Blast is an Ethereum layer 2 that uses the same address format as Ethereum. One paste covers your position on the chain, and fees are paid in ETH.
What makes Blast different is that your balance grows on its own. ETH held here earns yield automatically, and so does USDB, the network's stablecoin. You do not stake anything or claim anything.
That convenience is a headache for record keeping, because the yield arrives without any transaction to point at.
What you get out of the box
Pick your import method.
On Blast
- Open your wallet and copy your address. It starts with 0x and matches your Ethereum address.
On Kryptos
- Go to Kryptos.io and sign up with your Google account.
- From the menu, click Integrations.
- Click Add Integration and search for Blast.
- Click the Blast icon, then choose Import using Address.
- Give the wallet a name, paste your address, and click Import Your Transactions.
Good to know
- Your ETH balance here rises with no incoming transaction. That is the yield, not an error in your wallet.
- Starting a withdrawal to Ethereum stops the yield straight away, even though the funds take days to arrive.
- Points and Gold were scores rather than tokens. You received nothing until the BLAST claim went through.
Yield that arrives without a transaction
Nearly every crypto tax problem is solved by finding the transaction. Blast breaks that, and it breaks it for the asset people are least likely to check.
ETH held on Blast is rebasing. Not wrapped ETH, not a staking receipt, but the ordinary ETH in your wallet: the balance goes up on its own, continuously, with no incoming payment. USDB does the same thing. The yield comes from staking and treasury returns arranged at the network level, and it reaches you as a number that changes.
Every reconciliation people rely on assumes closing balance equals opening balance plus what came in minus what went out. On Blast that equation never balances, and the leftover is not an error. It is income that nothing recorded.
Two things follow. First, the surplus is taxable in most countries as it accrues, so leaving it out understates your income. Second, and more expensively, that same amount is part of what your coins cost you. If you never book it as income, you also never add it to your cost, and you end up paying tax on the whole thing again as a gain when you sell. Missing it costs you twice.
Kryptos reads the balance changes off the chain directly, so the yield lands in your report as income rather than as an unexplained surplus. For how it is treated where you file, see the USA crypto tax guide or the UK crypto tax guide.
Points, Gold and when you received anything
Blast ran its distribution through two scoring systems. Bridging funds in earned Points. Using applications earned Gold. Both were tallied off the chain and shown in a dashboard.
Neither was a token. There was no balance in your wallet, nothing to send, nothing to sell and no market price. They were a record of what you might later be given, which is not the same as being given it.
So the acquisition happened at the claim, when BLAST tokens arrived in your wallet. That is the date and the price your report should use, however long you spent accumulating scores beforehand. Anyone who earned Points and never claimed received nothing at all and has nothing to declare.
Blast has since retired the interface that showed historical Points, so reconstructing what you earned may no longer be possible. It does not matter for your return: what reached your wallet is what counts, and that is on the chain permanently.
Manage your Blast portfolio with Kryptos.
Accounting for yield with no transaction
Balances here grow on their own. Kryptos reconstructs the increase from the chain so it appears as income rather than as an unexplained gap in your report.
Claiming the BLAST airdrop
Points and Gold were off-chain scores worth nothing on their own. The claim transaction is when you received tokens, and its date sets the value.
Bridging out and losing the yield
Yield stops the moment a withdrawal starts, not when it completes, so the last several days of a withdrawal earn nothing. Worth knowing before you plan around it.
Audit-ready, automatically.
Once your wallets and exchanges are connected, generating a tax report takes a single click. Open Reports from the menu, choose your jurisdiction, and download.
Yield is income even without a transaction
A balance that grows on its own is still a receipt. In most countries that is income as it accrues, valued as it arrives, and the fact that no transaction records it does not remove the obligation.
The yield also becomes cost
Whatever you were taxed on as income becomes part of what those coins cost you. Skip the income step and you will pay tax on the same amount again when you sell.
Points and Gold were not assets
They were scores in a program, not tokens, with no balance and nothing you could sell. You acquired nothing until the claim, so the claim date is your acquisition date.
USDB is its own token
USDB exists on Blast and is not the same contract as any stablecoin you hold elsewhere. It also earns yield, so a stablecoin balance that grows is normal here.
Read-only by design.
- Kryptos only ever needs your public wallet address
- A public address is read-only. It can't move or spend anything
- We never ask for your recovery phrase or private key
- Remove a wallet whenever you like, and its data goes with it
If something doesn't sync.
That is the network's yield. It arrives as a balance change rather than as a payment, which is why nothing shows in your transaction list.
Opening balance plus deposits minus withdrawals will not equal your closing balance on Blast, because yield is added outside that arithmetic. The surplus is the income.
Use the date the claim transaction confirmed. Points and Gold accrued earlier but were not assets, so they are not the acquisition.
Still stuck? Email support@kryptos.io or open live chat from the app.