Aging in Place vs Assisted Living: The $69,300 NPV Gap Hiding in September 2026's Wage, CPI, and Mortgage Rate Data
The three numbers that just moved your care cost math
On September 4, 2026, mortgage rates ticked down slightly. Two days earlier, the Bureau of Labor Statistics reported average hourly earnings rose $0.10 in August, payroll employment grew by 162,000, and unemployment held at 4.1%. A month before that, July's CPI came in at a modest +0.1%.
None of those headlines mention "aging in place" or "assisted living." But if you're staring down a decision about a parent — or yourself — who's starting to lose ADLs (activities of daily living: bathing, dressing, transferring, toileting, eating), every one of those data points is a direct input into your cost model. Wage growth sets the trajectory of your home health aide bill. CPI sets your baseline inflation assumption — except for the line items that run hotter than CPI, which most people never separate out. Mortgage and HELOC rates set the cost of financing home modifications. And labor market tightness (4.1% unemployment, modest payroll growth) determines whether you can even find an aide when you need one, at any price.
Let's build a real scenario with real numbers, so you can see exactly how these macro inputs flow into a personal NPV comparison — and where your own numbers would diverge.
The scenario: Dorothy, 79, two ADL losses today
Dorothy needs help bathing and dressing. She's not yet losing mobility or cognition, but her daughter is trying to decide whether to invest in home modifications and in-home aide hours, or start touring assisted living communities. Here's what she's working with:
- Current aide need: 30 hours/week at $33.00/hour (consistent with the local home health aide rate we've tracked in our 2026 wage crossover analysis)
- Home modification cost: $28,000 (grab bars, walk-in shower, stairlift, widened doorways)
- Assisted living alternative: $5,200/month, meals included
- Reserve savings: $150,000 in CDs earning 4.5% APY
- VA Aid & Attendance eligibility: approximately $2,795/month as a benefit offset applicable to either path
Wage growth: translating a $0.10 BLS print into a discount curve
August's average hourly earnings increase of $0.10 is a national, all-industries number — not a home-care-specific figure. But home health aide wages have historically tracked broader wage growth fairly closely because they compete for the same entry-to-mid-level labor pool. Against a national average hourly earnings base in the low-$30s, a $0.10 monthly increase works out to roughly 0.3% month-over-month, or about 3.8% annualized. That's the wage escalation rate we'll apply to Dorothy's aide costs.
This matters more than it sounds like it should. A calculator that assumes flat wages, or that applies generic CPI (1.2% annualized from July's 0.1% print) to labor costs, will systematically underestimate the aging-in-place side of the comparison — because caregiver wages have been rising faster than headline inflation for most of the past few years, and a 4.1% unemployment rate with steady-but-not-explosive payroll growth doesn't suggest that pressure is easing.
ADL decline curve: hours don't stay at 30/week
Based on typical ADL decline patterns, Dorothy's care hours are modeled to escalate as follows:
| Year | Aide hours/week | Wage rate | Annual aide cost |
|---|---|---|---|
| 1 | 30 | $33.00 | $51,480 |
| 2 | 35 | $34.25 | $62,335 |
| 3 | 40 | $35.55 | $73,944 |
| 4 | 45 | $36.90 | $86,346 |
| 5 | 45 (plateau) | $38.30 | $89,622 |
Add grocery costs — and this is where the chicken price data actually earns its place in the model. Chicken prices have been running well above headline CPI due to supply constraints, and protein costs are typically the single biggest driver of a fixed-income grocery bill. Assisted living communities absorb food costs into a flat monthly rate; aging in place doesn't. If Dorothy's grocery bill grows at roughly 4% annually (blended, reflecting protein-heavy inflation) instead of the 1.2% CPI trendline, her food line goes from $5,400 in year 1 to $6,317 by year 5 — a gap most spreadsheets never isolate because they apply one flat inflation rate to everything.
Assisted living: contractual escalation, not wage-linked
Assisted living rent typically escalates around 5% annually by contract, regardless of what CPI or wages are doing that year:
| Year | Monthly rate | Annual cost |
|---|---|---|
| 1 | $5,200 | $62,400 |
| 2 | $5,460 | $65,520 |
| 3 | $5,733 | $68,796 |
| 4 | $6,020 | $72,236 |
| 5 | $6,321 | $75,848 |
Running the NPV
Both paths get the same VA Aid & Attendance offset ($33,540/year) subtracted, since the benefit can apply to either home care or facility care once eligibility criteria are met. The discount rate matters here too, and this is where the NerdWallet piece on taxable CD interest becomes directly relevant: Dorothy's $150,000 reserve is earning 4.5% APY, but at a 22% marginal tax rate, her after-tax yield is closer to 3.51%. That after-tax figure — not the advertised APY — is the right discount rate to use, because it reflects what her money is actually earning while it sits waiting to be spent on care.
Discounting both cost streams at 3.51%:
| 5-Year NPV | |
|---|---|
| Aging in place (net of VA A&A) | $228,200 |
| Assisted living (net of VA A&A) | $158,900 |
| NPV gap | ≈ $69,300 |
In this scenario, assisted living comes out about $69,300 cheaper in present-value terms over five years. That's a real gap — not a rounding artifact — and it's driven almost entirely by the fact that Dorothy's aide hours are escalating with her ADL losses at the same time wages are climbing 3.8% a year, while a flat monthly AL rate only grows 5% off a smaller starting base.
This is the kind of analysis Dorevanti runs for you — so you don't have to build the spreadsheet yourself, track BLS releases, or remember to convert your CD's APY into an after-tax discount rate.
Where the crossover actually flips — and why life expectancy matters
Here's the part most static calculators miss entirely: because assisted living's contractual escalation rate (5%) is higher than the wage-growth rate we applied to aide costs (3.8%), the dollar gap between the two paths actually narrows over a long enough horizon, even though aging in place stays more expensive in absolute terms for years.
Running the same model out to year 20, the annual gap shrinks from roughly $20,000 to about $10,600. Push it to year 25, and the two paths are nearly identical — separated by less than $1,600 a year. Mathematically, they'd fully cross around year 26.
For a 79-year-old, that crossover point sits beyond any realistic life expectancy — which is exactly why life expectancy adjustment matters as its own input, not an afterthought. If Dorothy were 68 instead of 79, with a longer projected horizon, that same crossover dynamic could plausibly land inside her actual planning window, and the "assisted living wins" conclusion could weaken or reverse. This is the same dynamic we walked through with the ADL decline rate as the deciding variable across a 10-year horizon — the answer isn't fixed, it's a function of how long you're modeling for.
What the labor market data adds that cost alone doesn't
The 4.1% unemployment rate and 162,000 payroll gain aren't just wage-growth inputs — they're availability signals. A genuinely tight labor market for caregivers means that even if you've budgeted for $33/hour aide care, you may not be able to hire someone at that rate on the schedule you need, particularly for weekend or overnight coverage as hours climb toward 45/week. That's a risk factor that doesn't show up in an NPV table but absolutely shows up in real life. It's part of why we built out the 7-gate decision framework to sit alongside the pure cost math — because a cheaper option you can't reliably staff isn't actually the cheaper option.
What would change your numbers
Dorothy's $69,300 gap is one scenario, built on specific assumptions: 30 starting hours, $28,000 in modifications, a 4.5% CD yield, and a 22% tax bracket. Change any one of these and the gap moves, sometimes dramatically:
- Lower starting hours (20/week instead of 30): narrows the gap significantly, since the wage-growth compounding has a smaller base to work from.
- Falling mortgage/HELOC rates (like September 4's modest dip): reduces the cost of financing the $28,000 modification, tilting slightly toward aging in place — see our breakdown of HELOC rates and the cost crossover.
- Higher tax bracket on reserve interest: lowers your after-tax discount rate, which increases the present value of future costs on both sides, but disproportionately affects whichever path has more of its costs pushed further into the future.
- Faster ADL decline: pulls the 45-hour plateau earlier, front-loading aging-in-place costs and widening the gap in assisted living's favor.
Your reserve balance, your tax bracket, your local aide wage, your parent's actual ADL trajectory, and your own life expectancy assumptions are all different from Dorothy's. The direction of the math might match hers. The magnitude almost certainly won't.
You can model this for your specific situation at Dorevanti — plugging in your actual wage rates, your actual reserve yield and tax bracket, your actual VA benefit eligibility, and your own ADL decline assumptions, rather than relying on a national average that was never built for your household.
The math doesn't care which answer feels right. It just needs your real numbers to tell you which one actually is.
Sources
- Major Economic Indicators Latest Numbers — Bureau of Labor Statistics
- Interest on CDs and Savings Accounts is Taxable. Here’s What To Know — NerdWallet
- What Is a Savings Rate? How to Find Yours and Why It Matters — NerdWallet
- Mortgage Rates Today, Friday, September 4: A Little Lower — NerdWallet
- Here’s Why Chicken Is So Expensive Now — NerdWallet