On population-and-price measures, 2023-25 general-fund spending was $16.9-21.2 billion a biennium above where 2013-15 spending would have grown, five to nine times the $2.3-3.5 billion the millionaires tax would raise in 2027-29. Its first full biennium, 2029-31, would raise about $9.4 billion, roughly half the excess. Measured against the 2005-07 share of personal income, spending was $7.6 billion below the path.
| billions | group | label | period |
|---|---|---|---|
| 21.22 | 2023-25 spending above path | US CPI | 2023-25 |
| 20.63 | 2023-25 spending above path | Govt prices | 2023-25 |
| 16.87 | 2023-25 spending above path | Seattle CPI | 2023-25 |
| 8.23 | 2023-25 spending above path | Income '13-15 | 2023-25 |
| -7.58 | 2023-25 spending above path | Income '05-07 | 2023-25 |
| 2.31 | Millionaires tax revenue | Net 27-29 | 2027-29 |
| 2.7 | Millionaires tax revenue | Gross 27-29 | 2027-29 |
| 3.5 | Millionaires tax revenue | Sept 27-29 | 2027-29 |
| 9.44 | Millionaires tax revenue | Sept 29-31 | 2029-31 |