Industries Metros Compare Paycheck Cost of Living Relocation Offer Compare
Interstate Relocation: Illinois → Connecticut

Moving from Illinois to Connecticut: Cost & Tax Comparison

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

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

Effective Tax Rate Change +0.2 pts CT vs IL, $100k single
Annual Tax Savings -$170 Federal + FICA + state, $100k
1BR Rent Change +55.9% Avg 1BR $1,642 vs $1,053/mo
Net Annual Difference -$7,240 Tax savings + 1BR rent savings

What changes when you move from Illinois to Connecticut

Illinois has a flat 4.95% income tax and Connecticut has graduated income tax rates up to 6.99%. On a $100,000 salary a single filer pays $4,805 in state income tax in Illinois and $4,975 in state income tax in Connecticut. With federal income tax and FICA unchanged, total tax rises by $170 a year after the move. HUD's one-bedroom Fair Market Rent averages $1,053 a month across Illinois's metro areas and $1,642 across Connecticut's (+55.9%). Pay differs too: the BLS median wage across all occupations, weighted by employment in each state's metros, is $54,104 in Illinois and $59,279 in Connecticut. 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: Connecticut

Connecticut Paycheck & Living Costs

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

Metropolitan Corridors Between Illinois & Connecticut

Chicago-Naperville-Elgin, IL-IN → Hartford-West Hartford-East Hartford, CT On $100k: $170 more tax and $2,844 less 1BR rent a year
Compare
Chicago-Naperville-Elgin, IL-IN → Bridgeport-Stamford-Danbury, CT On $100k: $170 more tax and $3,492 more 1BR rent a year
Compare
Peoria, IL → Hartford-West Hartford-East Hartford, CT On $100k: $170 more tax and $6,984 more 1BR rent a year
Compare
Peoria, IL → Bridgeport-Stamford-Danbury, CT On $100k: $170 more tax and $13,320 more 1BR rent a year
Compare
Moving from Illinois to Connecticut: Cost & Tax Comparison Overview

Moving from Illinois to Connecticut on a $100,000 salary: pay $170 more in total taxes per year; average one-bedroom rent is $1,642 vs $1,053 a month (HUD FMR).

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

For a single filer earning $100,000 with no local income tax, total federal, FICA and state taxes are $170 higher in Connecticut than in Illinois (0.2 percentage points of gross pay). The average HUD one-bedroom Fair Market Rent across Connecticut's metros is $1,642 a month, versus $1,053 in Illinois (+55.9%). Taxes and one-bedroom rent combined change by -$7,240 a year.

What are the key tax differences between Illinois and Connecticut?

Illinois: Flat Tax, top rate 4.95%. Connecticut: Graduated Brackets, top rate 6.99%. Federal income tax and FICA are the same in both states.