Choosing a Family Office Bank Means Separating Cash, Custody and Advice

When a US$6 million capital call must reach a fund by deadline, the office needs settled cash in the right entity and a bank that can execute under its approval rules. That test exposes gaps a family-office services menu can hide. Custody, lending, advice and consolidated reporting may sit with the same group—or with different firms. The office needs to know who owns each handoff.

Start with the work and the entities. Then ask each finalist to show the same payment, approval and data-export process. The worked case below turns those answers into a decision that can be checked.

01The bank's job comes before its brand

A family office may need an account for payroll and bills, a way to move cash among legal entities, safekeeping for securities, a borrowing facility, investment advice, or some combination. Write down which jobs the new relationship must perform. A bank that is excellent at one may not be the right provider for another.

An operating or commercial bank may be the practical home for entity accounts, payments and treasury controls. A private-bank relationship may combine some of that work with lending, planning or investment access. An outside custodian may hold securities while the bank handles cash; a separately engaged adviser may make or recommend investment decisions. These are possible arrangements, not universal service definitions. Confirm the legal provider, accounts and agreement behind each proposed role.

Bank of America Private Bank, for example, publicly describes bill payment, treasury, lending, accounting and investment services. That catalogue shows possible scope. The office still needs the legal provider, account, approval path and contract for each service it wants.

Keep the family's decisions distinct from the provider's work. The office or its designated fiduciaries should define payment authority, cash reserves, investment policy and exceptions. A bank can execute within those instructions, but an account opening or relationship-manager promise does not silently transfer the family's governance responsibility.

02Map cash, custody, credit and advice to legal entities

Build the map at the account and contracting-entity level, not at the family brand level. A holding company may own a fund interest and owe its capital call; a trust may hold assets elsewhere; a management company may pay payroll. Their cash cannot be treated as one freely spendable balance.

The map prevents a familiar mistake: “the bank has it” can refer to a deposit, a brokerage account, a credit affiliate or a dashboard. These are different contractual and protection arrangements. Our family-office structure guide separates operating roles from legal ownership and decision authority.

Ask for a sample account hierarchy and file export using the office's entity names, masked if necessary. Does the bank preserve ownership and access boundaries when it aggregates information? A report that shows all balances to a principal does not by itself authorize transferring one entity's cash to another.

03Shortlist against requirements that can be proved

Invite candidates that plausibly cover the required jobs, but avoid awarding points for a service-page claim. Butterfield's family-office banking questions usefully raise structure, multi-jurisdiction work, team continuity and integrated platforms. Turn such themes into evidence requests tied to your own entities.

Send the same short request to each finalist:

• Entity onboarding: Which entities can open accounts, what documents are required, and who resolves a delayed beneficial-ownership review?
• Payments: Show initiation, independent approval, beneficiary changes, release windows, callbacks and exception escalation for the named paying entity.
• Custody and data: Identify the actual custodian, available asset types, statement dates, export fields and delivery frequency. Ask who fixes a failed feed.
• Liquidity and credit: State deposit products, each sweep destination and underlying institution or instrument, settlement timing and any proposed facility's borrower, conditions and approval status.
• People and continuity: Name the service owner, operations backup, credit contact and the procedure when the relationship manager is absent.
• Commercial terms: Quote account, custody, FX, payment, reporting, advisory and credit charges separately, including implementation and exit costs.

An answer of “available” is a lead for investigation. Match proof to the obligation: an approval workflow needs a demonstration, entity eligibility needs completed onboarding, credit needs a signed facility and satisfied draw conditions, and legal protection needs the actual account and institution details. Mark an unproved requirement unknown, not absent or passed.

04Run one payment-day test

Use one common fixture so each bank answers the same question. The following case is fictional; the dates, cash and thresholds are illustrative, not a real family's results.

The minimum funding arithmetic is US$6.0m due − US$3.5m settled and available = US$2.5m gap. If the office requires a cash floor or expects fees, it must add those amounts before deciding how much to raise. The office must secure an eligible funding route; the bank is being tested on receipt, availability, control and release. Do not count a maturing security, a different entity's cash or an unapproved facility as Monday liquidity.

The payment test has four observable gates:

1. Authority: Pass the demonstration only if the payer's initiator and a separate releaser are shown in a dated role/audit record, and changed instructions pause for independent verification. A missing role or unverified change fails; a slide describing controls stays unknown.
2. Availability: The office's funding route passes only with eligible authorization and confirmed net settlement into the payer account by Friday 5:00 p.m. Eastern. The bank passes its part only when it documents that those funds will be usable in that account before Monday's 10:00 a.m. office approval. An unapproved line or unsettled bill fails the funding assumption; an untested crediting time is unknown.
3. Execution: For the shortlist, the sending bank must document the US$6m limit, 10:00 a.m. office approval, noon release, chosen rail, trace and escalation contacts under its offered service. It must identify the latest safe initiation time for any backup route. The office confirms with the fund what counts as receipt by 3:00 p.m. A bank route or cutoff incompatible with that requirement fails; actual recipient credit is a later live outcome, not a bank marketing pass.
4. Record: A dated sending-bank confirmation identifies payer, beneficiary, amount and transaction reference. The office obtains separate fund acknowledgment or receiving-bank evidence of beneficiary receipt, then reconciles both records to the notice and entity ledger. A release receipt or dashboard total alone does not prove on-time receipt.

A demonstration and indicative written scope can support a conditional shortlist. A hard-stop failure rules a candidate out for the primary payment role; an unknown requires a named proof owner and date. Before final appointment, obtain the actual entity/account approval, signed service terms and any facility approval required for the funding route. Before cutover, run the controlled live or parallel payment and data acceptance test. Each stage has a different proof.

05Compare the proposals on the same page

Do not use one bank's marketing categories as the scoring rubric. Send both finalists the same payer, amount, payee-change condition, proposed Friday funding arrival, Monday cutoff/time zone, expected transaction volume and account mix. For the commercial quote, use the same hypothetical operating scope: 12 entity accounts, 40 domestic outgoing wires and 12 USD-to-EUR payments of US$100,000 each per year, plus an average US$1 million eligible sweep balance. Ask for the FX reference rate and spread at the same stated quote time. Price a US$20 million custody account, borrowing and investment advice as separate scenarios if proposed. These are comparison inputs, not an estimate of a typical family office.

The table is a reusable blank shortlist worksheet, not a ranking of real banks. For the requirement rows, enter a document or demonstration reference, date, owner and pass / fail / unknown at the shortlist stage. An unknown needs a proof owner and deadline. For the annual-cost row, enter the calculated amount and mark the quote comparable / incomplete / unknown, with assumptions and exclusions; a low number is not a control pass. Later, record signed appointment and live cutover evidence separately.

A candidate can be the better operating bank without being the better custodian or adviser. If the office keeps an outside custodian, the decision sheet must name the transfer path and data handoff. If it wants one integrated relationship, the office still needs to identify the actual firms and agreements within it. Our data-aggregation guide explains why a combined dashboard does not itself verify source records.

For the primary operating role, a shortlist fail on payer eligibility, required approvals, or a sending-bank route and cutoff that cannot support the fund's receipt requirement excludes the candidate. The sending bank cannot independently guarantee the fund's credit. A shortlist unknown needs a named proof owner and deadline. Once both banks clear the hard stops, calculate the same base-case annual net cost for each. Show one-time implementation and exit charges outside that annual total, and do not net a variable sweep yield unless the quoted rate basis and eligibility are stated. Then name what service or control each price trade-off changes.

06Check protection, fees and contract boundaries

For US deposits, use FDIC BankFind to check the actual insured bank, not only the wealth-management brand. For each deposit, identify the depositor, legal bank and ownership category.

The FDIC's deposit-insurance FAQ explains that branches of the same bank are not separate insured banks. The standard amount is US$250,000 per depositor, per insured bank, per ownership category, subject to rules for the actual accounts. For a sweep, identify the destination product, underlying bank or banks and account records; a money-market fund is not a bank deposit. Use the FDIC estimator or specialist review for complex entities and trusts rather than multiplying account labels.

Securities custody is different. SIPC describes protection when a member brokerage firm fails and customer assets are missing; it does not protect against market losses. Identify the broker or custodian and account structure before assuming which regime applies.

If investment advice is part of the proposal, identify the actual provider and governing agreement. For a separately registered adviser, use the SEC's Investment Adviser Public Disclosure system to check registration and Form ADV; Form CRS applies to registered brokers and advisers serving retail investors. If the service is provided by a bank trust or fiduciary department, an absent ADV or CRS is not by itself a failure: verify its legal status, regulator, duties and agreement through the appropriate channel. Do not infer one obligation for every service in a banking group from the words “private bank” or “family office.”

Compare the cost of services each finalist will actually deliver. Price recurring account, custody, advice and data charges separately from outgoing wires, FX conversion, credit use, implementation and exit. Include the sweep destination and yield, the same transaction volume and all exclusions. Unknown quoted items remain unknown. Ask what happens to data access and charges if the office moves assets.

07Migrate with a fallback and an acceptance gate

After conditional shortlisting, complete entity/account and any credit approval; agree written scope, responsibilities, fees, service levels and exit terms before final appointment.

Before cutover, the office CFO or named treasurer signs off on five observed outputs: correct account title and production users; a controlled live transaction or equivalent production record proving the real limit, release and trace, plus independent recipient acknowledgment within the agreed window; an exception reaching the named backup at the agreed time; an entity-ID export reconciled to the ledger; and an authorized, funded fallback whose payer, payee, rail, latest safe initiation time, receipt check and duplicate-payment control have been tested. A parallel simulation can test roles, export and escalation, but cannot alone prove production crediting or limits. The controlled transaction need not equal the illustrative US$6 million. A failed item pauses cutover and keeps the prior payment route available. Keep a dated inventory of recurring payments and capital calls while parallel operations run.

The fallback may be a retained account, documented liquidity reserve or alternative payment route. It must be authorized and fundable; an unopened account does not qualify.

The signed decision record should name the operating bank, securities custodian, funding entity, contract and demonstration evidence, unresolved items and person accepting cutover. It should also state which bank remains the fallback until every acceptance output passes.