Mortgage broker bookkeeping: a deal ledger, not just a bank feed

Revenue exists at funding — the books should mirror your pipeline

A file that is submitted, or even approved, is not revenue; a file that funds is. The bookkeeping consequence is that a broker's revenue subledger has to be organized the way the pipeline is: one line per deal, carrying the lender, the funded volume, the basis points, and the expected gross finder's fee. When the deal funds, that line becomes a commission receivable; when the lender pays, the receivable clears against the actual deposit.

That receivable step matters because lenders pay on their own cycles, and a busy month of fundings can land in the bank one or two months later. Without a receivable ledger, a brokerage cannot tell the difference between a slow quarter and a slow-paying lender — and cannot chase a payout that simply never arrived. We build the ledger from your deal platform (Velocity, Finmo, or whatever your brokerage runs) so the books and the pipeline agree on what funded.

Splits and referral fees: gross to net has to be documented

Almost no one keeps 100% of the finder's fee. The brokerage takes its house split, co-brokered files divide the remainder, and referral fees go out to the realtor, planner, or former client who sent the deal. Each of those is a separate record: the split is the difference between gross commission and your payout, and referral fees paid to individuals are expenses that generally belong on a T4A at year end, not just a line in the bank feed.

For agents, the mirror image applies — the brokerage reports your payouts on a T4A, and your T2125 (or T2, where a corporate structure is even available) has to reconcile to it. One Ontario-specific caution we flag early: unlike realtors with PRECs, mortgage agents generally cannot have commissions paid to a personal corporation under the MBLAA framework, so talk to us before you incorporate around commission income.

Deal-level books also turn the expense side into strategy. When marketing spend, lead purchases, and CRM costs sit beside a count of funded files, cost per funded deal stops being a guess — and a broker deciding between another lead source and another assistant finally has a number to decide with.

Clawbacks and trailers: the long tail of every funded file

The deal ledger does not close when the payout lands. If the borrower pays out or refinances early, the lender claws back some or all of the commission — often netted quietly against a future payout, which is exactly how clawbacks go missing in casual books. And if you placed the file on a trailer model, the deal generates small recurring payments for years that need to be matched back to the original file to know whether the trailer choice actually paid off.

HST-exempt income changes the bookkeeping, and FSRA expects the records

Arranging a mortgage is a financial service, so broker commissions are generally HST-exempt. That sounds like a simplification but it inverts a habit: you charge no HST, and you also claim no input tax credits, so the HST you pay on rent, software, and marketing is recorded gross as part of the expense rather than parked in an ITC account. Books set up like a normal HST registrant's will be wrong in both directions.

The regulatory layer is the other reason deal-level books pay for themselves. Brokerages file an Annual Information Return with FSRA and must keep complete deal and payment records for years after closing, and referral arrangements need to be documented, not just paid. A ledger that ties every dollar to a file is FSRA-ready by construction. If your practice includes clients buying US property, the withholding and reporting questions that come with it live on our mortgage broker cross-border tax page, and the monthly process behind all of this is described on our bookkeeping services page.