Moving From HCOL to MCOL at $90k: Annual Savings Math

A household earning $90,000 in the New York-Newark-Jersey City metro area spends as if it earned roughly $79,800 anywhere else in the country. That $10,200 gap is not a raise, a bonus, or an investment return — it is pure price level. According to the Bureau of Economic Analysis Regional Price Parities released in December 2025 (covering calendar year 2023), the New York metro’s all-items price level runs about 12.5% above the national average, while Austin runs roughly 2.4% below it. Move the income without cutting it, and the arithmetic of geographic arbitrage for remote workers starts to favor you immediately.

Geographic arbitrage — earning at one market’s wage while paying another market’s prices — gets sold with screenshots of cheap rent and zero context on what actually moves a household’s annual position. This analysis strips it to the measurable components for a $90,000 remote earner leaving a high-cost-of-living (HCOL) metro for a mid-cost-of-living (MCOL) one, using federal price-parity data rather than self-reported listings.

The numbers that matter

Source: Bureau of Economic Analysis, Regional Price Parities (2023 vintage, released December 2025), as compiled by the Tax Foundation. Figures rounded.

How the price gap converts to dollars

RPP is an index where 100 equals the national price level. The BEA’s published “real value of $100” figures translate directly: $100 buys $88.91 of goods and services in the New York-Newark-Jersey City metro, $84.58 in San Francisco-Oakland-Berkeley, and $102.44 in Austin-Round Rock-Georgetown. Invert those and you get the price level each household actually faces.

Take the NYC-to-Austin move first. A household consuming $90,000 worth of goods and services in New York faces prices about 12.5% above national; the identical basket in Austin costs about 2.4% below national. The price differential between the two metros is roughly 15 percentage points. Applied to spending — not gross income, since savings and taxes don’t shrink with local prices — the COL reduction on the consumed portion lands in the range of $11,000 to $13,000 per year for a household that spends most of what it earns. The exact figure depends on how much of the $90,000 is spent versus saved, and on housing tenure.

Housing is the lever. The BEA notes that NYC-to-Austin cost-of-living differences are driven overwhelmingly by rents, which vary far more across metros than goods or services. A renter captures close to the full price gap on day one. An owner who carries a mortgage from the origin metro captures far less until they sell and rebuy, which is why the relocation math below treats housing transition as a one-time cost rather than an instant saving.

Three destination metros, one origin salary

The table below runs the same $90,000 remote salary against three common MCOL destinations, holding income constant — the defining condition of domestic geo arbitrage. COL reduction is modeled on the consumed share of income (assumed at roughly 75%, or $67,500) multiplied by the metro-to-metro price differential. Relocation is amortized over a three-year planned stay.

Source: Price levels from BEA Regional Price Parities (2023 vintage, released December 2025), Tax Foundation compilation. Relocation amortized from a $12,000 assumed one-time moving and transition cost over three years. Finluxy Geo Arbitrage Net Gain = annual COL reduction − income reduction ($0, salary held constant) − tax differential (≈$0 in these no-income-tax / low-tax pairings, see below) − amortized relocation. Figures rounded; individual results vary with spending mix and housing tenure.

Note what the tax column does and doesn’t do here. Texas and Tennessee levy no state income tax; North Carolina’s flat individual rate sat at 4.25% for 2025. A remote worker genuinely severing New York residency would shed New York’s progressive state tax — but only if the move actually changes their tax home. That qualifier carries more weight than the COL gap for high earners, which is the part most coverage skips.

The San Francisco case, where the gap is widest

San Francisco changes the magnitude. At a 2023 price level 18.2% above national, the SF-Oakland-Berkeley metro is the most expensive large metro the BEA tracks; $100 there buys $84.58 of goods and services. Against Austin’s −2.4%, the metro-to-metro price differential approaches 21 percentage points.

Run that through the same model: on roughly $67,500 of consumed income, a high-value domestic geo arbitrage city pair like San Francisco to Austin produces a COL reduction near $14,000 annually, and closer to $15,700 on the full equivalent-spending basis cited in the summary block. Subtract the same $4,000 amortized relocation and the Finluxy Geo Arbitrage Net Gain lands around $10,000 to $11,700 per year — before counting California’s state income tax, which a clean residency break would eliminate.

California is also where the California remote worker tax question gets sharp. The Franchise Tax Board scrutinizes departing residents, and a half-committed move — keeping a California home, returning for months, retaining ties — can leave the income taxable in California regardless of where the laptop sits. The COL savings are real on day one; the tax savings are conditional on doing the residency change properly.

The convenience-of-employer trap most calculators ignore

Here is what the price-parity data alone won’t tell you, and what most geo arbitrage content overlooks: the destination’s low cost of living can be entirely real while the tax savings you assumed never materialize. Seven states — New York, New Jersey, Pennsylvania, Connecticut, Delaware, Arkansas, and Nebraska — apply a “convenience of employer” rule that sources a remote worker’s wages to the employer’s office location, not the worker’s home.

For a $90,000 earner whose employer is headquartered in New York, moving to Austin can lower living costs by thousands while New York continues taxing the wages as if every workday happened in Manhattan. In May 2025 the New York Tax Appeals Tribunal upheld the rule in the Zelinsky case, and in the 2025 Matter of Hoff decision the Tribunal sustained a New York deficiency against a couple holding Florida domicile documents — because the remote arrangement served the worker’s convenience, not the employer’s necessity. The lesson for the geo arbitrage household is blunt: a moving truck and a new driver’s license do not, by themselves, defeat the convenience rule. The tax-residency mechanics that govern who qualifies for relief are where the real money sits, not in the rent differential.

This is the figure most “save $X by moving” calculators silently assume away. They credit the mover with full elimination of origin-state tax. For employees of HCOL-headquartered firms under a convenience rule, that elimination may not happen at all, turning a modeled $6,000 net gain into a number anchored almost entirely on COL — still positive, but smaller and more fragile than advertised.

What the data shows that listings don’t

Numbeo and similar crowdsourced trackers will tell you Austin rent is cheaper than New York rent. That is true and useless on its own, because it captures the most volatile, self-selected line item and ignores the basket. The BEA’s all-items RPP integrates housing, goods, services, and utilities into one figure with consistent methodology across all 384 metros it covers — which is why the metro-to-metro gaps here are smaller and more honest than the rent-only comparisons that dominate relocation marketing.

The gap between perception and the federal data is the whole game. A renter who spends most of their income and severs origin-state tax cleanly captures something close to the full modeled gain. An owner carrying an origin mortgage, or an employee trapped by a convenience rule, captures a fraction. The price-parity number is the ceiling, not the floor.

What this means for a $150k+ household

For households above $150,000 the arithmetic inverts in an instructive way. A larger share of income is saved or invested rather than consumed, which means the COL reduction applies to a smaller fraction of gross income — the percentage savings on the consumed basket is identical, but the dollar lever is proportionally weaker against total earnings. At the same time, the tax differential grows in importance: a high earner leaving California or New York stands to save far more in state income tax than in grocery and rent prices combined, provided the residency change is real and defensible. For this cohort the decision is less “how cheap is the destination” and more “can I cleanly break tax residency from an aggressive origin state, and is my employer’s headquarters going to follow me through a convenience rule.” Households weighing international moves face a different calculus entirely, where the foreign earned income exclusion ($130,000 per qualifying person for tax year 2025, rising to $132,900 for 2026 per IRS Publication 54) and treaty mechanics dominate; the purchasing power of $150k across ten countries is the better starting frame there. The point worth holding onto: at this income level, the price-parity savings are the appetizer, the tax outcome is the entrée, and getting the second one wrong can erase the first. A residency-change strategy this consequential is worth modeling with a tax professional who knows your origin state’s nexus rules before the moving truck is booked.