For CFOs and controllers: 11 Claude prompts that run the month end close reconciliation itself, match bank and subledgers both directions, catch the account that will not foot, and draft the flux memo, so a 6 day close lands in 2.
Never used Claude? It is free and takes 30 seconds to open. Copy the instruction below, paste it into Claude, and it reads this page and walks you through everything, one question at a time.
A short instruction plus a link to this page lands on your clipboard. First copy asks for your email once. That unlocks every button across the whole library.
Free account, no card, 30 seconds. This tab stays open so you can come back.
Open claude.ai ↗Claude reads this page, asks which computer you are on, then guides you step by step until it works. If anything errors, tell Claude what you see, and it fixes it with you.
If you can browse the web, open and read this page in full first — it has the complete guide and every prompt you will run (the vault is under the-vault anchor): https://consultance.ai/library/blackline-close-kill#the-vault . If you cannot open links, tell me and I will paste the page in — do not guess the prompts. I want to set this up properly so Claude runs my month end close reconciliation on real numbers, not a one-off chat. Walk me through it step by step, do not skip anything. Treat me like a CFO or controller who has never built a Claude Project and does not write code. Define every term once. This is NOT a Terminal or coding install. There is nothing to compile. It is a private Claude Project where the ledgers and statements live so every prompt reads from one place. ## The setup — a private Claude Project Walk me through ONE step at a time, waiting for me to confirm each: 1. **What I need.** A Claude account on a paid plan so I can pin the better model. Pin **Claude Fable 5**. Nothing to install. 2. **Make the workspace.** In Claude, create a new **Project** named for the entity and the period (for example "Acme close July"). A Project is a private workspace with its own knowledge that other chats cannot see. My ledgers stay in my own tenant; consultance never sees them. 3. **Load the close data.** Drop the bank statements, the GL detail, the subledger exports (AP, AR, fixed assets, payroll), and last month's P&L and budget into the Project knowledge. CSV or PDF both work. 4. **Run the vault.** Run prompt 01, the onboarding router, pick what you are closing and where the data lives. Then run 02 onward in order: bank rec, intercompany, subledger tie outs, the account that will not foot, variance commentary, the flux memo, the checklist, accrual true ups, journal support, and the close redesign. 5. **Gate it.** Prompt 05, the account that will not foot, is a hard stop. Nothing posts while a break is open. Every prompt outputs for a human to review and post; nothing here touches your ERP. ## Rules for walking me through this - One step at a time. Define every term once: Project, knowledge, reconciliation, tie out, foot, subledger, accrual, true up, flux memo, variance, critical path. - Do NOT tell me a step is "not possible." If I cannot find the Project button, it is in the left sidebar of claude.ai. - Never paste data I am not allowed to share into a public chat. Use a Project with my tenant controls. - This does the reconciliation work and flags what needs judgment. It does not post journals or replace the controller's sign off. Not accounting, legal, or tax advice. First message: ask me "What are you closing this period, and where does your data live: uploaded into the Project, pasted figures, or the Claude add in for Excel? And do you have last month's numbers to compare against?" Then start step 1.
Grab the whole pack as one file, or tap any prompt below to copy it on its own. Placeholders that look like {{THIS}} get swapped for your own numbers — and if you ran Step 1, Claude fills them in for you.
For CFOs and controllers: 11 Claude prompts that run the month end close reconciliation itself, match bank and subledgers both directions, catch the account that will not foot, and draft the flux memo, so a 6 day close lands in 2.
The setup rail and every prompt above are free and stay free. The cost is your time, and the risk of wiring it wrong on live data.
Back to the prompts ↑The vault does the reconciliation on a static export. Consultance wires the last mile into production inside your own environment: live ERP and bank feeds connected so the close runs on a cadence instead of a monthly scramble, role based permissions, an audit trail your auditor accepts, and multi entity and multi currency scale. Reply "wire it" for a 30-minute slot.
Book a build call →Prompt set authored by consultance.ai. This is management's own reconciliation and close support, not an audit and not independent assurance. It does not post journals or replace the controller's sign off. A named human owns and signs every close. Your data stays in your own Claude tenant, we never see it. Not accounting, legal, or tax advice.
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manual now, installed when you're ready
The free version above. It runs this read on a file you paste in, in your own Claude. Yours to keep.
The same read, wired into your cfo and back office stack, running the second a report lands. Nothing to upload, no new login.
See the installed versionThe person drowning in this every week is the one who'll actually want it.
Month End Close Reconciliation Engine is a finance and data build in the consultance.ai AI Build Library. For CFOs and controllers: 11 Claude prompts that run the month end close reconciliation itself, match bank and subledgers both directions, catch the account that will not foot, and draft the flux memo, so a 6 day close lands in 2. It fits CFOs, controllers, and finance leads at companies whose close runs 5 to 10 days and who pay reconciliation software to track work their team still does by hand. Setup difficulty is Medium, with 4 plain-English steps.
For CFOs and controllers: 11 Claude prompts that run the month end close reconciliation itself, match bank and subledgers both directions, catch the account that will not foot, and draft the flux memo, so a 6 day close lands in 2.
It fits CFOs, controllers, and finance leads at companies whose close runs 5 to 10 days and who pay reconciliation software to track work their team still does by hand.
Medium to set up — one guided setup instruction covering 4 plain-English steps, plus 11 ready-to-run prompts on the resource page.
The vault does the reconciliation on a static export. Consultance wires the last mile into production inside your own environment: live ERP and bank feeds connected so the close runs on a cadence instead of a monthly scramble, role based permissions, an audit trail your auditor accepts, and multi entity and multi currency scale. Reply "wire it" for a 30-minute slot.
Prompt set authored by consultance.ai. This is management's own reconciliation and close support, not an audit and not independent assurance. It does not post journals or replace the controller's sign off. A named human owns and signs every close. Your data stays in your own Claude tenant, we never see it. Not accounting, legal, or tax advice.
Month End Close Reconciliation Engine is the starting point. On a free AI audit we map where it fits your stack and what consultance.ai would build around it.
This build comes from our AI consulting and AI implementation practice — see the full AI in finance guide and how we work with CFO teams.