So, check the promotional terms and don’t miss out on claiming the welcome bonus if it appeals to you. The best online casinos in the USA offer a bonus for new players upon making the first deposit. In such cases, you may need to enter a promo code during sign-up to claim the free bonus. For example, some of the top online casino sites in the USA offer a no deposit bonus. However, there may be slight variations in the steps listed above. The registration process is similar at most online casinos, including at gambling sites that accept Apple Pay. Fill out the registration form to create a new player account.Confirm that the casino is licensed and available in your state.Choose an online casino that is legal in the USA.