As of the time of this posting, the MO state tax calculation (desktop version) is still using the 2022 tax table to calculate income tax.
The old table has a 5.3% top rate and the new table 4.95%. I realize that there are a lot of things to be updated every year, but that's a pretty darn important one to get right! Please update promptly!
2022:
If the Missouri taxable income is: The tax is:
$0 to $111. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $0
At least $112 but not over $1,121. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1.5% of the Missouri taxable income
Over $1,121 but not over $2,242 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $17 plus 2.0% of excess over $1,121
Over $2,242 but not over $3,363 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $39 plus 2.5% of excess over $2,242
Over $3,363 but not over $4,484 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $67 plus 3.0% of excess over $3,363
Over $4,484 but not over $5,605 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $101 plus 3.5% of excess over $4,484
Over $5,605 but not over $6,726 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $140 plus 4.0% of excess over $5,605
Over $6,726 but not over $7,847 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $185 plus 4.5% of excess over $6,726
Over $7,847 but not over $8,968 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $235 plus 5.0% of excess over $7,847
Over $8,968 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . $291 plus 5.3% of excess over $8,968
2023:
If the Missouri taxable income is... | The tax is... |
| $0 to $1,207 | $0 |
| Over $1,207 but not over $2,414 | 2.00% of excess over $1,207 |
| Over $2,414 but not over $3,621 | $24 plus 2.50% of excess over $2,414 |
| Over $3,621 but not over $4,828 | $54 plus 3.00% of excess over $3,621 |
| Over $4,828 but not over $6,035 | $90 plus 3.50% of excess over $4,828 |
| Over $6,035 but not over $7,242 | $132 plus 4.00% of excess over $6,035 |
| Over $7,242 but not over $8,449 | $180 plus 4.50% of excess over $7,242 |
| Over $8,449 | $234 plus 4.95% of excess over $8,449 |
