Married couple with 1–2 young children, recently purchased first home, juggling mortgage, childcare costs, and retirement savings.
A-01 is the early-accumulation household where childcare, mortgage, and a 529 plan all became real in the same 24-month window — and where every cash-flow planning tool that assumes only two of those three is wrong.
A-01 represents the structurally most-constrained household in the early-accumulation cohort. The defining technical surface is the simultaneous presence of three competing claims on cash flow: a recently originated mortgage (every one of the 30 corpus households carries one), childcare costs for 1–2 young children (23 of 30 households carry dependents), and the first non-trivial 529 plan contribution (education-funding goals appear in 23 of 30 records). Each of these has its own tax wrapper — the §163(h) qualified-residence-interest deduction with SALT-cap interaction, the §21 Child and Dependent Care Credit and §129 dependent-care FSA up to $5,000, and the state-by-state 529 contribution deduction with state-of-residence-vs-plan-of-residence sourcing rules. Together they create the canonical 'cash-flow tight despite mass-affluent income' planning scenario that breaks any planner UX assuming linear savings-rate optimisation.
The income profile is mass-affluent ($85k–$205k combined gross, median $135,847) and almost universally dual-W-2 (29 of 30 file MFJ). Net worth median of $373,393 is dominated by home equity rather than retirement balances; liquid net worth of $123,891 is structurally inadequate for the typical 6-month childcare-included emergency-fund target. The corpus shows 30 of 30 households carrying both credit cards and mortgages — credit-card balances frequently serve as childcare-shock financing — and 15 of 30 still carry student loans alongside the mortgage.
A-01 is distinct from neighbouring archetypes because of the multi-claim cash-flow squeeze rather than any single feature. A-03 (Dual-Income Professional Couple) has the same household structure but materially higher income that absorbs the same costs without cash-flow stress. F-03 (DINK) has dual income without the childcare or mortgage costs. P-05 (Pre-Retirement Catch-Up) shares the late-savings concern but the children have left. A-01 is the cell where all three constraints land in the same household at the same time.
Aggregated across the 30 A-01 households in the shipped v3 corpus corpus. Numbers describe the corpus, not population claims.
Michael and Emily are an unusually balance-sheet-strong A-01 household for the income level — $908k net worth against $138k combined gross is well above the corpus median and largely reflects Tucson-priced home equity plus a healthy liquid position. The diagnostic feature is the goal mix: on track for both home purchase (a likely move-up purchase rather than first-time) and retirement, but behind on the $739k education-funding target. This is the A-01 pattern that breaks naive 'fund the 529 first' advice — the household is doing everything right except keeping pace with a high-aspirational education-funding number, and the planner UX needs to surface the prioritisation tradeoff rather than mark them as failing.
Every A-01 household ships with — at minimum — these JSON fields populated. The full schema is documented in the data set you purchase.
Three buyer profiles draw on A-01 most heavily. Mortgage-servicing and home-equity-lending platforms (mortgage-origination platforms, regional banks and credit unions, plus HELOC products from specialty consumer lenders) use the corpus for newly-amortizing-loan UX, escrow analysis, and the home-equity-as-childcare-shock-absorber scenario. Life-insurance issuers and need-analysis platforms (digital term-life issuers, plus the broker-affiliated need-analysis tools from large mutual insurers) use A-01 for the canonical 'first material term-life need' calculation that combines income replacement, mortgage payoff, and education funding into a single coverage amount. 529-plan administrators and state-treasurer-partnered platforms use A-01 for the state-of-residence vs state-of-plan deduction sourcing, the SECURE 2.0 Roth-rollover handling, and the contribution-rate UX where the household has competing claims on every marginal dollar.
A-01 is dual-income with kids by construction. Single-parent households at the same life stage live in A-02 (Single Parent) with head-of-household filing and a materially different EITC/CTC surface. Households at the same family structure but materially higher income ($300k+ combined) where the same childcare/mortgage/529 stack is paid out of cash flow without strain are A-03 (Dual-Income Professional Couple). Pre-children dual-income couples with the down payment in progress but no mortgage yet are F-03. Blended-family scenarios with stepchildren, split-custody dependency-claim ambiguity, and child-support flows belong in BL-01 (Blended Family / Step-Children). Finally, A-01 households are mass-affluent; if the household has joined a tech employer with material equity comp, A-06 layered with family attributes is the better fit.
Income and homeownership-rate distributions during v3 synthesis referenced Survey of Consumer Finances (SCF) tabulations for married-with-children households in the 30–40 age band, with mortgage-balance distributions informed by HMDA origination data for first-time owner-occupied purchases in 2018–2023. Childcare cost ranges referenced Child Care Aware of America state-by-state cost-of-care tables. Geographic concentration in CA, IL, and AZ reflects the empirical distribution of dual-earner young-family-with-home households at this income tier rather than a uniform-state assumption. Per CLAUDE.md §9 the v3 corpus is frozen; these notes describe priors applied at synthesis rather than a reproducible regeneration path.
A-03 has the same dual-W-2-with-kids structure at materially higher income ($200k–$350k+). The cash-flow squeeze characteristic of A-01 disappears; the testing surface shifts to backdoor Roth, mega-backdoor Roth, and taxable-brokerage construction.
A-02 is the single-parent version at lower income with head-of-household filing, EITC eligibility, and a structurally different childcare-affordability calculation. A-01 is dual-income by construction.
F-03 is the pre-children DINK couple. Same dual-income structure, no kids, no mortgage at the modal record — the formation-cohort precursor to A-01 once dependents arrive.
BL-01 is the blended-family version with stepchildren, split-custody dependency-claim handling, and child-support cash flows. A-01 assumes biological/adoptive two-parent structure without custody complexity.
A-01 — Young Family — First Home models the dual-W-2 household in its early-accumulation phase with a recently-purchased home, 1–2 young children, and the first material 529 plan and term-life-insurance needs. The defining feature is the simultaneous arrival of mortgage, childcare, and education-funding obligations.
15 of 30 corpus households still have student-loan balances alongside the new mortgage. This reflects empirical reality at the 30–40 age band: graduate-degree borrowers in education, healthcare, and professional-services industries frequently still have loan balances when they buy a first home. It is the right fixture for student-loan-versus-mortgage prepayment optimization UX.
Same household structure, materially different income. A-01 is mass-affluent ($85k–$205k); A-03 is affluent ($200k–$350k+). The cash-flow stress that characterises A-01 disappears at A-03's income level, and the testing surface shifts to high-income planning constructs — backdoor Roth, mega-backdoor Roth, taxable brokerage, NIIT exposure — rather than the affordability-of-childcare-and-mortgage question.
Yes. 23 of 30 households carry dependents at the age range where childcare costs are material, and the household income range straddles the threshold where the §129 DCFSA election produces a better outcome than the §21 credit. The corpus is the right fixture for testing this comparison UX.
Median liquid net worth of $123,891 against a 6-month-childcare-and-mortgage-included reserve target that frequently exceeds $50k in HCOL metros. Most A-01 households are below recommended reserve levels — useful for testing emergency-fund need-analysis tooling that needs to surface the gap without recommending unrealistic catch-up rates.
No. The shipped v3 A-01 corpus is frozen as of the corpus drift confirmation on 2026-05-09. Sampler improvements land in a future v4 release; the current 30 households are not reproducible from current code.
Download households matching this archetype as part of a Wealth Data Set.
Browse Data Sets