Short answer
Yes. The buyer’s agreement sets what the buyer owes for representation. A seller may offer to cover all, some or none of that amount. If the seller contribution is lower, the buyer may owe the shortfall unless the agreement or a later written arrangement says otherwise.
The buyer problem behind the question
The buyer budgets only the down payment and closing costs because they were told the seller normally pays. After finding the right home, the buyer learns that the offered seller contribution is lower than the amount signed in the buyer agreement.
A practical Ontario example
Illustration only: The agreement says the buyer owes a stated percentage. On a $900,000 property, the seller offers less than that commitment. Before making an offer, the buyer needs the exact dollar shortfall, HST treatment and payment timing. That amount may reduce cash available for down payment and can change mortgage qualification or the maximum safe offer.
Questions to ask before signing or acting
- What amount or formula did I agree to pay?
- What happens if the seller pays less, exactly the amount, or more?
- Can a remuneration term be negotiated in the offer?
- When is any buyer shortfall due and is HST additional?
- Has my mortgage broker included it in available closing cash?
Practical ways to protect the decision
- Require a property-specific commission calculation before writing an offer.
- Negotiate the buyer agreement or offer terms where all parties agree.
- Do not borrow the shortfall without checking the effect on debt ratios and closing funds.
What your Realtor can do, and where another professional steps in
A Realtor can explain services, representation, market evidence, offer strategy and the brokerage agreement. A real-estate lawyer interprets contractual liability, cancellation, holdover and disputed payment wording. An inspector assesses condition within the inspection scope. An appraiser supports value for the commissioning lender or client. An accountant addresses tax. Rajiv reviews mortgage qualification, closing cash, appraisal risk and the effect of new obligations. One professional should not guess at another professional’s work.
Mortgage consequences buyers often discover too late
A brokerage-fee shortfall, larger deposit, lower appraisal, new debt, changed closing date or unconditional offer can alter the financing plan. An A lender remains the first route when income, credit, ratios, property and value fit. Alternative lenders may accept a broader income or property approach at greater cost. A MIC is an institutional mortgage lender that may provide a short flexible bridge, and a private lender may also solve a timing problem. Short-term financing should not be used to make an unsuitable purchase look affordable; it needs a realistic refinance, sale or other repayment exit.
Verified public guidance
RECO says the buyer agreement must explain remuneration and how it changes when a seller covers some or all of the buyer’s brokerage fee. RECO also warns that a seller may offer nothing and the buyer’s ability to purchase can be affected.
Read the primary source. Source checked 2026-09-03. RECO regulates real-estate professionals; it does not determine a mortgage lender’s approval, income or appraisal policy.
Pressure-test the advice
Ask what could make the recommendation wrong. The answer may change if the signed scope is broader than remembered, the seller contributes less commission, another brokerage agreement overlaps, multiple representation arises, the property has an undisclosed issue, the appraisal is low or the mortgage remains conditional. Separate confirmed facts from assumptions and obtain written clarification before waiving a right or incurring a cost.
Keep these documents
- The completed RECO Information Guide and representation agreement
- Every schedule, amendment, disclosure, consent, release and written instruction
- Listings introduced, properties viewed and comparable-sale analysis
- Offer drafts, notices, deposit proof and condition documents
- Mortgage approval, appraisal conditions and closing-cash calculation
Related AskRajiv guidance
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Get the mortgage and property risks aligned
Before signing an offer, use Rajiv’s direct mortgage strategy form. Include the purchase price, property type, deadline and the concern that could affect approval or closing.
Source and review
Reviewed by Rajiv Verma, Mortgage Broker on 2026-09-03. Educational information only; not legal, real-estate, appraisal, tax or mortgage approval advice.