Cash Flow Discipline: How to Manage Working Capital and Protect Profit Margins
By Cosmas Mtsikwa | Published on 2026-03-22T11:00:00.000Z | undefined
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A business can show robust accounting profits on paper and still go bankrupt next Tuesday if cash is tied up in overdue invoices. Cash flow management is the oxygen of commercial survival.
### The 50-30-20 Upfront Payment Rule
Never finance client projects out of your personal pocket. For customized work or trade projects:
- Require 50% deposit before ordering materials or scheduling dates.
- Request 30% milestone payment at project midpoint.
- Bill the remaining 20% immediately upon satisfactory delivery.
### Understand the Difference Between Markup and Margin
Confusing markup with gross margin is a classic pricing trap. If a product costs R100 and you sell it for R150, your markup is 50%, but your gross margin is 33.3%. Use our Free Profit and Markup Calculators on CosyInspire to ensure you never undercharge for overheads.
### Enforce Strict Credit Terms
Clearly state your payment deadline on every invoice—such as "Payable within 7 days via EFT". Follow up on day 8 with polite, automated reminders. The faster you collect receivables, the more resilient your operations become.