For ultra-high-net-worth (UHNW) individuals and families, a family office has become a preferred option for managing and growing wealth. Specializing in holistic wealth management services, a family office is a private firm that typically manages investment strategy, tax planning, philanthropic giving, estate planning, and more for an UHNW family or group of families.
Family offices can be particularly well-suited for high-net-worth tax strategies, which intersect with other key aspects of wealth management, such as investments, trusts, business structuring, and retirement planning. Since it’s what you keep, not what you earn that may ultimately drive long-term financial health, tax planning is crucial when aiming to maximize after-tax wealth.
In this article, we will explore what family office tax planning is, common tax planning strategies for high-income earners, and why ongoing planning may identify opportunities that once-a-year tax preparation alone may not address.
What Is Family Office Tax Planning?
Family office tax planning focuses on creating and implementing a proactive tax plan that can help minimize tax liabilities while maintaining compliance with tax laws.
Unlike standard tax prep, which typically occurs once a year and centers around preparing tax returns, tax planning with a family office is a year-round activity. Because many aspects of a family’s wealth management strategy impact taxable income, the family office works year-round to align the family’s tax strategies with its investment, estate, and legacy goals.
If you’re an UHNW individual or family seeking comprehensive support, tailored approaches, and familial control, working with a family office may be a good option for you.
How a Family Office Can Help Improve Tax Planning Outcomes
One of the biggest advantages of a family office can be its comprehensive understanding of your finances. This centralized oversight of wealth strategies, decisions, and goals may surface opportunities a fragmented advisor can miss. Working with a family office can also mean tax planning strategies are integrated across family members, trusts, and business interests.
Additional family office tax benefits can include:
- Economies of scale in advisory, compliance, and reporting costs
- Potential to deduct certain investment/management expenses when properly structured
- Ability to act on time-sensitive opportunities (harvesting, gifting windows) quickly
How Family Offices Are Structured And Taxed
The most common types of family offices are a single-family office (SFO) and a multi-family office (MFO). The family office tax structure will determine which tax benefits and deductions are applicable.
Single-Family Office
An SFO provides highly personalized and exclusive support to one family, managing all aspects of that family’s financial and personal affairs. However, due to the high level of personalization and comprehensive approach, SFOs tend to be quite costly (often ≥$1 million per year).
A single-family office may use one or more corporations, partnerships, or LLCs, with the federal tax classification depending on the entity and elections made. Trusts may also form part of the broader ownership or governance structure. LLCs are frequently used because they can offer flexible governance, tax classification options, and limited liability under applicable state law. If the family-office entity is taxed as a partnership or S corporation, taxable items generally pass through to its owners and retain their character, subject to the rules applicable to each owner.
A family-office management entity may qualify as carrying on a trade or business with deductible expenses under §162 where its activities, relationships, and services satisfy the applicable facts-and-circumstances test. The United States Tax Court reached that result on the particular facts in Lender Management, but the decision does not establish a blanket deduction for single-family offices.
Multi-Family Office
MFOs can offer cost-effective solutions to multiple families while delivering a high standard of service by pooling resources and expertise. Each family benefits from shared administrative and investment management services and costs. Expenses are allocated via direct charges to each family for specific services and also as shared operational overhead.
Many MFOs are structured as a Registered Investment Advisor (RIA). As an RIA, the MFO must meet the fiduciary standard, which means it is legally bound to always act in the best interests of its clients.
The structure of an MFO typically consists of a centralized management company and a multi-tiered legal entity layer that includes the families’ holding companies, and any family limited partnerships (FLPs), private trust companies (PTCs), special purpose vehicles (SPVs), limited partnerships (LPs), or series limited liability companies (LLCs). This layered structure is designed to centralize ownership control while helping address risk and liability to protect the families’ assets. The federal tax treatment of an MFO depends on its entity classification. A partnership or S corporation generally passes taxable items through to its owners, whereas a C corporation generally pays federal income tax at the entity level.
An MFO providing investment, administrative, or advisory services to multiple clients for compensation may have a stronger basis for trade-or-business treatment under §162 than an entity devoted solely to managing one family’s investments; individual deductions remain subject to the usual Code limitations.
It’s important that family office tax structuring aligns with your family’s goals, not the other way around. Factors to consider include net worth and financial complexity, desired level of control, types of services sought, and preferences around transparency, communication, and privacy.
Income Tax Strategies for UHNW Families
When it comes to tax planning for wealthy individuals and families, a family office can implement a number of strategies to help reduce tax liabilities.
- Asset location: Coordinate tax-efficient and tax-inefficient investments among taxable, tax-deferred, and Roth accounts. Traditional retirement vehicles generally defer tax, while qualifying Roth distributions may be tax-free; account type, investment characteristics, liquidity, and estate-planning considerations should all be evaluated.
- Tax-loss harvesting: Reduce tax liability by selling underperforming investments to offset gains from high-performing investments, then reinvesting the cash while observing the wash-sale rules and maintaining desired market exposure through investments that are not substantially identical.
- Entity and trust planning: Coordinate ownership, distributions, grantor-trust status, and transfer-tax planning to determine which taxpayer recognizes income and which assets or future appreciation may be included in the taxable estate.
- Charitable giving vehicles: Help reduce income, capital gains, and estate taxes through donor-advised funds (DAFs), charitable trusts, private foundations, and other vehicles.
- Multi-year income timing and coordination with liquidity events: Spread large windfalls across multiple tax years to help avoid spikes.
- Maximizing deferral vehicles (retirement plans, deferred compensation): Potentially lower the overall tax bill through pre-tax contributions.
- Deduction strategies: Employ strategies like bunching, charitable timing, and qualified business income deductions to help reduce overall taxable income.
- Income timing and character (ordinary vs. capital): Manage marginal-bracket exposure by shifting income or deductions between years and controlling whether gains are taxed at regular rates or lower capital gains rates.
- Coordinating state tax exposure alongside federal: Avoid double taxation and leverage timing and deductions.
- Framing “reducing brackets” realistically: The goal is total lifetime tax efficiency, not a single-year number.
State, Local, & International Tax Planning
Many people live, work, and invest in multiple states and even countries. This can create complex income tax issues related to which states and/or countries have the rights to tax your income. Applicable state, local, and international rules and regulations can significantly increase or reduce your tax burden.
Key location-based factors that can influence how your income is taxed include:
- Residency and domicile: If you live in the United States, your state of “domicile” and state of “residency” (which may be the same) determine how your income is taxed. Your state of domicile ordinarily means the place you regard as your permanent home and to which you intend to return, but the legal test varies by state and typically examines both intent and objective facts. Your state of residency may be the same as your domicile, but it can also be a temporary place of living, even if it’s for an extended period of time. Because every state uses a different approach to taxation, changing income tax domicile may be advantageous for some individuals.
- Income sourcing for investments, businesses, and liquidity events: Income sourcing determines what state, locality, or country will tax the income from these different activities. Tax planning evaluates applicable sourcing, apportionment, residency, credit, and allocation rules before a transaction so that income is reported to the jurisdictions entitled to tax it and available credits or exclusions are preserved.
- State taxation of trusts and beneficiaries: Where a trust was established, where the trustee and grantor reside, and where the beneficiary lives all determine how they are taxed.
- Pass-Through Entity Tax (PTET) election: Many states permit partnerships and S corporations to elect or otherwise pay state income tax at the entity level. Under IRS Notice 2020-75, qualifying state and local income taxes imposed on and paid by a partnership or S corporation generally are deductible in computing the entity’s federal taxable income and distributive shares. The economics vary by state and owner. For 2026, individuals are subject to a federal SALT deduction ceiling of $40,400 ($20,200 for married filing separately), with an income-based phase-down that cannot reduce the ceiling below $10,000 ($5,000 for MFS), making taxpayer-specific modeling important.
- State transfer taxes: When you buy or sell real estate, state transfer taxes come into play. However, the rates and rules vary by state. Some states have no transfer tax at all, while others may charge up to 4% or more.
- Pre-transaction planning: Many tax-efficient strategies require significant lead time prior to a liquidity event. Well before the transaction, planning for tax, legal, estate, and financial considerations is critical.
- Cross-border considerations: If you live, work, and/or own international businesses or assets, the complexity of tax planning increases. A number of factors will need to be considered, such as residency rules, tax treaties, withholding, and reporting obligations.
Trust Income Tax Planning
Trusts offer a safe way to pass wealth to family members while also providing potential tax benefits. The level of control that the grantor (the creator of the trust) retains over the trust determines how it is taxed.
A trust is treated as a grantor trust to the extent the grantor or another person is treated as the owner under IRC §§671–679. Grantor-trust status can apply to both revocable and irrevocable trusts. Items attributable to the grantor-owned portion generally are reported by the deemed owner rather than taxed to the trust as a separate taxpayer. For non-grantor trusts, where the terms of the trust instrument do not cause the trust to be treated as a grantor trust under IRC §§ 671-679, the trust is treated as a separate taxpayer.
Non-grantor irrevocable trusts also have narrower income tax brackets than individuals do. This means that any retained income by the trust is taxed at the highest rate sooner than it is for an individual taxpayer (the grantor).
Another important tax consideration is Distributable Net Income (DNI). DNI is a tax-accounting concept that generally limits both the estate’s or trust’s distribution deduction and the amount of taxable income that can be carried out to beneficiaries. Distribution planning can therefore affect whether income is taxed at the trust level or beneficiary level, subject to the trust instrument, fiduciary duties, character rules, and applicable state law.
Capital gains require separate analysis because they are generally taxed to the trust and generally excluded from DNI unless applicable rules permit them to enter DNI. A trust may also qualify for a charitable deduction under specialized rules, but the deduction depends on the governing instrument, source of the payment, recipient, and other statutory requirements.
While trusts are effective vehicles for transferring wealth, they also come with a number of legal, administrative, and compliance requirements. A family office can help ensure the trust is administered properly, align the overall tax strategy with your estate planning goals, and handle all tax reporting and optimization.
Estate & Gift Tax Planning for HNW Families
Inheritances are often what people think of when they hear “generational wealth transfer.” However, gifting during one’s lifetime is an increasingly popular, proactive solution that can offer significant tax benefits.
For 2026, the federal basic exclusion amount is $15 million per individual, while the annual gift-tax exclusion is $19,000 per donee for qualifying present-interest gifts. A married couple may potentially shelter up to $30 million of cumulative taxable transfers if each spouse has a full unused basic exclusion amount, and each spouse generally has a separate $19,000 annual exclusion per donee. Gifts exceeding the annual exclusion may require a Form 709 even if no current gift tax is due because the donor applies available lifetime exclusion. At the state level, Connecticut is currently the only state that imposes a gift tax. However, because federal and state limits and rules may change with new legislation, your family office team should review these requirements regularly.
When choosing the appropriate asset(s) to gift, the ideal asset is one that is likely to increase in value after transferring. This shifts future growth out of the taxable estate, which means that more wealth is transferred to the family, and less is lost to taxes at the end of the grantor’s life.
Ultimately, gift and estate tax planning for high-net-worth individuals requires a comprehensive plan that includes tax-efficient strategies, legal protections, and clear communication with family members about the family’s legacy goals. As part of creating this plan, conducting an estate liquidity analysis, which evaluates how easily an estate’s assets can be converted into cash, can help ensure any debt is managed effectively and that there is enough cash flow to cover day-to-day needs.
Investment & Portfolio Tax Strategies
Tax-aware investing is an investment approach that focuses on your after-tax return as the true benchmark versus pre-tax growth. Strategies for helping minimize the amount you lose to taxes each year can include:
- Direct indexing and separately managed accounts for harvesting flexibility: Allows you to sell losing individual stocks to offset capital gains, effectively lowering your taxes.
- Managing short- vs. long-term capital gains and holding periods: How long an investment is held determines how it is taxed. Short-term gains (held one year or less) are taxed at your regular tax bracket rate, whereas long-term gains (held over a year) are taxed at lower rates.
- Municipal bonds and other tax-advantaged income sources (where suitable): Municipal bonds may generate interest that is generally exempt from federal income tax, subject to applicable exceptions and state-law treatment. Roth accounts can provide tax-free qualified distributions if statutory requirements are satisfied.
The ultimate goal of tax-aware investing is to build toward “tax independence” in the portfolio over time by reducing unnecessary tax friction as much as possible.
Managing a Concentrated Stock Position
UHNW families may find themselves holding a concentrated stock position, where a single stock represents more than 10% to 20% of their portfolio value. This can occur because of:
- Founders’ stock
- Incentive compensation paid to company executives and key employees
- Public company shares received in a merger or acquisition
- Gifts and inheritances
- Distributions of stock from successful venture and private equity investments
- Price appreciation over time (ex: stocks, ETFs)
Although this stock position may have created substantial wealth, it also introduces added risk to the holder’s portfolio, making their wealth vulnerable to a single-stock event. Selling a portion of the stock to diversify the portfolio and thereby reduce concentration can help reduce risk, but this must be weighed against the capital gains cost of doing so.
Tax-aware ways to reduce a concentrated position can include staged selling, exchange funds, gifting appreciated shares, and direct indexing. Hedging, where you take an opposite position in a related asset, can also help reduce the risk of loss in an existing position. However, hedging requires additional costs to invest in another position, and you may lose out on the appreciation of the underlying position without actually reducing your exposure.
To effectively reduce capital gains and lower your taxable estate, diversification strategies should never be implemented in a vacuum, but instead, coordinated with the family’s gifting and estate calendar.
Charitable Giving & Philanthropic Tax Planning
Integrating charitable giving and philanthropy into your tax planning strategy can help you achieve tax efficiency while giving in ways that reflect the unique values of your family.
Charitable vehicles can create income, capital-gain, gift, or estate-tax benefits, but the result depends on the vehicle and asset.
- A contribution to a donor-advised fund generally may qualify for a charitable deduction when statutory requirements are satisfied.
- A contribution to a charitable remainder trust generally produces a partial deduction based on the present value of the charitable remainder interest.
- Contributions to private foundations are subject to lower percentage limitations and special valuation rules; for example, appreciated property contributed to a private nonoperating foundation may produce a basis-limited deduction unless an exception, such as the rule for qualified appreciated stock, applies.
- A direct contribution of qualifying long-term appreciated securities to an appropriate charitable recipient may allow the donor to avoid recognizing the embedded gain on the contribution while potentially receiving a fair market value-based charitable deduction, subject to the recipient, property type, holding period, AGI limitations, substantiation rules, and other §170 requirements.
Giving is a powerful way to shape your legacy, and with proper planning, can also reduce your tax liability. A family office will work with you to align your philanthropic financial planning with both your family values and your long-term tax strategy.
Business & Liquidity-Event Tax Planning
If you’re anticipating an IPO, sale, or exit, pre-liquidity structuring and planning should occur well before the event. Given that many key considerations are time-sensitive, the earlier the planning process begins, the more opportunities there will be to optimize tax strategies.
For instance, if your company’s stock qualifies as Qualified Small Business Stock (QSBS) and you as the shareholder meet applicable requirements, QSBS rules may allow exclusion of some or all eligible gain, subject to limitations and technical rules. For qualifying stock acquired after July 4, 2025, amended §1202 provides a 50% exclusion after a three-year holding period, 75% after four years, and 100% after five years or more. The legislation also increased the qualified-small-business gross-asset ceiling to $75 million for stock issued after July 4, 2025, and increased the statutory dollar limitation applicable to eligible gain. Because the exclusion also depends on original issuance, issuer activities, aggregate gross assets, holding period, redemptions, and taxpayer-specific limitations, QSBS eligibility should be analyzed well before a sale.
In the case of a merger and acquisition or restructuring, asset versus equity modeling is an important tool. These projections compare an asset purchase against a stock purchase to forecast tax impact, liability, and more. Pre-IPO, equity modeling is also used to track ownership, dilution, and valuation. In both cases, modeling allows you to plan ahead in order to minimize the tax impact of a liquidity event. Estate, charitable, and investment planning should also be integrated with tax planning prior to the event.
When to Act: A Year-Round Tax Planning Calendar
Many people think of taxes as a once-a-year event, never realizing that this misses most of the opportunity. In reality, ultra-high-net worth tax strategies require year-round planning:
- Q1: Early projections and elections
- Q2/Q3: Mid-year gain review
- Q4: Execution
Deadlines also vary throughout the year. Some actions must be taken by December 31, whereas other items can remain open until your tax return due date, which is usually April 15, unless an extension has been filed. In addition, legislative changes, such as retroactive or immediately effective dates, sunsetting of deductions, or lag in guidance on new rules can compress decision windows. As a result, it’s important to coordinate your tax calendar with your CPA, attorney, and investment team to make sure everyone is on the same page.
Family Office Tax Services: What to Look For
Ultra-high-net worth tax planning intersects with almost all aspects of wealth management, including investing, trusts and charitable giving, estate planning, business structuring, and more. Family offices are uniquely suited to provide tax-planning services given their comprehensive, holistic approach to wealth management.
If you’re interested in working with a family office for tax planning purposes, here are a couple of things to look for:
- Compliance with legal, tax, and regulatory rules across multiple entities, such as trusts, LLCs, and foundations
- Ability to consolidate and report financial data across different banks, investments, and accounts
- A consistent, proactive planning cadence rather than once-a-year contact
- Close coordination with your family’s legal, investment, and accounting advisors
To explore whether family office tax services are right for you, request an introduction with one of our founders today. Together, we can explore how our tailored approach can meet your family’s specific needs and maximize your after-tax wealth.