Maternity leave in Canada is commonly framed as a choice between twelve months and eighteen, with the longer option described as more leave and, often, as more benefit. The figures here are those of Employment Insurance (EI) and apply to parents outside Quebec. Quebec residents are covered by the Québec Parental Insurance Plan, which is structured differently and falls outside this analysis.
The comparison is rarely made in dollars, although the 2026 benefit figures allow it to be made precisely. This analysis sets out how the options are built, what each pays at the 2026 maximum, what the headline percentages measure, and how parents outside Quebec have chosen between them.
One benefit, two schedules
“Twelve months” and “eighteen months”, the second often called extended parental leave, are not separate benefits. Each is the same maternity benefit followed by one of two parental schedules.
Maternity benefits are paid for up to 15 weeks at 55% of average insurable weekly earnings, to a maximum of $729 a week in 2026, under either option. The difference lies in the parental portion, as what Service Canada lists for each benefit option shows. Standard parental benefits pay 55% for up to 35 weeks within 52 weeks of the birth; extended parental benefits pay 33% for up to 61 weeks within 78 weeks. With the maternity weeks added, the totals are 50 and 76 weeks, the source of the “12 months” and “18 months” labels.
The choice becomes irreversible once a week of parental benefits has been paid, and parents who share must choose the same option. This analysis concerns the benefit, not the leave; job protection comes from provincial employment standards or, in federally regulated workplaces, the Canada Labour Code.
A July 2026 Statistics Canada study of mothers’ return to work describes the total financial amount of parental benefits as broadly unchanged between the two options.
What each option pays at the 2026 maximum
At 2026 maximum insurable earnings of $68,900, or $1,325 a week, Service Canada’s 2026 benefit rates give weekly maximums of $729 at 55% and $437 at 33%. The totals below are this article’s own, calculated from Service Canada’s 2026 rates and shown gross, before tax.
| Option | Weekly | Parental weeks | Parental total | With 15 maternity weeks |
|---|---|---|---|---|
| Standard | $729 | 35 | $25,515 | $36,450 over 50 weeks |
| Extended | $437 | 61 | $26,657 | $37,592 over 76 weeks |
| Difference | −$292 (−40%) | +26 | +$1,142 (+4.5%) | +$1,142 |
The 26 additional weeks carry $1,142 between them, about $44 a week. EI’s usual unpaid waiting week falls within the maternity weeks, so it affects both options equally; a temporary waiver in place since March 2025 is being extended.
Below the cap the ratio holds: a steady $50,000 salary yields about $18,510 standard against $19,356 extended, a gap of $846, or 0.88 of one week’s insurable earnings (33% × 61 = 20.13 weeks; 55% × 35 = 19.25 weeks).
The real difference appears when weekly amounts become the monthly figures a household budget is usually built around (weekly × 52 ÷ 12): about $3,159 standard against $1,894 extended, roughly $1,265 less each month.
55% of what, exactly?
Neither the rates nor the maximums describe a share of salary or a typical payment. The rate applies to average insurable weekly earnings over a claimant’s best 14 to 22 weeks, a number set by the regional unemployment rate, not to annual salary. Earnings above $68,900 are not insured, so on a $100,000 salary $729 is about 38% of gross weekly pay and $437 about 23% (this article’s arithmetic). The cap is identical in every province outside Quebec, regardless of how household costs differ between Alberta and Ontario.
The figures are also gross: EI benefits are taxable, and tax withheld at source reproduces the gap between gross and net pay on an ordinary pay stub. Unlike regular benefits, maternity and parental benefits are exempt from the high-income benefit repayment. Claimants with a child and annual net family income of $25,921 or less can receive a family supplement of up to 80% of insurable earnings, still capped at $729; it applied to 2.4% of EI claims in 2024-25.
The federal government’s annual Employment Insurance monitoring report shows what claimants actually receive. In fiscal 2024-25, when the extended maximum was $401 and then $417, extended claims carried an average weekly rate of $367, and 64.8% received the maximum. Extended benefits made up 18.8% of parental claims and 18.3% of parental benefits paid, a near-match that shows the same equivalence in the program’s own records.
The two variables that move the comparison
With EI totals near-identical, what separates the options for a household sits on top of EI: sharing weeks and employer top-ups.
Sharing raises the pool to 40 standard or 69 extended weeks, with no parent exceeding 35 or 61. At the 2026 maximum, the five extra standard weeks are worth $3,645 and the eight extra extended weeks $3,496 (this article’s arithmetic), again close to equal.
According to ESDC, employer top-ups need not be registered, are not deducted from EI up to a combined 100% of normal weekly earnings, and are excluded from EI’s published averages. The federal public service’s own top-up provisions show one documented design: for PSAC groups, standard parental benefits are topped up to 93% of weekly pay for up to 37 weeks, and extended benefits to 55.8% for up to 63 weeks. Because 55.8% is 93% × 0.6, the ratio of 33% to 55%, and the extended return-to-work obligation is 60% of the allowance period, the total stays proportional. A top-up paying a fixed percentage for fixed weeks under either option would make the totals diverge.
About one in five
Statistics Canada’s survey of recent mothers found that from 2020 to 2023, 91% of previously employed mothers outside Quebec received EI parental benefits, 70% choosing standard and 21% extended. ESDC counts extended claims at 18.8% of all parental claims in 2024-25. The populations differ (surveyed mothers versus all claimants, fathers included), yet both come to roughly one in five.
Extended take-up was 14% among mothers in Alberta against 23% in Ontario, and 17% among mothers with one child under 6 against 34% among those with three or more.
The stated reasons frame the choice as monthly income against time. Of mothers choosing standard benefits, 59% cited more money each month and 33% an earlier return to work; of those choosing extended, 77% cited staying home longer with their children and 14% unavailable or costly child care. Return-to-work rates were nearly identical (83% and 82%), but spouses claimed or expected to claim parental benefits more often under the extended option (41% against 30%). The survey years include the pandemic, which may have affected return-to-work intentions.
The same benefit, spread differently
Eighteen months is not worth meaningfully more than twelve. At the 2026 maximum, the extended option adds about $1,142 across a year and a half, set against a monthly payment roughly $1,265 lower. The extended option buys time away from work at a lower weekly rate; the standard option buys a higher weekly rate over a shorter period. That is the same trade-off mothers describe when Statistics Canada asks why they chose. The decision concerns the shape of the money, not the amount.