How to Track Advisor Fees During M&A Due Diligence

To track advisor fees during M&A due diligence properly, you track three numbers per workstream, not one number for the deal: what you have been billed, what you have committed but not yet been billed for, and where the total is forecast to land against the cap. Most deal teams track only the first, the billed figure, which is why overruns are discovered weeks after they happened. By the time an invoice tells you a workstream went over, the work is done and the leverage to challenge it is gone.

The difficulty is not arithmetic. It is that the information lives in five places at once, legal here, financial there, tax in someone's inbox, and it arrives on each advisor's schedule rather than yours. Tracking advisor fees well is mostly a problem of getting current, structured numbers out of people who are busy doing the diligence, and holding them against a budget that does not quietly move.

Why is it hard to track advisor fees during due diligence?#

Learning how to track advisor fees during due diligence is hard because the cost data is fragmented across advisors and time-lagged by invoicing, so by default you are reconstructing the past instead of watching the present. Each workstream runs to its own engagement letter, bills on its own cadence, and reports spend only when asked or when the bill goes out. The deal lead ends up assembling a cost position by hand from scattered emails, PDFs, and the occasional call, and that position is always slightly out of date.

Time-and-materials engagements make it worse, because the number you care about is a forecast, not a fact. On a fixed-fee workstream you at least know the ceiling. On T&M, the estimate is really a projection of a meter that is still running, and the gap between the fee estimate and the eventual actual is exactly where budgets break. The Project Management Institute's Pulse of the Profession 2018 found 52% of projects experienced scope creep in the prior year, up from 43% five years earlier, and diligence is unusually exposed because the whole exercise is designed to uncover things you did not budget for.

The structural issue is leverage. An invoice is a record of money already spent; it gives you nothing to negotiate with. A committed-cost view, by contrast, shows work authorised but not yet billed, while there is still a conversation to be had. Tracking that you cannot act on is just bookkeeping.

What should you track, and how often?#

Track four figures per workstream and refresh them weekly: the budgeted estimate, committed spend, actual billed spend, and a forecast to completion against the cap. The cadence is as important as the columns. A number you update monthly on a deal that moves weekly is decorative.

Keep the structure at the workstream level, because that is where you can act. A single combined "advisory fees" total tells you the deal is over budget but not which advisor, which scope, or which conversation to have. Splitting legal, financial, tax and commercial, and on larger deals technical and environmental, gives you variance you can point at. This is the same spine a usable diligence budget is built on, and the reason a flat total is almost useless for control. That structure only earns its keep if the four figures behind it stay current, which is what live cost and scope tracking across every advisor workstream is built to do, rather than a snapshot someone updates when they remember to.

The illustration shows the read you want in five seconds: legal and commercial are on track, tax is creeping, financial is forecast over its cap before a single overrun invoice has arrived. That is the difference between tracking that warns you and tracking that documents what already went wrong.

The weekly cadence is non-negotiable for one reason: variance compounds quietly. A workstream that is two per cent over this week and two per cent over next week is not a flat overrun, it is a trend, and trends are only visible if you sample often enough to see the line bending. Monthly tracking samples too rarely to catch the bend, so the first time the number registers is when it is already large. The cost of a weekly update is a few minutes per advisor; the cost of a monthly one is finding out at the IC that the financial workstream landed seventeen per cent over with no decision behind it. There is a fair objection here, which is that not every workstream warrants weekly attention, and that is true: a small fixed-fee tax line with a hard cap can be checked far less often than a large time-and-materials financial strand. Calibrate the cadence to the exposure, but err toward looking too often rather than too rarely, because the cheap deals to control are the ones you caught early.

How do you track advisor fees in practice?#

In practice you track advisor fees by standardising what each advisor reports, capturing it against the budget the moment it arrives, and treating the forecast, not the last invoice, as the headline number. The mechanics are simple; the discipline is the hard part.

The hard limit on doing this in a spreadsheet is not the columns, it is the chase. Across four or five advisors, keeping every line current weekly is a part-time job, and it falls on the person whose attention the deal most needs elsewhere. Running multiple advisor workstreams in parallel is where manual tracking quietly degrades: the more advisors, the staler the sheet, until the cost position is once again a reconstruction rather than a live view. That is the point at which tracking should stop being a manual task and start being a property of the system you keep the budget in.

Frequently Asked Questions#

How do you track advisor fees during due diligence?#

Track three numbers per workstream rather than one for the deal: actual billed spend, committed spend (work authorised but not yet invoiced), and a forecast to completion against the engagement-letter cap. Refresh them weekly. Committed and forecast are the figures that give you time to act; invoices alone only confirm what already happened.

What is the difference between committed and actual advisor spend?#

Actual spend is what has been billed to date; committed spend is work that has been authorised but not yet invoiced. Committed is the early-warning figure, because it shows cost building while there is still a conversation to be had. Tracking only actuals means you discover overruns weeks late, once the invoice lands.

How often should you update a diligence cost tracker?#

Weekly on a live deal. Advisor spend, especially on time-and-materials workstreams, changes faster than a monthly cadence can capture, and a stale tracker gives false comfort. PMI's Pulse of the Profession 2018 found scope creep on 52% of projects, and that drift only becomes visible if you are looking at the numbers while the work is happening.

Can you track advisor fees in a spreadsheet?#

You can, for a single slow engagement, but it breaks across multiple advisors and any time-and-materials exposure, because keeping every workstream current weekly becomes a manual chase that falls on the deal lead. The structure (workstream, cap, committed, actual, forecast) is right; the manual updating is what does not scale.

Sources#

1. Scope Patrol: Pulse of the Profession 2018. Project Management Institute, 2018. 52% of projects experienced scope creep in the prior 12 months, up from 43% five years earlier.