--- title: "Bookkeeping and billing teams for Illinois businesses" description: "Remote bookkeeping, invoicing, AR/AP and reconciliation for Illinois businesses, in your hours. Local tax notes, industries and software for Illinois." url: https://ledgerbpo.com/locations/us/illinois/ updated: 2026-09-11 publisher: LedgerBPO (SS Support Network LLC) language: en-US --- # Bookkeeping and billing teams for Illinois businesses LedgerBPO delivers bookkeeping services illinois businesses use for reconciliation, invoicing and month-end close across manufacturing, logistics and professional services, with a named dedicated accountant working inside your own software. We track Illinois's flat income tax, sales tax layers and Chicago-area rates so your books stay accurate all year. - Since 2020 - 🇺🇸 USD invoicing - No local office, live in your hours - Named accountant plus backup [Get a custom quote](https://ledgerbpo.com/get-a-quote/) [Book a 20-minute call](https://ledgerbpo.com/book-a-call/) Updated September 2026 ## Bookkeeping for businesses in Illinois Illinois anchors the Midwest's manufacturing and logistics networks, with Chicago's rail yards, trucking terminals and O'Hare cargo operations moving freight across the country every day. A deep bench of law firms, agencies and professional services fills out the Loop, while downstate Illinois still runs on manufacturing and agriculture. Property taxes run high relative to income tax, which is a flat rate statewide. Combined sales tax rates climb well above 10% in parts of Chicago once city, county and regional transit taxes stack on top of the state rate. Illinois bookkeeping needs to separate these layers cleanly, especially for any business selling across multiple counties. Central Time (CT). Our US team works 8am to 8pm ET, so every CT business hour is covered live. ## Illinois tax and compliance notes ### Flat personal income tax Illinois charges a flat 4.95% personal income tax rate regardless of income level, which simplifies withholding calculations compared to states with tax brackets. Corporations pay a separate flat corporate income tax plus a personal property replacement tax. ### Layered sales tax in the Chicago area The state sales tax rate is 6.25%, but Chicago layers on city, county and regional transit taxes that push the combined rate above 10% in some areas, among the highest in the country. Retailers need the correct combined rate applied by location. ### No local income tax outside Chicago business taxes Illinois does not generally impose local income taxes, but Chicago applies its own business-related taxes and fees on top of state requirements. Payroll otherwise follows standard state withholding tables. General notes, not advice. Filing is done by you, your CPA, accountant or registered agent; we prepare the workings. ## Industries we serve in Illinois - **[Manufacturing](https://ledgerbpo.com/industries/manufacturing/)** Illinois's deep manufacturing base needs cost of goods sold and inventory tracked accurately across supplier and customer relationships. - **[Trucking and logistics](https://ledgerbpo.com/industries/trucking/)** Chicago's position as a national rail and freight hub means trucking companies need load-level reconciliation against fuel and driver pay. - **[Law firms](https://ledgerbpo.com/industries/law-firms/)** Chicago's concentrated legal market needs trust accounting kept strictly separate from firm operating funds every month. - **[Agencies](https://ledgerbpo.com/industries/agencies/)** A strong base of marketing and consulting agencies in the Loop needs project billing reconciled against client retainers. - **[Property management](https://ledgerbpo.com/industries/property-management/)** Chicago's dense high-rise rental market needs owner statements and security deposit trust accounts reconciled unit by unit. ## Software Illinois businesses use - [QuickBooks Online](https://ledgerbpo.com/software/quickbooks-online/) - [Xero](https://ledgerbpo.com/software/xero/) - [NetSuite](https://ledgerbpo.com/software/netsuite/) - [Gusto](https://ledgerbpo.com/software/gusto/) - [Bill.com](https://ledgerbpo.com/software/bill-com/) - [All 50 platforms](https://ledgerbpo.com/software/) ## Services for Illinois businesses - [Bookkeeping](https://ledgerbpo.com/services/bookkeeping/) - [Invoicing and billing](https://ledgerbpo.com/services/invoicing-and-billing/) - [Accounts receivable](https://ledgerbpo.com/services/accounts-receivable/) - [Accounts payable](https://ledgerbpo.com/services/accounts-payable/) - [Bank reconciliation](https://ledgerbpo.com/services/bank-reconciliation/) - [Month end close](https://ledgerbpo.com/services/month-end-close/) - [All 84 services](https://ledgerbpo.com/services/) ## Frequently asked questions ### Do you have an office in Illinois? No, LedgerBPO does not have a client-facing office in Illinois. We are the accounting and billing division of SS Support Network LLC, registered in Vancouver, Washington, with a second office in Pakistan that supports our US client hours. Your dedicated accountant works remotely inside your own software on your Illinois schedule. ### Do you calculate our Illinois flat income tax and Chicago sales tax? We keep the bookkeeping and taxable sales tracking current so your CPA can calculate the flat Illinois income tax and file accurate Chicago-area sales tax returns. Your CPA or a registered preparer reviews and submits every filing; we provide preparation support only. ### Can you work with a Chicago manufacturer or logistics company? Yes, we support Illinois manufacturers and logistics companies with inventory costing, accounts payable and load-level reconciliation inside the software you already use. Your dedicated accountant tracks margin by product or route so you see profitability before month end, not after. ## Nearby - [Chicago](https://ledgerbpo.com/locations/us/chicago/) - [Indianapolis](https://ledgerbpo.com/locations/us/indianapolis/) - [Milwaukee](https://ledgerbpo.com/locations/us/milwaukee/) - [All locations](https://ledgerbpo.com/locations/) Next step ## Books closed. Invoices paid. Every month. Tell us what is going on with your books or billing. You will hear from a named person within 1 business day, with a custom quote and a plan for the first close. - Reply from a named person within 1 business day - No setup fee, month-to-month - Your software, your data, no lock-in Start with a custom quote [Get a custom quote](https://ledgerbpo.com/get-a-quote/) [Book a 20-minute call](https://ledgerbpo.com/book-a-call/) Or call [+1-657-777-0006](tel:+16577770006) during US, UK or Australian business hours. --- Source: https://ledgerbpo.com/locations/us/illinois/ · Contact: https://ledgerbpo.com/contact/ · Full site map for agents: https://ledgerbpo.com/llms.txt