Deposit payroll tax for payments on Dec 13-15 if the semiweekly deposit rule applies. Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: December 20, 2017 all-day 2017-12-20T00:00:00-08:00 2017-12-21T00:00:00-08:00 ← Deposit payroll tax for payments on Jan 28-31 if the semiweekly deposit rule applies.Farmers and fishermen: Pay your estimated tax for 2017. Use Form 1040-ES. →