For all sales on the site, Reverb charges a selling fee and a payment processing fee. The selling fee is 5% of the total sale amount (including shipping) after your item has sold.
Additionally, you pay a fee to process payments via Reverb Payments. As a Reverb Preferred Seller, you pay 2.99% plus $0.49 per transaction.
Both fees will be taken out of your total payout for the sale, along with the cost of any shipping labels you choose to purchase and any applicable sales tax.