Is my data uploaded anywhere?

No. The builder runs entirely in your browser. Drafts are kept in this browser's local storage so you can come back later, and Clear my data removes them. There is no account and no server on the other end.

Do I need DueBy to use this?

No. The CSV and Excel files are ordinary spreadsheets you can keep, print, or share. DueBy is the fastest way to turn them into reminders and a plan, but the files are yours either way.

Can I bring my Mint, YNAB, Monarch, or Goodbudget data?

Yes. Use Bring a file from another app, choose or paste the export, and confirm the column matches. Transaction exports become spending history; recurring charges in it are offered as bills and subscriptions when DueBy imports the file.

Which date and number formats work?

Dates are safest as YYYY-MM-DD, and that is what the builder writes. Pasted dates like 9/14/2026 or 14 Sep 2026 are converted; ambiguous ones like 3/4/2026 follow the order you pick above the table. Amounts can include currency symbols and thousands separators; they are cleaned up on export.

What is the dueby_schema column?

A marker column with the value 1. DueBy sees it and skips the column-matching step. You can delete it; the file still imports, DueBy just double-checks the columns with you.

Free tool · runs in your browser

Spreadsheet Builder for bills, subscriptions, and budgets

Type or paste your bills, subscriptions, income, and spending into a spreadsheet that uses DueBy's own column names. Download it as CSV or Excel and keep it, share it, or open it in DueBy with no column mapping.

Nothing leaves your browser
No account, no sign-up
CSV and Excel, editable anywhere
Converts Mint, YNAB, Monarch, Goodbudget, EveryDollar, Copilot

Open it in DueBy

1
Download the CSV or Excel file. On iPhone and iPad it lands in Files; on a Mac, in Downloads.
2
Tap the file and choose Open in DueBy, or drop it onto the DueBy window or Dock icon on your Mac. Settings ▸ Data ▸ Import works too.
3
DueBy recognizes the column names, shows what it found, and adds the rows. Files from other apps get a quick column-matching step instead.

Blank templates

Prefer to start in Excel, Numbers, or Google Sheets? These templates have the right column names and dropdowns already in place. Fill them in, then open the file in DueBy.

Column names

Every column is one of these keys. Required columns are marked *. Dates are YYYY-MM-DD; amounts are plain numbers; true/false cells accept yes and no too.

Bills

Anything with a due date: rent, utilities, loans, insurance, taxes.

Column	What goes in it	Example
name*	What the bill is called.	Electric
amount*	What is due each time. A plain number; $ and thousands separators are fine.	124.10
currency*	ISO code such as USD or EUR. Blank uses your default currency.	USD
due_date*	The next (or first) due day, as YYYY-MM-DD.	2026-09-14
repeat*	How often it is due: monthly, weekly, biweekly, yearly, every 3 months, once. Blank means monthly.	monthly
category	A category name; created if DueBy doesn't have it yet.	Utilities
autopay	true or false — whether it is paid automatically.	true
reminders	Days before the due day to remind, like 7d,3d,0d. Blank uses your default reminders.	7d,3d,0d
payee	Who gets paid, when it differs from the name.	City Power
notes	Anything you want to remember about it.	Account 4411
cancel_url	The page where you cancel or manage it.	https://www.netflix.com/cancelplan
shared	true when it belongs to the whole household.	false
set_aside_monthly	How much to set aside each month for an irregular bill.	100

Subscriptions

Anything that renews on its own: streaming, software, memberships.

Column	What goes in it	Example
name*	The service, as it appears on your statement.	Netflix
price*	The current price per renewal.	17.99
currency*	ISO code such as USD or EUR. Blank uses your default currency.	USD
renews*	The next renewal day, as YYYY-MM-DD.	2026-10-03
repeat*	How often it renews: monthly, yearly, weekly. Blank means monthly.	monthly
category	A category name; created if DueBy doesn't have it yet.	Streaming
trial_ends	The last day of a free trial, if there is one.	2026-09-03
cancel_url	The page where you cancel or manage it.	https://www.netflix.com/cancelplan
price_history	Past prices as day:amount pairs separated by semicolons, oldest first.	2024-01-01:15.49;2025-03-01:17.99
shared	true when it belongs to the whole household.	false
autopay	true or false — whether it is paid automatically.	true
reminders	Days before the renewal to remind, like 7d,3d,0d.	7d,3d,0d
notes	Anything you want to remember about it.	Account 4411

Income

Paychecks and other money in, with when it arrives.

Column	What goes in it	Example
source*	paycheck, freelance, benefits, gift, refund, or other.	paycheck
amount*	How much arrives each time.	2100
currency*	ISO code such as USD or EUR. Blank uses your default currency.	USD
date*	The next (or first) pay day, as YYYY-MM-DD.	2026-09-05
repeat	How often it arrives: weekly, biweekly, semimonthly, monthly, once. Blank means once.	biweekly
received	true when a one-off has already arrived.	false
note	Anything you want to remember about it.	Account 4411
income_name	The employer or a label for this income.	Acme Corp

Column	What goes in it	Example
name*	The category's name; an existing category with the same name is updated.	Utilities
color	One of DueBy's category colors, such as yellow, green, blue, or gray.	yellow
symbol	An SF Symbol name for the category's icon.	bolt.fill
monthly_limit	The monthly budget for this category.	400
kind	fixed for bills that don't change, variable for everything else.	fixed
hidden	true to keep the category out of the sidebar and pickers.	false

Transactions

Individual purchases and deposits, for spending history.

Column	What goes in it	Example
date*	The day of the transaction, as YYYY-MM-DD.	2026-09-06
amount*	How much was spent (or received). Negatives from other apps are read as expenses.	63.27
currency*	ISO code such as USD or EUR. Blank uses your default currency.	USD
category	A category name; created if DueBy doesn't have it yet.	Groceries
note	The merchant or a memo.	Trader Joe's
income	true when the row is money in, not an expense.	false

Goals

Savings goals, including the emergency fund.

Column	What goes in it	Example
name*	The goal's name; an existing goal with the same name is updated.	Emergency Fund
target*	How much you are saving toward.	7920
currency*	ISO code such as USD or EUR. Blank uses your default currency.	USD
balance	How much is saved so far.	1980
monthly_contribution	How much you add each month.	200
emergency_fund	true for the emergency fund.	true

Payments

Past payments of a bill or subscription, one row per payment.

Column	What goes in it	Example
bill*	The bill or subscription the payment belongs to, by name. It must already be in DueBy or in the same file.	Netflix
date*	The day it was paid, as YYYY-MM-DD. One row per payment; the same bill and day never import twice.	2026-08-03
amount*	How much was paid that day.	17.99
currency	ISO code such as USD or EUR. Blank uses the bill's currency.	USD
note	Anything about that payment.	Paid by card

The same layout is what DueBy writes when you export all your data, so a file can go builder → app → export → spreadsheet and back.

Questions

Is my data uploaded anywhere?: No. The builder runs entirely in your browser. Drafts are kept in this browser's local storage so you can come back later, and Clear my data removes them. There is no account and no server on the other end.
Do I need DueBy to use this?: No. The CSV and Excel files are ordinary spreadsheets you can keep, print, or share. DueBy is the fastest way to turn them into reminders and a plan, but the files are yours either way.
Can I bring my Mint, YNAB, Monarch, or Goodbudget data?: Yes. Use Bring a file from another app, choose or paste the export, and confirm the column matches. Transaction exports become spending history; recurring charges in it are offered as bills and subscriptions when DueBy imports the file.
Which date and number formats work?: Dates are safest as YYYY-MM-DD, and that is what the builder writes. Pasted dates like 9/14/2026 or 14 Sep 2026 are converted; ambiguous ones like 3/4/2026 follow the order you pick above the table. Amounts can include currency symbols and thousands separators; they are cleaned up on export.
What is the dueby_schema column?: A marker column with the value 1. DueBy sees it and skips the column-matching step. You can delete it; the file still imports, DueBy just double-checks the columns with you.