Illinois Per Diem Rates 2025. The per diem rates shown here for lodging and m&ie are the exact rates set by the gsa for the month of december, 2024. Federal per diem rates consist of a maximum lodging allowance component and a meals and incidental expenses (m&ie) component.

Federal per diem rates consist of a maximum lodging allowance component and a meals and incidental expenses (m&ie) component. The tax tables below include the tax rates, thresholds and allowances included in the illinois tax calculator 2025.