The Windfall Elimination Provision Is Gone: What Cross-Border Retirees With CPP and Social Security Get Back

Short version: U.S. Social Security for Canadian Residents

The Windfall Elimination Provision was one of the corridor's quietest recurring losses: a retiree who had worked in both countries collected CPP from Canada and a Social Security benefit from the US that was smaller than their US earnings record alone would have produced, because the provision treated the CPP as a pension from non-covered employment and adjusted the Social Security formula downward. What the provision did: Social Security's benefit formula replaces a higher percentage of low lifetime earnings than of high ones (the progressive bend-point structure), and a worker with a short US earnings record looks, to the formula, like a low lifetime earner — so a person with fifteen years of US earnings and twenty-five of Canadian earnings received the generous low-earner replacement rate on their US record even though their total career was not low-earning; the provision corrected for this by substituting a lower first-bend-point percentage (40% instead of 90%, phased by years of substantial US earnings) for anyone receiving a pension from work not covered by Social Security — which included foreign social security pensions like CPP — with the reduction capped at half the non-covered pension and eliminated for those with thirty or more years of substantial US covered earnings. The typical cross-border effect was a reduction of a few hundred dollars a month in the US benefit, computed by the Social Security Administration once the CPP was reported (as claimants are required to do), and the Government Pension Offset applied a parallel reduction to spousal and survivor Social Security benefits for those receiving a non-covered government pension. The repeal: the Social Security Fairness Act, signed in January 2025, repealed both provisions for benefits payable for months after December 2023 — so benefits for January 2024 onward are computed without the reduction, current beneficiaries' monthly amounts were increased, and retroactive payments covering the months from January 2024 to the adjustment were issued during 2025. What repeal restores for the cross-border retiree: the full Social Security benefit their US earnings record produces under the ordinary formula, regardless of the CPP they also receive — for a retiree who had been reduced by the provision, an increase in the monthly benefit and a lump sum for the retroactive months; for a retiree who deferred claiming Social Security in part because the provision made it less valuable, a recomputation of the claiming decision on the restored numbers; and for spouses and survivors, the end of the offset on their derived benefits. Who was affected and should check: anyone receiving both CPP (or QPP) and US Social Security whose benefit was reduced (the reduction appears in the benefit computation, and the SSA's notices in 2025 informed affected beneficiaries), anyone who was told the provision would apply and adjusted their plans, and anyone who never applied for a US benefit because the provision made it seem not worth the paperwork — the last group being the one for whom repeal changes the most, because a US benefit that was reduced to a small amount may now be worth claiming. What still applies to a dual-country benefit: the totalization agreement's rules for combining coverage (the totalization guide covers how a worker short of the US forty-quarter minimum can qualify using Canadian credits — with the benefit prorated to the US-covered share); the treaty's taxation rules (Social Security paid to a Canadian resident is taxable only in Canada, with 15% exempt so 85% is included; CPP paid to a US resident is taxable only in the US under the social security article, with the US taxing it as it would a Social Security benefit); the earnings test for those claiming Social Security before full retirement age while still working; and the ordinary early-claiming reduction and delayed-retirement credits (the CPP-and-Social-Security timing guide). The action items after repeal: confirm the SSA has recomputed your benefit and issued the retroactive payment (the 2025 notices, the my Social Security account, or a call to the SSA); if you never applied because the provision made it seem pointless, run the numbers again — apply if eligible, since benefits are payable retroactively only for a limited period from application; if you deferred claiming, re-run the timing analysis on the unreduced amounts; and update your tax planning — a larger Social Security benefit is more income taxable under the treaty's rules in your country of residence, and the Canadian resident's 85% inclusion and the US resident's provisional-income computation both move with it.

Key takeaways

• The provision reduced Social Security for anyone also receiving CPP: a lower first-bend-point percentage (40% instead of 90%, phased by years of substantial US earnings) capped at half the non-covered pension — typically a few hundred dollars a month for cross-border retirees.
• Repeal is complete and retroactive to January 2024: the Social Security Fairness Act ended both the Windfall Elimination Provision and the Government Pension Offset; monthly benefits were increased and retroactive lump sums paid during 2025.
• What's restored: the full benefit the US earnings record produces under the ordinary formula, regardless of CPP; the end of the offset on spousal and survivor benefits; and a reason to re-run claiming decisions made under the old rules.
• Check three things: that the SSA recomputed your benefit and paid the retroactive amount; whether a US benefit you never claimed is now worth applying for; and whether a deferral decision should change.
• What still applies: totalization proration for those qualifying with combined credits, the treaty's residence-based taxation of Social Security and CPP, the earnings test before full retirement age, and the ordinary early and delayed adjustments.
• The tax echo: a larger benefit is more taxable income in the country of residence — 85% included for the Canadian resident, the provisional-income computation for the US resident — update the plan.

The post-repeal review

Pull your SSA benefit statement and confirm the current monthly amount reflects no provision reduction and that the retroactive payment for January 2024 onward was received. If you have US quarters (or totalization-combinable credits) and never applied, request a benefit estimate on the unreduced formula and evaluate claiming. If you are between 62 and 70 and deferring, re-run the timing analysis on the restored numbers alongside your CPP decision. Then update the tax plan in your country of residence for the higher benefit. An hour, once — and for the retirees who never applied, potentially the most valuable hour in this entire corridor.

Worked example

A retired nurse in Windsor, Canadian resident, worked twelve years in Detroit hospitals and twenty-six in Ontario. Before repeal: her Social Security benefit, computed on her US record, was about US$1,100 a month under the ordinary formula, reduced by the provision (twelve years of substantial US earnings, well short of thirty) to about US$720 once her CPP was reported; she had accepted the reduced amount for four years. After repeal: the SSA recomputed her benefit to the full US$1,100 or so, paid a retroactive lump sum covering January 2024 to the adjustment date (about US$6,000), and her monthly deposit rose accordingly. Her tax plan: as a Canadian resident, her Social Security is taxable only in Canada with 15% exempt — 85% of the higher benefit is now included on her T1, a modest increase in Canadian tax against a large increase in income. Her brother-in-law's case is the bigger one: nine years of US earnings in the 1990s, a full Ontario teaching career, and a decision decades ago never to apply for Social Security because a colleague told him the provision would reduce it to almost nothing. He has the forty quarters (nine years falls short of ten — but the totalization agreement lets his Canadian credits fill the eligibility gap, with the benefit prorated to his US-covered share). Post-repeal estimate: a prorated but unreduced benefit of a few hundred dollars a month, payable for life, with limited retroactivity from his application date — a benefit he had written off for twenty years on the strength of a rule that no longer exists.

Official sources

The Social Security Fairness Act, "signed into law on January 5, 2025," ended the Windfall Elimination Provision and the Government Pension Offset "for benefits payable for months after December 2023, meaning the rule no longer applies to benefits payable for January 2024 and later"; affected beneficiaries received increased monthly benefits and retroactive payments during 2025. — Social Security Administration, Social Security Fairness Act, https://www.ssa.gov/benefits/retirement/social-security-fairness-act.html

The Social Security Administration explains that the totalization agreement between the United States and Canada helps people who have worked in both countries qualify for benefits by combining credits, and assigns coverage so that workers pay social security taxes to only one country for the same work. — Social Security Administration, Totalization Agreement with Canada, https://www.ssa.gov/international/Agreement_Pamphlets/canada.html

Practitioner note

The provision's repeal is the rare piece of cross-border news that is purely good, and its main casualty is inertia: retirees who accepted a reduced benefit for years and, more importantly, those who never applied because the reduction made the paperwork seem pointless. Our post-repeal review is an hour — confirm the recomputation, revisit the never-applied cases with totalization credits in hand, re-run any deferral decision — and it has produced lifetime benefits for people who had filed the whole question under 'not worth it' in the 1990s.

See also: Browse every cross-border tax topic guide, organized by situation.

Next step

Fairlight prepares the post-repeal benefit review — confirmation of the SSA recomputation and retroactive payment, eligibility and estimate for never-claimed US benefits including totalization-combined credits, re-run of claiming timing, and the tax-plan update in the country of residence. See cross-border pricing or book a call.