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STC trader with no fees: what is the catch, and what is the spread?

Short answer

A trader with no fees earns from the spread: the gap between the rate it pays you and the price at which it sells certificates. That is fair if the rate is published and you can see it. The catch to look for is a low rate, slow payment or conditions that undo the saving.

Written and checked by the Energy Merchants desk · Reviewed 3 October 2026 · For installers

Two searches, one worry: what is the catch when a trader says no fees, and what does the spread mean? Both come down to how a trader makes a living.

Fees and spread are two ways to earn the same money

A trader has costs: it validates your claims, takes on registry and market risk, funds your payment before it sells the certificates and employs people. To cover them it can:

  1. charge a fee, which you can see on the statement, or
  2. keep a spread, which is the gap between what it pays you and what it sells at.

“No fees” means the first is zero. It does not mean the second is. That is honest and normal, provided you can see the rate.

What the spread is

If the market price is about $38 to $40 for registered STCs, and a trader pays you less than that, the difference is the trader’s margin. It covers the trader’s costs and risk. A narrow spread with fast settlement is good value. A wide spread with slow settlement is not.

Reference points at the time of writing:

  • STC spot market: roughly $38 to $40
  • STC clearing house ceiling: $40

See STC trading price versus the clearing house for how to read the gap.

Where the catch can hide

Possible catch How to spot it
A lower rate that cancels the “no fee” saving Compare net dollars per job
Slow payment Check the term and the trigger
Rate that moves between lodgement and payment Ask when the rate is locked
Volume minimums Read the tier terms
Recall clauses Check what happens if a claim fails
Exit rules Can you leave with claims in flight?

What a trustworthy no-fee offer looks like

  • The rate is published and dated, not “call for pricing”.
  • The lock point is clear: for example, locked on lodgement of a complete claim.
  • Settlement timing is stated in writing.
  • The terms say there are no processing, admin, registry or subscription fees.
  • Someone named is accountable.
From the desk: Take your last five jobs and ask two traders to price them. The net deposits will tell you more than any banner.

What this means for installers

We charge zero fees, ever, and publish the rate daily on pricing. We still earn from the difference between what we pay and what certificates sell for, and we do not pretend otherwise. What you get is the rate you see, locked when a complete claim is lodged, settled in 24 hours for established partners, with a named account manager.

For the fee models other traders use, see trader fees per certificate and per job. For a wider view of the market, read how to compare STC traders and the Partner Program.

Follow-up questions

People also ask

How does a no-fee trader make money?
Through the difference between what it pays you and what it sells certificates for. That is the spread.
Is a spread unfair?
No, it is how a trader covers validation, holding and market risk. It becomes a problem only when it is hidden or very wide.
How do I see the spread?
Compare the trader's rate with the market. The STC spot has been roughly $38 to $40, and the clearing house ceiling is $40, at the time of writing.

Got a claim to lodge this week?

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