Merging finances is an important step for newlyweds. Couples should 1) create a joint budget that accounts for both partners' incomes and expenses to avoid financial surprises. They also need to 2) decide how to share financial responsibilities like bill payments, savings, and discretionary spending. Finally, 3) establishing clear communication about financial matters is essential for avoiding arguments down the road. Open discussion of individual priorities and mutual financial goals can help couples develop a unified strategy.