How Online Financial Services Actually Work
Where the money comes from, who pays for what, and why the same product can cost you nothing in one place and something in another.
Every online financial service is somebody's business model. Once you can name the model, almost everything odd about the offer stops being mysterious: the zero-interest period, the free account, the pre-approval that arrives in fifteen seconds, the comparison site that ranks one provider first.
This guide covers the four models you will actually meet, what each one does to the price you are quoted, and the question to ask that tells you which one you are dealing with.
Model one: the lender lends its own money
A bank or credit union that holds deposits and lends them out is the oldest model and still the most common. It makes money on the spread: the difference between what it charges you to borrow and what it pays the depositor. It also makes money on fees — account fees, overdraft fees, and fees for things like being in the wrong account tier.
The commercial consequence is that everything is negotiable in principle and nothing is negotiable in practice. Loan officers have authority; websites and apps do not. The rates advertised to new customers are the headline rate, and the rate you are actually offered depends on your risk profile as the lender sees it. If you are quoted materially worse than the advertised figure, the reason is nearly always the internal risk assessment, and it is usually not negotiable.
Model two: the intermediary earns a commission
A broker, a marketplace or a comparison site does not lend. It arranges the introduction and is paid by the provider for the customer, usually on a per-application basis. The customer pays nothing directly, which is why the service can be free.
This model explains a great deal. It explains why a comparison site ranks some providers above others: commission structures differ, and larger providers usually pay more. It explains why a soft credit check is described as having no impact on your file — the broker wants you to be able to apply again, so checking does not penalise you. And it explains why the quoted rate is often the best rate available to the best applicant in the pool rather than a rate you personally have been offered.
Model three: the flat-fee subscription
Budgeting tools, portfolio trackers, premium research services and identity-protection products are sold on a subscription. The economics are simple and worth understanding: the free tier exists to get you in the door, and the upgrade is justified by a feature rather than by a better price on something you were already getting.
Because the margin comes from features, the honest question is not "is this good value?" but "which specific feature will I use?" Paying annually for a tax optimiser you will use twice a year is a loss, however good the software is. The same services often have a free tier that covers the genuinely useful core.
Model four: the data and the advertising
Some services appear free because the product is your data or your attention. A free credit-monitoring tier may be funded by offers routed to the credit panel. A free file-hosting or VPN service may be funded by advertising. Sometimes a VPN is funded by selling aggregate browsing data, and sometimes it is not — this is exactly the kind of claim you should check the actual policy for rather than a review site.
None of this makes a service bad. It makes the question sharper: if the product is free, what am I paying with? A direct answer is a good sign. A vague one is a reason to find out before you upload anything.
How this shows up in the price you see
| What you see | What it usually means | The question to ask |
|---|---|---|
| "0% APR for 12 months" | Interest is not zero, it is deferred. Miss the end date and back interest can apply to the whole balance | What happens to the total balance if I still owe anything at the end of the period? |
| "No monthly fee" | The monthly fee is zero. Overdraft, transfer, or going in and out of balance is where the money is | List every charge that can apply to this account, including the ones I will not normally incur |
| "Free forever" | The provider earns from a different product: referrals, advertising, data, or a paid upgrade | How does this company make money, and does that change if I never upgrade? |
| "Pre-approved" | A marketing check that does not know your actual terms yet | Is this a real offer with a rate, or an invitation to apply? |
| "Comparison site, best rate first" | Ranking influenced by commission, not necessarily by the total cost for you | How are you paid, and can I see the ranking criteria? |
What to do with this
-
Identify the model
Who funds the offer, and what do they earn from it? If the page does not make that clear, assume it is commission.
-
Find the total cost
Not the headline rate. The total amount you will pay or receive, including fees, over the whole period.
-
Check what happens if you get it wrong
Late fees, deferred interest, rate reversion, and what triggers them. This is the part that turns a good offer into a bad month.
-
Verify the provider independently
Check the company against a regulator's register rather than trusting a badge on the comparison page.
Once you can name the model, most of the rest is arithmetic. The guide to comparing financial products turns that arithmetic into a repeatable comparison, and the terminology guide covers the words the contracts use.
Tools and resources mentioned here
Editorial comparison content for financial products, with calculators for loans, cards and savings.
Paid subscription to SEC filings, insider transaction records and analyst reports, searchable by company or person.
Common questions
Frequently asked questions
Is a comparison site trustworthy?
It is a useful research tool and a commercial intermediary. Both can be true. The thing to check is disclosure: does the site state how it is paid, and can you see the criteria behind the ranking? If it does, it is doing a useful job. Verify the final decision with the provider directly, and check the provider against a regulator's register.
Why do I get a worse rate than the one advertised?
Advertised rates are the headline rate for the best-risk applicant. Your offer reflects the lender's assessment of your risk, which uses your file, your income stability and their own lending policy. You can improve it slowly by keeping utilisation low, paying on time and having a longer credit history, but you cannot negotiate it in a chat window.
What is the difference between a hard and a soft credit check?
A soft check is an enquiry that other lenders cannot see and that does not affect your file — comparison sites use these. A hard check is recorded against your file and does affect it. A hard check for an offer you apply for is normal and expected; multiple hard checks for applications you never made are worth investigating.
Does applying through a broker cost me more?
Usually not, because brokers are usually paid by the provider. The costs to watch are the ones a broker cannot avoid: a search fee, an arrangement fee, or an ongoing commission that is rolled into the product price. Ask for the total amount you will pay in the first year, not the headline rate.
Where to go next
These are the services referenced above. Compare them on your own terms before you sign up for anything.