Missouri · Railroad Retirement Tier 1 Exclusion
Railroad Retirement Tier 1 Exclusion in Missouri (2026)
Railroad Retirement Tier 1 benefits receive the same favorable tax treatment as Social Security, with up to 85% subject to tax based on provisional income. Missouri has a progressive income tax with a top rate of 4.7%, so a Missouri filer's combined marginal rate on the next dollar at $60,374 of income is about 16.7% (12% federal + 4.7% MO).
2026 savings example for Missouri
Planning estimate for a single filer earning $60,374 (Missouri median household income in LevyIO's state dataset) who removes $5,000 from taxable income. Federal tax uses the 2026 IRS brackets after the $16,100 standard deduction; MO tax uses the state brackets in LevyIO's dataset and assumes the state follows the federal treatment.
Estimated total savings
$835
Federal savings
$600
$5,065 → $4,465 · 12% bracket
MO state savings
$235
$1,900 → $1,665 · 4.7% marginal
Combined marginal rate
16.7%
≈ $167 saved per $1,000 deducted
Federal × Missouri marginal rates (2026, single)
Gross-income ranges include the federal standard deduction. The MO column is the state marginal rate at the midpoint of each range. The last column is the tax saved per $1,000 deducted at that combined rate.
| Federal bracket | Gross income (single) | MO marginal | Combined | Per $1,000 |
|---|---|---|---|---|
| 10% | $16,100 - $28,500 | 3.5% | 13.5% | $135 |
| 12% | $28,500 - $66,500 | 4.7% | 16.7% | $167 |
| 22% | $66,500 - $121,800 | 4.7% | 26.7% | $267 |
| 24% | $121,800 - $217,875 | 4.7% | 28.7% | $287 |
| 32% | $217,875 - $272,325 | 4.7% | 36.7% | $367 |
| 35% | $272,325 - $656,700 | 4.7% | 39.7% | $397 |
| 37% | Over $656,700 | 4.7% | 41.7% | $417 |
Eligibility & forms
Railroad retirees receiving Tier 1 benefits equivalent to Social Security
- Tier 1 benefits taxed like Social Security
- Tier 2 benefits taxed as pension income
- Same provisional income thresholds as Social Security
Federal forms: Form RRB-1099, Form RRB-1099-R
Missouri filing notes
Missouri allows a federal income tax deduction based on federal tax actually paid, so filing software may differ from this estimate. Check the 2026 withholding formula, Form MO-1040, Form MO-A, and the DOR capital gains subtraction FAQ for current filing treatment.
Common mistakes: Treating all railroad retirement as fully taxable; Not applying Social Security taxation rules to Tier 1; Missing state tax exclusions for railroad retirement.
Frequently asked questions
How much can the Railroad Retirement Tier 1 Exclusion save a Missouri taxpayer in 2026?
In LevyIO's example, a single filer with $60,374 of income (the Missouri median household income in our state dataset) who removes $5,000 from taxable income saves about $600 in 2026 federal tax (12% marginal bracket) plus about $235 in Missouri tax (4.7% state marginal rate), roughly $835 combined. It is a planning estimate computed from the 2026 IRS brackets and LevyIO's MO bracket data, not a survey figure.
What is the Missouri income tax rate for 2026?
Missouri has a progressive income tax with a top rate of 4.7%. The MO standard deduction in LevyIO's dataset is $16,100 single / $32,200 married. 2026 DOR withholding formula uses indexed annual brackets to 4.7% above $9,436 and standard deductions of $16,100 single / $32,200 married. Federal income tax deduction allowed.
Who qualifies for the Railroad Retirement Tier 1 Exclusion in Missouri?
Railroad retirees receiving Tier 1 benefits equivalent to Social Security. The federal rules are the same in every state; the requirements are: Tier 1 benefits taxed like Social Security; Tier 2 benefits taxed as pension income; Same provisional income thresholds as Social Security. Missouri filers should confirm on the MO return whether the state follows the federal treatment.
Which forms do I file to claim the Railroad Retirement Tier 1 Exclusion?
Federal: Form RRB-1099, Form RRB-1099-R. Missouri: check the Missouri Department of Revenue instructions for the matching state schedule. Common mistakes: Treating all railroad retirement as fully taxable; Not applying Social Security taxation rules to Tier 1; Missing state tax exclusions for railroad retirement.
Railroad Retirement Tier 1 Exclusion in other states
- Full Railroad Retirement Tier 1 Exclusion guide (all states)
- Railroad Retirement Tier 1 Exclusion in Kentucky
- Railroad Retirement Tier 1 Exclusion in Tennessee
- Railroad Retirement Tier 1 Exclusion in Arizona
- Railroad Retirement Tier 1 Exclusion in Connecticut
- Railroad Retirement Tier 1 Exclusion in Minnesota
Sources
Reviewed 2026-09-17. Estimates are educational planning figures computed from the IRS 2026 inflation adjustments and LevyIO's state bracket dataset; they are not tax advice.