Business Calculators
Business calculators for South African owners — VAT, profit margin, break-even and reverse VAT.
Built around the South African 15% VAT rate and standard small-business maths, these tools help you price products, reconcile invoices and understand whether your business is actually profitable.
Practical tools for pricing and cash flow
Small-business calculations often need to happen quickly: checking whether a quoted price includes VAT, finding a selling price from cost and markup, or working out how many units must be sold before fixed costs are covered. QuickCalc business tools keep those calculations transparent and repeatable, with the formula shown on each calculator page.
Use the result as a decision prompt
A profit or break-even result is only as good as the inputs. Include realistic overheads, supplier increases, card fees, delivery costs, bad debt and seasonal changes where relevant. The calculators are useful for scenario planning and invoice checks, but formal tax returns, VAT201 submissions and management accounts should still be reviewed by a qualified accountant or tax practitioner.
VAT Calculator
Add 15% VAT to a price
VAT Reverse Calculator
Extract VAT from a VAT-inclusive total
Break-even Calculator
Units needed to cover fixed costs
Profit Calculator
Profit and margin from revenue and cost
Markup Calculator
Set a selling price from cost + markup %
Margin Calculator
Gross margin from revenue and cost
ROI Calculator
Return on investment percentage