Question 1

What is the OAS clawback?

Accepted Answer

The OAS clawback (officially the OAS recovery tax) is a federal tax that reduces or eliminates Old Age Security payments for higher-income seniors. For 2026, it applies at 15% on every dollar of net income (line 23400 on your tax return) above $95,323. The maximum amount recovered cannot exceed the total OAS you received that year, so once your income passes a ceiling that depends on your age, your OAS is fully clawed back. The recovery is administered by CRA and Service Canada coordinates the monthly reduction in your OAS cheques.

Question 2

How can I reduce my OAS clawback?

Accepted Answer

Common strategies include: pension income splitting with a spouse (transfer up to 50% of eligible pension income to a lower-income partner), drawing TFSA withdrawals instead of taxable RRIF/non-registered income above the minimum, timing capital gains across years, accelerating charitable donations into the same year as a one-time gain, using a holdco for investment income if you are incorporated, and contributing to a spousal RRSP when one spouse will likely have lower retirement income. Even a $5,000 income reduction below the threshold saves $750 in clawback.

Question 3

When does the clawback actually take effect?

Accepted Answer

There is a one-year lag. Your 2026 income (reported on your spring 2027 tax return) determines the clawback applied to OAS payments from July 2027 through June 2028. Service Canada reduces the monthly OAS deposit during that twelve-month window, so the impact shows up later than you might expect. If your income drops the following year, the reduction also drops the following July. Form T1213(OAS) can request mid-year adjustments if your income has fallen significantly.

Question 4

Is OAS taxable on top of being clawed back?

Accepted Answer

Yes, both apply. OAS is fully taxable income at your marginal federal and provincial tax bracket like any other pension income. On top of that ordinary tax, the 15% recovery tax claws back the OAS itself for income above the threshold. The combined effect is that for a senior in a 31% marginal bracket, every dollar of taxable income above $95,323 costs roughly 46% (31% income tax plus 15% clawback) before considering any provincial health-care surtaxes or premium adjustments.

Question 5

Why is OAS higher at age 75?

Accepted Answer

In July 2022, the federal government implemented a permanent 10% increase to OAS for seniors aged 75 and over. The 2026 monthly amount is $742.31 for ages 65-74 and $816.54 for ages 75+, an annual difference of $890.76. The 10% boost is automatic, no application is required. Because the boost increases your annual OAS, it also raises the income level at which OAS is fully clawed back, since the ceiling is computed dynamically as $95,323 plus the annual OAS amount divided by 15%.

Question 6

Does GIS get clawed back the same way?

Accepted Answer

No. The Guaranteed Income Supplement (GIS) uses a different and much steeper reduction. For a single senior in 2026, GIS is reduced by $0.50 for every $1 of other income above a small exemption, and is fully phased out around $22,000 of non-OAS income. For couples, the thresholds and reduction rates differ. GIS is also tax-free, whereas OAS is fully taxable. The income tests are run separately, and a senior whose OAS is being clawed back almost never qualifies for GIS at the same time.

Question 7

Can I defer OAS to reduce the clawback?

Accepted Answer

Deferring OAS up to age 70 increases the monthly benefit by 0.6% per month (7.2% per year, up to 36% at age 70) and can also help if you have high earnings in the years leading up to age 65. Many retirees delay OAS until age 70 to coordinate with a deliberate plan of drawing down RRSPs in their 60s, lowering the RRIF balance and the income required to support retirement once OAS starts at 70. Service Canada handles deferral automatically: if you do not apply at 65, OAS starts later with the corresponding increase.

Question 8

How is the full-clawback ceiling calculated?

Accepted Answer

The ceiling is the income level at which the 15% clawback equals 100% of the OAS you receive. The formula is: threshold + (annual OAS / 0.15). For 2026 at age 65-74: $95,323 + ($8,907.72 / 0.15) = $95,323 + $59,384.80 = $154,707.80. At age 75+: $95,323 + ($9,798.48 / 0.15) = $95,323 + $65,323.20 = $160,646.20. This calculator computes the ceiling dynamically so that if OAS amounts change, the result remains accurate without code edits.

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