How Professionals Choose the Right Tax Rate for Your Net Family Property - Part 2
- Paul Beck
- Jul 6
- 2 min read

Once you understand the difference between marginal and average tax rates, the next question is: Which one should be used for your Net Family Property calculation? The answer depends on your financial picture, your retirement plans, and how likely you are to withdraw funds gradually versus in large amounts.
Why Many Professionals Prefer an Average or Blended Rate
Although the marginal rate is simple, it often overstates the tax people actually pay in retirement. Most individuals withdraw from their RRSPs slowly, stay in moderate tax brackets, and benefit from credits that reduce their effective tax burden. Because of this, many financial professionals use an average rate or a blended rate—something between the average and marginal rate—to better reflect real‑life outcomes.
A blended rate might fall in the 22–28% range for a typical Ontario household, though this varies widely depending on income, age, and retirement plans.
Factors Considered When Choosing a Rate
Professionals look at several elements to determine a fair and defensible estimate:
Expected retirement income from all sources
Size of the RRSP
Whether withdrawals will be gradual or lump‑sum
Your overall financial picture, including pensions and investments
The goal is not to predict the exact tax you will pay decades from now. Instead, it’s to choose a reasonable estimate that reflects how taxes are likely to be paid based on your circumstances.
Why This Matters for Your NFP
The tax rate chosen directly affects the after‑tax value of your RRSP or investments:
A higher rate lowers the value of the asset
A lower rate increases it
This can influence equalization payments and the overall division of property. Understanding the reasoning behind the chosen rate helps you feel confident that your NFP reflects a fair and realistic picture of your financial future.

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