#profit-margins
Calculate, benchmark, and improve profit margins across your business
Printful and Printify fulfillment charges typically run 45-55% of retail price and belong in Schedule C Part III as cost of goods sold, not in general expenses. This guide separates the two print-on-demand models, shows why a 50% COGS ratio means a $30 sale yields about $6 of contribution after ads and processing, and lays out a chart of accounts and monthly reconciliation that keep margins and taxes correct.
Amazon's 2026 FBA fee overhaul restructured US fulfillment fees into price bands (under $10, $10–$50, over $50), layered on a 3.5% fuel surcharge that is excluded from the published rate card, and moved the low-inventory fee to the per-SKU level — changes that quietly reshape per-unit margin math for FBA sellers.
Customer-pay appliance repair calls earn roughly $200 in profit versus about $75 for warranty calls, and parts carry 30-100% markup — books that track parts cost per job, truck stock as real inventory, and the warranty-retail mix reveal which calls actually make money.
Childcare centers face a structural cash flow crisis as attendance-based subsidy reimbursement returns. Learn how to structure your books to survive volatile enrollment and delayed payments.
Solo mobile detailers can hit 60-80% gross margins, but only by tracking job-level costs — consumables, water, van depreciation, and labor — categories a generic "Supplies" bucket obscures.
A managed service provider chart of accounts should split recurring MRR, hardware resale, and project/T&M into separate revenue and COGS lines, since blended margins of ~42% can hide 58% recurring services next to 8% hardware resale.
Small importers lose margin points when tariffs hide in inventory costs. Here are 5 accounting strategies to recalculate landed cost, plan inventory properly, separate tariff line items, capitalize duties correctly, and claim refunds—so you can see tariff impact in real time.
Amazon's July 30, 2026 New Selection Program update caps referral fees at 10% on the first 100 units and 5% on the next 100 for new-to-FBA parent ASINs, waives storage and liquidation fees on the first 200 units for 120 days, and adds $125 in Vine and coupon credits — but existing enrollees must reconfirm by October 31, 2026 to keep qualifying new listings.
Landfill tipping fees rose about 10% this year to a national average near $62 per ton — enough to erase a demolition contractor's 5–10% margin on a single misestimated job. How to job-cost disposal fees as their own line item, build a disposal contingency into every bid, and book scrap-recovery revenue against the right project.
On July 1, 2026, eBay replaced tiered final value fees with flat category rates for commercial sellers on its European marketplaces — roughly 7–14% on new goods and a flat 5% on used and refurbished items. Depending on price band, the change can cut or raise your fees, so here's a 90-day audit to run against your own sales data.
A roller rink runs admissions, skate rentals, birthday parties, concessions, and merchandise under one roof — and well-run rinks post 20–35% margins while others limp at 10% on the same traffic. This guide shows how to split the chart of accounts by revenue stream, hold party deposits as deferred-revenue liabilities until the event happens, capitalize the rental fleet, and track KPIs like revenue per visit and ancillary revenue share.
With gold near $4,200/oz in mid-2026, jewelry makers who cost pieces at historical purchase price lose margin on every sale. Recipe-based COGS — a fixed bill of materials, labor, and overhead per design, repriced at current metal replacement cost — plus channel-specific markups (2x direct, 3–4x Etsy, wholesale at 25% of retail) keeps pricing and books accurate.
