Can I change my PayPal address to another country?
No. The laws applicable to PayPal accounts differ by country, so you can't change your address to a country that is different from the country you used when you opened your account. If you're moving out of Singapore, you’ll need to open a new account.
If you maintain residences in 2 countries, you can have 2 PayPal accounts as long as only one is a Business account and the other an Individual account.