Think of the Master Budget as the "final consolidated plan" of a business — like how a CA firm brings together all working papers into one audit file. Every department makes its own plan (sales team, production team, HR, finance), and the Master Budget is what happens when you stitch all those individual plans together into one big picture.
Here's the practical flow: Rajesh & Co. Pvt. Ltd. wants to plan for FY 2025-26. The process always starts with the Principal Budget Factor (also called the Key Factor or Limiting Factor) — the one resource that constrains the business most. Almost always, it's sales demand. So the Sales Budget comes first. From there, you build the Production Budget (how much to make), which drives the Direct Materials Budget, Direct Labour Budget, and Manufacturing Overhead Budget. These all feed into the Budgeted Income Statement (P&L). Alongside this, you prepare the Capital Expenditure Budget and the Cash Budget, which together build the Budgeted Balance Sheet. All of this — operating budgets + financial budgets — is the Master Budget.
Two things to lock in for the exam. First, the sequence: Sales → Production → Materials / Labour / Overheads → Budgeted P&L → Cash Budget → Budgeted Balance Sheet. Second, understand why the Cash Budget matters separately from the P&L — a business can show a healthy profit on paper but still run out of cash mid-year (because debtors haven't paid, or a big capital purchase happened). The Master Budget catches this gap. Also remember: the Master Budget is static — prepared for one planned level of activity. If actual output differs, you compare variances against a Flexible Budget, not the Master Budget directly. This distinction is a frequent 2-mark theory question. Exam tip: 8–10 mark questions often give you partial functional budgets and ask you to prepare the Budgeted P&L — nail the cost-per-unit calculation and opening/closing stock adjustment every time.