Which costs change net proceeds?
A sale may involve shipping, insurance, testing, transaction or other disclosed charges. Ask which apply, who pays them and whether the quote already deducts them. Separately paid expenses can reduce the economic proceeds even when they do not reduce the payment shown on a confirmation.
How are net proceeds different from a capital gain?
Net proceeds describe the sale's receipts after costs. A taxable gain also depends on adjusted basis and applicable tax rules. IRS Publication 550 explains the related concept of amount realized. A sale inside an IRA and a later distribution from that IRA are separate events.
How do net proceeds show up in practice?
In a hypothetical sale, a $10,000 gross bid minus $150 of total sale costs leaves $9,850, assuming no other deductions. That is not a $9,850 profit, and it does not establish any tax due. Keep the bid, fee details and final payment record together.