Renovation Budget Spreadsheet | Cost Overrun Tracker, ROI Calculator (Excel Tool)

The renovation budget spreadsheet that catches overruns before they wreck your project. Most renovations go over budget: cabinets cost more than the quote, the crew finds rotten subfloor, permits get delayed, and a $50K kitchen quietly becomes a $75K crisis. This spreadsheet stops that pattern. Track every line item, compare estimated vs actual, and watch the variance climb as it happens, with a warning at +10% before you ever hit +25%. Works in Excel and Google Sheets, with instant download.

Cost Overrun Engine

For each line item you enter your estimate and your actual cost, and the spreadsheet computes the variance and assigns a status automatically: Under, On Target, Slight Over (+10% to +25%) or Over (above +25%). Color-coded formatting flags problems instantly so the first red item tells you where to pause.

What you get

• Excel file with 9 tabs and 170 live formulas
• Google Sheets compatible
• Quick Start Guide PDF
• Daily Cost Tracker One-Pager PDF (print one per work day)
• CSV export for non-Excel users
• Free lifetime updates

Inside every tab

• Start Here — project info, total budget, a 20% buffer and 8-room allocation
• Dashboard — budget gauge, room-by-room status, 5 KPIs and alerts
• Cost Tracker — 20 line items with estimate vs actual, variance and auto status
• Room-by-Room — detailed cost rows per room
• Materials — 20 materials with vendors, quotes and ordered status
• Labor — 15 contractors with rates, hours and paid status
• ROI — investment vs value added with 10 industry benchmarks
• Timeline — 12 reno phases with dates and dependencies
• Surprises — an unexpected-cost log with 10 common renovation surprises

Who it is for

• Homeowners planning a kitchen, bath or whole-home renovation
• House flippers tracking cost and ROI per project
• Anyone working with contractors who wants accountability per line item
• Spreadsheet-minded renovators who want to catch overruns early

Instant delivery

Files arrive immediately after purchase: the Excel file (.xlsx), a CSV export, a Quick Start Guide PDF and a Daily Cost Tracker One-Pager PDF. Works on Mac, Windows, iOS and Android. No subscription, no login.

File details

• Format: .xlsx and .csv
• 9 spreadsheet tabs plus PDF guides
• 170 live formulas
• Compatible with Excel 2016+, Google Sheets, LibreOffice and Numbers
• Free lifetime updates

For personal renovation planning only. ROI benchmarks are general industry estimates and will vary by market. Designed and built by SpendFlow Studio.