Comprehensive Budget Planning in Excel

I’m organizing upcoming projects and need a solid, well-structured budget that can guide every financial decision I make. The job is straightforward: build an Excel-based budget model that gives me both the helicopter view and a drill-down into every single cost line.

Here’s what I’m after:

• A summary sheet that instantly shows total projected income, expenses, and net position.
• Separate tabs where each cost category is broken into granular, itemized expenses.
• Automatic roll-ups so any change on the detailed tabs updates the overview in real time.
• Clear instructions or simple macros that let me add, edit, and track expenses without breaking formulas.

Accuracy and readability are key. If you’re comfortable crafting clean, linked worksheets, setting up logical formulas, and presenting data so anyone can grasp it at a glance, I’d love to see how you’d approach this and how quickly you can deliver.