What is the sales tax rate in DeKalb County, IL?

The average sales tax rate in DeKalb County (IL) is 6.80%, with jurisdictions ranging between 6.25% and 7.25%.

DeKalb County • Illinois (IL)

11 ZIP Code

DeKalb County, IL Sales Tax Rates 2026

2026 sales tax rate guide for DeKalb County, IL. Average combined tax rate is 6.80% with local jurisdictions ranging up to 7.25%.

Average Combined Rate

6.80%

Estimated Tax Range: 6.25% - 7.25%

⚡ Direct Tax Answer & Key Takeaway

As of 2026, the local county sales tax rate in DeKalb County (Illinois) is 0.00%. Combined sales tax rates across cities in this county range from 6.25% to 7.25% (averaging 6.80%).

County Tax

0.00%

Average Combined Rate

6.80%

Max Local Rate

7.25%

Indexed Cities

Cities & Towns in DeKalb County

City	Combined Sales Tax Rate	Action
DeKalb	6.25%	View Tax Rates →
Genoa	7.25%	View Tax Rates →
Cortland	7.25%	View Tax Rates →
Hinckley	7.25%	View Tax Rates →
Somonauk	6.25%	View Tax Rates →
Kirkland	7.25%	View Tax Rates →
Waterman	7.25%	View Tax Rates →
Kingston	6.25%	View Tax Rates →
Malta	6.25%	View Tax Rates →
Shabbona	7.25%	View Tax Rates →

📋 State Tax Rules & Compliance Guide

Sourcing Rule: Origin-based for in-state retailers, Destination for out-of-state

Groceries & Food: Reduced 1% rate

Clothing & Apparel: Taxable

SaaS & Digital Goods: Non-Taxable (Chicago imposes separate 9% Personal Property Lease Tax)

Economic Nexus Threshold: $100,000 or 200 transactions

Official Tax Authority: Illinois Department of Revenue ↗

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Address-Specific Rates Rates current for 2026

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ZIP Codes in DeKalb County

60112 7.25% 60115 6.25% 60135 7.25% 60145 6.25% 60146 7.25% 60150 6.25% 60520 7.25% 60548 6.25% 60550 7.25% 60552 6.25% 60556 7.25%

❓ Frequently Asked Questions

Key questions and answers regarding sales tax rates, exemptions, and compliance.

The county tax rate for DeKalb County is 0.00%. When combined with Illinois state taxes and local municipal/district taxes, the overall sales tax rate varies between 6.25% and 7.25%.

In Illinois, grocery items are currently Reduced 1% rate. SaaS and digital automated goods are Non-Taxable (Chicago imposes separate 9% Personal Property Lease Tax).