How it Works Features Strategies Resources Optiml lite Pricing For Advisors

All strategies

Optiml strategy

OAS Clawback Reducer

Name: Optiml
Availability: OnlineOnly
Rating: 4.9 (25 reviews)
Author: Optiml

Stop giving back your OAS. You earned it, keep it.

Protect My OAS

Try Optiml Lite free

Optiml

OAS over time

Optiml vs. no strategy

OAS preserved

Clawed back

What is this strategy?

The OAS Clawback Reducer is specifically built around one objective: protecting your OAS benefit. It is not focused on maximizing your after-tax estate or minimizing lifetime taxes. It looks at your desired after-tax income needs each year, builds your plan around that, and then structures your withdrawals so that once OAS begins, you are receiving as much of that benefit as mathematically possible. Depending on your income requirements, this strategy may eliminate clawbacks entirely, reduce them significantly, or confirm that your desired income level puts you above the threshold regardless.

What OAS Clawback Reducer actually means

One objective. Keep as much of your OAS as possible.

Like all strategies in Optiml, the OAS Clawback Reducer starts with your desired after-tax income needs each year and builds your plan around that. From there, its only focus is on structuring your withdrawals so that once OAS payments begin, you are receiving as much of that benefit as mathematically possible.

Depending on your income requirements and overall financial picture, the strategy may eliminate OAS clawbacks entirely, reduce them significantly, or in some cases confirm that your desired after-tax income simply puts you above the clawback threshold no matter what. In that scenario, Optiml gives you that clarity upfront and points you toward a strategy that better suits your situation, such as the Maximize After-Tax Estate or Maximize Retirement Spending strategies.

This strategy is not focused on your estate or lifetime taxes.

Its sole objective is to protect and maximize your OAS benefit each year, while ensuring you still receive the after-tax income you need. If your income requirements are simply too high relative to the OAS clawback threshold, this strategy will tell you that clearly.

OAS Clawback Reducer: Keeping What You Earned

Net Income

↓ Drawn Down

Below Threshold

Structured to stay below the OAS clawback threshold

RRSP / RRIF

↓ Drawn Down

Clawback Managed

Withdrawn at amounts that avoid pushing income over the limit

OAS Benefits

↑ Growing

Maximized

Protected as much as mathematically possible each year

Maximum OAS Benefit Retained

Every dollar of OAS you keep is money you earned

No two plans are ever the same. The OAS clawback outcome depends entirely on your income sources, account balances, withdrawal amounts, and the year OAS begins. Never a template.

The optimizer

Optiml does not follow an order. It tests everything.

There is no preset withdrawal order. Every possible combination of deposits and withdrawals is evaluated against your specific financial plan.

Candidate plan

optimizer

Under the hood

Minimizing OAS clawback is not about one rule. It is about the entire income landscape.

OAS clawback works as a 15-cent surcharge on every dollar of net income above the annual threshold, on top of regular income tax. What makes it particularly tricky is the one-year lag: the clawback you pay this year is determined by your prior year's net income. Every income decision in your plan casts a shadow one year forward, affecting how much OAS you keep.

The Optiml optimizer maps every combination of withdrawals, deposits, and account sequencing across your retirement years, treating each year's income as a variable with a delayed effect on the objective. Rather than applying a simple income cap each year, it finds the plan that minimizes the sum of all clawback across your entire retirement, accounting for mandatory minimums, future balance projections, and tax bracket boundaries simultaneously.

For larger registered balances, this often means drawing down slightly more in earlier low-income years, before CPP, OAS, and mandatory RRIF minimums stack up, to prevent future income from breaching the threshold. Withdrawals are never pushed into an excessively high marginal rate just to pre-deplete an account; the optimizer always weighs the tax cost of early withdrawals against the clawback benefit they protect.

t = age 81

age 80 net income

$111,300

age 81 clawback

$2,397

optimizer · OAS clawback reducer

The objective

The optimizer minimizes the total OAS clawback recovered across all years of the plan:

Minimize: ∑ₜ Clawback_t

= year index

Clawback_t

= max(0, 0.15 × (NetIncome_{t−1} − Threshold_{t−1}))

The subscript t−1 reflects the prior-year lag in the OAS clawback rules: how much clawback you pay this year depends on your net income from the year before. The optimizer accounts for this lag directly, treating each year's income decisions as having a one-year delayed effect on the objective.

Clawback_t = max(0, 0.15 × (NetIncome_{t−1} − Threshold_{t−1}))

t = age 81

NetIncome_t−1

age 80

$111,300

− Threshold_t−1

$95,323 · 2026 income year

= $15,977

× 0.15

= $2,397

max(0, ·)

= $2,397

Clawback_t

age 81

$2,397

∑_t Clawback_t

age 67 to 90 · iter 001

$33,253

Every path must satisfy one principal constraint

Your income from all sources, minus all taxes, living expenses, goals, and deposits, must net to exactly zero each year. No path is accepted that leaves you short of what you need to live.

Income − Taxes − Expenses − Goals − Deposits = 0

The clawback objective is minimized subject to this constraint. No plan is accepted that reduces your OAS clawback at the cost of leaving you without the income you need.

Income

$112,000

Income

$112,000

− Taxes

$21,500

− Expenses

$78,000

− Goals

$12,500

− Deposits

balancing…

The Optiml layer

proprietary

The formulas above are the clean version of the problem. Solving them for a real Canadian household, year by year, is where Optiml's proprietary work happens.

foresight

Looks years ahead

Forward-looking targeting sees RRIF minimums, CPP and OAS stacking up before they arrive, and draws down early only where it pays.

tax engine

Every candidate plan, fully taxed

Each plan the optimizer considers runs through Optiml's complete Canadian tax engine: federal and provincial brackets, credits, OAS recovery, and RRIF and LIF rules, every year.

optimizer

Built in-house

The Optiml optimizer is engineered in-house to solve problems with hundreds of interacting decisions reliably, settling on the plan that best meets your goal.

Worth knowing before you choose this strategy

Minimizing OAS clawback and maximizing your after-tax estate are not the same goal. By optimizing purely for OAS preservation, the optimizer may favour withdrawal patterns that reduce what you leave behind for your beneficiaries. If a strong legacy matters to you, the Maximize After-Tax Estate strategy also accounts for OAS clawback as part of its broader tax optimization, and will often deliver the same after-tax income with a larger estate, making it the superior choice for most users who want both outcomes at once.

The result is a precise, year-by-year plan: exactly how much to withdraw and from which accounts, in amounts that keep your net income at or below the clawback threshold as often as mathematically possible, without ever compromising the after-tax income you need to live.