Frequently asked questions

Answers about what Tau Balance offers and common retirement investing concepts. Some answers include a simple example when it helps clarify the idea.

What we offer

How Tau Balance works and what you get from a scenario.

What does an optimizer do?

In plain terms: an optimizer searches for the best plan under rules you care about, instead of following a single rule of thumb. For retirement and tax-aware planning, that usually means looking across years and across accounts (taxable, tax-deferred, and Roth-style) and proposing where holdings should sit, where new savings should go, and where money should come from when you spend. It has to respect real limits at the same time: contribution caps, account eligibility, tax treatment, your chosen goal (paycheck, wealth, taxes, or legacy), and the mix of investments you already want to keep. Think of it as putting those constraints on a scale and finding a balance that fits the whole picture: not optimizing one shelf while ignoring the rest. The output is a optimized plan of moves over time under those assumptions; it is still a recommendation to discuss with a professional, not a guarantee.

Many constraints at once: the optimizer looks for a balance across the whole plan.
What is asset location, and how does the optimizer use it?

Asset location is which account holds each part of your mix. A common rule of thumb fills retirement accounts first and worries about what’s inside later; an optimizer can match each holding to a better-fit account even when contributions arrive in the same order. Asset location is one important piece of what the optimizer does (alongside contribution and withdrawal sequencing, multi-year moves, and optimizing toward your chosen objective), not the whole engine.

Same accounts, same contribution limits, same six holdings in the same order: only the placement logic differs. Example illustration; not a personal recommendation.

Tap an account to see the fit idea behind the animation:

Usually no contribution limit and holds anything: often a home for tax-efficient index holdings when limited retirement room is better used elsewhere.

Independent research

What is Tax efficiency preference?

Tax efficiency preference controls how freely the optimizer can place assets across accounts for tax efficiency while keeping your overall portfolio mix the same. At Target allocation only, every account stays locked to the mix. At Maximum tax efficiency, individual accounts may look very different (for example bonds concentrated in brokerage and equities in retirement accounts) as long as the Total Portfolio still hits the target mix (here, a 60/40 example). The other preferences sit between those poles. The green band marks the portfolio mix; bar colors match equities and fixed income elsewhere in the product.

Target allocation only

Brokerage
401(k)
IRA
Roth
Portfolio mix (60/40) Equities Fixed income

Maximum tax efficiency

Brokerage
401(k)
IRA
Roth
Portfolio mix (60/40) Equities Fixed income

Other preferences sit between these poles. Accounts may tilt for taxes while the total portfolio still hits the target mix (60/40 example).

Do you pick my investments or sell me funds?

No. Your asset mix and investment choices stay yours. We don’t second-guess your strategy, replace your portfolio, or sell you products. The focus is placement and sequencing of moves across the accounts you already use.

What do I actually get from a scenario?

A full results workspace for the objective you chose: typically including an Overview of headline outcomes, a concrete Action plan of optimized moves, Tax analysis versus a baseline, Historical backtests, Cash flow views of how money moves through the portfolio, and Multi-run Compare so you can weigh scenarios side by side. Same idea throughout: your mix stays yours; the plan shows where money sits and how moves can unfold over time.

What are the four planning objectives?

Each scenario optimizes toward one primary goal: Retirement Paycheck (sustainable spending), Build After-Tax Wealth (maximize spendable wealth), Minimize Taxes (reduce lifetime tax drag), or Legacy (maximize what you leave after taxes). Run different objectives to compare tradeoffs.

Does asset location really change what I leave behind?

For the Legacy objective specifically: yes. Smart placement doesn’t just shave a little off your tax bill each year; over a full retirement it can meaningfully change the size of what your beneficiaries actually receive, without asking you to spend less along the way.

Independent research

  • +$112,000 bequest On a $1 million portfolio at retirement, smart asset location increased the final bequest by an average of $112,000: without reducing annual retirement spending. Morningstar Retirement Research
Are you using AI for this?

The scenario results themselves are produced the proven, old-fashioned way: with math. An optimizer solves placement, sequencing, and tradeoffs under your assumptions and constraints. We do take advantage of large language models (LLMs) for what they do best: helping summarize, interpret, and extract insights from those results so the numbers are easier to read. The plan is calculated; the commentary is assistive.

Claude and ChatGPT already do this for me

They are genuinely helpful for educating consumers: explaining concepts, walking through examples, and helping you think about planning in plain language. That is valuable. What they typically do not do is run your full household picture as a multi-year optimization: projecting contributions and withdrawals across time toward a stated goal, while balancing contribution limits, account rules, tax treatment, and the other constraints an optimizer is built to respect. A chat answer is a great starting point. Like our scenario output, it is a recommendation for learning and discussion (not a substitute for a qualified professional’s second opinion. And if you are choosing among recommendations, would you rather they be grounded in math under explicit constraints) or inferred from a conversation?

Is this investment, tax, or legal advice?

No. Scenarios are hypothetical models for learning and exploration. Results depend on the assumptions you provide and can differ from real outcomes. Consult a qualified professional before making financial decisions.

Who is this for?

People planning toward or through retirement who hold (or expect to hold) money in more than one account type and want to see how tax-aware placement and withdrawal sequencing can change outcomes: without changing which investments they chose. These strategies work best as long-term planning tools: tax savings from better location and sequencing are often modest in a single year, but they compound when the same logic repeats over many contribution and withdrawal years. Short horizons leave less time for that compounding (and less room for a multi-year plan of moves) to matter.

Compare planning horizons:

The same yearly placement and sequencing logic can repeat across decades of saving and spending. Modest annual tax differences have room to compound: which is why these optimizations are built for long-term planning.

Independent research

  • ≈10% more savings For higher-tax-bracket investors, a tax-aware strategic asset allocation with asset location can translate to roughly a 10% increase in retirement savings over 20 years versus a tax-agnostic approach: the same long-horizon compounding described above. Goldman Sachs Asset Management, "Unlocking Tax Efficiency" (2026)
Is there independent research behind this, or is it just your claim?

Good question: you shouldn’t take our word for it. Several independent studies from asset managers and academic finance journals have measured the value of tax-aware placement, sequencing, and planning, separately from any one company’s product.

Independent research

  • 0–60 bps/yr location, up to 100 bps/yr sequencing Asset location alone can add 0–60 basis points a year; a tax-efficient withdrawal strategy can add up to 100 basis points a year or more: part of a broader ~3%/yr in total value from combined tax-aware advisory behaviors. Vanguard, "Putting a Value on Your Value: Quantifying Vanguard Advisor's Alpha"
  • 10–30 bps/yr (avg. 20 bps) A disciplined asset-location approach outperformed a simple pro-rata split across accounts by 10–30 basis points a year on average: up to 35 bps/yr for investors holding both Roth and taxable accounts. Daryanani, Financial Planning Association Journal

Retirement investing concepts

General ideas behind tax-aware planning, allocation, and withdrawals.

What are Today’s dollars vs. Future dollars vs. “at horizon”?

Today’s dollars answer: if money arrives later, what is it worth in today’s purchasing power? Inflation and waiting usually make future amounts “feel” smaller today, so a headline like “$1M at age 85” might read closer to ~$740k in today’s dollars under a simple illustrative inflation assumption. In scenario results, the Show dollars control is a viewing lens, not a new plan: Today’s dollars shows purchasing-power columns; Future dollars shows face-value amounts as projected; At retirement / At horizon pin that same future-dollar math to a life milestone (paycheck start age or planning-horizon end age). Lifetime scoreboard lines in today’s dollars also discount a stream of future amounts into today’s terms so years can be compared fairly.

Same underlying plan: four ways to read the dollars. Illustrative amounts only; the Show dollars control does not change recommendations.

Tap a frame to see how the same illustrative pile can look:

$740k

Purchasing power now

What that future pile feels like in today’s prices. Useful when you want “how much coffee / house / lifestyle does this buy relative to right now?”

What is risk preference, or my investment mix?

Risk preference is your target mix: how much of the portfolio sits in equities versus fixed income (and optional alternatives). Conservative tilts toward bonds; aggressive tilts toward stocks. A higher equity share usually means more growth potential and wider year-to-year swings: not a forecast, just the usual pattern. The chart below is illustrative. Under it, average annual total returns from our backtest history (plus worst/best single-year returns in the window) show how equities, Treasuries, Munis, and investment-grade bonds have behaved: use the years-back slider to change the window.

Illustrative mix spectrum: equities vs fixed income. Not a personal recommendation.
What is asset allocation vs. asset location?

Asset allocation is your mix: how much in equities, bonds, cash, and so on. Asset location is which account holds each piece of that mix. Two households with the same mix can end up with very different after-tax results if placement differs.

Why does account type matter for taxes?

Taxable brokerage, traditional 401(k)/IRA, and Roth accounts tax growth, income, and withdrawals differently. The same fund can leave more (or less) in your pocket depending on which “bucket” it sits in, and when you contribute or withdraw.

What are taxable, tax-deferred, and tax-free accounts?

Taxable accounts (e.g. brokerage) typically tax dividends, interest, and realized gains along the way. Tax-deferred accounts (traditional 401(k)/IRA) usually defer tax until withdrawal. Tax-free / Roth-style accounts are funded with after-tax dollars and generally allow qualified withdrawals tax-free. Each plays a different role in a long-term plan.

Explore the three buckets:

Flexible access; investment income and realized gains may be taxed along the way.

What is tax drag?

Tax drag is the reduction in compounding from taxes paid along the way, for example on dividends or realized gains in a taxable account. Lowering unnecessary drag doesn’t change market returns; it changes how much of those returns you keep invested.

Why does the order of contributions and withdrawals matter?

Where each new dollar goes, and which account you draw from first in retirement, changes taxes year by year. Small sequencing differences can compound over decades: similar to playing the same cards in a different order.

Independent research

  • ≈22.6% more retirement income A widely cited retirement-income study found that combining a dynamic (rather than fixed) withdrawal strategy with tax-aware asset location and sourcing could increase a retiree’s sustainable income by roughly 22.6% versus a naive approach: with the withdrawal strategy itself the single largest contributor. Blanchett & Kaplan, "Alpha, Beta, and Now… Gamma," Morningstar (2013)
What is a “retirement paycheck” in planning terms?

It usually means a sustainable annual (or monthly) spending level you can support from savings and other income over a planning horizon, under stated assumptions. Plans often compare how long that paycheck lasts under different placement and withdrawal strategies.

Are simple rules like “bonds in IRAs, stocks in taxable” enough?

Rules of thumb can be a starting point, but they ignore your full picture: multiple account types, contribution room, withdrawal timing, and your goal (paycheck vs. wealth vs. legacy). Holistic planning looks at the whole household over time, not one shelf at a time.

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