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Review budget vs. actuals

Turn plan, actuals, and close notes into a variance workbook.

Summary​

Give Codex a budget, actuals export, and close notes, then ask it to map actuals to plan, calculate variances, flag reconciliation issues, and separate supported explanations from open finance questions.

Best for​

  • Month-end reviews that compare budget plans with actual spend exports.
  • Finance teams preparing leadership commentary from GL, spend, or department actuals.
  • Workbooks where category mapping, tie-outs, and unsupported explanations need review.

Useful plugins and skills​

  • $spreadsheets: Inspect spreadsheet inputs, clean and map rows, create variance tables, and produce reviewable workbook outputs.

Starter prompt​

Review budget vs. actuals​

Use $spreadsheets to update the budget vs. actuals review from the attached files.
Compare actuals to plan, map actuals to the right budget categories, summarize the major variances, and prepare a clean review view as an editable .xlsx workbook.
Preserve the raw inputs, use formulas for dollar and percentage variance calculations, and flag categories that do not map cleanly instead of forcing a match. Use account type to determine favorable or unfavorable variance: revenue above plan is favorable, while expense above plan is unfavorable.

Suggested effort: medium

Introduction​

If you're working on a budget and want to review the variances or inspect any issues, Codex can help you create a fully functional review workbook you can work with.

Attach the budget plan, actuals export, and close notes, then ask Codex for an editable review workbook. Codex can preserve the raw inputs, map actuals to plan, calculate variances, and create a summary view you can inspect in the thread.

Create the review workbook​

  1. Attach the budget plan, actuals export, and close notes, or provide exact file references along with the source.
  2. Run the starter prompt and ask for an editable .xlsx workbook.
  3. Open the workbook in Codex. Expand it into the full-screen view to inspect the raw inputs, mappings, variance formulas, and summary tab.
  4. Continue in the same thread to fix category mappings, add department cuts, or draft the finance summary.

If the source files are in a connected app, mention the exact files or folder. Avoid asking Codex to search a broad Drive or workspace when the review should use specific finance sources. When the workbook appears in the thread, open it in Codex and expand it full-screen to review the raw inputs, mappings, variance formulas, and summary tab before asking for revisions.

Check the variances​

Before sharing the workbook, ask Codex to audit the categories, formulas, and variance explanations.