January 2025 Tax Calendar. To see every tax month and tax week for the 2024/2025 tax year use our payroll tax calendar. Foreign national employees who were previously exempt from tax due to a treaty benefit, and who may be eligible for a tax treaty benefit in calendar year 2025, were notified.

Here’s a gst calendar for 2025 that highlights key important deadlines for return filing, tax payments, and more. The 2024 tax year is coming to a close, and as with any year, there’s the usual jockeying to make payments.