Most buyers picture writing an offer as picking a number. The number matters, but in California the residential purchase agreement it sits on runs 15 or 16 pages, and buried in those pages are a half dozen other decisions that shape your risk, your timeline, and whether the seller says yes. Learning how to write an offer on a house comes down to six areas: price, the earnest money deposit, the escrow timeframe, your down payment and financing, the contingencies, and who pays for what. Work through those before you fall for a property and the offer itself becomes the easy part.
You do not have a deal until you are under contract. Plenty of things get renegotiated mid-escrow after inspections, but negotiating from inside a signed contract is a weaker position than asking up front, so the original offer should carry your real requests: credits, timeline, and the contingencies you are keeping.
Jeb's first move before writing any offer is a call to the listing agent, asking what matters to their seller. When yours is the only offer, the answer barely moves anything and the contract gets built around you. When two or more offers are coming in, that phone call shapes everything, because sellers care about price, and specifically about their net after concessions. Between two offers that land close together, the one built around what the seller actually needs usually wins. We wrote a companion piece on how sellers evaluate competing offers; this article is the buyer's side of that same table.
Straight answer: no formula nails the perfect price in any market. Your agent should be reading three things together.
One more thing on price, because buyers hand the appraiser too much power in their heads. The value of a home is what a buyer and seller agree to in an open market; the appraiser follows defined appraisal principles and exists primarily to protect the lender by confirming the property is reasonable collateral. A useful voice in the room, and nothing more.
Nearly every binding purchase contract has a dollar amount attached. Call it the earnest money deposit or the escrow deposit depending on your state; either way it is good-faith money telling the seller you are serious and not tying up five houses at once. Josh's home-flipping years, 2009 and 2010, sat at the opposite extreme: sellers had no leverage, so a buyer could tie up ten properties with $100 deposits and walk from most of them. A meaningful deposit tells a seller you cannot do that to them.
(Contract specifics in this article, like the 3% deposit custom and the 17-day contingency window, come from California's residential purchase agreement as of this episode, 12/20/2022; forms change and every state writes its own, so your agent will confirm the current versions.)
The mechanics worth knowing:
Across 450+ homes sold on Jeb's side of the transaction, we have never had a buyer lose a deposit. That record comes from one habit: never releasing a contingency until the thing it protects is actually resolved.
The escrow period runs from acceptance to keys in hand, and 30 days is the industry default, though nothing requires it. The right timeframe is a strategy decision. A seller relocating out of state on a deadline may value a fast close more than a few thousand dollars of price. A seller who has not found their next home may want a long escrow or a rent-back. Your side counts too: if your apartment lease runs three more months, a 90-day escrow can save you from paying for two roofs at once. That is why the listing-agent call happens before the offer gets written. For what happens inside those 30 days, we broke down the escrow process step by step.
The contract states your down payment and financing terms, and sellers read them as a signal of strength. That tempts buyers in hot markets to inflate the number, write 25% down when the real plan is 5%, and plan to fix it after acceptance. Do not do it. It is dishonest, and risky besides. Whatever down payment you write, you are agreeing to make, and a seller does not have to accept a change to your financing. We have both watched a seller blow up a transaction over exactly this, feeling duped by a buyer who wrote one number and financed another. Write the real number.
For most buyers, nine times out of ten, the cash is a fixed pot allocated across down payment, closing costs, and prepaids. Occasionally there is a genuine decision about holding back reserves or paying off debt instead of putting everything down; work that allocation through with your lender before you are mid-negotiation on a home you love.
Contingencies are the conditions that let you cancel and keep your deposit. Depending on the deal, the California contract carries up to seven or eight, and most states run a similar list:
The default window to complete all of it in California is 17 days. In a competitive situation, shortening those windows is one of the strongest signals you can send, and half the game is knowing what your team can actually deliver. A vanilla conventional loan with a fast lender might support a 10-day loan contingency; a specialty loan with one investor seven business days deep in underwriting will not. Shorten only what your lender and inspector can genuinely perform.
One nuance confuses buyers constantly: your loan contingency will usually be released on a conditional loan approval, before every condition is cleared. An underwriter approves the file with a list of conditions; most belong to escrow, title, and the loan team, and a handful come from you. If the open items are routine documents you know you can produce, releasing on schedule is normal. If anything on that list is genuinely in doubt, a good lender says so and you hold the contingency until it clears. Waiting for a fully cleared-to-close loan before releasing is how buyers run a week past their contract dates and turn a friendly seller hostile.
The enforcement tool behind these dates is the notice to perform: sit on your contingencies past the deadline and the seller can issue one, typically giving 48 hours to act before they earn the right to cancel. It cuts both ways; a buyer can issue one to a seller who is not delivering documents. Nobody should fire one off casually, because the party issuing it has to be ready to walk.
The contract also allocates costs, and everything in it is negotiable. Every market has customs: in California, each side typically pays its own escrow fee while the seller pays for the owner's title policy, and items like termite work and a home warranty get assigned line by line. You can move any of it in either direction, to sweeten your offer by absorbing seller costs or to ask for help, including seller credits toward your closing costs or a rate buydown. If you need a credit, ask for it in the original offer, since credit requests bolted on later usually have to ride on an inspection issue. And tell your lender about anything atypical: your cash-to-close estimate assumes a normally written contract, and agreeing to pay a title policy the other side usually covers can add four figures nobody warned you about.
The California contract gives a seller three days to respond, and most respond sooner, though a deal can absolutely come together after the deadline passes. Even a clean, complete, professional offer usually draws a counter on something: price, timelines, the escrow company, a home warranty. Two, three, even four rounds of counters is normal in a balanced market, and your 30-day escrow clock does not start until the final version is fully signed. Set your walk-away terms before round one, and remember that both sides signing means both sides got most of what they wanted.
That is the whole anatomy. To see it inside the full purchase from pre-approval to keys, the free live Blueprint workshop walks the process end to end. Write the offer with your eyes open and the contract stops being 16 pages of mystery and becomes a list of decisions you have already made.
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Find my agent →A complete offer covers price, the earnest money deposit amount, the escrow timeframe, your down payment and financing terms, contingency periods for inspection, appraisal, and loan approval, and the allocation of costs, including any seller credits you need. It should also arrive with a strong pre-approval letter. Anything that matters to you belongs in the original offer, because your leverage is highest before the contract is signed.
It depends on your state and market. In California, sellers commonly expect about 3% of the purchase price, a figure tied to the contract's liquidated damages cap, while in other states 1% or even a flat few hundred dollars is customary. The deposit is credited toward your down payment and closing costs, so it is your own money arriving early rather than an added cost. Your agent will confirm the local norm.
In California, yes, as long as your contingencies are still in place; the deposit remains refundable until you release them. Once contingencies are released, walking away puts the deposit at risk. Rules vary by state, and some, like North Carolina, make part of the deposit nonrefundable from the start, so confirm how your state's contract treats it before you write an offer.
Under California's standard contract, three days, though most sellers respond sooner and some negotiations continue productively even after the deadline passes. You can write a shorter response window into your offer, but only draw that line if you will actually walk when it passes. Buyers who threaten 12-hour deadlines and then accept a response a day later teach the other side to ignore their terms.
Shortened contingencies are one of the strongest certainty signals you can send a seller, but only shorten what your team can genuinely perform. Confirm with your lender how fast underwriting and the appraisal will realistically move for your specific loan type, and get your inspector scheduled early. Overpromising timelines you then miss damages your position more than longer, honest timelines would have.
The contract does not cancel itself. In California, the seller must first issue a notice to perform, which typically gives you 48 hours to act; only after that can the seller cancel. Communication prevents most of these standoffs. If your loan needs more time, your agent should be telling the listing agent days in advance rather than announcing a problem on the deadline itself.