Connect with a Ministry of Finance Tax Office
Learn how to connect with a tax office representative if you need help with a personal tax or business tax related issue.
Connecting with a tax office representative
Ministry of Finance Tax Office representatives 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).
Contact us by phone
Toll free: 1-866-ONT TAXS (668 8297)
Teletypewriter (TTY): 1-800-263-7776
Contact us online
Consider completing your transaction online. Visit the following pages for more information:
- International Fuel Tax Agreement: ontario.ca/IFTA
- Employer Health Tax: ontario.ca/EHT
- Land Transfer Tax: ontario.ca/LandTaxes
- Estate Administration Tax: ontario.ca/estateadmintax
- Other matters: ontario.ca/finance
Contact us in writing
Ministry of Finance
33 King Street West
PO Box 625
Oshawa ON L1H 8H9
Visiting a tax office in-person
You can visit the following locations by appointment only.
Tax returns, payments (no cash please) and other documents for the tax and benefit programs are accepted in person during business hours.
| Location | Address | Hours (by appointment only) | Parking |
|---|---|---|---|
Hamilton | Ministry of Finance |
| Meter parking is available. |
London | Ministry of Finance |
| Meter parking is available. |
| Oshawa | Ministry of Finance 33 King Street West Oshawa ON L1H 8H5 |
| Meter parking is available. |
Ottawa | Ministry of Finance |
| Meter parking is available. |
Thunder Bay | Ministry of Finance |
| Free and meter parking is available. |
Toronto | Ministry of Finance |
| Meter parking is available. |
Windsor | Ministry of Finance |
| Free parking is available. |
Ontario Corporations Tax
The Tax Offices will accept Ontario Corporations Tax (CT) payments and returns for tax years ending before January 1, 2009 in the drop boxes provided. The ministry cannot accept any CT payments and returns for tax years ending after December 31, 2008. All payments and returns for harmonized years must be sent to the Canada Revenue Agency (CRA).
Other taxes
Please contact the CRA at 1 800 959-5525 or 1 800 665-0354 for teletypewriter (TTY) to make enquiries relating to Ontario corporate income tax, corporate minimum tax, capital tax, special additional tax on life insurers, personal income tax and Corporations Information Act Annual Return.
Visiting a ServiceOntario centre for tax-related services
Some ServiceOntario locations are not open or are operating at reduced hours. Before you go to a ServiceOntario location, ensure the location is open and offers the service you need.
The Ministry of Finance's in-person services are available at certain ServiceOntario locations. These locations accept returns and non-cash payments for several types of tax including retail sales tax, employer health tax, land transfer tax, provincial land tax, motor fuels, tobacco, beer, wine and spirits, and other provincial taxes on behalf of the ministry. Please check that your service is available on the location’s service page before visiting.
Note: 12 ServiceOntario locations accept cash payments.
- Atikokan
- Aurora - 50 Bloomington Road
- Aylmer
- Bancroft
- Barrie – 34 Simcoe Street
- Belleville
- Blind River
- Brampton - 1 Gateway Boulevard
- Brockville
- Chapleau
- Cochrane
- Cornwall
- Dryden
- Elliot Lake
- Espanola
- Fort Frances
- Geraldton
- Goderich
- Gore Bay
- Guelph – 1 Stone Road West
- Hamilton - 119 King Street West
- Hawkesbury
- Hearst
- Huntsville
- Ignace
- Iroquois Falls
- Kapuskasing
- Kemptville
- Kenora
- Kingston – 1201 Division Street
- Kirkland Lake
- Kitchener - 30 Duke Street West
- Lindsay
- London - 100 Dundas Street
- Manitouwadge
- Marathon
- Milton – 2800 Highpoint Drive
- Minden
- Moosonee
- New Liskeard
- Nipigon
- North Bay - 447 McKeown Avenue
- Ottawa – 110 Laurier Avenue West, City Hall
- Owen Sound
- Parry Sound
- Pembroke
- Peterborough
- Rainy River
- Red Lake
- Renfrew
- Sarnia
- Sault Ste. Marie – 420 Queen Street East
- Simcoe
- Sioux Lookout
- St.Catharines – 301 St. Paul Street
- Stratford
- Sturgeon Falls
- Sudbury - 199 Larch Street
- Terrace Bay
- Thunder Bay - 435 James Street South
- Timmins
- Toronto - 47 Sheppard Avenue East
- Toronto - 777 Bay Street
- Wawa
- Whitby - 590 Rossland Road East
- Windsor - 400 City Hall Square East
ServiceOntario locations accepting cash payments
In addition, the 12 ServiceOntario locations listed below accept cash payments.
- Aurora - 50 Bloomington Road West
- Brampton - 1 Gateway Boulevard
- Hamilton - Ellen Fairclough Building, 119 King Street West
- Kitchener - 30 Duke Street West
- London - 100 Dundas Street
- North Bay - 447 McKeown Avenue, Suite 111
- Ottawa - City Hall, 110 Laurier Avenue West
- Sudbury - 199 Larch St, Suite 302
- Thunder Bay - 435 South James Street, Suite 113
- Toronto - 777 Bay Street, Lower Level
- Whitby - 590 Rossland Road East
- Windsor - 400 City Hall Square, Suite 205
Hours of Service
- 8:30 a.m. to 5:00 p.m., with exceptions at some locations
- ServiceOntario locations, hours and contact
- Services are not available on statutory holidays
Ontario Corporations Tax
ServiceOntario locations will accept Ontario Corporations Tax (CT) payments and returns for tax years ending before January 1, 2009. ServiceOntario cannot accept any CT payments and returns for tax years ending after December 31, 2008. All payments and returns for harmonized years must be sent to the Canada Revenue Agency (CRA). Please contact the CRA at 1 800 959-5525 or 1 800 665-0354 for teletypewriter (TTY).
Privacy
ServiceOntario staff, like Ministry of Finance staff, are prevented by law from disclosing confidential information, except in accordance with provisions of the tax statutes and the Freedom of Information and Protection of Privacy Act.