Why does a BTC swap quote change after you send the deposit
A Bitcoin swap quote changes after you send the deposit because the quote is time-limited and Bitcoin transactions take unpredictable time to confirm. The exchange rate you see is valid only for a brief window, typically a few minutes, and by the time your deposit lands on the blockchain, the market price has moved.
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You receive about at . Exchange reference .
Status: waiting for your deposit
You send from your own wallet straight to the exchanger — nothing to connect, no account, and you stay on this page throughout. Rates are indicative until a swap is opened.
The swap is carried out by an independent exchanger and the deposit address above is theirs. dogesound.club never holds, receives or controls your funds, has no key to that address, and earns a referral commission. Opening a swap sends your receiving address, IP, browser and timezone to the exchanger for their compliance checks; we store none of it. Check their terms, fees and country restrictions before sending anything.
How quotes work for Bitcoin swaps
When you initiate a swap on a site like dogesound.club, the exchanger generates a quote based on the current market price of Bitcoin against the asset you want to receive. That quote includes a lock time - usually between 30 seconds and 5 minutes. During that window, the exchanger guarantees the rate. If your deposit arrives and confirms within that time, you get the quoted amount.
Bitcoin does not confirm instantly. The network processes transactions in blocks that arrive roughly every 10 minutes. A deposit might take one confirmation, or it might take several if the exchanger waits for multiple blocks to reduce the risk of double-spending. Even a single confirmation can take 10 minutes or more. By then, the quote has expired.
What happens when the quote expires
Once the lock time passes, the exchanger recalculates the rate based on the current market price. If Bitcoin's price has dropped, you receive fewer units of the target asset. If it has risen, you receive more. The exchanger does not hold the old rate because it would be taking on market risk. It is a broker, not a charity.
Some exchangers display a "rate valid for X minutes" warning. Others do not. The safest approach is to send the deposit as quickly as possible after receiving the quote, and to check that the deposit address is still active before sending. If you wait too long, the address may expire entirely, which is covered in the sibling page about expired deposit addresses.
Why Bitcoin is different from other chains
This problem is specific to Bitcoin because of its confirmation speed. Swapping BNB Chain tokens, for example, usually finishes in seconds. The block time is 3 seconds, and finality is near-instant. A quote given for a BNB Chain swap is likely to still be valid by the time the deposit confirms. Bitcoin's 10-minute block interval makes it an outlier.
The same issue applies to any chain with slow confirmation times, such as Litecoin or Dogecoin, but Bitcoin is the most common example. The hub page "Swapping Bitcoin for other assets" explains the broader workflow and why Bitcoin requires extra steps compared to faster chains.
What you can do about it
You cannot prevent the quote from changing. Market prices move. But you can reduce the impact by sending the deposit immediately after receiving the quote. If you are swapping a large amount, consider splitting it into smaller swaps so that price movements affect only part of the total. Some exchangers also offer a "fixed rate" option that holds the price for longer, though this usually comes with a higher fee.
The key point is simple: the quote you see is a snapshot of a moving market. Bitcoin's slow confirmation means the snapshot is often outdated by the time the network finishes processing your deposit. The exchanger updates the rate to reflect the current market, not the past one.
Not financial advice. dogesound.club publishes market data and general information about digital assets. Crypto assets are volatile and you can lose everything you put in. Nothing here is a recommendation to buy, sell or hold, and we make no price predictions.
Prices are sourced from third parties and may be delayed or wrong. Verify anything you intend to act on against a primary source.