Home Office Deduction Calculator
Home Office Deduction Calculator
To calculate your home office tax deduction in South Africa: divide your dedicated office area by your total home area to get the floor area ratio.
Uses SARS 2026/2027 rates, checked 29 July 2026.
Home Office Deduction Calculator
Only self-employed people, and employees who earn more than half their pay from commission, can usually claim.
Home Office Deduction
Your annual deduction will show here.
How to calculate your home office tax deduction in South Africa
How it's worked out
Calculate your allowable home office tax deduction in South Africa using the SARS floor area ratio method. For self-employed, sole traders and commission earners.
Multiply this ratio by your household expenses (rent or bond interest, electricity, rates, repairs). For example, if your office is 12m² in a 120m² home (10% ratio), and your monthly expenses total R15,000, your monthly deduction is R1,500 (R18,000 annually). You must have a room used regularly and exclusively for work.
Legislative note: this calculator applies the proportional apportionment method commonly aligned with Section 23(h) guidance for mixed-use expenditure, together with SARS home-office eligibility tests.
Check Your Eligibility
Self-Employed
You qualify if you have a dedicated office used regularly and exclusively for work.
Commission Earner
Employees earning more than 50% of income from commission may claim home office deductions.
Salaried Employee
Salaried employees earning less than 50% from commission generally cannot claim. Your employer must not provide an office.
Home Office Deduction Frequently Asked Questions
Common questions about claiming home office expenses from SARS
Next step
Add up a year of rent, electricity and rates from your bank statements.
Related guides
Key terms
Important Disclaimer
Accounter does not provide accounting, tax, business or legal advice. This calculator has been provided for information purposes only. You should consult your own professional advisors for advice directly relating to your business.