Contact Us



Borrower Services

1-(866) 615-6319

Monday – Friday
9am – 8pm (ET)
6am – 5pm (PT)

Investor Services

1-(877) 646-5922

Monday – Friday
9am – 7pm (ET)
6am – 4pm (PT)


Send only loan payments
(do not send correspondence) to:

Prosper Marketplace Inc.
P.O. Box 886081
Los Angeles, CA 90088-6081

Send correspondence to:

Prosper Funding LLC
221 Main Street, Suite 300
San Francisco, CA 94105

Work With Us

We are always looking for new relationships to help spread the word about Prosper and our peer-to-peer lending marketplace.

help for investing
Join Prosper’s Affiliate Program
Prosper offers competitive incentives for affiliates who refer borrowers to our service. It’s easy to join.
Email us at [email protected].
help for investing
Partner with Prosper
If you are interested in learning more about working more closely with Prosper, we would love to hear from you.
Email us at [email protected].

Report a Security Issue

Please report security vulnerabilities or cyber-security incidents related to to [email protected]

Note for Borrowers: Please include your loan number when sending check payments through the mail or scheduling payments through online banking. Including a loan number will help us to apply your payment to your loan more quickly. You can locate your loan number by logging into your account, clicking Borrowing, and then clicking your loan title. Your loan number will be under the title on the next page.