January 15, 2021 is the deadline for making your last payment for 2020 source deductions on time. Take a look at the amount that you should have sent in for the year, and compare it to the amount that you did send in, to see if there is a shortfall. If so, pay it by January 15, 2021 and there will be no penalty when you file your 2020 T4 summary.
There is a wrinkle this year. Back in the spring we were all allowed to take 10% off of our source deductions and hold on to it. This is called the Temporary Emergency Wages Subsidy or TEWS. This subsidy is not as popular as the CEWS – Canada Emergency Wage Subsidy. If you took advantage of TEWS you have a short payment for that amount. Not to worry about that one. That short payment is allowed.
If you have taxable benefits that are only calculated at year-end like standby charges, you might have to collect CPP on this benefit, if the employee has not already maxed out their CPP for the year.
Take a look at your T4’s for 2020 before January 15, 2021 to see if you need to increase your January 15, 2021 payment and avoid penalties.