Employee's withholding certificate. Form W-4 helps employers withhold the correct federal income tax from employee pay.
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Use Anvil Workflows to transition from paper and PDF-based processes to painless and flexible online workflows via API or our online workflow builder.Learn more
Have an existing PDF form that needs to be filled out? The PDF filling API allows you to send JSON data to a PDF template and recieve a filled out PDF in response.Learn more
E-signatures make the world go around. Anvil has designed a simple yet extremely flexible e-sign API for collecting legally binding e-signatures and embedding them in your app.Learn more