The first month costs more than any month after it. Plan for both the one-time costs and the monthly costs.
One-time costs in the first month
Security deposit for an apartment. Often one month of rent; it differs by state.
First month's rent, sometimes also the last month's.
Application fees for apartments.
Furniture and kitchen basics: bed, pots, sheets. Used items save a lot.
Utility deposits if you have no US credit history (electricity, gas, internet).
Phone: a SIM or eSIM and maybe a new phone.
Winter clothes if you live in a cold place.
Temporary housing until your lease starts.
Utilities: electricity, gas, water, trash. Some leases include some of them.
Groceries and household items
Transport: transit pass, or car payment, insurance, gas and parking
Health insurance and medicine
Renters insurance: protects your things; many landlords require it
Subscriptions: streaming, gym, apps
A common US rule: rent should be no more than about 30% of your income before tax. Many landlords also ask that your income be about 3 times the rent.
Example: you earn $4,000 a month before tax. 30% is $1,200. Rent above that leaves little for everything else.
Write your monthly income after tax (your take-home pay). Students: write the money you have for the semester, divided by months.
List your fixed costs: rent, phone, internet, insurance, transit.
Track everything else for 30 days. Most bank apps sort spending into categories.
Compare at the end of the month and adjust.
Try to keep an emergency fund: money for surprises, like a medical bill. Start with any amount.
Money that leaves quietly
Sales tax on most purchases (added at the register).
Tips at restaurants, delivery and taxis.
Free trials that turn into paid subscriptions. Set a reminder to cancel.
Delivery fees. Cooking at home is much cheaper.
Signing a lease before you know your real take-home pay.
Converting every price to your home currency for months. Think in dollars and use your budget instead.
Buying everything new in week one. Wait and see what you really need.