BUSINESS AND TRAINING
The tools of the trade: Using simple finance systems to stay in control
By
Rob Burger, small business finance and strategy consultant, 2XR Business Solutions
Most tradespeople don’ t lose money because they’ re bad at their craft. They lose money because they don’ t track it properly.
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You can be flat-out busy, working long hours, with jobs booked weeks ahead, and still run into cash flow problems. The difference between a business that survives and one that struggles usually comes down to one thing: simple financial systems.
You don’ t need fancy accounting software. You don’ t need to be a finance expert. You just need a few practical tools and the discipline to use them. All you need is a basic computer with a spreadsheet. If you don’ t have a computer, an A4 notebook will also work.
Start with a simple job tracking spreadsheet A basic spreadsheet is still one of the best tools available. It gives you control and visibility without complexity.
Create a table and track each job with the following columns:
• Customer name
• Job description
• Quoted amount
• Labour cost( your time or staff time)
• Materials cost
• Total cost
• Profit
• Invoice number
• Paid( Yes / No)
• Payment date
This immediately shows you which jobs are making money and which ones aren’ t. Many tradespeople only look at money in the bank. That’ s dangerous. A spreadsheet tells you whether you are actually profitable.
It also helps with pricing. After a few months, patterns emerge. You start seeing which types of jobs are worth chasing and which ones to avoid.
Invoicing is important. Handwritten invoices and WhatsApp payment requests create confusion. They also delay payment.
Use a simple invoicing tool. It can be:
• Excel invoice template
• PDF invoice from Word
• Basic invoicing app
• Accounting software
The important thing is consistency. Every invoice should include:
• Your business name and contact details
• Customer name
• Job description
• Amount
• Payment terms( for example: Due on receipt)
• Bank details
• Invoice number
Numbered invoices matter more than people think. They help you track missing payments and avoid disputes.
Send invoices immediately after completing the job. Not later that evening. Not the next day. Immediately. The faster the invoice goes out, the faster you get paid.
Track payments properly This is where many small businesses fall down. They send invoices but don’ t track whether they’ ve been paid.
Create a simple‘ Debtors List’ with:
• Invoice number
• Customer name
• Invoice amount
• Date issued
• Due date
• Paid( Yes / No)
• Days outstanding
Review this list once a week. It takes five minutes and keeps your cash flow under control.
If an invoice is overdue:
• 7 days: friendly reminder
• 14 days: follow-up call
• 30 days: stop new work until paid
This isn’ t being difficult. It’ s running a business.
Another practical step is to sign up for a mobile card payment solution where you use your cell phone as a credit card machine or a small card machine. These systems allow you to take card payments on the spot. When the job is finished, ask the customer to pay immediately. No invoicing delays, no chasing payments, and no awkward follow-ups. The money is in your account within a day or two, and your cash flow improves instantly. Follow up and send an invoice. Many tradespeople who switch to on-site card payments find that late payments almost disappear.
Separate your business and personal money One of the simplest but most powerful tools is a separate business bank account. All customer payments go into this account. All expenses come out of this account. This makes it easy to see:
• What you earned
• What you spent
• What is left
Pay yourself a set amount weekly or monthly. This builds discipline and stops you from dipping into business cash.
Keep it simple and consistent You don’ t need complex systems. You need consistent ones. A spreadsheet to track jobs. A simple invoice template. Mobile credit card machine. A payment tracking list. A separate bank account. That’ s it. These tools won’ t take more than 30 minutes a week to maintain. But they will change how you see your business. You’ ll know where you’ re making money, who pays late, and whether your pricing works. Good tradespeople focus on the job. Successful tradespeople also track the numbers. PA
About the author: Rob Burger CA( SA) is a finance and strategy consultant who helps small businesses, contractors and professionals simplify their finances and grow sustainably. He has 30 years of experience in business and now focuses on helping SMEs build stronger, more profitable enterprises. Email robburger @ 2xrconsulting. co. za, or contact + 27( 0) 61 588 0497.
Supplied by Rob Burger
June 2026 Volume 32 I Number 04 www. plumbingafrica. co. za