Starting or creating a family office
What Records Should Support the Office's Expense Allocation Decisions?
Short answer. Support each allocation with a written policy, source documents, and a clear record of who approved it. Keep invoices, receipts, service descriptions, usage records, allocation calculations, and exceptions together. Consistent records let the family review how costs were assigned, resolve questions, and apply the same rules across relatives and family branches.
Every expense allocation should be traceable from the office policy to the supporting documents and the final amount charged. A clear record helps relatives understand why a cost was assigned to a household, branch, shared service, or the office itself. It also gives staff a consistent process to follow when similar expenses arise.
Write Down the Allocation Rules
Start with a written policy that explains which expenses the office pays, which are billed to particular users, and how shared costs are divided. State the basis for each category. For example, an expense might be allocated according to documented usage, a service provided to a specific household, or an agreed family-wide formula. The policy should identify who can approve a new allocation method and how exceptions are handled.
Keep the policy with the family office's governance materials and make it available to the people affected by it. If the family changes its approach, record the decision, its effective date, and the reason. Applying the same written rules over time can reduce misunderstandings and concerns about favoritism.
Keep the Source Documents and Calculation
For each charge, retain the original invoice or receipt, the vendor's description of the work, proof of payment, and any records showing who received or used the service. For a shared expense, keep the calculation that connects the total amount to each portion assigned. A reviewer should be able to follow the arithmetic without relying on someone's memory.
When an expense covers more than one purpose, document the split and the basis for it. If the office uses an estimate because precise usage records are unavailable, label the estimate, explain how it was made, and identify who approved it. Keep notes about unusual items, disputed charges, credits, and corrections with the related transaction.
Record Review and Approval
Set out who prepares an allocation, who reviews it, and who can authorize an exception. Keep dated approval records, including the name or role of the approver and any conditions attached to the decision. A small office may use a straightforward review process, but the records should still show that the allocation was checked by someone with appropriate authority.
Organize the files by period and expense category, with a consistent way to connect each allocation to its supporting documents. Reconcile allocated amounts to the underlying invoices and office accounts. If relatives ask how a cost was assigned, the office can provide a concise explanation backed by the policy and records.
Make the Process Useful to the Family
Expense allocation is partly an administrative task and partly a governance decision. The family needs to agree on the services the office provides and on how their costs are shared. Keep records of those agreements alongside the operating policy, and review them when the office's services or the people it serves change.
For related planning, see records for expense allocation would repeat this page, so instead review allocating costs among family branches, handling different levels of office use, and single family office governance. A written, consistently applied record gives the family a practical basis for reviewing charges and resolving questions.
It is important to have objective rules set up as early as possible to prevent bitterness from perceived favoritism, real or not, that can leave scars for a lifetime between family members.
Sources: How to Start a Family Office, The Single Family Office. Informational only, not financial, legal or tax advice.