Contact Us

Visit the Ministry of Finance Tax Office in Oshawa

Ministry of Finance representatives in Oshawa 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 person during normal business hours.


Ministry of Finance
33 King Street West
Oshawa ON  L1H 8H5

Hours of Service

  • 8:30 a.m. to 5:00 p.m.
  • Services are not available on statutory holidays


Meter parking is available.

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