You're probably out of time to withhold enough from your pay for taxes in 2018
The 2018 tax overhaul limited certain itemized deductions and reduced individual income tax rates overall. If you didn’t revisit your tax withholding to reflect these changes, you could owe the IRS when you file your 2018 return next April. 1 in 5 people polled by H&R Block said they adjusted their Form W-4, a key document used to determine your income tax withholding.