As mandated by the State of California Employment Development Department, an employer must file the California Employee's Withholding Allowance Certificate, Form DE 4, under certain circumstances.
As mandated by the Illinois Department of Revenue, covered employers must file the Illinois Withholding Income Tax Return, Form IL-941.
Under review in relation to the redesigned 2020 Form W-4.
The Social Security Administration has issued inflation-adjusted figures for 2018, including the Social Security taxable wage base, the earnings tests for retirees who return to work, and the Social Security benefits quarter-of-coverage requirement and cost of living adjustment (COLA).
Updated to include a penalty for rejected EFT or ACH payments of withheld taxes, effective October 1, 2017.
As mandated by the Illinois Department of Employment Security, covered employers must file the Illinois Employer's Contribution and Wage Report, UI 3/40.
HR guidance on compliance with Social Security and Medicare (FICA) taxes, payroll taxes and federal unemployment insurance (FUTA) taxes.