole property; a repair to the office itself is deductible in full
Costs that are business expenses in their own right don't get diluted by the percentage: a business fibre line, office equipment (claimed via wear-and-tear allowances under s11(e)), stationery, and furniture used solely in the office are claimed on their own merits.
A worked example
A copywriter rents a 90m² flat for R14,000 a month and uses a 9m² second bedroom purely as her studio — 10%. Rent contributes R16,800 for the year (10% × R168,000). Add 10% of electricity (R1,900), premises insurance (R450), and cleaning (R720): roughly R19,870 deducted against trade income, every year, for space she was paying for anyway. At her marginal rate that's five figures of tax saved across a few years of freelancing — all resting on the room genuinely being a studio and nothing else.
The CGT Trade-Off for Homeowners
One consequence arrives years later. When you sell your primary residence, the first R2 million of gain is normally excluded from capital gains tax. The portion of the home used for trade, for the period it was used for trade, does not qualify for that exclusion — the gain is apportioned by both floor area and time.
For a 7.5% office used for six years in a home owned for fifteen, the taxable sliver is small, and the annual deductions usually outweigh it comfortably. But it is not zero, and homeowners should make the claim knowing the trade-off exists. Tenants face no such issue.
Evidence to Keep
Home office verifications are document requests. Have ready: a floor plan or measurements behind your percentage; photographs of the space; the year's bills for every cost claimed; the lease or bond statements; and your apportionment calculation. Kept as a standing folder updated annually, this turns the most-queried deduction on the freelancer's return into one of the safest.