Bitcoin transaction dropped from the mempool: where is my BTC?
Explorer says “transaction not found”? Don't panic — unconfirmed coins can't vanish.
Good news first: a transaction that never confirmed never moved your coins. If it disappeared from the network, the BTC is still controlled by the sender's wallet. The question is only how to get it confirmed — or spend it again.
What “dropped from the mempool” means
Every Bitcoin node keeps its own list of waiting transactions — the mempool. Nodes are allowed to forget transactions, and they do so for a few common reasons:
- Age: Bitcoin Core drops unconfirmed transactions after 14 days (336 hours) by default.
- Full mempool: each node keeps up to 300 MB by default. When it's full, the lowest-fee transactions are evicted first and the node's minimum fee rises.
- Fee below the relay minimum: current Bitcoin Core (29.1 and 30) relays transactions down to 0.1 sat/vB, but older nodes and some services still require 1 sat/vB. A very cheap transaction may reach only part of the network.
- Replaced: the sender (or the exchange) replaced it with a higher-fee version using RBF. The old TXID then disappears and a new TXID confirms instead.
- Conflict: the same coins were spent in another transaction that confirmed first.
Step 1: check what really happened
- Look the TXID up in our transaction status tool — it queries several explorers at once.
- Open the sender's address (not just the TXID) in an explorer. If you see a different confirmed transaction spending the same coins to the same recipient, it was replaced with a higher fee — the payment arrived under a new TXID.
- If the address shows the coins unspent and no pending transaction, the original was dropped. Go to step 2.
Step 2: choose a fix
| Your situation | Best fix |
|---|---|
| Dropped, fee was OK for today's network | Rebroadcast the same transaction — free. Our accelerator re-sends it to several node networks; if explorers no longer have it, paste the signed raw hex into Push transaction. |
| Dropped, fee too low for today's network | Create a new transaction with a proper fee (RBF / “bump fee” in your wallet, or simply send again once the wallet shows the coins as available). |
| Still in some mempools but not confirming | Speed it up: RBF, CPFP, or premium acceleration. |
| Sent from an exchange | The exchange controls the coins — contact their support with the TXID. See exchange withdrawal pending. |
Step 3: if your wallet still shows the coins as “pending”
Many wallets keep showing a dropped transaction because they remember it locally. Options, depending on the wallet:
- Bitcoin Core: right-click the transaction → Abandon transaction (only possible once it's out of your node's mempool).
- Electrum / Sparrow: use “Increase fee” or “Cancel” to replace it; or remove the local transaction and let the wallet resync.
- Mobile wallets: a rescan/resync usually clears it; some offer a “speed up” button that replaces it.
Important: a dropped transaction is not dead until its coins are spent elsewhere. Anyone who kept a copy — including the recipient — can rebroadcast it, and it may still confirm days later. If you re-send the payment, make sure the new transaction spends the same coins (that's what RBF/cancel does), otherwise you could pay twice.
How to avoid it next time
- Check the current fee rates before sending and avoid the absolute minimum when the mempool is busy.
- Use a wallet that supports RBF and CPFP.
- For urgent payments, pay the next-block rate — it's usually cheaper than fixing a stuck transaction later.
FAQ
Can I lose my Bitcoin if a transaction is dropped?
No. An unconfirmed transaction never moved the coins. They remain in the sender's wallet until a transaction spending them is confirmed.
Why does one explorer show my transaction and another says “not found”?
Each explorer runs its own nodes with their own mempool limits. A low-fee transaction can be in one mempool and already evicted from another. Rebroadcasting helps it reach more nodes.
My transaction ID changed and the payment arrived — is that normal?
Yes. If the sender or exchange bumped the fee with Replace-by-Fee, the confirmed transaction has a new TXID. The old one will show as replaced or not found.
How long until a dropped transaction's coins are spendable again?
As soon as your wallet no longer considers the old transaction pending — after a resync, an “abandon” action or a replacement. To be safe, spend the same coins in a new transaction with a proper fee.