The Money System · $29 one-time

Your whole financial picture, in one spreadsheet you own.

The Money System is a single, beautiful Google Sheet, your net worth, savings rate, FI ladder, debt payoff, and 5- and 10-year projections, all on one calm dashboard that lives in your own Google Drive. No bank logins. No subscription. No 28 confusing tabs.

One-time payment · yours forever · 14-day money-back · works in free Google Sheets

Money System · Home
Net worth
$0
Savings rate
36%
Monthly surplus
$1,800
Years to FI
12
Progress to Coast FI64%
No bank login
It never connects to your accounts.
Lives in your Drive
Your numbers stay in your Google account.
No subscription
One-time $29, yours forever.
14-day money-back
Not for you? Full refund.

Your money isn't a mess. It's just scattered, a balance here, a 401(k) there, a debt you'd rather not think about.

The Money System pulls all of it onto one screen, does the math for you, and shows you the one number that matters most: how close you are to financial independence.

What's inside

Four screens. One clear system.

Everything works the moment you open it, pure formulas, no setup, nothing to install or authorize. You only ever touch the yellow cells.

Screen 01 · Home

Your live cockpit

The one screen you'll actually open. Type in today's balances and watch your net worth, savings rate, and progress to financial independence update live, with a plain-English read on exactly where you stand.

Net worth, savings rate, and monthly surplus at a glance
A coach line that reads your numbers back in plain English
A living countdown to your FI number
Money System · Home
Your read this week

You're saving 36%, about a 12-year path to FI. Saving 40% would trim it by roughly two years.

Years to FI
0
Last updated
6 days ago
Screen 02 · FI & Goals

Your FI ladder

See the whole climb, from your first $10,000 to full financial independence, with every milestone in between. Add your own goals and sinking funds, each with a “done by” date that keeps itself up to date.

The FI ladder: first $10k → Coast FI → financial independence
Custom goals and sinking funds with automatic target dates
A “Journey to FI” projection that shows the finish line
Money System · FI & Goals
Your FI ladder
First $10,000100%
Coast FI64%
Financial independence11%
New car fundDone by Aug 2027
Screen 03 · Debt Payoff

Your debt-free date

List what you owe and the System builds your payoff plan, snowball or avalanche, then tells you the exact month you'll be debt-free and draws the curve as your balance falls to zero.

Snowball or avalanche, your choice
Your real debt-free date, down to the month
A payoff curve that watches your balance reach $0
Money System · Debt Payoff
Debt-free by
Mar 2030
Method
Snowball
Today$0 balance
Screen 04 · Setup

The quiet engine

Set your accounts and a couple of assumptions once, with simple dropdowns. After that, the whole System just works, every number on every screen flows from here. It's built so you can't break it.

Set it once with guided dropdowns
No scripts and no permissions to approve
The hidden engine does the math; you only touch the yellow cells
Money System · Setup
Cash & savings$8,000
401(k) / IRA$40,000
Expected return7%
Withdrawal rate4%
Only the yellow cells are yours to edit. The rest is done for you.

Sample figures shown for illustration. Your sheet fills in with your own numbers.

What you get

Everything, the moment you pay.

One unified sheet

Four screens in a single file. No add-ons, no 28 confusing tabs.

Works instantly

Pure formulas. Nothing to install, no scripts or logins to authorize.

Private by design

Lives in your own Google Drive. No bank connections, ever.

Yours forever

One-time $29. No subscription, no renewals, no upsells.

Google Sheets or Excel

Runs in free Google Sheets, with an Excel-friendly version too.

14-day money-back

If it's not for you, email us within 14 days for a full refund.

Honest fit

Built for the hands-on type.

The Money System is for people who actually like steering their own money. If that's not you, we'll point you somewhere better, no hard feelings.

It's for you if…
You like updating your own numbers, manual is a feature, not a chore.
You want one private system you fully control.
You've tried bank-linking apps and quietly quit.
You're building toward financial independence, beginner or not.
It's probably not if…
You want everything automated and your banks linked.
You'd rather an app just did it all for you.
You want day-to-day, transaction-level budgeting.

If that's you, our sister app Koven does exactly that, start there instead.

After you buy

From payment to your own copy in a minute.

1

Pay $29, securely

Checkout is handled by Stripe, there's no account to create. Pay by card and you're done.

2

Get your private copy

You'll get a link that drops your own copy of the Money System into your Google Drive, plus an email backup, just in case.

3

Make it yours

It opens pre-filled with sample numbers so you can look around. One button clears them, and you're off.

Start seeing your whole picture today.

One spreadsheet, one screen, one-time $29, yours forever, with a 14-day money-back guarantee.

Get the Money System for $29

Educational only, not financial, investment, or tax advice.

FAQ

Before you buy.

One Google Sheet, the Money System, with four screens: your Home dashboard, the FI & Goals ladder, a Debt Payoff plan, and Setup. It's a one-time payment, and it's yours to keep forever.

No. It opens pre-filled with sample numbers so you can see how everything works, and you only ever type into the highlighted cells. Every calculation is already built for you.

Yes. It runs in the free version of Google Sheets, on desktop or phone, with nothing to install. There's also an Excel-friendly version if you'd rather use that.

Never. Your copy lives in your own Google Drive, we don't have access to it, and the Money System never connects to your bank. It runs on formulas, with no logins to approve.

The Money System is the spreadsheet you own outright for $29. The $9/mo plan pairs that same sheet with the Koven app, which scores your money out of 100 and re-reads it monthly. Both include the sheet, so it's one or the other, not both. Koven is our sister app, and that plan is billed through Koven.

Yes, 14 days, no questions asked. Email help@themegabackdoor.com and we'll take care of it.

No. The Money System is an educational tool to help you see and understand your own money. It isn't financial, investment, or tax advice.