Ledgerwork: Bookkeeping & Taxes for E-Commerce Sellers is Book Two in the Ledgerwork series, and it is written for a different reader than Book One. Book One was built for people building independent careers as bookkeepers and tax preparers. This book is written for the e-commerce seller directly — the person running an Etsy shop, an Amazon FBA storefront, a self-hosted Shopify brand, or a dropshipping operation — who needs to understand and manage their own business's bookkeeping and tax obligations.

The book is built around two distinctions most sellers never learn exist until they cost something. The first is about channel: Etsy and Amazon are legally required "marketplace facilitators" that calculate, collect, and remit sales tax on a seller's behalf, while a self-hosted Shopify store is not covered by that same law, leaving the seller personally responsible for registration, calculation, collection, and remittance on that channel alone. The second is about inventory: a traditional reselling or handmade-goods business tracks inventory cost formally, while a dropshipper never holds inventory at all, recognizing cost of goods sold transaction by transaction instead.

Seven illustrative seller journeys carry these distinctions through real, lived scenarios: an Etsy handmade-ceramics seller sorting out the hobby-versus-business line and a simplified federal inventory method most small sellers never learn exists, an Amazon FBA reseller discovering that stored inventory creates sales-tax exposure across states he never chose to sell into, a self-hosted Shopify skincare-brand owner learning the hard way that her platform doesn't collect tax the way a marketplace does, a home-goods dropshipper reconciling a no-inventory cost model and the "phantom inventory" problem, a multi-channel jewelry maker adopting real settlement-reconciliation tooling, a housewares brand owner whose growth pushes the business past a federal small-business accounting threshold, and a full solo-shop-to-company-to-sale arc.

From there, a thirty-four-stage roadmap walks a complete beginner through choosing a business structure, understanding exactly what each marketplace already handles versus what's still owed, selecting and documenting an inventory costing method, multi-state sales-tax registration, monthly reconciliation habits, quarterly estimated taxes, hiring, and eventual sale-readiness. A twenty-seven-entry Regulatory Record covers marketplace facilitator law, economic nexus under South Dakota v. Wayfair, Amazon FBA physical-presence nexus, Shopify's non-facilitator status, the federal small-business inventory exception under IRC §471(c), worker classification, and the FTC Safeguards Rule, with real named sources throughout. A set of twelve ready-to-use templates closes the book out: a multi-channel chart of accounts, an inventory-costing decision worksheet, a multi-state nexus tracker, a 1099-K reconciliation log, a resale-certificate tracker, and a business-sale due-diligence checklist among them.

This book is written for the e-commerce seller who wants to manage their own numbers with real confidence, rather than finding out the hard way — through a sales-tax notice from a state they didn't know they owed, or a tax bill larger than expected because inventory wasn't handled correctly — what they were supposed to know from day one.

Please note: this is an independently published guide written with the assistance of AI and edited by the author. The seven seller narratives are illustrative composites, not accounts of real named individuals. This book is not legal, financial, or tax advice — laws, regulations, and tax thresholds vary by state and change over time, and any reader should verify current requirements with a qualified professional before making a business or tax decision.