Short answer: seller closing costs are the sale's own fees — deducted from your proceeds at closing, in the same settlement that pays off your mortgage — and the only honest total is the one on a net sheet run on your home, your state, and your agreements. Here is what the lines are, which ones you can negotiate, and which numbers are not closing costs at all.
For most sellers the agent commissions are the largest line, and they are set by agreement, not by law or custom: what your listing agent earns, and what — if anything — is offered to a buyer's agent, is negotiated with you and written into the listing paperwork before the home is marketed. Two sellers on the same street can pay different totals for exactly that reason. Compare agents on the estimated net sheet they each produce for your home, not on a headline rate.
The closing itself has a cost: the title search and the title insurance policy, the fee of the title company or closing attorney who runs the settlement, and the government's charges — transfer taxes or documentary stamps and recording fees. These vary more by place than by home: some states charge no transfer tax at all, others charge meaningfully, and who customarily pays which line differs between title-company states and attorney states. Where a homeowners association exists, document and transfer fees can appear here too. None of these lines is negotiable in the way the commission is — but none should be a surprise, either; they belong on the net sheet from the start.
Property taxes, HOA dues and similar running costs are prorated to the closing day: you pay your share through the day you own the home, and the buyer takes it from there. On top of the standard lines sit only the items your signed contract created — a concession or credit you agreed to give the buyer, a repair credit, a home warranty you offered. If it is not in the contract, it is not a closing cost; if it is, it was priced into your decision to accept the offer.
Your mortgage payoff is not a closing cost — it is the separate, larger line that retires your loan at the same closing (our mortgage guide walks through how it works). The money you spend getting ready — repairs, staging, moving — is real, but it is your spending, decided by you, not a fee deducted at settlement. And any tax on a gain from the sale is settled in your tax filing, not at the closing table; that conversation belongs with a tax professional, not the settlement statement.
A Homeowner HQ estimate is not an appraisal.
Your own agent sends a monthly value update from Homeowner HQ — the estimate, labeled as an estimate, with your equity beside it — and HQ runs on Amazon AWS. Realtors and lenders use the same HQ together: homeowners stay connected to their own agent, and the monthly trend is the honest way to watch what is moving the number.
Homeowners are always free. Realtors pay $25/mo to join and lenders join at the $5/mo founding rate, at any book size, with no setup fee; sending messages inside HQ is a $100/mo unlock ($125/mo total for realtors, $105/mo total for lenders). A lender-sponsored realtor joins for $0.
Homeowner HQ is an AI-powered marketing department for agents and lenders — a relationship and revenue engine, not a homeowner database. A homeowner's record routes them back to their own agent; it is never sold and never shown to lenders.