Bookkeeping for a store that sells new goods is clean. A vendor invoice tells you your cost, the case pack tells you the quantity, and the margin math almost writes itself. Add a used or consignment department and that tidiness disappears. Every item is a one-off with its own cost, some of the goods on your floor are not even yours, and if you record all of it the same way you record new inventory, your books will quietly lie to you about what you own and what you earn.
None of this is hard once you see the structure. It comes down to one distinction you have to get right, a handful of habits at intake, and the discipline to keep the used department visible as its own line rather than blended into the whole store. Get those right and your numbers will tell you the truth: whether the used side is actually making money, and where.
The distinction that everything hangs on: own it, or hold it
Before you record anything, ask one question about each item: do you own it, or are you holding it for someone else? That single line splits your used goods into two worlds that get booked completely differently.
- Goods you own are pieces you bought outright or took in on trade. They are your inventory, an asset on your books, and when they sell you record the full sale as revenue and the item's cost as cost of goods sold.
- Consignment goods are pieces the consignor still owns until they sell. They are not your inventory and do not belong on your balance sheet as an asset. You are holding someone else's property, and when it sells you owe them their share.
Consignment inventory is not your asset. It is someone else's property you happen to be holding.
Owners who miss this treat consignment goods as inventory they own, which overstates their assets, distorts their cost of goods sold, and produces a margin number that means nothing. Keep the two worlds separate from the moment an item comes in the door and the rest of the bookkeeping falls into place. This is exactly the kind of call worth confirming with your CPA, because the cleanest treatment depends on your accounting method and how your books are set up, but the principle does not change: what you own and what you hold are not the same and cannot be booked the same.
How to record a consignment sale
When a consigned item sells, you have collected money that is not entirely yours. Part of it is your commission, which is your revenue, and part of it belongs to the consignor, which is a payable you owe them. The practical habit is to track, per consignor, what you owe as sales happen, so that when payout day comes the number is already sitting there and correct. Many owners run this as a consignor liability that rises with each sale and falls to zero when they pay out.
The reason this matters beyond tidiness is margin. If you booked the entire consignment sale as your revenue with no cost, your store would look wildly more profitable than it is, right up until you cut the payout checks. Recording the consignor's share as a liability as it accrues keeps your revenue honest in real time and makes payout a non-event instead of a monthly scramble. Your point-of-sale and inventory system should do most of this automatically if it was built for consignment; if it was not, that is the first thing to fix.
Cost of goods sold when every item is a one-off
For the used goods you actually own, the trap is cost of goods sold. With new inventory you can lean on a wholesale cost that applies to a whole case. With used, there is no case and no shared cost. The vintage jacket you paid twelve dollars for and the one you paid forty for are not interchangeable line items, and averaging them hides the truth about which buys are working.
The fix is to capture the cost of each owned item at intake, the moment you buy it or set its trade-in value, and carry that cost with the item until it sells. When it sells, that specific cost becomes your cost of goods sold for that specific sale. This is more work than new-goods bookkeeping, and it is non-negotiable if you want a real margin number. It is also the raw material for smarter buying: once you can see cost and sale price per item, you can see which categories and which price points actually pay, which is the whole point of tracking the unit economics in the first place.
Keep the used department on its own line
The most common way a used department fools its owner is by hiding inside the store's overall numbers. Used goods often carry a higher gross margin than new, so when you blend everything together, the healthy new business can mask a used section that is barely breaking even after handling, or a strong used section can prop up a soft quarter and you never learn which is which. Either way you are flying blind on the exact question you added used to answer.
Set up your books so the used or consignment department is its own class or category, with its own sales, its own cost of goods sold, and ideally its own share of the labor that serves it. Most accounting systems support this with class or department tracking; turn it on before you launch, not after a year of blended data you cannot untangle. When you can pull a profit-and-loss view for the used department alone, you can finally answer whether it earns its floor space, and you can compare it honestly against the alternative uses of that same space and cash.
Do not let the handling labor disappear
Used goods carry a cost new goods never do: the labor to source, inspect, clean, price, tag, and merchandise each piece by hand. That cost is real, and it is the single most underestimated number in resale. If it vanishes into general store payroll, your used department will look more profitable on paper than it is in the register. You do not have to run a stopwatch, but you should make a defensible estimate of the hours the used side consumes and hold that cost against its gross margin. A used department that looks great before handling and thin after handling is telling you something important, and only your books, set up to show it, will say so out loud.
A note on sales tax
Used and traded-in goods can be treated differently than new goods for sales tax, and the rules vary by state, including how trade-in credit is handled and whether resale of previously taxed goods changes anything. This is squarely CPA territory, and it is worth getting right from the start rather than unwinding later. The tax treatment of used goods is its own topic, but the bookkeeping principle is simple: whatever your CPA advises, make sure your system captures tax on used and consignment sales correctly at the point of sale so it is not a mess at filing time.
The numbers worth watching
Once the structure is right, a handful of figures tell you almost everything. Gross margin on the used department after handling labor tells you if it truly pays. Inventory turns and sell-through tell you if you are buying the right things at the right prices and moving them before they go stale. The aging of your consignor payable tells you whether you are paying people on time, which protects the relationships that feed your floor. None of these are exotic; they are the same instruments that run the rest of your store, pointed at the department that needs them most because its costs hide so well.
The operator's take
You do not need to become an accountant to run a clean used department. You need to honor one distinction, capture cost at intake, keep the department on its own line, and refuse to let handling labor disappear. Set that up once, ideally in a system built for resale and consignment, and the books will do what books are for: tell you the truth about the money. The owners who lose faith in resale usually never set this up and were reading blended numbers that could not answer their question. Give the used department its own honest ledger and it will tell you, quickly and clearly, whether it deserves to grow.
Frequently asked questions
Is consignment inventory an asset on my books?
No. Consigned goods belong to the consignor until they sell, so they are not your inventory and should not sit on your balance sheet as an asset. You record your commission as revenue and track what you owe the consignor as a liability until you pay it. Confirm the exact treatment with your CPA.
How do I record cost of goods sold on used items?
Capture each owned item's cost at intake and carry it with the item. When that item sells, its specific cost becomes your cost of goods sold for that sale. Because used goods are one-offs, you cannot rely on a shared case cost the way you do with new inventory.
Should I track new and used in the same P&L?
Track them in the same books but on separate lines. Use class or department tracking so the used or consignment department has its own sales, cost of goods sold, and labor, so you can see its true margin instead of having it blended into the whole store.
What is the biggest bookkeeping mistake in resale?
Treating consignment goods as owned inventory, and letting the handling labor disappear into general payroll. The first overstates your assets and distorts margin; the second makes the department look more profitable than it is.
Funkhouser Strategy helps independent and mid-market retailers make the calls that move the P&L, resale included, with senior operator judgment and no vendor agenda. This article is general information, not accounting or tax advice; confirm the treatment for your books and your state with your CPA.