Discuss how you would deal with your accounts. Talk about your options for your separate accounts.
Single Joint Account
You have the option to put all your earnings in one single account. This is very logical. However, complications may arise if one of you is in deep debt or is notorious in keeping track of check issuances and withdrawals.
Single Joint Account Plus Two Separate Accounts (One-Two Method)
You may opt to open a joint account while retaining your separate checking accounts. You can agree to put into the joint account your money for defraying common household expenses. You can keep your financial autonomy with your own checking account.
No single option is better than the other. It will always depend on you. It is very important, therefore, that you discuss which option can satisfy you and your partner. Always choose the option that will make your relationship be the best for you.