Monthly Cash Flow Tracker
A fast, lightweight way to log this month's income and expenses and watch your running balance update as you go — built for a quick monthly check-in, not full bookkeeping.
Important — Please Read Before Using This Tool
This is a simple educational scratchpad, not a bookkeeping, accounting, or tax-filing tool. It does simple addition and subtraction on what you type in. Everything lives only in this browser tab's memory — nothing is saved, synced, or sent anywhere, and it disappears the moment you reload or close the page.
How to use this tool
- Add each income source for the month on the left.
- Add each expense, tagged with a category, on the right.
- Your running balance and category breakdown update automatically as you go.
- Use Print / Save as PDF or Export CSV to keep a copy before starting fresh — nothing here is saved automatically.
Income allocation
Income
Expenses
Expenses by category
Add an expense to see your category breakdown.
⚠ Educational scratchpad only — nothing you enter is saved. See our full disclaimer.
Why tracking cash flow matters more with variable income
With a steady paycheck, a budget is mostly about categories — how much goes to rent, food, and so on. With freelance or self-employed income, the bigger question comes first: how much actually came in this month, and does it cover what went out? A single strong month can hide a pattern of thinner ones if you're not looking at the numbers directly.
- It separates a good month from a good year. One large invoice can make a month look healthy even if the underlying rate of work has slowed.
- It surfaces spending before tax season does. Categorizing expenses as you go — especially into a "Taxes" or "Business" bucket — makes it easier to see what's already been set aside versus what's been spent.
- It builds a pattern over time. One month of tracking tells you little; several months side by side start to show which expenses are fixed, which flex with income, and which months tend to run tight.
This tool doesn't interpret your numbers for you or suggest what to change — it only adds and subtracts what you enter. The value comes from looking at the same categories month after month and noticing what shifts.
How this works
Running balance is simply total income − total expenses for whatever you've entered so far, recalculated the instant you add or remove a line. The income allocation bar shows what share of this month's income has been spent versus what's left. The category bars show each expense category as a percentage of your total expenses, so you can see at a glance where a lean month's money is actually going.
This tool intentionally keeps everything in your browser's memory only — there's no account, no save button, and no database. Use Print / Save as PDF for a clean printable copy, or Export CSV to open your entries in a spreadsheet, before clicking Start New Month.
Important Disclaimer
This tool is a simple educational scratchpad, not a bookkeeping or accounting system, and it is not a personalized financial recommendation. Everything you enter lives only in this browser tab's memory — nothing is saved, stored, or sent anywhere, and it will disappear if you reload or close the page. Read our full disclaimer.