Family office: consolidation and family wealth tax in 2026

In a family office, the chartered accountant consolidates the wealth's multiple entities (holding, SCIs, securities portfolio, operating companies), steers group taxation (parent-subsidiary regime, grouping), makes intra-group flows reliable and produces consolidated reporting. In France the family office has neither an order nor its own tax regime, but depending on the activity, a financial-investment-adviser status may apply.

A single family office serves one family and internalises its wealth management. A multi family office shares these services across several families. The accounting logic is the same, but the fee organisation differs. A purely family single family office may escape regulated statuses, whereas advisory or third-party management implies oversight (ORIAS registration, membership of an AMF-approved association).

Family wealth almost always comprises several entities steered separately, which gives a fragmented view. The accountant's value is to aggregate assets and performance at family level, eliminate intra-group flows and produce a readable view: asset value, net return, exposure by asset class.

The parent-subsidiary regime (articles 145 and 216 of the French tax code) exempts dividends upstreamed to the holding by 95%, with a 5% share of costs and charges remaining taxable. It is the mechanism that circulates cash without excessive friction. In return, inter-entity loans and management fees must rest on written contracts, market conditions and real substance, on pain of reclassification.

Consolidation rigour and flow documentation are worth more than any scheme. The accountant brings reliable figures and tax coherence, in coordination with the family's other advisers (notary, lawyer, banker).

Every wealth has its own structure and objectives. To go further, discover our support for family offices, and let's discuss your wealth organisation.