What if the best budgeting tool you could own was one you already pay for and barely use? That is the pitch behind Tiller, the service many people still call Tiller Money. Instead of asking you to live inside another app, it quietly fills your Google Sheets or Microsoft Excel workbook with a daily feed of bank and credit card transactions, then gets out of the way.
For some people that is a revelation. For others it is a headache wrapped in a spreadsheet. This guide walks through how the service actually works, where it shines, where it trips people up, and how to decide whether it fits the way you handle money.
What Tiller Money actually is
Tiller is a subscription service that connects to your financial accounts and copies the transaction data into a spreadsheet you control. The company started around 2012 to 2013 under the name Tiller, later marketed itself as Tiller Money, and has since gone back to plain Tiller. The core idea never changed: your data belongs in a file you own, not locked inside a vendor’s dashboard. (Data security guidance from the Federal Trade Commission)
That single design choice explains almost everything else about the product, including its fans and its detractors. Apps like YNAB, Monarch, or Copilot give you a curated interface and make decisions for you. Tiller gives you raw rows and a blank canvas.
The spreadsheet-first model
Once connected, Tiller delivers transactions into a workbook template. The template includes a transactions sheet, and around it sit supporting sheets for budgets, net worth tracking, and category rollups. Because everything lands in a standard spreadsheet, you can add your own columns, build pivot tables, write formulas, or connect the data to charts.
The practical upside is flexibility. If you want a cash-flow forecast that no budgeting app offers, you can build it in an afternoon. The practical downside is that you have to build it. Tiller is closer to a data pipeline than a finished product.
How the bank connection works
Tiller does not connect to your bank directly. It relies on a third-party account aggregation provider, historically Yodlee and later Plaid according to company statements. That middleman handles the secure login handshake with your bank and passes transaction data back to Tiller, which then writes it into your sheet.
This is the same plumbing most budgeting apps use, so the reliability question is really about the aggregator and your specific bank. Large national banks tend to sync smoothly. Small credit unions, some brokerage accounts, and institutions with aggressive fraud controls can break, sometimes for weeks.
A few practical notes from how these connections behave in the real world:
- Credentials go to the aggregator, not to Tiller’s own servers, and connections are typically read-only.
- Two-factor authentication sometimes forces a manual re-login, which pauses the feed.
- Some banks throttle how often third parties can pull data, so “daily” sync is not always literal.
- Accounts you rarely touch are the ones most likely to silently disconnect.
The regulatory backdrop here is worth knowing. In the United States, the Consumer Financial Protection Bureau finalized an open banking rule in 2024 under Section 1033 of the Dodd-Frank Act, which is meant to give consumers more control over their financial data and standardize how third parties access it. The rule’s implementation timeline has been contested and revised since, so check its current status before assuming anything about your rights.
What you get for the subscription
Tiller has historically charged an annual subscription, roughly $79 per year at one point, with a free trial. Pricing changes, so verify the current figure before signing up. What the fee buys is the sync engine plus a library of templates.
| Feature | What it means in practice |
|---|---|
| Daily transaction feed | Bank and card activity lands in your sheet automatically |
| Google Sheets support | Works in the browser, shareable, free to use |
| Microsoft Excel support | For people who prefer desktop Excel or need offline files |
| Template library | Budget, net worth, debt payoff, and category tracking sheets |
| Community and help center | Forums and documentation for troubleshooting and customization |
| Full data ownership | Your workbook is yours; export or archive it anytime |
The template library matters more than it sounds. A blank spreadsheet is intimidating. A pre-built budget sheet with categories already wired to the transactions feed gets a new user to a working system in maybe twenty minutes. (Personal finance overview)
Where the spreadsheet approach wins
The strongest argument for Tiller is customization without lock-in. If you have ever built a budget in an app and then hit a wall because the app would not track a specific expense the way you wanted, you understand the appeal. In a spreadsheet, the wall does not exist.
It also suits households with unusual finances. Rental properties, side businesses, multiple currencies, reimbursable work expenses, or a partner who wants a separate view all fit naturally into a workbook. App-based budgeters tend to force these into awkward workarounds.
There is a financial-literacy angle too. Building your own category structure forces you to think about what you actually spend money on, rather than accepting a vendor’s default categories. That is a small but real benefit.
And for anyone already tracking net worth or investments in a spreadsheet, Tiller removes the most tedious part of the process: typing in transactions by hand every week.
Where it frustrates people
Honesty time. Tiller is not for everyone, and the complaints are consistent.
Spreadsheet skill is a real barrier. If formulas, named ranges, and pivot tables sound like a foreign language, the learning curve is steep. You can use the stock templates without touching a formula, but the moment something breaks, you need to debug it.
Sync failures are your problem. When a bank connection drops, you get an email and a gap in your data. Fixing it usually means re-authenticating, but sometimes it means waiting. App-based services paper over this with support teams; with Tiller you are often on your own in a help forum.
Mobile use is weak. Spreadsheets on a phone are workable but unpleasant. If you want to check your budget at the grocery store, this is not the tool.
You can break your own workbook. A stray sort, a deleted column, or a formula dragged one row too far can corrupt weeks of categorization. Backups are not optional.
The cost angle deserves a mention too. A subscription for what is essentially a data feed feels expensive to some people, especially compared with free spreadsheet templates. Whether it is worth it depends entirely on how much time you would otherwise spend on manual entry.
A realistic setup process
If you decide to try it, the order of operations matters more than most reviews admit.
- Start with one checking account and one credit card, not your entire financial life. Get the sync working before adding complexity.
- Use a stock template for the first month. Do not customize anything until you understand how the sheets connect.
- Make a copy of the workbook before you edit formulas. Keep that copy as a known-good fallback.
- Set a weekly calendar reminder to review transactions and fix categories. Ten minutes weekly beats a three-hour catch-up session.
- Add accounts one at a time, checking after each that the feed arrives correctly.
- Once the basics are stable, add your own sheets for goals, net worth, or forecasting.
The most common mistake is importing everything on day one, getting overwhelmed by hundreds of uncategorized transactions, and quitting. The second most common is customizing the template before understanding it, then breaking the links between sheets.
Common mistakes that sink the experience
Beyond setup, a few habits separate people who love Tiller from people who cancel after two months.
Treating it as a set-and-forget app. It is not. The system needs periodic attention, especially around bank connection changes and new accounts.
Over-engineering the workbook. Some users build elaborate dashboards with dozens of sheets and then cannot remember how any of it works. Simple and maintained beats complex and abandoned.
Ignoring reconciliation. If your spreadsheet balance drifts from your bank balance, you will eventually stop trusting the numbers. Reconcile monthly.
Skipping the categorization rules. Tiller lets you set rules so recurring merchants auto-categorize. Skipping this means recategorizing the same coffee shop every week.
People who manage money carefully in spreadsheets often care about the same underlying question: where does the money actually go? That instinct shows up in other areas too, such as understanding where identity threat detection costs really go when a business budgets for security, or why gift card scam victims rarely get their money back once funds leave an account. The common thread is visibility: you cannot manage what you cannot see clearly.
How Tiller compares with alternatives
The honest comparison is less about features and more about temperament.
| Approach | Best for | Main trade-off |
|---|---|---|
| Tiller | People comfortable with spreadsheets who want full control | Manual setup and maintenance |
| App-based budgeters | People who want guidance and a polished interface | Less flexibility, data lives in the app |
| Free spreadsheet templates | Very budget-conscious users | No automatic transaction feed |
| Bank-provided tools | Basic spending overview | Limited categories, no long-term history |
None of these is objectively better. A person who hates spreadsheets will be miserable with Tiller. A person who loves them will find app-based tools claustrophobic.
It is also worth noting that spreadsheet skills transfer. Learning to build a budget model teaches you something about your finances that clicking through an app does not. The same is true of adjacent money questions, like understanding how AI companies actually make money or how to make money with AI without falling for hype. The skill of asking “where is the money really coming from” is portable.
Privacy and security considerations
Handing bank credentials to any third party deserves scrutiny. Tiller’s privacy policy and security documentation are the primary sources for how data is handled, and they are worth reading before you connect anything. Look specifically for what is stored, how long it is retained, and whether access is read-only.
The aggregator layer adds a second party to the chain. That is normal in this industry but not trivial. If you are uncomfortable with aggregation generally, no spreadsheet tool will solve that for you.
Practical precautions that help regardless of the service:
- Use unique, strong passwords for your bank accounts and enable two-factor authentication.
- Review connected apps in your bank’s security settings periodically and revoke anything you no longer use.
- Keep your Tiller workbook in a cloud account with two-factor authentication enabled.
- Do not share the workbook publicly, even read-only, since it contains full transaction history.
Who should skip it
Skip Tiller if you want an app that tells you what to do, if you primarily manage money on your phone, if you have no interest in learning spreadsheet mechanics, or if your bank connections are historically unreliable and you cannot tolerate gaps.
Skip it also if the subscription cost would bother you more than manual entry would. There is no shame in a free template and twenty minutes a week.
Conclusion
Tiller Money occupies a genuinely unusual spot in personal finance software. It is not a budgeting app and it is not a spreadsheet template; it is the pipe between your bank and a workbook you own. That makes it powerful for people who want total control and frustrating for people who want a finished product.
The decision comes down to one question: do you want to be handed a system, or do you want to build one? If building sounds satisfying, Tiller is one of the few services that lets you do it without retyping transactions by hand. If building sounds like homework, a conventional budgeting app will serve you better. Either way, the underlying goal is the same, and it is the one worth keeping in focus: knowing exactly where your money goes, and why.
Frequently asked questions
Is Tiller Money free?
No. Tiller has historically operated on an annual subscription with a free trial, though the exact price has changed over time. The spreadsheets themselves are free to use if you already have Google Sheets or Excel, but the automatic transaction feed is the paid part.
Does Tiller work with Excel as well as Google Sheets?
Yes. Tiller has supported both Google Sheets and Microsoft Excel, which is one of its differentiators. Users who prefer desktop Excel or need offline files can work in Excel, while browser-based users can stay in Google Sheets.
How does Tiller get my bank transactions?
It uses a third-party account aggregation provider, historically Yodlee and later Plaid, to establish a read-only connection with your bank. The aggregator retrieves transaction data, and Tiller writes it into your spreadsheet, typically once a day.
Is Tiller safe to use with my bank accounts?
The connection is designed to be read-only, meaning the service can see transactions but cannot move money. Still, you are trusting both Tiller and its aggregation partner with access, so read the privacy and security documentation carefully and enable two-factor authentication on your bank accounts.
Why do my bank connections keep breaking?
Bank connections break for reasons largely outside Tiller’s control: two-factor authentication prompts, bank security changes, aggregator outages, or institutions that limit third-party access. Re-authenticating usually fixes it, but some accounts require repeated attention.
Who is Tiller actually for?
It suits people who are comfortable with spreadsheets, want full ownership of their financial data, and have finances that are unusual enough that standard budgeting apps feel limiting. It is a poor fit for people who want a guided app experience or who mostly manage money on a phone.
