California counties charge documentary transfer tax of $0.55 for each $500 of value, or fraction of $500 — $1.10 per $1,000. It applies when the consideration is over $100, not counting a lien or loan that stays on the property after the sale. Some cities add their own transfer tax. The county recorder collects the tax when the deed is recorded; escrow or the title company can confirm the local rate, taxable amount, and whether an exemption applies to a particular transfer.
A city may take half of the county rate as its own share, credited against the county tax, so the combined rate usually stays at $1.10 per $1,000. Some cities add a larger tax. Have escrow or the title company confirm any city tax for the property and how the sale agreement allocates the cost.
When you sell to us, we pay the closing costs, including the county documentary transfer tax and any city transfer tax.
That closing-cost promise does not pay your mortgage, liens, back taxes, or share of current property taxes; those are separate items in the closing figures.
Sources: California Revenue and Taxation Code §11911, §11912, and §11931.