A working chart of accounts for personal finance
Not how much you spent, but where, exactly, did it go?
Most people track how much they spend. Almost nobody tracks where, in categories that actually mean something. A chart of accounts is the fix, and it takes an afternoon.
The five account types, numbered, and the two lines most spreadsheets file in the wrong place.
Ask most people where their money goes and they can tell you how much, the monthly spend, roughly. Ask them where, in categories that mean something, and the answer gets vague. Not because they are careless, but because they have never had a structure to sort it into. That structure has a name in accounting, it has existed for centuries, and it takes an afternoon to build for yourself. It is called a chart of accounts.
This is the practical, build-it-today companion to our cornerstone on tracking wealth to a proper standard. At the foot of this piece there is a template you can copy and start using immediately.
What a chart of accounts actually is
A chart of accounts (COA) is simply the organised list of every account your money touches, grouped by type. In the formal definition it is "a listing of the names of the accounts that a company has identified… [consisting] of balance sheet accounts (assets, liabilities, stockholders' equity) and income statement accounts (revenues, expenses, gains, losses)."[1] Strip out the word "company" and it describes exactly what a household needs: a master list of your accounts, sorted so that the totals answer real questions.
There are five types, and everything you own, owe, earn or spend files under one of them:
Assets: what you own (cash, investments, retirement fund, home, car, money owed to you).
Liabilities: what you owe (bond, vehicle finance, credit card).
Equity: the residual, your net worth.
Income: what comes in (salary, dividends, interest, rent).
Expenses: what goes out and is genuinely consumed (living costs, interest, insurance, fees).
The first three are your balance sheet; the last two are your income statement. That is the entire architecture of financial statements, scaled to one household.
The numbering convention (and why it is worth copying)
Accountants number the COA by type, and the convention is near-universal: 1000s for assets, 2000s for liabilities, 3000s for equity, 4000s for income, 5000s and above for expenses.[2] The numbers are not decoration. They sort your accounts into the right statement automatically, and, the part that saves you future pain, leaving gaps between numbers lets you insert a new sub-account later without renumbering everything below it.[2] Open "1210 Local brokerage" today; when you add a second broker next year it becomes "1215" and nothing else moves.
Borrowing this convention is the single cheapest way to make a personal system behave like a real set of books rather than a spreadsheet that grew by accretion.
The design trade-off: granular enough to be useful, coarse enough to maintain
The temptation, once you start, is to split everything. Fifty expense lines. A separate account for every subscription. Resist it. The codified warning applies just as much to a household as to a business: a chart of accounts "can become unnecessarily complex if it contains too many categories… this slows down data entry, increases the risk of errors, and makes reports harder to generate and harder to understand."[3]
The workable rule is a judgement call, not a standard, so treat it as such: start coarse, and split a category only when it routinely crosses a size that matters to you, or when you have a recurring question about it that the current grouping cannot answer. You do not need a line for "coffee." You might genuinely want interest split from capital, or offshore split from local. Granular where it earns its keep; coarse everywhere else.
The two traps that quietly corrupt most net-worth spreadsheets
Here is where a proper COA stops being tidy housekeeping and starts protecting you from wrong numbers. Two transactions get mis-filed constantly, and both distort your picture in the same direction: making you look poorer and worse at saving than you are.
Trap one: a debt repayment is not all expense. When you pay a bond instalment, only the interest portion is an expense. The capital portion is a movement between accounts, a liability (your bond) going down, and it does not belong on your income statement at all. In our worked household, a monthly bond instalment of R24,773 splits into roughly R16,485 of interest (a real cost) and R8,287 of capital repaid (not a cost: you are converting cash into equity in your home).[4] File the whole R24,773 as "spending", as a single-entry list naturally does, and over a year you overstate your cost of living by about R99,000 and understate your wealth growth by the same amount. That is not a rounding error. That is the difference between "I can't seem to save" and "I saved R99k I never noticed."
Trap two: paying off the credit card is not an expense either. The day you settle a R20,000 card balance, nothing happens to your net worth. An asset (cash) falls by R20,000 and a liability (the card) falls by R20,000; they cancel. The actual spending happened earlier, purchase by purchase, when you swiped the card. Booking the paydown as a fresh R20,000 expense double-counts money you already spent.[4] In the template below, a card is account 2210 (a liability) and paying it is a transfer between 1110 and 2210, never a line in the 5000s.
Both traps have the same root cause: a flat list has no way to know that "money left my account" is not the same as "I got poorer." A chart of accounts, with assets and liabilities kept separate from income and expenses, encodes that difference by design. This is the quiet argument for double-entry that runs under this whole series: it is not bureaucracy, it is the thing that stops these two mistakes at the structural level.
The template (copy this and start)
Below is a minimal personal chart of accounts, the same one our worked household uses. It is deliberately an adaptation, not an external standard: no accounting rule governs a household COA, so this is a defensible starting skeleton, not gospel. Take it, delete what you do not have, and add numbers in the gaps as your position grows.
Two lines in that structure are doing the quiet, important work. Interest is an expense (5200); the capital repayment is a liability movement (2110), not an expense. And a credit-card paydown is a transfer between 1110 and 2210, not a line in the 5000s. Get those two right and you have already avoided the errors that corrupt most home-grown trackers.
So where does this leave you?
A chart of accounts is not accounting for its own sake. It is the difference between a spreadsheet that tells you how much left your account and a set of books that tells you where it went and whether you are actually better off. The five types, the numbering, and the two traps above are most of what a household ever needs. Build it once, and every question that follows, what did I really spend, how much did I actually save, was it me or the market, has somewhere to be answered. That is where treating your own finances with a bit of business rigour starts paying for itself, and it is the standard we built Monverdo to hold your numbers to.
About the author
Rian Cronje comes to personal finance from the outside. After 25 years in corporate finance, in Group Financial Controller roles, multi-currency consolidations and digital transformation, the unglamorous rigour of making a business's accounts actually reconcile, he found almost none of that discipline had reached the way individuals track their own wealth. He is not an advisor; he has nothing to sell you about where to put your money. He built Monverdo to close that gap: to hold a person's wealth to the standard a company holds its own books, and to break down the jargon that keeps capable people, him once included, locked out of their own numbers.
Sources
AccountingCoach, "Chart of Accounts: In-Depth Explanation with Examples." accountingcoach.com/chart-of-accounts/explanation (accessed 23 Jun 2026).
AccountingTools, "Chart of accounts numbering." accountingtools.com/articles/chart-of-accounts-numbering.html (accessed 23 Jun 2026).
NetSuite, "Chart of Accounts: Definition, Best Practices, and Examples." netsuite.com/portal/resource/articles/accounting/chart-of-accounts.shtml (accessed 23 Jun 2026).
Monverdo worked household. Bond instalment R24,773/month splits R16,485 interest + R8,287 capital; about R99,456 capital repaid over the year. Credit-card settlement is an asset-and-liability transfer, not an expense. Figures verified in code; full detail in Cornerstone 1.
See your real net worth across every account, in rand or dollar.
One reconciled view, the same number whichever way it’s checked. Monverdo is the personal wealth platform built like a real one.