Last verified: October 30, 2026
Ontario will cap the monthly Ontario Electricity Rebate at 1,200 kilowatt-hours (kWh) for residential customers starting May 1, 2027. The province announced the limit in its 2026 Fall Economic Statement on October 29.
The practical effect is simple: a household using 1,200 kWh or less in a month should remain within the announced limit. A household using more will no longer receive the rebate on all of its consumption. Small businesses and farms are excluded from this change.
Ontario says the average residential customer uses about 700 kWh a month, so the cap is well above the provincial average. It may still matter to homes with electric heating, electric-vehicle charging, central air conditioning, pools, hot tubs or unusually high occupancy.
What Ontario announced
The province’s official Fall Economic Statement says the monthly OER credit “will be capped at 1,200 kWh” for residential customers, effective May 1, 2027. It also says small businesses and farms are excluded and that additional credits aimed at Northern and rural residents will continue.
The announcement does not say the OER is ending. It introduces a monthly consumption ceiling for residential accounts. It also does not say that electricity service stops or that a penalty rate applies after 1,200 kWh. The change concerns how much consumption can receive the rebate.
Ontario Electricity Rebate cap examples
The table below shows only how much monthly usage falls above the announced cap. It is not a dollar estimate.
| Monthly residential use | Usage above 1,200 kWh cap |
|---|---|
| 700 kWh | 0 kWh |
| 1,000 kWh | 0 kWh |
| 1,200 kWh | 0 kWh |
| 1,500 kWh | 300 kWh |
| 2,000 kWh | 800 kWh |
For example, 1,500 kWh minus the 1,200 kWh ceiling leaves 300 kWh above the limit. That arithmetic does not mean the bill rises by 300 times one fixed price. Ontario customers may be on Time-of-Use, Ultra-Low Overnight, Tiered or retailer pricing, and delivery charges vary by utility.
Why there is no reliable dollar estimate yet
As of October 30, Ontario has announced the cap in its fiscal statement, but the detailed cap calculation is not yet reflected in the consolidated OER regulation available through e-Laws. Until implementing rules or utility guidance are published, a precise dollar-loss estimate would require assumptions the province has not confirmed.
The rebate percentage is also changing before the cap begins. It remains 23.5% through October 31, 2026. Under Ontario Regulation 328/26, it becomes 15.7% on November 1, 2026. The Ontario Energy Board says the 15.7% rebate will lower the bill of a typical 700 kWh residential customer by about $23 a month, although individual results vary by usage and utility.
That $23 figure describes a typical bill under the November 2026 rate. It is not an estimate of the May 2027 cap’s cost. The rebate percentage in force in May 2027 and the final method for applying the cap will determine the actual impact.
Who should check their past bills
Most customers do not need to guess. Electricity bills normally state the number of kWh used in each billing period. Review at least 12 months because heating and cooling can make consumption highly seasonal.
- Electrically heated homes: winter demand can be much higher than the annual monthly average.
- EV households: charging adds to the home’s metered consumption, even when it happens overnight at a lower energy price.
- Homes with pools or central air: summer pumps and cooling can create a seasonal peak.
- Multi-generational or larger households: hot water, laundry, cooking and equipment use can accumulate.
- Seasonal properties: a low annual total can still include one or two high-use months.
Do not compare the 1,200 kWh OER cap with the Tiered-price threshold as though they were the same rule. Under the OEB’s November 1, 2026 prices, the residential Tier 1 threshold is 1,000 kWh a month in winter and 600 kWh in summer. Those thresholds decide which regulated electricity price applies. The new 1,200 kWh ceiling decides how much residential consumption can receive the provincial rebate.
What households can do before May 2027
- Find your highest-use month. Use actual kWh, not the dollar total, because rates and charges can change.
- Mark every month above 1,200 kWh. Subtract 1,200 to see the amount potentially outside the rebate.
- Wait for implementation details before assigning a dollar value. Your distributor should eventually explain the calculation on bills.
- Check whether a different price plan fits your usage. The OEB lets eligible customers choose among Time-of-Use, Ultra-Low Overnight and Tiered pricing. A plan switch does not remove the rebate cap, but it may change the electricity charge.
- Look for targeted support. Ontario says Northern and rural credits will continue. Low-income customers may also qualify for the Ontario Electricity Support Program or emergency assistance; eligibility is separate from the OER cap.
When planning the rest of the household budget, avoid treating every cost increase as identical. PaycheckGuru’s September 2026 inflation breakdown shows why actual bills are more useful than applying one national percentage to every expense.
Bottom line
The announced Ontario Electricity Rebate cap should not affect a residential month at or below 1,200 kWh. It can reduce the rebate for higher-use months beginning May 1, 2027. Small businesses and farms are excluded.
The missing piece is the exact bill calculation. Ontario has announced the threshold and date, but customers should wait for the implementing rules and distributor guidance before relying on a dollar estimate. PaycheckGuru will review this article when those details are published.
Sources: Ontario Ministry of Finance, 2026 Ontario Economic Outlook and Fiscal Review, released October 29, 2026; Ontario Energy Board, electricity-price announcement dated October 16, 2026; Ontario Regulation 328/26, filed October 9, 2026; OEB electricity-rate page. Usage examples calculated by PaycheckGuru from the announced 1,200 kWh threshold. Last verified October 30, 2026. Next review: when Ontario publishes the cap’s implementing regulation or utility billing guidance.