Can working from home automatically make my household costs deductible?

Start with eligibility rather than the size of the bill

A large electricity or rental bill does not establish a home-office deduction. First identify the work being done, the space used and the rules that apply to your circumstances. A salaried employee, a commission earner and a self-employed person may need different aspects of the analysis considered. Tell the preparer how you earn income rather than describing everyone who works at home as a freelancer.

The SARS home-office guidance requires qualifying space to be specifically equipped and used regularly and exclusively for trade. For salary-based employees, the duties must mainly be performed there; SARS describes this as more than half. It sets out a different employment-use test for qualifying commission or performance-based remuneration.

Those conditions are not satisfied merely by purchasing a desk or receiving permission to work remotely. Establish the actual work arrangement, dates and use of the space. If the facts do not support a claim, increasing the number of bills collected will not fix that underlying problem.

Describe how the space is actually used

Prepare a factual description of the room or area. State what equipment is there, who uses it and whether it has private functions. Be specific about changes during the year. A room used solely for work for one period may have a different use later, and the record should show that sequence.

The SARS interpretation note discusses regular and exclusive use. Occasional work at the dining table should not be presented as the same arrangement as a space dedicated to the taxpayer's trade. A room's name on a floor plan does not determine how it is used in practice.

Photographs, a floor plan and a work diary can help explain the facts, but none should be treated as a magic approval document. Keep them consistent with the actual household arrangement. Do not stage a room for photographs or omit its private use. The review should reach a conclusion from the evidence, not assemble evidence around a deduction already chosen.

Record your work pattern and the period claimed

Keep a practical record of where you worked during the relevant year. For an employee, this might combine the employer's arrangement, attendance information and your own diary. Explain changes in role, office attendance or the ability to work at home. If the employer provides confirmation, ensure it describes the actual dates and arrangement.

• When did home working begin and end during the year?
• Which duties were performed at home and which elsewhere?
• Did the pattern change because of a new role or workplace?
• Was the claimed space available and used as described throughout?
• Does the supporting evidence agree with the proposed period?

These questions help the preparer test the claim. They do not create eligibility where the applicable conditions are absent. For a person with employment and a separate business, explain both activities and how they use the space. Avoid assuming that a rule considered for one income source automatically applies to the other or that the same expense can be claimed twice.

Review the nature of each expense separately

Once the use of the space has been assessed, list the costs you want reviewed. Keep supplier documents, payment evidence and the period covered. Separate premises costs from equipment, improvements and other items. A general household-spending total does not show which amounts might qualify or how they should be treated.

Ask for exclusions and adjustments to be explained. Do not assume every item associated with working at home belongs in a premises calculation. A percentage applied to all personal spending would conceal those distinctions and may produce an unsupported claim.

Use an area calculation only after the tests are met

SARS describes floor-area apportionment for qualifying premises expenses. In a simplified illustration, a qualifying office measures 12 square metres and the relevant total residence area measures 120 square metres. The area fraction is 12 divided by 120, or 10%. This is an arithmetic example, not confirmation that a particular home or expense qualifies.

If an eligible premises-cost pool for the relevant period were R60,000, that fraction would produce R6,000 before considering any other applicable adjustments. The example assumes the area measurements, qualifying use, cost category and period have already been established. Changing any of those facts can change the result.

Keep the measurements and cost schedule behind the calculation. Do not round the office area upwards simply to reach a preferred percentage. Ask the preparer which areas belong in the denominator and whether the space or use changed during the year. Equipment costs should be reviewed under their appropriate treatment rather than automatically multiplied by the same floor-area fraction.

Consider the property position before focusing on the deduction

The home-office decision can have consequences beyond the current return. SARS's guidance flags potential effects on the primary-residence capital-gains treatment when property is disposed of. Review the ownership and use history rather than treating the annual claim in isolation. This article does not calculate a future gain or assume the same result for every property arrangement.

Tell the adviser who owns or rents the property, whether ownership is shared and whether the space has been used for business in earlier years. Keep the relevant acquisition, improvement and use records where they may be needed later. If the property is likely to be sold, raise that fact before approving the current claim.

Compare the full position instead of deciding solely from an expected refund. A proper review should explain the current deduction, any uncertainty and the records that need to be retained for future events. Do not assume the tax system will treat a room as business space for one purpose and ignore that use for every other purpose.

Prepare a file that supports the actual claim

Build one file for the relevant year containing the work arrangement, use evidence, measurements, expense documents and calculation. Label estimates or unresolved questions clearly. If the claim uses only part of the year, show that period in both the supporting schedule and the calculation.

1. Describe the income source and home-working arrangement.
2. Document the space, equipment and actual use.
3. Confirm the applicable eligibility tests with the preparer.
4. Review costs and calculate only the amounts supported.
5. Check the completed return and retain the evidence used.

If SARS later asks for material, respond to the particular request and preserve the response confirmation. The existence of a neat folder does not guarantee acceptance, but it makes the facts and calculation easier to explain. Where the records reveal that an earlier assumption was wrong, address the error through the appropriate process rather than continuing it for consistency with last year.

Get the question reviewed before entering a deduction

Bring the factual file to your personal income-tax return review before deciding the amount to claim. Ask which conditions you meet, which costs are excluded and what explains the calculation. If you operate a business as well as being employed, make the different activities visible.

The useful outcome is a supported decision, whether that results in a claim or no claim. Keep the reasoning with the return so a future adviser can understand it. Revisit the position when your work pattern, space or property circumstances change instead of carrying the same percentage forward automatically every year.