US sales tax, payroll, and IRS filings — production ready

The US has no federal VAT. Instead, 45 states and Washington DC levy sales tax through approximately 12,000 distinct jurisdictions — each with its own rate, its own exemptions, and its own filing schedule. After the 2018 Wayfair Supreme Court decision, businesses that exceed $100,000 in annual sales or 200 transactions in any state must collect that state's sales tax, regardless of physical presence. For a growing business, this creates an expanding compliance footprint that is nearly impossible to manage manually.

On the payroll side, employers must withhold 6.2% Social Security and 1.45% Medicare (FICA) from every employee's wages, match those amounts as the employer's share, and remit them on a schedule determined by the IRS. Quarterly Form 941 reconciles FICA deposits. Annual W-2s and 1099-NECs for contractors are due by January 31. State income tax withholding applies in all but nine states. The Affordable Care Act adds a layer of ACA compliance — full-time equivalent tracking and annual 1095-C / 1094-C filing.

WiseLinkNow's US compliance is built across five phases: sales tax via TaxJar, federal payroll withholding, IRS form filing via TaxBandits, state withholding for all 50 states, and ACA compliance. All five phases are production ready. Without API credentials, the system runs in simulation mode with clearly labelled representative outputs — so you can verify the logic before going live.