How to Check an Extra-Income Promise Before You Pay
Before paying for an extra-income idea, identify the paying customer, the work required and every cost between a sale and money you can keep. Calculate what happens if sales are weak. A testimonial or earnings screenshot cannot establish that the same result is likely for you.
What exactly is the offer promising?
Write down the claim in ordinary language. Is someone selling education, software, an investment, a business franchise or access to customers? The risks and checks differ. A course about a business is not the business itself.
Ask how much work the proposed income requires after launch. Customer messages, maintenance, refunds and marketing all use time. A digital product may be delivered automatically while the business around it remains very active.
This is a checking process for an offer you have encountered. It is not a list of recommended side hustles, and it does not assume that everyone has spare time or money to risk.
How can you separate sales from money you keep?
Revenue is the total from customers before costs. Contribution per sale is the price less costs attached to that sale. Profit also has to cover fixed costs. Tax, refunds and payment delays can further change the cash available.
List the costs before looking at the seller’s largest screenshot. Include platform charges, supplies, software, advertising and support. Where a cost is unknown, label it unknown. A blank cell is not the same as zero.
If the offer depends on paid advertising, ask how the seller measured acquisition cost and whether unsuccessful campaigns are included. A selected successful week cannot tell you what a new business will spend finding customers.
What does break-even look like?
Suppose a hypothetical downloadable product sells for £12. Payment and delivery-related costs are assumed to be £2 per sale. That leaves £10 per sale towards £180 in fixed setup costs.
It takes 18 completed, non-refunded sales to cover those setup costs. That is before paying for the creator’s time or tax. The numbers are invented and do not describe any named platform’s fees.
Worked example: 30 sales does not mean £360 profit
| Sales | Revenue | Variable costs | Profit before tax and labour |
|---|---|---|---|
| 10 | £120 | £20 | −£80 |
| 18 | £216 | £36 | £0 |
| 30 | £360 | £60 | £120 |
Each row subtracts the same £180 fixed cost once. At 30 sales, £360 − £60 − £180 leaves £120. If creating and running the project took 20 hours, that is £6 per hour before tax, with no separate wage deducted.
The hourly comparison helps you judge the trade-off; it is not a minimum-wage assessment or a prediction of future earnings. Refunds, advertising, further software subscriptions and other unlisted costs would reduce the result.
US readers can model the same arithmetic with actual dollar prices and fees. These figures are not currency conversions or evidence of typical sales.
What evidence would make an earnings claim more useful?
Ask for the period covered, the number of participants, the proportion who earned nothing and whether costs are deducted. Check whether the example came from an established audience rather than a first-time seller.
A seller’s own experience may be real and still be a poor guide to yours. They may have years of experience, existing customers or access you cannot buy with the course.
Treat testimonials as individual accounts unless there is good evidence of representative results. “Results vary” does not explain the variation. Nor does it repair a headline that promises an outcome the evidence cannot support.
Which sales tactics deserve particular caution?
The FTC’s guidance on business and coaching scams warns about guaranteed earnings, large returns for little work and expensive follow-on coaching. An inexpensive introduction can be the start of a much larger purchase.
Read the written price, renewal, cancellation and refund terms before paying. Check the identity of the seller through sources you find independently. Keep the offer and terms you relied on.
A genuine deadline may exist, but it does not remove your need to understand the purchase. If you cannot investigate before the countdown ends, letting the countdown end is an available option.
How much can you afford to test?
Set a cash limit and a time limit before you begin. Use money that can be lost without missing essential bills or existing commitments. If that amount is zero, a paid test is not affordable today.
A small test should answer a specific question, such as whether anyone will pay for a clearly defined service. It does not need a full website, annual software plan and matching stationery to qualify as a test.
Decide in advance what would make you stop, revise or continue. Money already spent does not make the next purchase worthwhile. Review new spending on the evidence available now.
What if the offer is actually an investment?
Use a different set of checks. In the UK, the FCA Firm Checker lets you check firms and relevant permissions. Authorisation does not make an investment suitable or protect you from ordinary market losses.
In the US, Investor.gov’s fraud guidance warns that new technology can be used to dress up misleading investment claims. A technology label does not establish an economic advantage.
Do not move money because someone calls a scheme “passive income”. Find out what asset, contract or business actually generates the payment, how you can exit and what you could lose.
What is the next useful step?
Take one offer and complete four lines: total cash at risk, hours required, sales needed to break even and evidence for those sales. If any line is missing, investigate before paying.
The Slow Money Movement™ is an education publisher. The same standard belongs on its own commercial claims: useful explanations, visible limitations and no promise that buying a resource will produce income.
Frequently asked questions
Is passive income always a scam?
No. But the label does not tell you how much work, capital or risk is involved. Assess the actual arrangement.
Should I borrow to buy a course?
No general article can establish that borrowing is suitable. Include interest and repayments in the downside, and do not fund uncertain earnings at the expense of essentials.
Does reaching break-even mean the project worked?
No. You still need to account for your time, tax, continuing costs and whether demand persists.
Sources and calculation notes
- FTC: Business offers and coaching scams: Earnings promises and pressure-selling warning signs.
- FCA: Firm Checker: Check a firm and permissions for the relevant service.
- SEC, NASAA and FINRA: AI and investment fraud: AI misinformation and investment fraud warning, January 2024.
Sources checked 27 September 2026. Original source dates are retained where shown; an access date does not make older guidance new.
Calculation method: Contribution = £12 − £2 = £10. Break-even = £180 / £10 = 18 sales. Profit = sales × £10 − £180. Effective hourly amount = £120 / 20, before tax.
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