After you sign up for an account, you can start receiving money right away. To use the funds in your account, you can transfer them to your bank account (you will need to add one first). A bank transfer usually takes about 1 to 5 business days. Or, you can request a PayPal Debit Card and have your funds available to use right away. PayPal Debit Cards can be used almost anywhere just like a normal debit card from your bank.
What has made PayPal so popular among both consumers and merchants, or clients and contractors, in this case, is that it is secure, allows for international payments and payments can be received almost instantaneously. When someone sends you a payment it arrives in your PayPal account within minutes compared to days when receiving an ACH deposit in your checking account or check by mail.