Ask a room of accountants whether their clients waste money on software and every hand goes up. Ask how many run a proper software spend review for those clients, and the hands come down.
That gap isn’t laziness or oversight. A software spend review was, until recently, too expensive to produce for what it returned — so firms quietly skipped it. That arithmetic just changed, and the change turns a service you’ve been declining into one of the more profitable lines you could add.
Why the software spend review never paid off
A thorough spend audit was genuinely costly to produce. Not in cash — in hours.
Someone had to chase down every card statement and expense export. Reconcile vendor names that never match. Untangle which charges were software and which were the office coffee subscription. Cross-reference licence counts nobody had kept current. Chase the founder for the tools they’d bought and forgotten. Only after all of that could the advisory work — the part with any judgment in it — begin.
Call it a day or two of skilled time for one client. Now price it honestly. Bill that at a real rate and the review costs the client more than a chunk of the savings it might find — a hard sell. Don’t bill it honestly and you’re running an advisory service at a loss to win goodwill. Either way, the economics tell you to skip it, or bury it as an unbillable favour inside a compliance engagement.
So that’s what firms did. The software spend review lived on the “we really should” list, next to the gym membership. Everyone knew it created value. Almost nobody could make the value exceed the cost of producing it. The service didn’t fail because it was a bad idea — it failed because the cost floor was too high.
What AI changed about the cost of a spend review
AI didn’t make the spend audit a better idea. It knocked the floor out from under the cost of producing one.
The day or two of reconciliation — the gathering, matching, de-duplicating, and flagging across a messy stack — is precisely the work that now takes minutes instead of afternoons. The expensive input didn’t get a little cheaper. It very nearly went to zero.
Hold that change in your head, because its consequences run deeper than they first look. When the cost of producing something collapses, you don’t just do the same thing more cheaply. You do things that were never viable before.
What a billable spend review makes possible
Three things, in order of how much they matter.
First, the software spend review becomes worth billing — because it’s no longer subsidised by hidden hours. The value it uncovers now clears the cost of finding it, comfortably. What was a loss-leader becomes a service line with a real margin.
Second, it stops being a one-off. A review that took two days could only ever happen once, if that. A review that takes minutes can run quarterly, on every renewal, or continuously in the background. A one-time cleanup becomes an ongoing relationship — recurring revenue instead of a favour you did once.
Third, and most important: the margin moves. When the grunt work was expensive, that’s where the hours sat. Now that the grunt work is nearly free, the value concentrates in the part that was always scarce — interpretation, recommendation, the advice. The work you were best at was the smallest slice of your billable hours, because setup ate the rest. That inverts. You now spend your time almost entirely on the high-value end, because the low-value end takes care of itself.
The software spend review as a recurring advisory line
Here’s the implication most firms haven’t sat with. If the spend audit just went from unviable to genuinely profitable, then a service you’ve been quietly declining is now one of the most attractive lines you could add — no new headcount, no new discipline, built on data you can already reach.
The question is no longer can we afford to do this. It’s what happens when the firm down the road figures out they can, and starts having the software conversation with your clients before you do.
The software spend review was always a good idea. For the first time, it’s also good math. The firms that move while that’s a differentiator get to define the relationship. The ones that wait get to compete on it.
