How to run a month-end close on your own money with Claude
Run a finance team's month-end close on your own money, with Claude working through Era Context: five copyable prompts, from chart of accounts to reusable pack.
You run a household month-end close the way a finance team runs one at work: connect your accounts, agree a chart of accounts, code every transaction, explain the variances, set watch rules and publish a pack. With Claude connected to Era Context, most steps take a single prompt; the close in the video below took about 12 minutes.
Era is an independent company; Claude is made by Anthropic.
What is a month-end close for household money?
A month-end close is the routine a finance team runs after every month ends. It codes every transaction to an agreed category, checks the books, explains what moved and packages the result for the people who decide. Pointed at your household, it gives you the same answer: where the money went, and why.
Mike Dion, whose video closes this page, spends a week on the close every month at work, and had never once run one on his own money. A banking app shows your transactions, but it doesn't code them to your categories, explain the variances or flag what needs a decision. Claude does that work. Era Context holds your accounts, categories and rules in one place, so Claude can reach them.
Here's how each step of a work close maps to what you ask Claude at home:
| Close step | What FP&A does at work | What you ask Claude at home |
|---|---|---|
| Access and controls | Grant system access, with approvals on every posting | Connect Claude to Era Context and keep every tool on needs approval |
| Chart of accounts | Agree the reporting categories before the books open | Propose 10 to 14 categories from six months of transactions |
| Close the books | Code every entry, and clear anything in suspense | Categorise every transaction, with a review list for the uncertain ones |
| Flux analysis | Explain every variance above a materiality threshold | Compare the month with the one before, above a threshold you set |
| Controls monitoring | Review unusual entries and supplier price changes | Set rules that watch for price rises and outsized charges |
| Close pack | Build the deck for leadership | Build a reusable month-end pack you can share |
What do you need before you start?
You need an Era account with your accounts linked, and Claude connected to Era Context. Reading and analysis work on the free Basic tier. Creating categories, recategorising transactions and writing rules change your data, so they need edit access, which starts on the Organize tier.
Basic covers two connected accounts with read-only access, enough to try the variance analysis and the pack. A full household close usually spans a current account, a savings account and a few credit cards, so most people run it on a paid tier. See pricing for what each tier includes.
Era encrypts your data with AES-256 at rest and TLS 1.3 in transit, never stores your banking login, and never sells or shares your data without your explicit permission. Every action an assistant takes is recorded in your activity log, and you can revoke its access at any time.
How do you run the close, step by step?
Seven steps take you from linked accounts to a finished pack:
- Connect your accounts, connect Claude, and keep approvals on.
- Have Claude propose a chart of accounts, and review it before anything is created.
- Close the month by categorising every transaction.
- Run a variance analysis against the month before.
- Set rules that watch for price rises and outsized charges.
- Check that your categories and rules are saved in Era.
- Have Claude build your month-end pack.
The prompts below are the ones Mike Dion uses in the video at the end of this page, lightly tidied up. Swap in your own month and thresholds.
How do you connect your accounts and Claude safely?
Link your banks and cards in Era first, then add Era Context to Claude and approve access. Leave every Era Context tool in Claude set to need your approval, so Claude asks before each action. Once you trust a read-only step, such as checking a balance, you can switch that one tool to always allow.
- Link your accounts. In Era, choose Connect your bank, pick your bank and sign in through the secure connection flow. Era supports thousands of institutions. Add your credit cards and savings the same way.
- Connect Claude. Add Era Context from Claude's connector directory, or add it as a custom connector at
https://context.era.app/mcp. Sign in to Era and approve the consent screen. - Keep approvals on. In Claude's connector settings, leave each Era Context tool on needs approval. You see every read and every change before it happens.
- Point Claude at Era. Start your prompts with "Use Era" so Claude reaches for your accounts rather than guessing.
The full walkthrough, with Claude Desktop and troubleshooting, is in how to connect Claude to your bank account.
How do you build a chart of accounts from your own transactions?
Ask Claude to read six months of transactions and propose 10 to 14 categories, with what falls into each and roughly what it comes to. Tell it not to create anything yet. You review the list, adjust it, and only then approve it, just as you would sign off a chart of accounts at work.
Use Era. Look at my last 6 months of transactions and propose a chart of accounts with 10 to 14 categories. For each one, show me what falls into it and roughly what it comes to per month. Don't create anything yet. I want to review it first.
In the video, Claude reviews 536 transactions and proposes rent, utilities and phone, groceries, restaurants, food delivery, Amazon and Target runs, health and fitness, pets, clothes, subscriptions, getting around, travel, cash and Venmo, and giving. It also sets aside payments between the household's own accounts, such as a credit card bill paid from a current account, because that isn't spending. When the list looks right, reply "Categories are approved" and Claude creates them in Era.
How do you close the month and categorise every transaction?
Ask Claude to categorise every transaction in the month against your new categories. The key instruction is the review list: anything Claude isn't confident about goes on a list with its best guess and its reason, and it asks you before coding it. That is your suspense account.
Use Era. Close out July 2026. Categorise every transaction in that month against the categories we've just set up. Anything you're not confident about, put on a review list with your best guess and the reason, and ask me before you code it.
In the video, all 111 July transactions land somewhere: 96 spending, five income and 10 payments between the household's own accounts. Only six go on the review list. Mike codes those himself, and the month is closed with every transaction accounted for.
How do you run a variance analysis on household spending?
Ask Claude to compare the closed month with the month before and set a materiality threshold, so it only reports changes worth your attention. Then ask what drove each one. Claude reads the transactions behind every category, so the explanation names the merchants and the trips, not just the totals.
Use Era. Run a variance analysis on July 2026 against June. Only show categories where the change is more than $150 or more than 20%, whichever is bigger, and tell me what drove each change.
In the video, travel jumps because the family went away in July. While they were away, Amazon and Target runs, cash and Venmo, and home furnishings all fall, which offsets part of the increase. Claude charts the variances and explains each one in a sentence.
How do you set up rules that watch for price rises?
Describe what you want watched in plain English, and Claude writes the rules into Era. It shows you each rule first, and nothing activates without your approval. The rules keep running between conversations, so next month's close starts with the flags already raised.
Use Era. Set up rules that watch for three things. One, any recurring charge whose price goes up. Two, any recurring charge that didn't exist a few months ago. Three, any single charge that's more than double what its category normally comes to in a month.
In the video, Claude creates the first and third rules. It skips the second and says why: Era's rules have no way to express "a recurring charge that didn't exist before". So ask Claude to check for new recurring charges as part of each close. It compares this month's recurring charges with earlier months and lists anything new. For more on catching those charges, see how to find subscriptions you forgot about, and for writing rules in depth, see how to create AI rules for your money.
Where do your categories and rules live in Era?
Everything Claude creates is saved in Era, not in the chat. Open Refine, then Categories, to see your custom categories, and Rules to see the rules Claude wrote. Next month, any assistant you connect starts from the same chart of accounts and the same watchers.
That persistence is what makes the close repeatable. You don't rebuild the categories each month, and you don't paste last month's numbers into a new chat. Claude can answer questions about the rules you've set, last month's transactions and the goals you've shared, because Era holds all of it. For more on what Claude can do once it's connected, see can Claude manage your money.
How do you build a reusable month-end pack?
Ask Claude to build the pack as an artifact, a reusable template you can read and share, and give it the sections in order. Claude fills each one from your closed month in Era. Next month, ask it to update the same pack for the new month.
Use Era. Build me a month-end pack. Make it an artifact, a reusable template I can read and share with a partner or a banker. Use these sections in this order: 1. A cover with the month, net cash for the month and total net worth. 2. A balance sheet snapshot by account. 3. Income against spending. 4. Spending by category. 5. Subscriptions. 6. A watch list of anything that needs a decision. 7. A short summary I can share without the detail.
In the video, the finished pack for July 2026 covers cash movement, net worth, the balance sheet by account, income against spending, spending by category, subscriptions, the decisions to make and a plain-English summary. Because Claude builds it, you design the layout, not a reporting menu.
Can you run the same close in ChatGPT?
Yes. Era Context has an official listing in ChatGPT too, so you can run every step of this close there instead of in Claude. Your categories, rules and memory live in Era, not in either chat, so a close you start in Claude carries on in ChatGPT with the same chart of accounts and watchers.
Era works with any MCP-compatible client — Claude, ChatGPT, OpenClaw, and dozens more. For a step-by-step ChatGPT setup, see how to connect ChatGPT to your bank account.
How often should you run a household close?
Run it once a month, a few days after the month ends, so late transactions have cleared. The first close takes longest, because you're building the chart of accounts and the rules. After that, your categories and watchers are already in Era, so the close comes down to the categorise, variance and pack prompts, plus the new-charges check.
What does the full close look like on real accounts?
Mike Dion of AI For Finance, a senior finance leader who runs a close every month at work, runs this whole process on a household's accounts with Claude and Era Context: The AI Setup Every FP&A Analyst Should Steal for Their Own Money. The video is in US English, with amounts in US dollars. Era sponsored the video. The full video plays below. If Claude's screens look different from the video, follow the steps on this page.