The bespoke tax

Why custom-built enterprise AI quietly becomes a cost you carry for years.

Ahmed, Co-founder. October 2026. 3 min read.

Most large companies that have tried to adopt AI at scale have met the same pattern. A consultancy is engaged, a solution is delivered, and the launch goes well. A year later the people who understood how it worked have moved on, the underlying technology has changed twice, and the company is left maintaining something nobody inside it fully understands.

We call this the bespoke tax. It is not a fee on any invoice. It is the continuing cost of owning something built for you by people who are no longer there.

Where the tax comes from

Bespoke work is shaped to one client’s needs on one day. That is its strength, and also the source of the cost. Every custom decision has to be remembered, documented, and understood by whoever inherits it. When the platform underneath changes, the bespoke parts are the ones that break first.

The company can hire engineers to carry the burden, but then capacity becomes the constraint. The next technology wave arrives, and the same small team is needed to adopt it. The bottleneck returns.

The vendor answer has its own cost

Buying avoids much of this. A good vendor maintains the product, absorbs the change, and spreads the cost across many customers. But a general product is built for the average customer, and no life sciences company is average. The work of fitting it to your processes lands on you, and so does the subscription, for as long as you use it.

The tax is a question of ownership

Both costs trace back to the same source. In one case the company pays for something it does not understand. In the other, it pays for something it does not control. In neither case does the company hold the capability that matters, which is knowing its own industry well enough to say what good looks like.

That knowledge is the one thing a large life sciences company has in abundance. The question worth asking is how to turn it into a workflow the company owns, understands, and can change.