What to Check Before Making a Business Investment

Every business investment should answer two questions: how much extra profit will it produce, and how long until it pays for itself?

The problem

Owners often justify investments with feelings — 'we need this' — rather than numbers. The result is equipment that doesn't pay for itself and software no one uses.

A small business example

A new $6,000 machine is expected to save $300/month in labor and let the shop take on $200/month in extra work.

Total extra profit ≈ $500/month. Payback ≈ $6,000 ÷ $500 = 12 months.

What the numbers mean

A 12-month payback is acceptable for most small businesses. A 5-year payback usually isn't.

Practical interpretation

ROI and payback don't have to be perfect — they just need to be honest.

Action points

Write down the expected monthly benefit in dollars.
Calculate payback period in months.
Stress-test with a lower benefit (what if savings are half?).
Confirm cash is available without breaking your cash buffer.
Compare to alternative uses for the same money.

Need to calculate this? Visit SME Finance Helper.