A value added that is not the one in the accounts

The management spreadsheet shows €480,000 of value added, the tax schedule computes €512,000. Neither is wrong: they are two different notions bearing the same name. The one on the schedule obeys exhaustive lists, and it is the one that serves as the tax base, capped at a percentage of turnover.

Two notions, one name

Management value added reads like a margin: output for the period less what was consumed from third parties. It measures what the business creates itself, and every management accounting textbook defines it in much the same way.

Value added for tax is not defined that way. It results from adding and subtracting items the form lists one by one, with no reference to any general notion. Two businesses with identical accounts therefore reach the same figure, whatever their own analysis.

That difference is not a design flaw. A tax base must be computable identically by everyone, which an open notion never allows. The price of that certainty is that no economic reasoning can substitute for reading the list.

The commonest error is precisely to reason. An item that looks like an external consumption but does not appear in the list of deductible charges is not deducted, even where its exclusion looks illogical to a manager.

The sheet is therefore completed box by box, starting again from the trial balance and never from the management table already prepared. Reusing the latter saves ten minutes and costs a full rework the moment the gap surfaces in the consistency check against the profits return.

The computation in four steps

The form imposes a sequence: reference turnover, then other income to be included, then charges to be deducted, and finally the value added obtained by adding the first two totals and subtracting the third. Each total carries its own set of boxes.

Reference turnover is not always the figure in the profit and loss account. Some activities include income the accounts classify elsewhere, and the form says so item by item: you start from the box, not from the nearest accounting balance.

Other income to be included covers operating subsidies and certain transfers of charges, but only those the list names. Exceptional income, however large, stays outside as soon as it does not appear there.

Charges to be deducted follow the same logic. Purchases, external services, other ordinary management charges, turnover taxes and the like, depreciation on assets leased out under a management lease, a finance lease or a lease of more than six months belong; staff costs do not. That is what opens the gap with management value added.

• Total 1: reference turnover, as the form defines it
• Total 2: other income to be included, exhaustively listed
• Total 3: charges to be deducted, exhaustively listed
• Value added: total 1 plus total 2, less total 3
• Tax base: that value added, capped at 80% or 85% of turnover

Headcount, the second half of the sheet

The same schedule carries the declaration of staff numbers. That is no administrative afterthought: the figure is used, for two thirds, to split the value added between the municipalities where the business has premises or employs, so it has a different audience from the base computation.

A business with a single site completes that part without difficulty. A business employing across several sites must split its headcount by location, which assumes payroll can attach each employee to an identified establishment.

Splitting by municipality also assumes movements during the year are tracked. An employee who worked at several sites is not split between them: they are declared where their period of activity was longest, and at the principal establishment if the periods are identical.

That attachment is often approximate in small multi-site structures, where everyone is declared at head office. The error does not change the amount of the contribution, but it distorts the territorial split of the value added — and it costs: a 200 € fine per wrongly attached employee, up to 100 000 €.

It eventually shows. When a gap appears between observed activity and declared headcount, the business must then reconstruct attachments it never kept, one year at a time.