Writing

Notes on running a business on real numbers

Accounting, stock, payroll and tax compliance, written from what the system actually does. Mostly about the places where two numbers that should agree stop agreeing, and what to do about it.

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Choosing a system

Seven signs your spreadsheets have stopped working

Spreadsheets do not fail loudly. They keep producing a number long after it stopped being the right one. These are the symptoms worth noticing before an audit notices them for you.

3 min read

Choosing a system

How to choose an ERP without regretting it in year two

Most ERP regret is not about features. It is about who owns the data, what a change costs, and whether the numbers on two screens agree. Here is what to examine before you sign.

3 min read