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Gemini AI — Finance Course

Gemini AI for Month-End Reporting in Google Workspace

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Section 01

Month-end reporting takes the same shape every month. Gemini can help you write it faster, not just calculate it.

Month-end close in most finance teams follows a familiar rhythm: figures are finalised in the accounting system, then someone has to turn those figures into a report — a summary for leadership, variance commentary for budget holders, or a narrative that explains what happened and why.

The numbers themselves come from your accounting system or Sheets. Gemini's role is different: it helps you turn a set of figures into a clear written report, draft variance commentary, and keep the format and tone consistent from one month to the next.

Key insight: Gemini does not calculate your month-end figures — it helps you communicate them. Give it the numbers from your existing reports and ask it to draft the narrative, summary or commentary around them.
Draft variance commentary
Turn a table of budget vs actual figures into written explanations of the key differences.
Write management summaries
Summarise month-end results into a short narrative for leadership, in plain language.
Keep reports consistent
Use the same structure and tone every month, so reports are easy to compare and review.
3
Common month-end report types Gemini can help draft
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Source of truth: accounting system or Sheets
100%
Of figures should be reviewed before outputting

Using Gemini for month-end reporting works best when it slots into the end of your existing close process — after the figures are final, not instead of them.

1
Finalise your figures first
Complete your normal month-end close in your accounting system, so the numbers feeding into the report are final, not provisional.
2
Bring the key figures into Sheets
Put the figures you want to report on — actuals, budget, prior period — into a simple table in Google Sheets.
3
Ask Gemini to draft commentary
Share the table with Gemini and ask it to identify the largest variances and draft a short written explanation for each.
4
Add context Gemini cannot know
Fill in the real business reasons behind each variance — a delayed contract, a one-off cost, a timing difference — since Gemini cannot know these on its own.
5
Review and format the final report
Check the draft against your figures, adjust tone if needed, and apply it to your usual report template before sending.

Note: Gemini drafts the words around your numbers. The figures themselves should always come from your accounting system or Sheets — never ask Gemini to generate or estimate figures for a report.

The prompts below help you get useful first drafts, while keeping your team in control of the final output.

Prompt 1 — Draft variance commentary
Act as a finance business partner. I am sharing a table of budget vs actual figures by department. For each department, write a short variance commentary (2-3 sentences) that: - States whether the department is over or under budget, and by how much (amount and percentage) - Identifies this as the largest or smallest variance if relevant - Uses a neutral, factual tone suitable for a management report Do not invent reasons — if the cause is not in the data provided, write "Reason to be confirmed with department" instead.
Prompt 2 — Write management summary
Act as a finance business partner. I am sharing this month's headline figures (revenue, margin, costs, net result), each with prior month and budget comparisons. Write a short management summary (4-6 sentences) in plain English that: - States the headline result for the month - Highlights the most significant changes vs budget - Uses a neutral, factual tone End with one sentence noting which areas may need follow-up discussion.
Always provide figures yourself
Never ask Gemini to calculate or estimate numbers. Provide the final figures and ask it to write around them.
Check every figure in the draft
Confirm every number Gemini writes in the commentary matches your source table exactly before sending.
Add real business context
Gemini can describe what changed, but only you know why — replace any placeholder notes with real explanations.
Important: Never send a report without checking every figure against your source data. Gemini explains numbers but does not verify them.