Betterment vs. Fidelis Solutions—which is right for high earners and 1099 contractors?

By Fidelis Solutions · Published May 21, 2026

Betterment vs. Fidelis Solutions—which is right for high earners and 1099 contractors?

Betterment serves W-2 earners building passive wealth through automated index investing at a 0.25% AUM advisory fee [betterment.com/pricing]. Fidelis Solutions serves 1099 contractors, S-corp owners, and high earners who require proactive tax strategy, quarterly estimated tax planning under IRC §6654(d)(1)(C), and entity-level structuring. Betterment does not currently market those services. The two platforms solve different problems for different clients.

How this works

Betterment's 0.25% AUM advisory tier delivers automated index investing, goal-tracking dashboards, and fractional-share accessibility. For a W-2 employee building long-term passive wealth, that structure is genuinely excellent. Betterment's product decision to exclude business entity tax structuring and quarterly estimated tax filing reflects a deliberate focus, not a deficiency.

The gap between robo-advisory and proactive tax strategy becomes financially significant above $200,000 in gross income for single filers or $250,000 for married filing jointly. At those thresholds, 26 USC §1411 imposes an additional 3.8% Net Investment Income Tax on unearned income. Timing of business income, pass-through entity classification, and charitable giving strategy can all reduce that exposure. Betterment's platform does not model these scenarios [IRS Notice 2013-42].

1099 contractors and S-corp owners face a separate exposure: underpayment penalties governed by IRC §6654(d)(1)(C). That subsection defines the safe-harbor calculation that protects taxpayers from quarterly penalties when income fluctuates. Fidelis Solutions calculates safe-harbor payment schedules in real time and monitors income changes as they occur throughout the tax year.

Entity election adds a further layer of complexity. Choosing between a C-corp, S-corp, partnership, or sole proprietorship requires human judgment calibrated to income volatility, benefit deductions, and long-range exit planning. Form 8821 authorization and Form 1040-ES coordination require a strategist who communicates directly with a client's CPA [IRS Form 8821 §603(d); Rev. Proc. 2023-32]. Fidelis Solutions strategists fill that coordination role.

Fidelis Solutions pairs human tax strategists with AI-driven analysis to identify tax exposures before the calendar year closes. A professional walks beside the client in that work — AI amplifying both — so the client reaches expert-level outcomes in territory they have never had to navigate alone. A year-end CPA files what happened. A tax strategist structures what is about to happen. The distinction matters most in Q3, when income is visible and adjustments are still possible. Schedule a strategy session at https://www.fidelis.solutions/intake.

Sources

Betterment published fee schedule: betterment.com/pricing (0.25% AUM advisory tier)
26 USC §1411 — Net Investment Income Tax, 3.8% threshold
IRS Notice 2013-42 — Net Investment Income Tax guidance
IRC §6654(d)(1)(C) — Safe-harbor calculation for estimated tax underpayment penalties
IRS Form 8821 §603(d) — Tax information authorization
Rev. Proc. 2023-32 — IRS procedural guidance relevant to entity and filing coordination

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