1. Start with take-home pay
Use what actually lands in your account each month, not your salary. If pay varies, use your lowest normal month.
2. List fixed bills
Rent, utilities, phone, insurance, minimum debt payments and subscriptions. These are the bills that come no matter what.
3. Add irregular costs as monthly amounts
Car repairs, gifts, annual renewals. Divide each yearly cost by 12. The free sinking funds calculator does this for you.
4. Give every leftover dollar a job
Savings, extra debt payments, then spending money. The 50/30/20 calculator gives a quick starting split.
5. Check it monthly
A budget is a plan, not a test. Adjust it after the first month. Try the free 2027 budget calculator to set it up in a couple of minutes.