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HSA Contributions in St. Louis, MO 2026

Calculate your hsa contributions tax savings in St. Louis, Missouri. With Missouri's 4.8% state tax rate, your combined savings are higher.

Missouri Tax Context

State Income Tax
4.8%
Local Income Tax
1%
Property Tax Rate
0.96%
Tax Burden
Moderate

St. Louis earnings tax of 1%; independent city; high combined sales tax

$1,154
Est. Total Savings
$4,150
Max Deduction
Above-the-Line
Deduction Type
27.8%
Combined Tax Rate

HSA Contributions Savings Calculator for St. Louis

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Federal Savings

$913

22% bracket

Missouri State

$199

4.8% rate

Local Tax

$42

1% rate

Total Savings

$1,154

27.8% combined

At a 27.8% combined tax rate in St. Louis, every $1,000 in deductions saves you $278 in taxes.

Savings by Tax Bracket in St. Louis

10%
$790
12%
$890
22%
$1,390
24%
$1,490
32%
$1,890
35%
$2,040
37%
$2,140

Includes 4.8% Missouri state tax + 1% local tax on top of federal savings.

Eligibility Requirements

Available to individuals enrolled in a High Deductible Health Plan (HDHP) who are not enrolled in Medicare or claimed as a dependent on someone else's return.

  • 1Must be enrolled in a qualifying HDHP
  • 2Cannot be enrolled in Medicare
  • 3Cannot be claimed as a dependent
  • 4Cannot have other non-HDHP health coverage (with limited exceptions)

Missouri residents should verify that this deduction is also recognized on their state tax return for additional savings of up to 4.8%.

Common Mistakes to Avoid

  • !Exceeding annual contribution limits ($4,150 self-only, $8,300 family for 2026)
  • !Contributing while enrolled in Medicare
  • !Not counting employer contributions toward the limit
  • !Using HSA funds for non-qualified expenses
  • !Forgetting to claim the deduction on your Missouri state return (missing 4.8% additional savings)
  • !Not checking if St. Louis's local income tax allows this deduction (1% potential additional savings)

Required Tax Forms

Form 8889

File these forms with your federal tax return to claim the hsa contributions. Missouri may require additional state-specific forms.

Other Tax Deductions in St. Louis, MO

Medical and Dental Expenses Deduction

Healthcare

~$10,109
est. savings

HSA Contribution Deduction

Healthcare

~$4,423
est. savings

Long-Term Care Insurance Premiums

Healthcare

~$3,159
est. savings

Self-Employed Health Insurance

Healthcare

~$10,109
est. savings

Medical and Dental Expenses

Healthcare

~$6,318
est. savings

Archer Medical Savings Account

Healthcare

~$3,159
est. savings

Health Savings Account (HSA)

Healthcare

~$5,686
est. savings

Mortgage Interest Deduction

Housing

~$4,423
est. savings

HSA Contributions in Other Missouri Cities

Kansas City, MO

4.8% state + 1% local

~$1,137
-17 vs St. Louis

Springfield, MO

4.8% state tax

~$1,096
-58 vs St. Louis

Columbia, MO

4.8% state tax

~$1,096
-58 vs St. Louis

Independence, MO

4.8% state tax

~$1,096
-58 vs St. Louis

Lee's Summit, MO

4.8% state tax

~$1,096
-58 vs St. Louis

Lee's Summit, MO

4.95% state + 1.35% local

~$1,158
+4 vs St. Louis

OFallon, MO

4.95% state + 1.24% local

~$1,153
-1 vs St. Louis

St. Joseph, MO

4.95% state + 1.35% local

~$1,158
+4 vs St. Louis

Calculate Your Full Tax Savings in St. Louis

Use our free tax calculators to optimize your entire tax return for Missouri.

Income Tax CalculatorTaxes in St. LouisFull HSA Contributions Guide

Frequently Asked Questions

How much can I save with the HSA Contributions in St. Louis, MO?

In St. Louis, Missouri, the hsa contributions can save you an estimated $1,154 per year. This includes $913 in federal tax savings and $199 in Missouri state tax savings plus $42 in local tax savings. The national average savings is $900/year.

What is the Missouri state income tax rate for St. Louis residents?

Missouri has a 4.8% state income tax rate. St. Louis residents also pay a 1% local income tax, bringing the combined state/local rate to 5.8%. St. Louis earnings tax of 1%; independent city; high combined sales tax

Who qualifies for the HSA Contributions in St. Louis?

Available to individuals enrolled in a High Deductible Health Plan (HDHP) who are not enrolled in Medicare or claimed as a dependent on someone else's return.. The eligibility requirements are the same whether you live in St. Louis or elsewhere in the U.S., as this is a federal tax deduction. However, your savings amount will vary based on Missouri's 4.8% state tax rate.

What tax forms do I need to claim the HSA Contributions in Missouri?

To claim the hsa contributions, you need to file Form 8889 with your federal return. Missouri residents should also check if the state allows this deduction on their state return, which could provide an additional 4.8% savings. Filing status affects your deduction limits and tax bracket.

Is the HSA Contributions better in St. Louis than in states without income tax?

Yes, St. Louis residents benefit more because Missouri's 4.8% state income tax means the deduction reduces both your federal AND state tax liability. In states with no income tax (like Texas, Florida, or Nevada), this deduction only reduces federal taxes. Your combined rate of 27.8% means more savings per dollar deducted.

Related Calculators

Medical and Dental Expenses Deduction in St. Louis

Avg savings: $8,000/year

HSA Contribution Deduction in St. Louis

Avg savings: $3,500/year

Long-Term Care Insurance Premiums in St. Louis

Avg savings: $2,500/year

Self-Employed Health Insurance in St. Louis

Avg savings: $8,000/year

Medical and Dental Expenses in St. Louis

Avg savings: $5,000/year

Archer Medical Savings Account in St. Louis

Avg savings: $2,500/year