#bookkeeping
Modern bookkeeping techniques using plain-text and automated workflows
A 1099-K from StockX or GOAT reports gross payments, not profit. Here's how sneaker resellers track per-pair cost basis, apply FIFO to cop-and-flip inventory, deduct platform fees that run 10-12% per sale, and meet the restored $20,000/200-transaction reporting threshold with clean books.
NREL data puts solar soiling losses at ~5% of output nationally and 25%+ in dusty climates — the basis for pricing 2–4 cleanings a year. How solar panel cleaning operators should book prepaid annual contracts as deferred revenue, track fuel and water per job to capture 15–25% route-density gains, and record DI systems and fall-protection gear as Section 179-eligible assets.
Roughly 1 in 20 K-12 students now attends a microschool, and 38% received state school-choice funds in 2025 — here's how to choose an LLC vs. 501(c)(3), price tuition against ESA timing mismatches, and track per-student revenue from day one.
Paid newsletter revenue on Substack, Ghost, or beehiiv is Schedule C self-employment income — owing 15.3% SE tax, quarterly estimates once you owe over $1,000, and facing a new 90% cap on hobby-expense deductions in 2026. Here's how the 1099-K thresholds, the 13–19% effective platform-fee cost, and the deduction rules actually work for writers.
Teeth-whitening studios often run an 85%+ gross margin on sessions but fail because they recognize prepaid package revenue too early, skip inventory shelf-life write-offs, and miscategorize licensing costs tied to their state's cosmetic-vs-dental classification.
A single 50-gallon barrel of used cooking oil is worth $100-185 to a biodiesel refiner, so collectors must book collected-but-unsold oil as inventory-in-transit, track actual weighed pounds per stop rather than estimates, and reconcile collected-to-shipped volume weekly to catch theft and double-invoicing before it erodes route profitability.
How wildlife and nuisance animal control operators should structure their books: separate revenue codes for trip fees ($75–$200), per-animal trapping charges ($100–$250), and exclusion jobs; amortize NWCO licenses on each state's actual term; and accrue a warranty reserve from real callback rates instead of expensing redo visits as they land.
A 750ml bottle yields about 5 five-ounce pours, and wine pour cost typically runs 25–30% versus 18–24% for liquor. This guide covers FIFO costing by vintage, by-the-glass yield math, shrinkage as a real COGS line, and why wine bars need separate on-premise and off-premise revenue and COGS accounts from day one.
AI bookkeeping platforms like Docyt ($499-$999/month), Zeni ($549-$799/month), and Rillet automate transaction categorization, reconciliation, and forecasting, but compounding rule errors and industry-specific judgment calls still require human review.
Amazon DSP settlement statements bundle base route rates, per-package fees, scorecard bonuses, and 1-4% chargebacks into one net deposit, and owners who book that as a single revenue line miss chargeback creep and the 50-60% labor markup that separates a 2.5% margin from a 6%+ one.
A barcade runs two businesses with opposite cost structures — liquor at a 20–24% pour cost and games at near-zero marginal cost. How to split the chart of accounts, book token sales as deferred revenue with ASC 606 breakage, expense machines via Section 179 or bonus depreciation, and test whether blended margin beats a plain bar's 10–15% net.
Under IRS Notice 2014-21, every mining pool payout is ordinary income at its fair market value on receipt — a daily-payout pool creates ~365 taxable events a year before you sell anything. This guide covers hobby vs. Schedule C classification, 15.3% self-employment tax, Section 179 vs. 100% bonus depreciation for ASICs, the 2026 per-wallet cost-basis rule, Form 1099-DA reconciliation, and the per-lot records mining books need to survive an audit.
