Month-End Close Checklist & Tracker
Run the monthly close as a tracked checklist — tasks with owners, due-by-day, and dependencies — where each owner completes their task with evidence, a reviewer signs it off, and the controller closes the period only when every required sign-off is in. With a live status board, late-task reminders, a close report, and cycle-time trends.
A web tool where you import a close task template; the app schedules every task by its close-day and dependencies, blocks a task until its predecessors are done, lets owners complete tasks and attach evidence, routes each to a reviewer to sign off, sends reminders for late tasks, and only lets the controller close the period once all required sign-offs are in — then exports a close report and cycle-time metrics, and rolls the template forward for next month.
Before you start
- A Supabase account (free)
- A Vercel account (free)
- A Resend account (free)
- Your close task template as a sheet (task, owner, close-day, dependency, evidence required)
- Claude Code or any AI coding agent
The problem this kills
The close starts and you become air-traffic control. Who's doing the bank recs? Is the AP cutoff done yet — because the accruals can't start until it is. Did revenue post the journal? You're pinging people on Slack, re-checking a shared spreadsheet that three people are editing at once, and keeping the real status in your head. Every month the same questions, the same fire drills, the same "I thought you had that."
And the spreadsheet doesn't enforce anything. Nothing stops someone from starting a task before the task it depends on is finished. Nothing makes them attach the evidence — the rec, the screenshot, the approval — that you'll need when the auditors ask. Nobody actually signs off; tasks just quietly turn green. So you re-open things, you chase the same person twice, and at the end you can't say with a straight face exactly who did what, when, or how long the close really took.
This is precisely the kind of dependency-aware, sign-off-driven process that a small internal tool runs far better than a shared sheet — and you don't need to be a developer to build it.
What you'll build
A simple internal web tool that runs your monthly close as a living checklist. You import your close template once — each row is a task with an owner, the close-day it's due by (Day +1, Day +2…), what it depends on, and whether evidence is required. To start a new close you pick the period, and the tool schedules every task against your period-end calendar and blocks each task until its predecessors are signed off.
Each owner sees just their tasks, completes them, and attaches the required evidence. A reviewer signs each one off (or sends it back). A live status board shows the whole close at a glance — done, in progress, blocked, late — and Resend nudges anyone whose task is overdue. The controller can only mark the period closed once every required task has its sign-off in. Then the tool exports a close report and tracks your close cycle time month over month, so you can actually see it getting faster. Next month, it rolls the template forward for you.
What's inside the Implementation Plan
The plan is a single file you paste into an AI coding agent. It opens by interviewing you about your business — how your close runs today, who owns which tasks, how you number close-days, your real task dependencies, what evidence you require, your sign-off and approval rules, and your messy month-end exceptions — and then tailors the data model, the scheduling logic, and every later step to your answers. This is a build shaped around your close, not a generic template.
From there it walks the agent through the database schema, importing your close template with duplicate guards, the scheduler that lays out tasks by close-day and dependency, the owner's complete-and-attach-evidence flow, the reviewer sign-off gate, the live status board and reminders, the controller's period-close gate, and the export of the close report plus cycle-time metrics. Every step ends with a ready-to-copy prompt. Because the whole thing runs on a template you import and a report you export, you can build and use it this close cycle even with no connection to your ERP.
The governance it includes (this is the point)
A close is an audit-facing process, so it's built like one. Login so only your finance team can use it. Row-level security so you only ever see your own organization's close. A complete audit trail of every completion, sign-off, edit, and reminder — who did what, and when. The hard human-in-the-loop gate is doubled: a reviewer must sign off each required task, and the controller can't close the period until all of those sign-offs are in. Dependencies are enforced, not suggested — a blocked task literally can't be started. And duplicate guards on task-plus-period mean the same task can't be created or completed twice in one close.
Who it's for
Controllers and accounting managers who herd the close every month and are tired of running it from memory and a shared spreadsheet. If you can describe how your close is supposed to flow, you can build this.
You've got this — open the plan, paste the first prompt, and let it interview you about your close.