There are no fees for posting a borrower listing on Prosper. Fees are only charged if you get a borrower loan.
3% closing fee
The closing fee is a percentage of the amount borrowed or $75 (whichever is greater). For loans of $1,000 to $2,550 to California borrowers, the maximum origination fee is $50.
The closing fee is taken from the loan immediately, before loan proceeds are transferred to your account. This means that if you're using your Prosper loan to purchase something specific (like a wedding dress), make sure you ask for enough to cover both the dress and the closing fee.
For example, if you take a loan for $5,000 you will be charged a $150 closing fee. You'd receive $4,850 in cash deposited into your bank account.
Special circumstances
$15 failed payment fee: A failed automated withdrawal, returned check or bank draft, results in a fee of $15. Only one failed payment fee will be charged per payment period. This can be due to insufficient funds, a closed account, account changes that were not reported to Prosper, or for any other reason (other than an error by us). This fee is retained by Prosper.
Late payment fee: If a monthly payment is 15 days late, you'll be charged a late fee. Late fees are passed on to lenders; Prosper does not retain late fees.