A short rolling forecast helps a business see timing problems early. It is not a promise of profitability; it is a decision aid built from assumptions you revisit every week.
Start with available cash
Record the money the business can actually use today, keeping restricted or personal funds separate.
List receipts by realistic week
Place each expected customer payment in the week it is reasonably likely to arrive, not simply its invoice date.
Add committed payments and review the gap
Enter payroll, suppliers, tax provisions and operating costs, then update actual figures and assumptions every week.