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November 10, 2026
One Truth: Why Family Offices Need Both Accounting and Investment Views of the Same Data
Why accounting and investment net worth figures rarely match, and how family offices can run both views from one reconciled source of data.
Topics
Accounting
Reporting
Categories
Family Office Reporting
Financial Reporting
Family Office Software
How Accounting and Investment Teams See the Same Wealth
A typical family office manages a web of trusts, LLCs, partnerships, foundations, and individual accounts, often across several jurisdictions. Holdings range from liquid securities to private equity, hedge funds, direct real estate, and operating businesses.
Two teams depend on that data, and they ask very different questions of it.
The accounting team asks: What do we own, what did it cost, and what do we owe in taxes? Its view follows the general ledger, cost basis, accruals, and the legal-entity chart. It is built for accuracy and auditability, and it drives decisions such as:
- How an entity funds a capital call when it is short on cash
- What estimated taxes each entity owes
- When gifts and estate transfers should happen
- What each entity can afford to spend
The investment team asks: How is the portfolio performing, and what are we exposed to? Its view follows market values, time-weighted and money-weighted returns, asset allocation, and look-through exposure across entities and managers. It drives decisions on allocation, manager selection, rebalancing, and the pacing of private commitments.
In industry terms, the accounting view is the accounting book of record (ABOR), and the investment view is the investment book of record (IBOR).
The wealth is the same. The questions are different, so each team needs its own view.
Why Family Office Reporting Breaks Down
Most family offices have plenty of information. The harder part is keeping it consistent and making it usable. Accounting data sits in one system and investment data in another. Ownership records are kept separately, capital account schedules live in spreadsheets, and manager reports need manual review before anyone can use them.
When each team builds its own version, the totals rarely match. At the quarterly family meeting, the controller shows one net worth figure, the CIO shows another, and no one can quickly explain the gap. Trust erodes, staff time goes to reconciliation, and decisions rest on numbers nobody fully believes.
Why the Numbers Differ, Even When the Data Is Right
In most cases, the gap isn’t an error. It comes from timing and basis.
Take a private equity fund investment. The Q3 statement arrives in late November. Until then, the investment view carries a rolled-forward estimate: the last reported NAV, adjusted for calls and distributions. Once the statement lands, the investment view updates the 9/30 value and rolls forward from there. Accounting runs on its close calendar. By late November, Q3 has likely closed, so the true-up goes into the next open period instead of back into Q3. Both numbers are correct for their purpose. They just pick up the same information at different times.
Other differences are structural. Accounting works from cost or tax basis, records accruals, and books by entity. The investment view uses fair value and looks through entities to the underlying exposure.
The two numbers won’t always match, and they shouldn’t have to. What matters is that every difference can be traced and explained.
Where the Two Lenses Meet
The best decisions need both views. Say the CIO wants to trim an equity position. The investment view shows how much to sell and why. The accounting view shows the most tax-efficient way to make the trade: which lots, in which entity, and at what after-tax cost.
One Source, Two Views: Running ABOR and IBOR From the Same Data
Another spreadsheet, another point solution, or a pair of disconnected systems won’t close the gap. What works is one reconciled source of transaction data with two lenses on top. In practice, that means:
- A single security master and a single entity and ownership hierarchy
- Transaction-level data feeding both views
- A defined valuation policy, including how lagged private marks are estimated and trued up
- A standing reconciliation that bridges the accounting and investment numbers each period
Accounting and investment views aren’t competing versions of the truth. They answer two different questions about the same wealth: what the family legally owns and owes, and how that wealth is performing.
Offices that run each view from its own data will keep reconciling and still struggle to explain the gaps. Offices that run both from one reconciled source spend their time on decisions instead of reconciliations, and they give the family a picture of its wealth that everyone at the table can stand behind.
How Archway Can Help
The Archway Platform gives family offices one reconciled source of data with both the accounting and investment lenses built in. It serves as the office’s book of record, with the general ledger, partnership and multi-entity accounting, and consolidated investment reporting all running off the same data and transactions. Accounting and investment teams work from the same numbers, and the differences between their views can be traced to the source.
For family offices that want support beyond software, our accounting and operations teams handle family office accounting, partnership administration, and consolidated reporting across public and private assets.
The result is numbers the CFO and CIO can both defend and a clear picture of the family’s wealth.










