Turning accounting expertise into a software product

Accountants build good products because they already know which spreadsheet everyone maintains and why it breaks. The trap is building a full practice suite instead of the one workbook your clients keep asking you to send them.

You have a spreadsheet. You have rebuilt it for forty clients and every one of them thinks it is the thing you do best. That spreadsheet is the product, not the practice management system you have been sketching.

What you already know that a developer does not

You know which numbers matter and which ones only look like they matter. That sounds small and it is most of the value. A developer building in this space has to guess at the difference and will guess wrong, because the distinction lives in years of watching what clients actually decide with.

You also know the compliance edges: what has to reconcile, what a regulator will ask for, what happens at year end. That knowledge is expensive to acquire and you already paid for it.

Why these builds stall

Almost always by scope. The product starts as one calculation and becomes a practice management system, because every client asks for one more thing and each request is reasonable on its own.

The second cause is building for accountants when the buyer should be their clients, or the reverse. Those are different products and picking late means building neither well.

What to build first

The workbook you have already rebuilt more than ten times. Not a generalised version of it. The specific one, with your assumptions baked in, sold to people who have the same problem as the clients you built it for.

Charge for it before it is good. The people who pay will tell you which of the forty variants was the real product.

What to leave out

• Integration with accounting software. Import a CSV until someone refuses to.
• Multi-user and permissions. Sell to one person at first.
• White labelling for other practices, until a practice asks and offers money.
• Anything that has to reconcile with a general ledger. That is a much bigger product than the one you are starting with.