Machine Learning Engineer · Salary Comparison · 2026
Machine Learning Engineer Salary: Phoenix, AZ vs Boston, MA
Side-by-side comparison of salary, taxes, cost of living, and take-home pay for Machine Learning Engineers in Phoenix, AZ and Boston, MA, based on BLS OEWS 2026 data.
1Which City Pays More After Tax?
Higher Gross Salary
✓ Boston, MA
$118,000 vs $150,000
Better Purchasing Power
✓ Phoenix, AZ
$114,563 vs $92,593
Best Take-Home (COL-Adj)
✓ Phoenix, AZ
$103,210 vs $81,278
2
Detailed Comparison
| Metric | Phoenix, AZ | Boston, MA | Diff |
|---|---|---|---|
| Median Annual Salary | $118,000 | $150,000▲ | -$32,000 |
| 25th Percentile | $90,860 | $115,500▲ | -$24,640 |
| 75th Percentile | $151,040 | $192,000▲ | -$40,960 |
| 90th Percentile | $188,800 | $240,000▲ | -$51,200 |
| Cost of Living Index | 103 | 162 | -59 |
| State Income Tax | 2.5%▲ | 5% | -2.5% |
| COL-Adjusted Median | $114,563▲ | $92,593 | +$21,970 |
| Est. Annual Take-Home | $106,306 | $131,670▲ | -$25,364 |
| COL-Adj. Take-Home | $103,210▲ | $81,278 | +$21,932 |
| Total Employment | 20,000 | 33,600 | -13,600 |
▲ = Higher value wins for this metric. Diff = Phoenix, AZ minus Boston, MA.
3Summary Analysis
On paper, Boston, MA pays $32,000 more (median: $118,000 vs $150,000). However, after adjusting for cost of living (index 103 vs 162), Phoenix, AZ provides better purchasing power ($114,563 vs $92,593 equivalent). Phoenix, AZ has the lower state tax rate (2.5% vs 5%).
Data: U.S. Bureau of Labor Statistics OEWS · 2026 · Cost-of-living indices from composite metro area data. Take-home estimates approximate only — consult a tax professional for accurate figures.