Needs are expenses you cannot cut without serious consequences: housing, food, utilities, transportation to work, insurance, and minimum debt payments. These are non-negotiable survival expenses.
Housing is typically your largest need—rent or mortgage, property tax, homeowners insurance, and maintenance. Aim to keep this at 25-30% of take-home income, leaving 20-25% for other needs. If you take home $2,000 and pay $800 in rent, you're at the upper end but workable. If you're paying $1,200, you're overspending on housing and need a plan to reduce this (roommate, moving, negotiating with your landlord).
Utilities and food come next. Budget $150-200 for electricity, gas, water, and internet combined. Groceries should be $200-400 per person monthly depending on your location and family size. If you have kids, food costs more; adjust accordingly.
Transportation means your car payment, gas, insurance, and maintenance if you own a vehicle. No car payment? Budget $250 for public transit or rideshare. A car payment eats $200-400 typically, so focus on keeping vehicles as long as possible to avoid rolling into new debt.
Insurance and minimum debt payments round this out. Health insurance (if not deducted from pay), car insurance, renters or homeowners insurance, and minimum credit card payments all count as needs.
Add these up honestly. If your needs exceed 50%, identify what's flexible. You might negotiate a lower insurance rate, find cheaper housing, or reduce transportation costs. Your needs number sets the stage for everything else.