You know how much each subscription costs. You don't know the cost of your software stack.
The difference between the two is everything that appears on no invoice: time spent transferring information from one tool to another, duplicate data entry, data that gets lost, hours wasted trying to make software talk to each other when they don't. The true SMB software cost is the sum of subscriptions plus the sum of time burned filling the gaps between them.
This article gives you a method to calculate that amount. Not a vague estimate. A calculation you can do tonight, with your own numbers. And a concrete way out: how to start consolidating without a six-month project, without a risky migration, without an extra budget.
Table of contents
<span id="section1"></span>1 – The visible cost: your subscriptions, added up
Let's start with what you can see. The exercise is simple, but many business owners have never done it in full. Open your bank statements from the last month. Count every line that carries the name of a software or online service. You'll probably be surprised.
1.1: The statement that tells the truth
An invoicing tool. A CRM. A paid shared spreadsheet. A video conferencing tool. An email marketing service. Website hosting. Accounting software. An electronic signature tool. Maybe a second CRM, because the salesperson has their habits. Maybe an individual AI account. Or three.
Each line costs between 15 and 80 euros per month. None of them seem unreasonable on their own. It's their accumulation that weighs on you. For an SMB of 5 to 15 people, the total software subscriptions often falls between 300 and 1,200 euros per month. You know this, because you sign off on the transfers. But that number only tells half the story.
1.2: The "per seat, per month" trap
Many tools charge per user. Three salespeople, three licences. One accountant, one licence. The business owner, one licence. When the team grows from 5 to 10, the software budget doesn't always double — but it rises mechanically, without the perceived value increasing at the same rate.
The problem isn't the unit price. The problem is that every tool added creates a new silo. And every silo creates invisible work to connect it to the others. That work appears on no quote.
1.3: What the statement doesn't show
Your bank statement shows subscriptions. It doesn't show ancillary costs: the paid integration between two tools, the consultant called in to "connect" your CRM to your invoicing system, the training nobody completed, the premium module activated one month and then forgotten.
It also doesn't show ghost subscriptions: the tool nobody uses anymore but nobody has cancelled. Many SMBs have at least one. Some have three. SMB software costs start with an honest inventory — and that inventory starts with the statement, not with memory.
<span id="section2"></span>2 – How much do the hours connecting your tools really cost?
The heaviest cost in your software stack isn't a subscription. It's the human time spent moving information between tools that don't talk to each other. And that cost nobody measures — because it looks like normal work.
2.1: Double entry, triple entry
A prospect contacts you by email. You enter their details into your CRM. Then into your invoicing tool when they become a client. Then into your tracking spreadsheet. Then into your email marketing tool to add them to a list. Four entries of the same name, the same address, the same phone number.
Multiply by the number of prospects handled each week. Multiply by the number of people doing this work. You get hours. Hours spent copy-pasting what a shared memory would have retained just once. If the topic of company memory resonates with you, nous avons détaillé comment la construire sans DSI.
2.2: The time spent "making the connection"
Friday at 5pm. A client calls about a billing issue. You search for their record in the CRM. You switch to the invoicing tool to find the relevant invoice. You open your email inbox to find the exchange from three weeks ago. You go back to the CRM to log the call. Four tools, one client, ten minutes lost.
This isn't a malfunction. This is the normal operation of a stack of tools that share no common memory. Count how many times a day someone on your team does this back-and-forth. Two to four hours per week of manual linking is a common minimum. Often more.
2.3: The cost in euros of that time
Take your fully loaded hourly rate — or that of the person doing the linking work. Multiply by the number of weekly hours spent transferring, copying, searching between tools. Multiply by 45 weeks.
If your fully loaded rate is 50 euros per hour and you lose three hours per week in linking, the annual cost is 6,750 euros. That figure appears nowhere. It features on no subscription invoice. But it is real, recurring, and it grows with every tool added to the stack.
<span id="section3"></span>3 – The cost of duplicates and blind spots
Beyond the linking time, there is what fragmentation makes you miss. Duplicates create confusion. Blind spots create lost business. Both cost money without leaving a visible trace.
3.1: When two client records contradict each other
A contact exists in your CRM with one email address. The same contact exists in your invoicing tool with a different address. Which one is up to date? Nobody knows. Your salesperson sends a follow-up to the wrong address. Your accountant invoices the wrong contact. The client receives two contradictory messages on the same day.
This isn't anyone's mistake. It's a structural mistake. When every tool has its own contact database, duplicates are inevitable. And every duplicate is a potential source of loss: of time, of credibility, sometimes of revenue.
3.2: What you can't see because nobody makes the connection
A prospect has visited your website three times this week. Your analytics tool knows this. Your CRM doesn't know it. Your salesperson doesn't know it. The prospect is waiting for a call that never comes. They sign with someone else on Monday.
A client has paid every invoice late for six months. Your invoicing tool knows this. Your salesperson keeps offering them extended payment terms. Nobody made the connection, because "making the connection" would require the two tools to talk to each other. They don't talk to each other. This is exactly what le piège de la dépendance aux outils SaaS describes.
3.3: The opportunity cost — the hardest to quantify
How many decisions do you make each week with an incomplete picture? How many follow-ups go out too late because the information was in the wrong tool? How many qualified prospects fall through the cracks because nobody sees them crossing the boundary between two pieces of software?
This cost is impossible to calculate exactly. But ask yourself a simple question: if all your company's information were in one place, how many decisions would you have made differently this month? The honest answer is enough to size up the problem.
What your true software budget says
The software cost of an SMB cannot be read from the sum of subscriptions. It is read in the time burned between tools, the duplicates that generate errors, the information that doesn't flow.
You now have a method to calculate this real cost. Do the exercise. The number you find won't please you — but it will give you a clear reason to act.
The way out isn't a six-month project. The way out is a free entry point that first centralises your contacts, then replaces your subscriptions one by one. You decide the pace. You decide when.