Resources

Guides and tools for Ontario small business owners.

In-depth articles and free calculators built around the questions I hear most from clients. Every guide and tool is written or reviewed by Devin O'Brien, CPA, CMA, using current Ontario tax rates and CRA rules.

Guides & articles

Long-form explainers on the decisions that actually move the numbers for Ontario owners.

Coming soon

Salary vs. Dividends in Ontario: What's the Right Mix for 2025?

A plain-language walkthrough of how to decide how much of your compensation should be salary versus dividends, using current Ontario rates and real examples.

Devin O'Brien, CPA, CMA

Coming soon

Should I Incorporate My Business? A Plain-Language Guide for Ontario Owners

When incorporation actually pays off, when it doesn't, and what the ongoing costs and obligations really look like.

Devin O'Brien, CPA, CMA

Coming soon

The HST Threshold Explained: What Ontario Business Owners Need to Know

The $30,000 threshold, the 29-day registration window, and when voluntary registration is worth it.

Devin O'Brien, CPA, CMA

Coming soon

Why Your Business Is Profitable But You're Always Short on Cash

The four most common reasons profit and cash don't line up — and the simple forecast that makes it obvious.

Devin O'Brien, CPA, CMA

Coming soon

The 10 Most Overlooked Tax Deductions for Ontario Small Business Owners

Real deductions owners routinely miss — from home office to vehicle log rules to the tax treatment of professional development.

Devin O'Brien, CPA, CMA

Coming soon

How to Value a Small Business in Ontario: What Buyers Actually Look For

The three common valuation approaches, the multiples buyers typically pay, and the pre-sale planning that actually moves the number.

Devin O'Brien, CPA, CMA

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Free calculators & tools

Interactive tools using current Ontario tax rates. Free to use, no email required.

Devin O'Brien, CPA, CMA — founder of DVO Financial Consulting, Guelph Ontario

Written and reviewed by Devin O'Brien, CPA, CMA

Founder, DVO Financial Consulting · Guelph, Ontario

15+ years in financial operations and small business advisory.

Learn more about Devin →