South African bond-repayment calculator. Monthly bond repayment and total interest, at the live prime rate by default. Computed from officially-sourced tables. Example: /calc/bond-repayment?amount=1500000&years=20

South African company-car calculator. Company car fringe benefit: monthly taxable value (3.5%/3.25%) and PAYE impact. Computed from officially-sourced tables. Example: /calc/company-car?vehicle_value=450000&maintenance_plan=true&annual_income=720000

South African property-costs calculator. Total statutory costs of buying a property: transfer duty plus Deeds Office transfer, bond and lodgement fees. Computed from officially-sourced tables. Example: /calc/property-costs?price=2500000&bond=2000000

South African net-salary calculator. Net take-home from a gross monthly salary: PAYE plus employee UIF at the current tables. Computed from officially-sourced tables. Example: /calc/net-salary?monthly=50000&age=35

South African bond-price calculator. Clean price of a fixed-rate bond from face value, coupon and years to maturity, at a given yield (defaults to the live R2030 benchmark yield). Computed from officially-sourced tables. Example: /calc/bond-price?face_value=1000000&coupon_percent=8&years_to_maturity=4

South African sbc-tax calculator. Small Business Corporation income tax at the progressive SBC rates (eligibility conditions apply). Computed from officially-sourced tables. Example: /calc/sbc-tax?annual_taxable_income=600000

South African crypto-classify calculator. Indicative capital-vs-revenue classification of crypto gains by weighing the classic SA case-law factors: intention, holding period and trading frequency. Computed from officially-sourced tables. Example: /calc/crypto-classify?holding_period_months=30&trades_per_month=1&intention=hold_long_term

South African home-office-expense calculator. Deductible home office expense by area apportionment (s23(b)/(m)). Computed from officially-sourced tables. Example: /calc/home-office-expense?office_area_m2=12&home_area_m2=180&annual_home_costs=240000

South African local-interest calculator. Taxable local interest after the age-based annual exemption. Computed from officially-sourced tables. Example: /calc/local-interest?amount=40000&age=40

South African wear-and-tear calculator. Annual and monthly straight-line wear-and-tear allowance for an asset, using the SARS BGR7 write-off period schedule. Computed from officially-sourced tables. Example: /calc/wear-and-tear?asset=Passenger%20cars&cost=350000

South African income-tax calculator. SA personal income tax for the current tax year: annual and monthly tax, effective rate, age rebates applied. Computed from officially-sourced tables. Example: /calc/income-tax?annual=750000&age=40

South African net-to-gross calculator. Gross monthly salary required to net a target take-home amount, at the current tax tables. Computed from officially-sourced tables. Example: /calc/net-to-gross?net_monthly=40000&age=35

South African provisional-tax calculator. Estimated first and second provisional tax payments (50/50 split) net of employees' tax already withheld, with the current filing deadlines. Computed from officially-sourced tables. Example: /calc/provisional-tax?annual_taxable_income=900000&employees_tax_paid=180000

South African donations-tax calculator. Donations tax owed on a donation, after the annual natural-person exemption. Computed from officially-sourced tables. Example: /calc/donations-tax?amount=500000

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