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Interstate Relocation: Missouri → Illinois

Moving from Missouri to Illinois: Cost & Tax Comparison

Compare state income tax savings, HUD rent differentials, and household purchasing power adjustments when relocating from Missouri to Illinois.

Data updated · Sources: HUD FY 2027 Fair Market Rents, EPI 2026 Family Budget, 2026 tax tables · Methodology

Effective Tax Rate Change +1.1 pts IL vs MO, $100k single
Annual Tax Savings -$1,135 Federal + FICA + state, $100k
1BR Rent Change +19.4% Avg 1BR $1,053 vs $882/mo
Net Annual Difference -$3,192 Tax savings + 1BR rent savings

What changes when you move from Missouri to Illinois

Missouri has graduated income tax rates up to 4.7% and Illinois has a flat 4.95% income tax. On a $100,000 salary a single filer pays $3,670 in state income tax in Missouri and $4,805 in state income tax in Illinois. With federal income tax and FICA unchanged, total tax rises by $1,135 a year after the move. HUD's one-bedroom Fair Market Rent averages $882 a month across Missouri's metro areas and $1,053 across Illinois's (+19.4%). Pay differs too: the BLS median wage across all occupations, weighted by employment in each state's metros, is $49,559 in Missouri and $54,104 in Illinois. City and county income taxes, which some localities add, are not included in these state-level figures; the metro routes below include them.

Origin State: Missouri

Missouri Paycheck & Living Costs

Paycheck Living Cost Salaries
Destination State: Illinois

Illinois Paycheck & Living Costs

Paycheck Living Cost Salaries
Reverse Corridor Analysis:
Moving from Illinois to MissouriNational Relocation Hub

Metropolitan Corridors Between Missouri & Illinois

St. Louis, MO-IL → Chicago-Naperville-Elgin, IL-IN On $100k: $135 more tax and $8,112 more 1BR rent a year
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St. Louis, MO-IL → Peoria, IL On $100k: $135 more tax and $1,716 less 1BR rent a year
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Kansas City, MO-KS → Chicago-Naperville-Elgin, IL-IN On $100k: $135 more tax and $4,968 more 1BR rent a year
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Kansas City, MO-KS → Peoria, IL On $100k: $135 more tax and $4,860 less 1BR rent a year
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Moving from Missouri to Illinois: Cost & Tax Comparison Overview

Moving from Missouri to Illinois on a $100,000 salary: pay $1,135 more in total taxes per year; average one-bedroom rent is $1,053 vs $882 a month (HUD FMR).

Quick answers
How much money will I save moving from Missouri to Illinois?

For a single filer earning $100,000 with no local income tax, total federal, FICA and state taxes are $1,135 higher in Illinois than in Missouri (1.1 percentage points of gross pay). The average HUD one-bedroom Fair Market Rent across Illinois's metros is $1,053 a month, versus $882 in Missouri (+19.4%). Taxes and one-bedroom rent combined change by -$3,192 a year.

What are the key tax differences between Missouri and Illinois?

Missouri: Graduated Brackets, top rate 4.7%. Illinois: Flat Tax, top rate 4.95%. Federal income tax and FICA are the same in both states.