March 2023 Update
- Fixed the EOM error on Monthly Investment sheet. It was pulling BOM, not EOM.
Updated the workbook to allow up to five categories to be used as Cash flow in/out of Investment accounts. Original was 1 category. You enter these categories on the “Single Investment” sheet.
The updated file can found here.
What is the goal of your workflow? What problem does it solve? How does it help you?
Goal is to automatically calculate monthly, annual, and XIRR returns on market investments and to compare these returns to any market ticker (e.g. SPY, QQQ, GOOG, etc.).
Before I discovered Tiller, I had created a spreadsheet to calculate these items. Every month I would manually enter the net monthly cash flows and ending balance for all my investment accounts. When you have many different accounts with multiple institutions, this takes a while.
I also wanted to group my investments (Education, Retirement, All, etc.) so I could determine returns on these groups as well.
Automating this task saved a lot of time and it also automatically adds in new accounts and groups.
How did you come up with the idea for your workflow?
I had created this spreadsheet a while ago to calculate these items and wanted to make it easier to determine my returns.
What are the sheets included with your template? Does your workflow use any custom scripts or formulas?
There are 3 included, they are explained below.
There are no custom scripts or formulas.
Is it ok for others to copy, use, and modify your workflow?
Absolutely. Here is the link- Investment Returns
Set up and use
All 3 sheets use the same philosophy…
- This only works on Asset accounts that have a Balance and at least 1 deposit. The workbook determines which accounts are valid.
The first transaction date for each account should be when you make the initial deposit into that investment account.
- If you know your cash flows and balances for any investment account by month, you can determine your return by month, year, lifetime. The smallest time period allowed is by month.
In order for the spreadsheet to calculate returns, you need to choose the category types for your deposits and withdrawals into your investment accounts. You can choose up to 5 categories. I only use one Cash Flow Category- “Investment Cash Flow”, but you can name it anything you want and choose those Categories in the “Single Investment” sheet.
Examples of Cash Flow Category Transactions are…
- 401k contributions (I classify my and my company’s contributions the same so the company’s contributions do not artificially inflate my return)
- Your Brokerage account deposits and withdrawals
You do not want to classify any Transactions that are internal to the Account. Internal Transactions include…
- Automatic dividend reinvestment
- Market change Transactions
- Once you can generate the above table for any Account or Group, you can determine any type of return!
- Single Investment sheet
You can pick any valid Account, the associated Account Groups, or All accounts.
You can also choose a Comparison Ticker (e.g. SPY, QQQ, GOOG, etc.) The sheet automatically determines what the returns are for this comparison ticker using the same deposit and withdrawals you put into the Account, Group, or All. FYI- Sometimes, GoogleFinance is not able to pull the data needed for the comparison. This seems random but you’ll see this in the table as “[ticker] issue”.
The sheet is limited to 20 accounts total. Even if you have < 20 valid Accounts, you still need to determine which Accounts to include…
You can have all your accounts in one Group or split between multiple Groups. The maximum number of Groups = maximum number of Accounts = 20.
- All Investments sheet
This sheet consolidates the returns on all the individual Accounts and Groups into 1 sheet. You can choose which Accounts, Groups, or All to include in the table.
Since the sheet has to know the returns on all Accounts and Groups, it is limited to 15 accounts total and 5 Account Groups. All 15 Accounts can be in 1 Group or split between the 5 Groups. Even if you have <= 15 valid Accounts, you still need to determine which Accounts to include.
If the Accounts you choose result in >5 Groups, only the first 5 Groups alphabetically will be available
As with the Single Investment sheet, you can also choose a Comparison Ticker (e.g. SPY, QQQ, GOOG, etc.) The sheet automatically determines what the return would have been on this comparison ticker using the same deposit and withdrawals from the Account, Group, or All. FYI- Sometimes, GoogleFinance is not able to pull the data needed for the comparison. This seems random but when it happens you’ll see this in the table as “[ticker] issue”.
The summary table is currently set up for 20 years from the earliest investment cash flow category for all your accounts. You can change the Sequence formula to customize this. If you want to add more years, you would need to add more columns to the right of the display columns and change the Sequence formula…
- Monthly Investments sheet
Choose which Account or Group you want and it will show you the returns by month. You can choose a month on the right and it will show EOM balances for all accounts.
Corner Cases/Error Handling (what should happen )
- What if you don’t have a deposit prior to the balance date?
The sheets use the first Transaction date as the starting date for each Chosen account. If you have a Balance prior to the first deposit and want to include it, manually enter an earlier deposit.
- What if I don’t have a Balance for each month?
- If it is the first Transaction month of the account, Balance = the initial deposit.
- If it is not the first Transaction month, Balance = previous month’s balance
This spreadsheet is decent sized and very processor intensive. Because of this, I have these sheets in a separate workbook from my main Tiller workbook and use Query(ImportRange) to filter the 4 Foundation sheets you need- Transactions, Categories, Accounts, and Balance History. I strongly suggest you start this way as well.
To help with this, there is sheet called “Tiller Connection”. Put your Tiller workbook URL into this sheet and choose your Cash Flow Categories in the Single Investment sheet. This workbook will automatically import and filter the Transactions, Categories, Accounts, and Balance History data it needs. If the Transactions, Categories, Accounts, and Balance History sheets are blank, you either have the wrong URL for your main Tiller workbook or you haven’t allowed a connection between the 2.
Enjoy and let me know if you have any questions.