In December TIAA said it plainly: “Nearly half of Americans are under-saved for retirement,” and announced that it is reimagining how advice is delivered — AI-powered tools, guaranteed income across every life stage, a campaign going national in 2026. For the educators, nurses, researchers and public servants TIAA serves, the first question is not what the market might add. It is the floor: the safe, sustainable living standard a household can hold for life, with no investment risk taken, computed under the taxes and benefits the law actually imposes. Nothing in the advice stack computes that. MaxiFi does: the only commercial engine built on the economics of lifetime planning, faithful to the science and to the law, and warrantable because it is.
On December 10, 2025 TIAA Wealth Management unveiled its “Invest in Your Worth” campaign and rebrand: AI-powered tools and a unified operating platform, offerings extended from education savings to guaranteed income across every life stage, digital service paired with advisor support, and a growing advisory workforce, with a nationwide release in 2026. David Nason, CEO of TIAA Wealth Management and Advice Solutions: “Nearly half of Americans are under-saved for retirement,” and TIAA is “reimagining how advice is delivered.” TIAA has paid more than $5.9 billion in lifetime income to retirees and managed $1.5 trillion as of September 30, 2025.
The pattern is consistent. TIAA acquired MyVest, a planning-technology company, in 2016. In February 2026 TIAA Ventures joined the $80 million Series B of Jump, an AI operating system for advisors that surfaces next-best actions. The relationship, the delivery and the recommendation layer are built and funded. What none of them does is compute, for each participant’s household, the safe, sustainable living standard under current law, and show the arithmetic.
Advice reimagined, for people who have built wealth and are unsure how to manage it through retirement and for heirs. The promise is population-level. The participant’s question is household-level: how much can my household safely spend, every year, for life; when should income start; what does TIAA Traditional, Social Security timing and a Roth sequence do to that number in my state? An AI tool that recommends without computing cannot answer it. This is the layer that does.
Conventional planning gets the first thing wrong: it never asks whether a household needs to take risk at all. It sets a spending target, usually too high, and adds equity to raise the probability of hitting it. The economics of lifetime planning begins with the safe, sustainable living standard: the most a household can spend, every year, for life, with no investment risk taken, computed jointly across its whole life under the taxes and benefits the law actually imposes, and then treats risk as an option, evaluated against the household’s own aversion to loss.
Laurence Kotlikoff’s illustrative case shows what the premise is worth to a cautious household: a hypothetical 62-year-old retiree with $2 million and Social Security.
| Strategy | Sustainable discretionary spending | Versus the safe base, in the household’s own terms |
|---|---|---|
| Safety-first (TIPS-only base) | $83,451 / yr to age 100 | The base case: no investment risk at all. |
| 80/20 stocks and bonds | Far higher expected, much greater dispersion | 22% worse if the household is highly risk-averse; 22% better if it is risk-tolerant. |
| 20/80 stocks and bonds | Modestly higher expected | 9% worse if the household is highly risk-averse; 6% better if it is risk-tolerant. |
| Claim Social Security at 70 and time Roth conversions | + $8,608 / yr | Risk-free. Computed, not guessed — the part of the answer no model produces. |
Figures are Professor Kotlikoff’s, as of September 2026, for his illustrative household’s facts and assumptions; they are not generalized. The plan depends on the person, and conventional planning never asks.
TIAA’s participant is cautious by vocation and by contract; the institution exists because that person chose a pension-like promise over the market, and TIAA Traditional is the floor made into a product. The safe, sustainable living standard for each household is a computed quantity — the floor, the income start, the annuitization that raises it or does not — and an engine that begins from safety is the only kind that can compute it. A lifetime income election is irreversible; computed wrongly, it is a claim, not an approximation.
MaxiFi is not an application TIAA would operate. It is a computation service the advisor’s desktop, the AI tools and the income recommendation all call. From the facts an advisor already gathers, it produces for each household the safe base, the income start that fits that household’s Social Security and Roth sequence, the protection the survivor actually needs, the annuitization that raises or does not raise the household’s living standard, and the risk the household may choose to take on top. The advisor’s relationship does not change. The provenance of the number in it does.
A rented planner cannot be warranted, because its spending target comes from outside the model and there is no correct answer to warrant. An owned engine that is faithful to the economics and computes under current law can be. That difference is the claim no other retirement provider can make — and the engine, incorporated under the AI tools you have already announced, is what makes AI-assisted advice defensible rather than merely efficient.
The life-cycle economics of saving, spending and risk has been taught in graduate finance for seventy years. MaxiFi is the only commercial engine built on it, and it is faithful to the science in two layers. The economics: safety-first, spending endogenous, the lifetime solved jointly, risk evaluated as an option against the household’s own risk aversion. The law: federal and forty-two state tax codes, Social Security, Medicare and IRMAA, required minimum distributions, Roth conversions, pensions, annuities and survivor benefits, encoded and maintained for thirty years, deterministic in the sense that matters — the same facts produce the same auditable answer. The problem is well-defined, so the answer can be checked by inspection, line by line, in the reports.
When a technology team says “we could build this,” the answer is not the algorithm. Dynamic programming is taught. The answer is the classes of failure in which a rebuild silently ships a wrong number:
Patent-winning. Named among Bankrate’s best financial planning software of 2025. Used by Robert Merton to teach financial planning at MIT Sloan. Built over thirty years by Boston University economist Laurence Kotlikoff, who intends to stay with the acquirer as architect and spokesperson.
For a household’s facts and assumptions, the plan MaxiFi produces is the plan the economics prescribes, computed under current law. Because the result is verifiable by inspection, a computational error is objectively decidable: rerun the engine and check. That is why a bounded accuracy guarantee with a stated exclusive remedy is insurable for an engine that owns its computation, and is not offerable by a planner whose target is set outside the model. Market returns, longevity, future law and the household’s own assumptions are never guaranteed. The guarantee covers the arithmetic and the fidelity, not the life.
It converts “advice reimagined” from a campaign promise into a claim TIAA can make to every participant and every plan sponsor, stand behind with a defined remedy, and deny to every other provider. For an institution whose product is the promise of lifetime income, it is the arithmetic beneath the promise. We are not selling an insurance policy. The insurance is included.
Independent tests in 2026 established that the market cannot check its own arithmetic. Larry Kotlikoff’s Economics Matters Substack has run named head-to-heads against frontier engines on dollar-specific household problems; the variance across engines on identical prompts is the proof that correctness cannot come from the model layer — and the labs now say so themselves.
How will you validate that any AI is correct? You will need to run MaxiFi to know. Correct means faithful to the economics; the instrument that can certify the AI is the faithful implementation of the science, computed under current law, today and after any attempted replication.
TIAA’s trajectory is advice at scale for the under-saved half, carried by an advisory workforce, AI-powered tools and a lifetime-income suite that are already built and already funded. MaxiFi is not an addition to that trajectory. It is what completes it: MaxiFi exists to raise, sustain and protect households’ living standards, not anyone’s assets under management. The institution that secures it holds a unique and durable competitive advantage: an economic moat against AI, and a legal moat against claims of improper advice.
Every household’s safe, sustainable living standard, income start, Social Security timing and Roth sequence computed under current law and explained as arithmetic. The advice the campaign promises becomes a number every advisor, and every digital tool, can deliver and stand behind.
The one provider whose advice is faithful to the economics and warranted with a defined remedy wins the participant, the plan sponsor and the regulator on a dimension no benchmark peer can enter. The claim persuades; the guarantee closes.
A computed lifetime plan identifies when and how much of a household’s wealth to annuitize to raise its living standard, and when not to. That is the case for TIAA Traditional made in the household’s own terms, by the household’s own numbers, through the workforce TIAA is growing.
An institution remains responsible for the outputs of the models it deploys, including a vendor’s. The provider whose advice is faithful to the science has the defense; the provider whose tool is not has the exposure. The defense comes with the deal. The deal is the growth.
The AI tools run the advisor’s day; the income suite delivers the promise; neither decides the household’s number, and the household’s number is what the under-saved half is asking for. A rented planner cannot be warranted. An owned engine can, and there is exactly one MaxiFi. TIAA bought MyVest in 2016 for the same reason.
MaxiFi is offered for acquisition: the engine, its intellectual property, thirty years of encoded law, and Larry Kotlikoff’s continued involvement as architect and spokesperson. The next step is a 30-minute orientation: the safe base case for a real, anonymized household first, then the risk question, then a frontier model asked to match the result. Nothing is deployed and nothing is left behind; evidence deepens with commitment, and the full case is provable in an acquirer’s first quarter of ownership. First conversations with strategics are underway; we expect to narrow the field in early December.
Or write directly: Commerce@kaneco.com · subject “MaxiFi — TIAA orientation.”
Thirty minutes: the safe base case for a real, anonymized household first, then the risk question, then a frontier model asked to match the result. Choose a window and book it directly; or email with another time.
Commerce@kaneco.com