Nathens, Siegel LLPNorth York, ON · June 29, 2026Retroactive Child Support in Ontario: How Far Back?
In Ontario, a claim for retroactive child support can generally go back up to three years from the date the recipient parent first gave the payor parent formal notice that support needs to be adjusted. However, if the payor parent engaged in blameworthy conduct—such as intentionally hiding an income increase or even failing to exchange income disclosure each year...
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