Before claiming a Polygon Bridge withdrawal, confirm that the Polygon burn has been checkpointed, then submit the exit transaction on Ethereum. If you need the full transfer sequence in both directions, see how Polygon Bridge moves tokens; this guide focuses on the wait and claim after a withdrawal starts.
- Burn: The withdrawal first removes the bridged tokens from your Polygon wallet.
- Checkpoint: Validators must include the burn in a checkpoint recorded on Ethereum.
- Exit: You submit a separate Ethereum transaction to release the original asset.
- Gas and wallet: You need POL for the Polygon transaction and ETH for the Ethereum claim, using the same wallet that started the withdrawal.
The withdrawal has three stages
A withdrawal is a burn, a wait, and a claim. For example, if Maya sends USDC from Polygon to Ethereum, the first transaction burns the Polygon version of USDC. It does not immediately send Ethereum USDC to her address.
The burn is the proof the bridge needs to verify before releasing the original asset. Polygon validators bundle activity into a checkpoint and submit it to Ethereum. The bridge’s Predicate contracts—the contracts that hold or release mapped assets—use the verified withdrawal proof to authorize the release.
That checkpoint explains the delay: Ethereum must receive the checkpoint before the exit can be proved. Checkpoints are often submitted roughly every 30 minutes, but timing varies; allow a few hours rather than planning around an exact arrival time. The final claim also waits for Ethereum to include your transaction.
Check the burn before doing anything again
Start with the Polygon transaction hash and confirm that the burn succeeded on Polygon. A submitted or pending transaction is not a completed burn. If it failed, there is no withdrawal to claim; resolve the failed transaction before starting another one.
If the burn succeeded, check its status in the bridge’s transaction tracker or a Polygon block explorer. The key distinction is whether the burn has been included in a checkpoint on Ethereum. Before that happens, the exit proof is not ready, so waiting is the right next step.
Maya should not start a second withdrawal just because the first one has not appeared on Ethereum. The original burn is still the withdrawal she needs to finish. Once its checkpoint is recorded, the bridge can generate or verify the proof needed for the exit.
Claim only after the checkpoint is ready
When the checkpoint is ready, reconnect the same wallet that initiated the burn and continue the pending exit. Review the destination address and token, then submit the claim transaction on Ethereum. The claim uses ETH for gas, even though the asset began on Polygon.
After Ethereum confirms the claim, check the receiving address on Ethereum for the original token. If it is not visible in the wallet, verify the token balance or add the correct Ethereum token display; a wallet’s asset list can lag behind the on-chain transfer.
Keep enough ETH aside for this second transaction before withdrawing. The Polygon burn uses POL, while the Ethereum claim uses ETH, and Ethereum gas changes with network demand. If you cannot pay for the claim immediately, the pending exit can generally be completed later; do not repeat the burn to solve a gas shortfall.
Use the status to find the actual holdup
There are three different waits: Polygon has not confirmed the burn; the burn is confirmed but not yet checkpointed; or the checkpoint is ready but the Ethereum claim is pending or unsubmitted. Each requires a different response. Check the relevant chain’s transaction record rather than judging progress by whether the token appears in your wallet.
A pending Ethereum claim usually points to the Ethereum transaction itself, such as a low gas price or a wallet transaction queue. Check whether the claim hash is pending, replaced, or failed before submitting anything else. If a transaction was replaced, confirm its final status first so you do not mistake a dropped claim for a new bridge withdrawal.
One important exception: once a withdrawal burn succeeds, it cannot be cancelled or reversed. Complete the matching exit when it becomes available; the burn does not return the tokens to Polygon. For a routine transfer, this means patience through the checkpoint and a separate Ethereum claim—not another attempt from scratch.
In practice, I check the burn hash, wait for its checkpoint, and then confirm the Ethereum claim. The Polygon Bridge is a three-stage process on the way back, so budget for both the validator wait and the final Ethereum gas transaction.
FAQ
How long should I wait for the checkpoint?
Checkpoint timing varies with Polygon and Ethereum activity. They are often submitted roughly every 30 minutes, but a withdrawal can take a few hours. Use the transaction status to tell whether the burn is still waiting for a checkpoint; do not submit another burn while the first is progressing.
Can I finish the withdrawal later?
Yes. If the burn succeeded, you can generally complete the exit after the checkpoint is available, even if you cannot pay Ethereum gas right away. Keep the original transaction hash and return to the pending withdrawal. The burn itself cannot be cancelled, so the exit remains the step to complete.
Why do I need ETH if the tokens are on Polygon?
The burn happens on Polygon and uses POL for gas. The final claim is a separate transaction on Ethereum, where the bridge releases the original asset, so that transaction uses ETH. A wallet funded only with POL can start the Polygon-side withdrawal but cannot pay for its Ethereum claim.