FD FeeDeck

Seller operations stack

See what the order keeps before you buy more traffic.

Use FeeDeck when you need to understand why revenue looks healthy but payout still feels weak. The site isolates marketplace take, checkout drag, shipping, 3PL, landed cost, returns, and ad pressure so you can find the exact layer that is distorting the order.

  • 34 calculators
  • 5 seller guides
  • Built for payout-first operator decisions

Start Here

Choose the problem that is making the order look unreliable

Most operators do not need all 34 calculators. They need the right first one. Start from the pressure point below and jump into the shortest route.

Channel payout

The marketplace order looks busy but the payout feels wrong

Check the fee stack before you blame the product or the ad channel.

Checkout drag

The store converts, but the stack is taking too much

Compare platform, processor, installment, and app drag before scaling the offer.

Ops floor

Shipping, returns, or inventory are distorting the order

Clean the operating floor before making decisions about traffic or price.

Calculators

Open the lane that matches the weak point in the order

Each tool in FeeDeck isolates one pressure point in the order. Marketplace fees, blended take, storefront drag, subscription payback, 3PL overhead, shipping burden, return drag, bundle economics, and break-even ROAS all answer slightly different questions, but they belong in the same operating system.

Marketplace fees

Marketplace payout

Use this lane when the gross order value looks fine but the marketplace payout is harder to trust. It now covers Etsy, Amazon, Amazon FBA, eBay, Walmart Marketplace, and TikTok Shop, plus a direct comparison against DTC when the real question is which channel deserves the next order.

Storefront economics

Storefront, offer, and retention drag

When checkout mix matters, compare the net left by Shopify, Shop Pay Installments, Stripe, and PayPal instead of assuming the store stack is too small to move the business. Use AOV uplift, subscription margin, first-order versus repeat math, promotion payback, and discount tradeoff modeling when the order is expanding, but you still need to know whether the extra revenue stays healthy after fee drag.

Traffic pressure

Traffic ceiling

Break-even ROAS belongs here because ad efficiency only makes sense after the order is already carrying product cost, fulfilment, fee drag, and expected return drag honestly. Use the refund-adjusted version when the traffic target starts to look too generous once reverse logistics enter the picture, and ad-to-net margin when you want the spend translated into true retained profit immediately.

Workflows

Three common routes through FeeDeck

The order does not always break in the same place. These are the routes teams most often use when a channel, offer, or ad target stops feeling clean.

Marketplace pressure

“The marketplace order sells, but I do not trust the take-home.”

Run the marketplace fee stack first, then compare it against DTC if the store is also an option before you judge the order on payout margin.

Etsy / Amazon / eBay / Walmart / TikTok Channel Mix Margin Blended Take Rate Marketplace vs DTC Margin Marketplace Payout vs DTC Guide Amazon FBA Payout Margin

Checkout drag

“Checkout is converting, but the store stack is eating the order.”

Compare Shopify, Shop Pay Installments, Stripe, and PayPal drag, then test whether the AOV lift, bundle structure, subscription model, repeat behavior, or discount tradeoff changes the economics before collapsing the order into one payout margin view.

Shopify Fee Calculator Shop Pay Installments AOV Uplift Discount vs AOV Tradeoff Price Pack Architecture Promo Lift Threshold Offer Margin Waterfall Subscription Margin Subscription Payback First Order vs Repeat Retention vs CAC Spread Promotion Payback Bundle Margin Payout Margin

Fulfilment drag

“ROAS looks good in ads, but shipping and returns still make the order feel thin.”

That usually means the acquisition target was set from revenue instead of from contribution. Clean shipping, reorder posture, inventory, and return drag first, then reset the ROAS line with a refund-adjusted breakeven.

Shipping Cost Reorder Point Carrying Cost Inventory Carrying Cost Return Rate Profit Ad to Net Margin Refund Rate Breakeven Break-even ROAS

Guides

Guides that explain the fee logic behind the calculators

These pages help when the search starts with a practical question instead of the exact calculator name.

Marketplace guide

Etsy Fees Explained

A straightforward breakdown of listing fees, transaction fees, payment processing, and offsite ads so the order can be read more clearly.

Read the guide

Ad math guide

How to Calculate Break-even ROAS

A practical breakdown of contribution before ads, why fee-blind ROAS targets are misleading, and how to connect ad efficiency to real order economics.

Read the guide

Landed cost guide

How to Calculate Landed Cost

A practical walkthrough of supplier cost, inbound shipping, duty, and import overhead so the product floor stops being guessed from the wrong number.

Read the guide

Channel guide

Marketplace Payout vs DTC Guide

A practical channel-comparison walkthrough for sellers who need to compare marketplace payout against DTC margin after checkout drag, fulfilment, and CAC.

Read the guide

Margin guide

Gross to Net Merchant Margin Guide

A practical walkthrough for turning gross revenue into net merchant margin by stripping out fee drag, fulfilment, offer pressure, and acquisition in the right order.

Read the guide

How FeeDeck works

Built as an operator reference layer, not just a fee widget collection

FeeDeck is written for seller operators who need to isolate the layer that is pulling the order down. The site combines the live calculator, the fee logic behind the result, and the next decision that usually follows.

What goes into each page

  • A live calculator or a worked guide focused on one seller-ops pressure point.
  • Plain-English explanation of the fee, payout, or contribution logic.
  • Examples that connect the output to real channel, fulfilment, or traffic decisions.
  • Links to the next calculator or guide operators usually need after that result.

Editorial note

FeeDeck is an independent educational site about marketplace fees, checkout drag, landed cost, payout margin, and ad-efficiency math. Pages are reviewed manually and updated when the examples or workflow guidance change.

  • Last reviewed: May 18, 2026
  • Educational use only, not accounting, tax, or legal advice
  • Channel fee policies can change, so live terms should still be checked directly

Trust layer

How FeeDeck tries to stay useful instead of becoming a thin calculator grid

The site is maintained as a seller-ops reference layer. Key pages include formula notes, page-status markers, review dates, FAQ blocks, and links to the next calculator or guide an operator usually needs after that result.

How pages are reviewed

FeeDeck reviews formulas, examples, workflow guidance, and page status manually. The goal is to keep payout and contribution logic readable enough for operators to check the result against live channel terms instead of accepting a black-box number.

What the site is for

FeeDeck is not trying to be a full accounting platform. It is trying to help sellers isolate the weak layer in the order quickly enough to make better margin, payout, fulfilment, and acquisition decisions.

FAQ

Common FeeDeck questions

Should I start with marketplace fees or ROAS?

Start with the layer that feels least reliable. If payout is unclear, begin with marketplace, Shopify, or processor fees. If payout is already clean but traffic efficiency is the pressure point, move into break-even ROAS. If fulfilment and return drag are the issue, use the operations tools first.

Why not judge profit from revenue alone?

Revenue is too early in the order. Marketplace take, payment fees, fulfilment, and import overhead all sit between revenue and the amount that is truly available for ads or retained profit.

Can I use these calculators outside Etsy and DTC?

Yes. The logic carries into Amazon FBA, eBay, TikTok Shop, Shopify, wholesale, services, and any model where you need to separate the gross charge from what the business actually keeps.

Start here

Open the tool that matches the failure mode in the order

If the order looks strong but the payout feels weak, start with the marketplace stack. If operations are the blind spot, move into shipping, returns, landed cost, inventory, and 3PL before you blame traffic.