Free tool
Commission split calculator, cap included
What you actually keep on a deal, after the split, the brokerage cap and the transaction fee — plus the deal of the year your split flips on. No login, nothing to download.
Why most split calculators are wrong by March
A flat split is right until it isn’t. Almost every calculator in this category multiplies the commission by your split and stops there, which matches your statement for the first few deals of the year and then quietly diverges from it — because the cap means the brokerage stops taking a share partway through, and the deal that crosses the cap is paid at two rates at once.
The practical consequence is that agents underestimate the back half of a strong year and overestimate the front half. If you are deciding whether to take a deal, negotiate a plan or change brokerages, the flat number is the wrong one to decide on.
Questions
What is a brokerage cap?
It is the maximum the brokerage will take from you in a year on the split. Once you have paid it, your split flips — later commissions come to you in full, usually still less any per-deal fee. It is the single biggest reason a flat-split calculation stops matching your statement partway through a good year.
Why does my effective split not match the one on my paperwork?
Because the transaction fee comes off your side after the split, and because the cap changes the split partway through the year. A 70% agent on a $12,000 commission with a $395 fee is really keeping about 66% on that deal — and 97% on a deal after the cap.
How does the deal that crosses the cap get paid?
At both rates. The brokerage takes only what is left of the cap, and the rest of that commission is yours. This calculator handles that single deal correctly, which is where most of the arithmetic errors in this category happen.
What if my brokerage does not cap?
Set the cap to 0 and the calculation runs as a straight split for the whole year. The cap section disappears, because there is no flip to show you.
Does this handle a graduated or tiered split?
This one models a single split plus a cap, which covers the most common arrangement. A graduated plan that steps at several volume thresholds is a different shape and is not modelled here — take the cap result as the closest approximation.
Is this the commission or my take-home?
It is what reaches you before tax and before your own business expenses — marketing, licence and board fees, your car. Treat the figure as the top of your income rather than the bottom.
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Track the real number, deal by deal
ProspectKeeper records the price, rate and side on every deal and tracks the commission against your yearly goal as they close.