Bookkeeping in resale is mostly inventory tracking. If you know what each unit cost and what it sold for, the statements almost write themselves.
Set the categories once and never change them. Comparability is the whole value.
One account, one card
Every business transaction goes through them. No exceptions in month one.
Fix your categories
Inventory purchases, freight, parts, rent, utilities, fuel, wages, insurance, software, fees, interest.
Log inventory by unit
Purchase date, load, landed cost, grade, location. A spreadsheet is fine to start.
Log sales against units
Sale date, price, channel, fees. That is COGS and margin in one row.
Reconcile weekly
Fifteen minutes weekly beats four hours at month end.
Close the month
P&L and an aging report on the same day every month.
Example
- Categorising inventory purchases as an expense instead of tracking them into COGS on sale.
- Reconstructing three months of receipts at once.
- Renaming categories mid-year.
Not ready for truckloads yet? Keep building.
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