Excel & Google Sheets · No macros

Your whole financial life, in one file.

Six linked modules take you from this month’s grocery budget to a thirty-year independence forecast — net worth, mortgage payoff and retirement modelled on the same set of assumptions, with every formula visible.

Licence

Pay once. Own forever.
No subscription. No bank logins.

6Linked modules
30Year forward simulation
6Country presets
15Minutes to first dashboard
0Subscriptions, macros, logins
The premise

Budgeting apps
tell you where
the money went.

They are very good at the past and almost useless about the future. They cannot tell you the age you become financially independent, what an extra $300 a month does to your mortgage, or what your net worth is actually worth after inflation. That is a modelling problem, and a spreadsheet is the right tool for it.

01

Recurring fees to read your own numbers

$95–$120 a year, forever, for a categorised view of transactions you already have. Stop paying and you lose the history too.

02

Fragile bank connections

Aggregator links drop, re-authenticate badly, and silently re-categorise months of data. The cleanup is your evening, not theirs.

03

Your net worth on someone else’s server

Full transaction history, balances and liabilities held by a third party, governed by a privacy policy that can change without you.

04

Black-box maths

Rigid formulas you cannot inspect or bend — no lump-sum mortgage scenario, no offshore account, no “what if we drop to one income for two years”.

BUDGET · NET WORTH · MORTGAGE · RETIREMENT · ONE MODEL · BUDGET · NET WORTH · MORTGAGE · RETIREMENT · ONE MODEL ·
The build

Four engines,
one set of
assumptions.

Change the inflation rate once and every projection in the workbook moves with it. That single property is what makes the file a system rather than a folder of calculators.

ENGINE 01

Executive dashboard

Automated KPI cards, a net worth trajectory area chart and an asset allocation donut. The one sheet you actually open each month.

ENGINE 02

Zero-based cashflow

A twelve-month dynamic budget with automated split ratios, sinking fund accruals and a calculated household savings rate.

ENGINE 03

Mortgage & equity

Full amortisation schedule, property appreciation, true accumulated equity, and the net realised profit on eventual sale.

ENGINE 04

30-year FIRE simulator

Monthly-compounded wealth accumulation from age 30 to 60 with dual-bucket liquidity: liquid assets before the statutory age, preserved accounts after.

Sheet 06

The cockpit.

Every card below is a live formula in the workbook, driven by the inputs you entered on sheets 01 to 05. Nothing is typed twice.

Net worth$412kGross assets less total liabilities
Savings rate32%Of net household inflows
Mortgage freedom2041At current extra repayment
Independence age54At a 4% safe withdrawal rate
Net worth trajectory — illustrative
— NOMINAL– – REAL (INFLATION ADJUSTED)
Asset allocation — three liquidity tiers
Tier 1 · immediate liquidity 18%
Tier 2 · near-liquid growth 34%
Tier 3 · locked capital 48%
Jurisdictions

Built for
global citizens.

Select a country preset and the workbook reconfigures its retirement account labels, statutory unlock age and default rates. Or run any currency symbol you like.

🇺🇸
United States401K · ROTH IRA · USD
🇬🇧
United KingdomISA · SIPP · GBP
🇦🇺
AustraliaSUPER · OFFSET · AUD
🇨🇦
CanadaRRSP · TFSA · CAD
🇪🇺
EuropePENSION · EUR
🌎
GlobalANY SYMBOL · FX DRIFT
Fifteen minutes to your first dashboard

Own the model.
Not a subscription.

One file, one payment, lifetime personal use licence, and a 30-day no-questions refund.