Taxes are pay-as-you-go. This means that you need to pay most of your tax during the year, as you receive income, rather than paying at the end of the year.Request to withhold taxes. Submit a request to pay taxes on your Social Security benefit throughout the year instead of paying a large bill at tax time. If you need help completing this form, call 518‑457‑5181. Duration of withholding request. Examples of using an ITIN for federal tax purposes include filing an individual federal tax return to claim a refund or report income. Attach copies of your pay stubs for the last two months and proof of any other income. The Child Support Program automatically sends income withholding for support notices to a parent's employer when the employer is known. The Iowa IA W-4 (44-019) is available online.