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Interstate Relocation: Illinois → Idaho

Moving from Illinois to Idaho: Cost & Tax Comparison

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

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

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

What changes when you move from Illinois to Idaho

Illinois has a flat 4.95% income tax and Idaho has a flat 5.3% income tax. On a $100,000 salary a single filer pays $4,805 in state income tax in Illinois and $4,192 in state income tax in Idaho. With federal income tax and FICA unchanged, total tax falls by $613 a year after the move. HUD's one-bedroom Fair Market Rent averages $1,053 a month across Illinois's metro areas and $1,044 across Idaho's (-0.9%). Pay differs too: the BLS median wage across all occupations, weighted by employment in each state's metros, is $54,104 in Illinois and $48,126 in Idaho. 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: Illinois

Illinois Paycheck & Living Costs

Paycheck Living Cost Salaries
Destination State: Idaho

Idaho Paycheck & Living Costs

Paycheck Living Cost Salaries
Reverse Corridor Analysis:
Moving from Idaho to IllinoisNational Relocation Hub

Metropolitan Corridors Between Illinois & Idaho

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

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

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

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

What are the key tax differences between Illinois and Idaho?

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