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Interstate Relocation: Idaho → Illinois

Moving from Idaho to Illinois: Cost & Tax Comparison

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

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

Effective Tax Rate Change +0.6 pts IL vs ID, $100k single
Annual Tax Savings -$613 Federal + FICA + state, $100k
1BR Rent Change +0.9% Avg 1BR $1,053 vs $1,044/mo
Net Annual Difference -$720 Tax savings + 1BR rent savings

What changes when you move from Idaho to Illinois

Idaho has a flat 5.3% income tax and Illinois has a flat 4.95% income tax. On a $100,000 salary a single filer pays $4,192 in state income tax in Idaho and $4,805 in state income tax in Illinois. With federal income tax and FICA unchanged, total tax rises by $613 a year after the move. HUD's one-bedroom Fair Market Rent averages $1,044 a month across Idaho's metro areas and $1,053 across Illinois's (+0.9%). Pay differs too: the BLS median wage across all occupations, weighted by employment in each state's metros, is $48,126 in Idaho 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: Idaho

Idaho 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 IdahoNational Relocation Hub

Metropolitan Corridors Between Idaho & Illinois

Boise City, ID → Chicago-Naperville-Elgin, IL-IN On $100k: $613 more tax and $5,820 more 1BR rent a year
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Boise City, ID → Peoria, IL On $100k: $613 more tax and $4,008 less 1BR rent a year
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Coeur d'Alene, ID → Chicago-Naperville-Elgin, IL-IN On $100k: $613 more tax and $5,880 more 1BR rent a year
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Coeur d'Alene, ID → Peoria, IL On $100k: $613 more tax and $3,948 less 1BR rent a year
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Moving from Idaho to Illinois: Cost & Tax Comparison Overview

Moving from Idaho to Illinois on a $100,000 salary: pay $613 more in total taxes per year; average one-bedroom rent is $1,053 vs $1,044 a month (HUD FMR).

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

For a single filer earning $100,000 with no local income tax, total federal, FICA and state taxes are $613 higher in Illinois than in Idaho (0.6 percentage points of gross pay). The average HUD one-bedroom Fair Market Rent across Illinois's metros is $1,053 a month, versus $1,044 in Idaho (+0.9%). Taxes and one-bedroom rent combined change by -$720 a year.

What are the key tax differences between Idaho and Illinois?

Idaho: Flat Tax, top rate 5.3%. Illinois: Flat Tax, top rate 4.95%. Federal income tax and FICA are the same in both states.