Lake County taxpayers paid just over $3.5 million in County Share of RTA Sales Tax in March, according to Illinois tax records.
This figure marks a significant increase over the previous month, when County Share of RTA Sales Tax collection stood just over $3.3 million.
Over the past 12 months, Lake County’s residents have collectively paid a total of $43.2 million in County Share of RTA Sales Tax.
The County Share of RTA Sales Tax, a crucial revenue stream, is primarily allocated for other taxing jurisdictions’ use.
A 2025 WalletHub study found that Illinois has the highest overall taxes in the U.S., with rates more than 50% higher than the national average. The study estimates that a median household in Illinois pays an effective tax rate of 16.58%, or about $13,099 per year.
| Month | Amount Collected | % Change from Previous Month |
|---|---|---|
| March | $3,524,110 | 5.5% |
| February | $3,341,850 | -18.3% |
| January | $4,088,220 | 11.3% |
| December 2024 | $3,673,090 | -4.4% |
| November 2024 | $3,842,360 | 10.1% |
| October 2024 | $3,491,030 | -4.8% |
| September 2024 | $3,665,920 | 1.5% |
| August 2024 | $3,612,960 | 0.6% |
| July 2024 | $3,590,220 | -4% |
| June 2024 | $3,738,250 | 13.9% |
| May 2024 | $3,281,370 | -2.2% |
| April 2024 | $3,353,960 | 51% |
| March 2024 | $2,221,303 | – |
