Family Office vs MaxiFi

We make Family Office. Every fact about another app here comes from its own public pages, linked below and dated; where those pages do not say, the cell is blank. Family Office's column comes from its own code.

Who MaxiFi suits

MaxiFi Planner is for people in the US: it works out the living standard you can sustain, with federal and state tax, Social Security and a Roth Conversion Optimizer.

Side by side

Feature	Family Office (ours)	MaxiFi
US tax	Federal and state income tax (51 regimes, one per state and DC), capital gains and dividends with the net investment income tax, 85 percent of Social Security taxed (the statutory maximum) and IRMAA on Medicare premiums, year by year in the plan, and federal estate tax on the estate it leaves	Federal and state income tax, tax on Social Security, IRMAA, capital gains on a home sale, self-employment tax and required minimum distributions; a Roth Conversion Optimizer on MaxiFi Premium and MaxiFiPRO only
Other countries	122 tax regimes in 34 countries; a move from one to another in the plan on Premium and up
Monte Carlo	The chance of success on every plan, the Free plan included; the paths and the fan chart on Gold and Platinum	Living Standard Monte Carlo on MaxiFi Unlocked
Companies and trusts	On Platinum: any number of companies, sole traders, partnerships or trusts, beside the household
Property	Homes and rentals with their mortgages, purchases and sales: 1 on Free, 3 on Premium, no limit on Gold and Platinum	Homes, with the capital gains on a sale
Pensions	401(k), Roth 401(k), IRA, Roth IRA, 529 and Social Security; other pension income as an annuity	Pensions, Social Security, 401(k) and SIMPLE IRA, Roth accounts, 529 plans and annuities
Bank links	Through Plaid (United States): 2 on Premium, 10 on Gold and Platinum
Free plan	Yes, with no card and no time limit: up to 8 items, one taxpayer and a projection of 5 periods. The paid plans start with 14 days free, card needed. The calculators are free, with no account.	None; a 14-day trial, card needed
Price	$15 to $59 a month (£12 to £49, CA$20 to CA$79); a year costs the price of 10 months	MaxiFi Unlocked $149 a year
Where data is kept	Amazon Web Services in London (eu-west-2); bank links (Plaid), payments (Stripe) and maps (Google) through US providers; e-mail through Google Workspace; see the privacy policy for the full list	Amazon Web Services; the region is not stated
Export	The whole plan as a file you can import again, on every plan; the report printed to PDF on the paid plans; budget transactions as CSV	PDF and Excel on Unlocked

A blank cell: MaxiFi's public pages did not say.

When MaxiFi is the better choice

You want the plan built around the living standard you can sustain each year, rather than a target you set.
You want Roth conversions and Social Security claiming optimised for you (the Roth optimiser is on MaxiFi Premium and MaxiFiPRO only).
You want a lower yearly price: MaxiFi Unlocked is $149 a year.

When Family Office is the better choice

Your life spans more than one country: 122 tax regimes in 34 countries, and a move from one to another in the plan (Premium and up).
You own a company, a partnership or a trust: Platinum keeps any number of them beside the household.
Your banks are in a country where Family Office links accounts through Plaid (Canada and United States), and you want their balances brought in (Premium and up).

Sources

Facts about other apps checked on 2026-11-10. Prices and features change: each app's own page is the reference.

Other comparisons

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