Visit the Ministry of Finance Tax Office in London

Ministry of Finance representatives in London are available by appointment only. If you need to meet with a ministry representative to discuss your tax issue(s), please call 1 866 ONT-TAXS (1 866 668-8297).

Tax returns, payments (no cash please) and other documents for the tax and benefit programs are accepted in the drop box provided. You can find the drop box inside the building on the 4th floor to the left of the main reception area (available during business hours), or outside the building to the east of the main entrance (available 24 hours a day).

Address

Ministry of Finance
130 Dufferin Avenue, Suite 400
London ON  N6A 6G8

Hours of Service

  • 8:30 a.m. to 5:00 p.m.
  • Services are not available on statutory holidays
  • Drop box is accessible 24 hours

Parking

Meter parking is available.

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