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OntarioBonusTaxCalc.ca — part of the calc-hq.ca network

Partnership & Advertising Inquiries

For partnership inquiries, content collaboration, or advertising on the Ontario payroll calculator network, email: partnerships@calc-hq.ca

Corrections & Rate Updates

If you believe a tax rate, bracket threshold, CPP maximum, or EI ceiling is out of date or incorrect, please email us with a reference to the official CRA or ESDC source. We update rates as soon as new T4032 tables are released. Current data reflects CRA T4032-ON and ESDC rates published for tax year 2026.

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We welcome feedback on the user experience, calculation methodology, or content accuracy. Use the partnership email above and include "Calculator Feedback" in the subject line.

What We Cannot Help With

We cannot provide personal tax advice, T1 return preparation assistance, or CRA account support. For personal tax situations, consult a qualified CPA or tax professional. For CRA account questions, contact the CRA My Account portal.