Marketplace Fee Analysis
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Service — Fee Analysis

Know what each platform is actually costing you

Platform fees arrive in many forms and rarely in one statement. This quarterly analysis maps every category of charge to the revenue it corresponds with, so the true cost of each channel is no longer a figure you have to estimate.

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What this delivers

The full cost picture of every marketplace you use

Most sellers have a general sense of what they're paying in fees. They know Amazon takes a referral percentage, that FBA has its own rates, that advertising spend compounds on top. But translating that into a precise number — by channel, by fee type, relative to revenue — is rarely straightforward from platform reports alone.

The Marketplace Fee Analysis does that translation for you, each quarter. Every charge is categorised, mapped to the relevant revenue, and presented with a comparison to the previous period. You end up with a clear view of what each platform relationship is costing and whether that cost is trending in a useful direction.

Referral and commission fees broken down

Platform commission charges categorised by type and channel, not lumped into a single deduction line at the end of each payout.

Fulfillment charges mapped clearly

Storage, pick-and-pack, and shipping charges separated from selling fees so the cost of logistics is visible on its own line.

Advertising spend attributed to revenue

Platform advertising costs mapped against the sales they correspond with, so the effective cost of that spend is something you can actually evaluate.

Trend comparisons quarter over quarter

Each report includes a comparison to the prior period, so you can see whether fee costs are rising, stable, or improving relative to your revenue.


Where the difficulty lies

Platform fee structures aren't designed to make comparison easy

Each marketplace reports its fees differently. Amazon separates referral fees, FBA fees, and advertising in different sections of Seller Central. eBay's final value fees sit in a separate managed payments statement. A Shopify store has its own transaction fees that vary by plan. None of these match up by default.

When you're running multiple channels, pulling together a coherent view of what you're actually paying — and what that represents as a proportion of revenue — requires gathering data from several sources, converting it into consistent categories, and then doing the comparison. Most sellers either don't have time for that or aren't sure the figure they arrive at is reliable.

The result is that decisions about platform prioritisation, advertising spend, or fulfillment strategy get made on rough estimates rather than documented figures. That's not a criticism — it's a gap in the information available. The fee analysis fills that gap.


The analysis approach

Every fee type, every channel — categorised consistently

The analysis pulls fee data from each platform and applies a consistent categorisation framework. This means that even when Amazon calls something a "referral fee" and eBay calls the same thing a "final value fee," they sit in the same category in your report — making cross-channel comparison reliable.

Referral & commission fees

The percentage-based selling fees charged by each platform on every transaction. Recorded separately for each channel so the selling cost on each marketplace is clearly visible.

Fulfillment charges

FBA fees, storage charges, pick-and-pack costs, and platform-managed shipping. Broken out separately from selling fees so logistics costs can be evaluated on their own.

Advertising costs

Sponsored listings, display placements, and other in-platform advertising spend. Mapped against the revenue generated in the same period for a clearer view of effective cost.

Subscription & fixed fees

Monthly platform fees, professional selling plan charges, and store subscription costs. These are fixed regardless of revenue, so they're treated separately in the analysis.


Working together

A quarterly report that actually helps you decide things

The analysis is delivered quarterly — timed to align with the natural rhythm of reviewing how a business is performing. Each report covers the three-month period just ended, with a comparison to the previous quarter built in.

The format is designed to be readable without accounting expertise. The figures are documented and categorised, but the report is written to be useful to someone making operational decisions, not just someone preparing a financial statement.

If something in the report raises a question — a fee that's increased, a category that looks unusual — you can ask about it. We explain what we found, not just what the number is.

01

Initial setup

We agree on which platforms to cover and what access is needed. The first report takes a little longer to establish the baseline figures; subsequent quarters run faster.

02

Quarterly data gathering

Fee data is pulled from each platform at the end of each quarter. No input required from you during the gathering process.

03

Analysis and categorisation

Charges are mapped to the consistent category framework and compared against the previous quarter's figures.

04

Report delivery

You receive the completed report with a brief summary of notable changes and an offer to answer questions on anything in it.


Pricing

A fixed quarterly fee covering the full analysis

The Marketplace Fee Analysis is priced at a single quarterly rate regardless of how many platforms are covered or how many fee categories are involved. There are no per-channel add-ons.

This service works well on its own for sellers who want a clear view of platform costs without the full monthly accounting service, and it pairs naturally with the E-Commerce Financial Management service for a more complete financial picture.

Discuss this service with us

Quarterly investment

$380 USD / quarter

Included each quarter:

  • Full fee categorisation across all your platforms
  • Referral, fulfillment, advertising, and subscription fees separated
  • Fees mapped to corresponding revenue by channel
  • Quarter-over-quarter trend comparison
  • Summary of notable changes with context
  • Questions answered on anything in the report

Delivered within two weeks of each quarter's close


The methodology

Consistent categorisation, quarter after quarter

The value of a fee analysis depends on the categories being applied consistently — both across channels within a single report, and across quarters when comparing periods. We use a fixed classification framework for all fee types, which means the figures in your Q1 report and your Q3 report are directly comparable without any translation work on your part.

4

Core fee categories

Referral fees, fulfillment charges, advertising costs, and fixed subscriptions — applied consistently across every platform and every quarter.

Q

Quarterly delivery schedule

Aligned with the natural cycle for reviewing business performance. Four reports per year, each with a comparison to the prior period built in.

Fixed framework

The same categorisation method applied every quarter, so reports from different periods are directly comparable without adjustment.


Our commitment

Accurate figures you can actually use

If a fee has been miscategorised or a platform's data hasn't been correctly incorporated, we correct the report. The analysis is only useful if the figures in it are right.

There's no commitment required before an initial conversation. If you'd like to understand how the analysis would work for your specific channel setup before deciding, we're happy to walk through that without any pressure.

Categorisation errors corrected at no additional charge

If something in the report is wrong, it gets fixed. You won't receive a revised report only to find a new invoice alongside it.


Getting started

The first step is a short conversation

Let us know which platforms you sell on and whether you have any existing fee data or reports you'd like us to work from. We'll come back with a clear description of how the analysis would be structured for your specific setup.

1.

Contact us via the form below or at [email protected], listing the platforms you currently sell on.

2.

We'll describe how the fee analysis would be structured for your channels and what the first quarter's report would cover.

3.

Once agreed, we establish the data access needed and confirm the timing of the first report delivery.

Get in touch

See what your platforms are actually costing

If you'd like a clear, documented picture of your fee structure rather than a working estimate, this service is worth discussing. There's no commitment involved in reaching out.

Contact Brevmist

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