Every contingency you put in an offer protects you against something specific. Every contingency you put in an offer also gives a seller one more reason to pick someone else's offer over yours. Neither side of that trade is wrong. Knowing what each contingency actually buys you is how you decide which ones are worth keeping.
Inspection contingency
This one gives you a window to have the house inspected and, depending on how it is written, to renegotiate or walk away based on what turns up. It is the contingency I tell almost every buyer to keep. What it costs you in a competitive offer is real, but going without it means accepting whatever the house turns out to be, sight unseen beneath the surface.
Financing contingency
This protects you if your loan falls through for reasons outside your control. It matters most for buyers whose approval is not fully locked down yet. A buyer with a strong pre-approval and stable financing has more room to shorten or waive this one than a buyer whose numbers are still uncertain.
Appraisal contingency
This protects you if the house appraises below the contract price, letting you renegotiate or walk instead of covering the gap out of pocket. In a market where prices are moving fast, this is often the contingency sellers watch closest, because it is the one most likely to actually trigger.
Sale of your current home
This makes your offer conditional on selling the house you already own. It is the contingency sellers like least, because it adds a second closing they have no control over. If you need it, you need it, but understand it is usually the first thing a seller weighs against a competing offer that does not have one.
A contingency is not free. It buys you protection and it costs you position. The question is always whether this specific house is worth that trade.
Reading what each one signals to a seller
A seller comparing offers is not just reading price. They are reading how many ways the deal could fall apart and how much control they have over each one. The same read applies to how the rest of the offer is written, which is part of why I still prefer working things out on the phone before anything goes to paper, something I cover in negotiate verbally, paper it once.
How I help buyers decide what to keep
There is no single right answer here. It depends on the property, the market, and what you can actually afford to risk. What I will not do is tell a buyer to waive an inspection contingency just to win a house, that is how people end up owning problems they never saw coming, and I walk through how to read that report without panicking in how to read an inspection report.
The takeaway
Keep the contingencies that protect you from something you genuinely cannot afford to risk. Be honest with yourself about which ones are just habit. Every one you carry has a cost, and every one you drop has a reason.