A budget is a working estimate of what a project or technology vision will cost over time. It gives the business a benchmark for delivery and gives leaders a way to explain the value expected from the money requested. Accuracy matters more than presenting a number that sounds attractive: the CFO must be able to stand behind the figures, and the CEO and board need to understand what they are funding. section 3.6 section 2.2 section 13.5
Build the first estimate around when costs will occur, not just their eventual total:
- Include employees’ time, even if their salaries are already being paid. Project work displaces other work and may require backfill; allow for salary increases and relevant bonuses over a multiyear plan. section 3.6.1
- Include hardware, software licenses, third-party services, and cloud resources. Adjust each month’s estimate to the project’s stage rather than assuming a flat spend. section 3.6.1
- Put months across a spreadsheet and expense categories in rows. Review every line with the CFO, then retain that reviewed estimate as a baseline for alternative scenarios. section 3.6.2
Price the trade-off before promising speed
Suppose the CEO asks for earlier delivery. Start with the reviewed budget and calculate whether additional staff or short-term contractors would help—and how much time they could realistically save. Keep a lower-cost, longer-timeline scenario available too. Faster, higher-quality delivery generally costs more; spending more cannot shorten every task. section 3.6.2
Approval does not finish the budget. At least monthly, reconcile spending with invoices, costs, and actual project staffing; update the alternative scenarios as well. An apparently favorable result may simply mean a planned contributor was unavailable. Review the current budget with the CFO at least quarterly so changes remain visible and defensible. section 3.6.3
Investigate a rising cloud bill
A higher bill might reflect forgotten services, oversized resources, or welcome growth in customer traffic. Set threshold alerts, review running resources at least monthly, and use provider tags to identify project or department costs. Explain the cause before changing the estimate: the budget is a benchmark to refine against actual use, not a promise that costs will never change. section 13.5
