Setting the Table Amount When One Parent's Pay Isn't Steady

The situation

Tom and Wilson separated after twelve years together, with two children remaining in Tom's day-to-day care in Barrie. Tom is a professional engineer with a steady salary. Wilson works as a pharmacist, with a base salary topped up by a variable bonus tied to the pharmacy's performance. Between them, household income before the separation had run somewhere in the $150,000 to $300,000 range, with home equity and some investment accounts built up over the marriage.

Tom came to Treadstone Law assuming child support would be the most contentious part of the separation. He had read enough online to know that in Ontario, child support for a parent with the majority of parenting time is usually calculated using the Child Support Guidelines — a set of rules that set out a specific dollar amount, called the table amount, based on the paying parent's income and the number of children. What he had not expected was how much of the real disagreement would end up living outside that table amount entirely.

Tom's day-to-day routine with the children had already settled into a workable pattern by the time he came to see us — school drop-offs, activity schedules, the ordinary logistics of raising two kids largely on his own during the week. What he wanted from the legal process was certainty: a clear, defensible number for support and a written agreement that would not need to be revisited every time Wilson's bonus season came around.

What the table amount could and couldn't settle

The table amount is not something two parents negotiate the way they might negotiate the sale price of a house. Once a paying parent's annual income is established, the Guidelines table — organized by province and number of children — produces a fixed monthly figure. There is no room to argue the number down because the paying parent feels it's too high, and no room to argue it up because the receiving parent feels it's too low. The formula is the formula.

That should have made things simple. It didn't, because before any table amount can be set, the parents have to agree on what the paying parent's income actually is — and Wilson's income was not a single clean number. The base salary was easy to document. The bonus was not: it had varied by tens of thousands of dollars from one year to the next depending on the pharmacy's results, and Wilson's position was that only the most recent, lower bonus year should count going forward.

Tom's team gathered several years of Wilson's income documentation — pay stubs, notices of assessment from the Canada Revenue Agency, and T4 slips — to build a picture of the bonus over time rather than relying on a single year. Under the Guidelines, when a parent's income fluctuates, it is common practice to average recent years to arrive at a more representative figure, rather than anchoring to whichever year happens to be most favourable to one side. That average became the income figure used to look up the table amount, and once it was set, that part of the file effectively closed itself. Neither parent could reasonably keep arguing over a number the Guidelines table produced automatically.

Where the real negotiation lived was in what the table amount does not cover.

What we did

1. Confirmed Wilson's income using multiple years of documentation. Rather than accepting Wilson's proposed single-year figure, we requested notices of assessment and pay records covering several years, which supported averaging the bonus instead of using the lowest recent figure.
2. Ran the table amount using the averaged income. With income agreed, the monthly table amount followed directly from the Guidelines table for two children — a step that took far less time than the income dispute that preceded it.
3. Identified the costs the table amount doesn't include. The table amount is meant to cover ordinary day-to-day expenses like housing, food, and clothing. It does not cover items the Guidelines treat separately as special or extraordinary expenses — things like competitive extracurricular activities, private tutoring, or significant medical or dental costs beyond what insurance covers. One of the children, Winnie, competed in figure skating at a level with substantial coaching and ice-time fees; the other was receiving regular academic tutoring.
4. Proposed a proportional sharing formula for those extra costs. Rather than splitting extracurricular and tutoring costs equally, we proposed splitting them in proportion to each parent's income — consistent with how the Guidelines generally treat special expenses, and more defensible than an even split given the real gap between Tom's and Wilson's earnings.
5. Built in a review mechanism tied to Wilson's bonus. Because Wilson's income was genuinely variable rather than fixed, we negotiated a yearly income disclosure exchange so the table amount and the proportional split could be recalculated each year rather than locked in against an income figure that might not hold.
6. Drafted the agreement to separate the two categories clearly. The final agreement kept the table amount and the special expense arrangement as distinct, clearly labelled provisions, so neither parent could later argue that one was meant to absorb the other.

The outcome

The file resolved as a genuine compromise rather than a clean win for either side. Wilson did not succeed in anchoring the table amount to the lowest recent bonus year — the averaged figure held, and the table amount was set accordingly. But Tom also did not get everything he initially proposed for the extracurricular costs: he had hoped Wilson would cover a fixed dollar amount each year regardless of income changes, and instead the parties settled on the proportional formula tied to updated income, which shifts a little each year rather than staying static.

For Winnie's figure skating and the other child's tutoring, the proportional split meant Wilson, with the lower income of the two, paid a smaller share than Tom of costs that could run to several thousand dollars a year between the two activities combined. Both parents kept receipts and the agreement specified how reimbursement requests would be handled, cutting down on the kind of ongoing dispute that special expenses often generate when the mechanics aren't spelled out.

The annual income exchange has already been used once since the agreement was signed, when Wilson's bonus came in lower than the averaged figure. Rather than reopening a fight, the parties recalculated the table amount using the process already built into the agreement — which was the point of including it.

Tom told us afterward that the outcome was not what he had pictured when he first walked into our office expecting a fight over the table amount itself. The real value of the file, in his words, was not any single number but the fact that he and Wilson now had a mechanism for handling changes in income and in the children's activities without having to renegotiate from scratch each time, or guess at what was fair.

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