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Seller guides

Better decisions start with better context.

A growing library of clear, practical finance explainers for marketplace sellers and independent brands.

01

How to Calculate Your True Break-Even Point for Dropshipping

Dropshipping margins are razor-thin. Learn how to accurately calculate your break-even point on ad spend (ROAS) to ensure you aren't scaling a losing campaign.

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02

The Hidden Costs of Amazon FBA: A Breakdown for Beginners

Amazon FBA is incredibly powerful, but its fee structure is notoriously complex. Learn about the hidden storage fees, disposal fees, and referral fees eating into your margins.

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03

Stop Losing Money on Shipping: A Pricing Strategy Guide

Should you offer free shipping or charge the customer? We break down the psychology of free shipping, how to build it into your margins, and how to avoid losing money on heavy items.

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04

PayPal vs Stripe: The Ultimate Fee Comparison for Digital Products

Choosing between PayPal and Stripe? We break down the fee structures, international conversion rates, and dispute fees to help you maximize your profit on digital products.

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05

Shopify vs Etsy Fees 2026: Which is Actually Cheaper?

A complete breakdown of the hidden costs of running a Shopify store versus selling on Etsy. Find out which platform leaves you with the highest profit margin.

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06

The Ultimate Guide to Bookkeeping for Online Sellers (2026 Edition)

Stop relying on messy spreadsheets. Learn the exact bookkeeping workflows, accounting tools, and categorization strategies used by 7-figure ecommerce brands.

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07

How to Protect Your Profit Margins from Rising Shipping Costs

Shipping rates increase every year. Discover proven strategies to optimize your packaging, negotiate carrier rates, and protect your bottom line.

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08

Marketplace Economics, Explained

Compare the fee models of Etsy, Amazon FBA, Shopify, and eBay before selecting a channel for your ecommerce business.

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09

Every Ecommerce Cost to Track for True Margins

From payment fees to return allowances: a simple framework for tracking full contribution margin and ensuring your business is actually profitable.

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10

How to Price Etsy Products in 2026 for Maximum Profit

A complete framework for calculating landed costs, analyzing Etsy's complex fee structure, and setting a price that guarantees a healthy profit margin.

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Penny AI Assistant 🤖
Hi! I'm Penny, your AI finance assistant. Ask me about our calculators, fees, or how to improve your margins!
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