Expect to need a minimum combined income of $180,000 to live comfortably in Seattle, factoring in rent (around $3,000-$4,000 for a decent 2-bedroom), utilities, groceries, transportation, and some entertainment. Childcare costs are extremely high, easily exceeding $2,000 per month per child, so factor that in if applicable. A good rule of thumb is to allocate around 30% of your income to housing, 15% to transportation, 15% to food, and save the rest. Seattle taxes are also relatively high, so factor that in, too.