Illinois (IL) Contractor, Small Business & Property Calculators (2026)
Free interactive 2026 calculators for Illinois: epoxy flooring takeoff, concrete yardage, LLC vs. S-Corp taxes, janitorial bidding, pressure washing quotes, and landlord deposit compliance.
Illinois Epoxy Flooring Cost & Gallon Calculator
Calculate exact epoxy resin gallons, polyaspartic topcoat, flake pounds, and Illinois DIY vs. Pro installation costs using local IL labor multipliers.
Concrete & Flatwork TakeoffIllinois Concrete Slab Yardage & Cost Calculator
Estimate cubic yards of ready-mix concrete, 80-lb bag counts, rebar grid, and Illinois poured slab costs at $178/yd³ local delivery rates.
Small Business & Entity TaxIllinois LLC vs. S-Corp Tax & Filing Fee Calculator
Compare Illinois Single-Member LLC vs. S-Corp self-employment tax savings, reasonable salary splits, $150 IL filing fee, and $75 annual compliance cost.
B2B Service BiddingIllinois Commercial Cleaning & Janitorial Bid Calculator
Calculate monthly janitorial contract pricing, ISSA production rates (sq ft/hr), labor burdens, and profit margins for commercial cleaning bids in Illinois.
Exterior Trade QuotingIllinois Pressure Washing & Soft Wash Quote Estimator
Calculate house washing, concrete driveway surface cleaning, roof soft wash quotes, and sodium hypochlorite (SH) chemical costs in Illinois.
Property & Landlord ComplianceIllinois Landlord Security Deposit & Deduction Calculator
Check Illinois's $1.5-month statutory security deposit cap, 30-day return deadline, and calculate prorated carpet/paint depreciation deductions.