You can create an account from the PayPal homepage or from the app. You can install the app for free from your device's app store. The account creation process is largely the same for both the website and the app. This will begin the account creation process.  For business accounts, there are two different options, each of which have different cost structures and benefits. Standard accounts free, but customers must route through PayPal in order to check out. Pro accounts cost $30 per month, but you get to full control over how you want to design the checkout process. The Standard free business account is the same as the old PayPal Premier account. This account is best suited for users who do lots of buying and selling on eBay. Make sure that you create a strong password so that nobody else can access your financial information. Make sure that you enter a valid email address, as you'll need to use it to verify your account. You'll need to enter your legal name, address, and phone number. All of this information is required in order to create your account. After entering your personal information, you'll be prompted to enter your credit or debit card. You can enter this now or later, but you'll need to at some point if you want to verify your PayPal account. If you don't want to enter your card information now, click "I'd rather link my bank first". You'll need a bank account linked if you plan on receiving money and want to be able to transfer it to your bank. You don't have to do this now if you don't want to. Just click "I'll link my bank later" to skip it for now. You'll be prompted to confirm that you want to skip the process. Before you're taken to your account's Summary page, PayPal will prompt you to sign up for a line of credit. This is optional, and you should read all of the terms carefully before applying. If you'd rather not apply for credit, click "No thanks".

TL;DR in Vietnamese:
Truy cập trang PayPal hoặc mở ứng dụng PayPal. Nhấp vào "Sign Up for Free" (Đăng ký miễn phí) hoặc chạm vào "Sign Up" (Đăng ký) để bắt đầu quá trình tạo tài khoản. Nhập địa chỉ email và tạo mật khẩu. Điền thông tin cá nhân của bạn vào biểu mẫu. Nhập thông tin thẻ tín dụng hoặc thẻ ghi nợ (tùy chọn). Nhập thông tin tài khoản ngân hàng (tùy chọn). Đăng ký dịch vụ tín dụng của PayPal (tùy chọn).