A taxpayer who converted an IRA funded by deductible contributions to a Roth IRA in 2017 has until October 15, 2018, to undo it. This means recharacterizing the new account as a traditional IRA. However, conversions in 2018 and beyond cannot be undone. The Tax Cuts and Jobs Act of 2017 ended this opportunity.
An amount taken from income as a prepayment of an individual’s tax liability for the year. In the case of wages, the employer withholds part of every wage payment. Backup withholding from dividend or interest income is required if you do not provide the payer with a correct taxpayer identification number. Withholding on pensions and IRAs is automatic unless you elect to waive withholding.