I have worked on upgrading a payroll add-on in the UK and every time I visited a client it was fairly big, factories with 100-200 workers. Does internal payroll worth it for smaller ones like 10-15 employees? Or at least 10-15 employees per country, as usually every country subsidiary needs a totally different payroll right?
The problem is the usual one: it is not possible, or at least I don't know how others do it, to estimate the total costs of bringing payroll in-house. When you have 15 employees outsourced payroll costs like €5000 a year in France in Austria maybe €3000 a year. In-house means a roughly €10K one time investment (roughly €2-3K licence, roughly 6-10 days consulting, I was thinking 2-4 should be enough but I just received a 10 day offer from a solution center in France, maybe France has complicated laws...), then maintenance, upgrades and the training of new users if the old one leaves. Let's assume now that the actual cost of doing it is 0 - you employ an accountant already who has some free time and you have mostly fixed salaries so it is easy.
Still, there can be other costs? Because somehow I don't see other smaller companies or smaller subsidiaries doing it?
Perhaps on a larger note, how does one even estimate the cost of bringing any outsourced operation in-house? I just have no idea, this is why my idea is to ask if others do it at such sizes. Basically I am hunting for examples of people saying "oh we thought it will be cheaper and then there was this X, Y, Z unforeseen cost and it was not".
I wonder if this is how business really works, you cannot foresee your costs, just learn from the mistakes of others? Basically you need an expert who already made the mistakes? (Niels Bohr: being an expert means making all the possible mistakes in a narrow field and learning from them. Miklos: yes, that is why we are C/AL experts
So I would be both interested if any methodology for estimating the cost of in-housing operations exists, and in your opinion why do I see that in-house payrol does not quite worth it for companies with 10-15 employees.