
Key takeaways
- Crypto.com shows missing cost basis when it doesn't know what you originally paid for your crypto, usually because you transferred the crypto in from somewhere else or earned it as a reward like CRO card cashback, Earn, or staking, where there's no purchase price to carry.
- Left uncorrected, the IRS treats missing cost basis as $0, which turns your entire sale into a taxable gain and can massively overstate your tax bill.
- You are allowed to report your own cost basis, even when Crypto.com's report or your Form 1099-DA leaves it blank, as long as you have records to back it up.
What does missing cost basis mean on Crypto.com?
Your cost basis is what you originally paid for your crypto, including fees. It's the number Crypto.com subtracts from your sale price to calculate your gain or loss.
When that number is missing, Crypto.com doesn't know what you paid, so it can't calculate your real gain.
You'll usually spot the problem in one of a few places: your gain/loss report from the Crypto.com tax tool, your exported transaction history, or your Form 1099-DA. In each one, the cost basis field shows up blank, as "N/A," or as "$0."
Remember, a missing cost basis is a records problem, not a tax you actually owe. The crypto still has a real purchase price. Crypto.com just doesn't have it on file.
Why is my cost basis missing on Crypto.com?
Crypto.com can only track what you paid if you bought the crypto directly on Crypto.com. Rewards, transfers, and older activity can all leave the cost basis blank. Here are the most common reasons it happens.
You earned rewards with no purchase price
This is where Crypto.com is different from a plain spot exchange.
Crypto.com is built around rewards. CRO Visa card cashback, Crypto.com Earn, Supercharger, and staking rewards all drop crypto into your account that you received rather than bought.
Because you never paid a purchase price for that crypto, there's no cost figure to carry forward. Reward crypto is generally received at its fair market value on the day you get it, and that value becomes its cost basis. If that value isn't recorded, the later sale shows up with no basis at all.
You transferred crypto between the Crypto.com App, Exchange, and DeFi Wallet
Crypto.com is really three separate environments: the Crypto.com App, the Crypto.com Exchange, and the Crypto.com Onchain (DeFi) wallet.
When you move crypto between them, or in from an outside exchange or self-custody wallet, the receiving side only sees a deposit. It doesn't see what you paid.
Moving crypto between wallets you own is a non-taxable transfer, but it still breaks the basis chain if the two sides aren't reconciled. When you later sell, Crypto.com has proceeds but no cost basis to subtract.
Your history has gaps from Crypto.com's US product changes
The US-facing Crypto.com Exchange has changed over the years.
Product migrations and account transitions can leave gaps where your older activity, and the cost basis attached to it, didn't carry over cleanly. Assets you bought years ago can resurface looking like fresh deposits with no purchase price.
Your assets are non-covered on Form 1099-DA
Starting with the 2025 tax year, US exchanges like Crypto.com report your crypto sales on Form 1099-DA.
For the 2025 tax year, exchanges report your proceeds only, not your cost basis. Any crypto you bought before January 1, 2026, or transferred in from another platform, is treated as a non-covered asset, which means Crypto.com has no obligation to track or report its cost basis. On these, the cost basis field is blank by design.
What happens if you file with $0 cost basis?
This is the part that scares people, and it's worth understanding clearly.
If cost basis is missing, the IRS treats it as $0. That means your entire sale price is counted as profit, even if you barely made any money.
Michael's actual gain is $2,500, not $4,000. His cost basis was $1,500, it just wasn't recorded on Crypto.com.
If he files straight from the $0 figure, he pays tax on an extra $1,500 he never earned.

Luckily, there's an easy fix. You are allowed to report your own cost basis, as long as you have documentation to support it.
How to fix missing cost basis on Crypto.com
You have a few options, from Crypto.com's own tax tool to a complete fix across all of your accounts.
Use the Crypto.com tax tool, and know its limit
Crypto.com offers a free tax tool that pulls in your Crypto.com activity and generates a gain/loss report, and you can export your transaction history as a CSV file.
This works fine when everything you bought, earned, and sold happened inside Crypto.com.
However, it has one hard limit. It only sees your Crypto.com-side data. It has no record of the original purchase price of any crypto you transferred in, so those assets still land in your report with no cost basis. If your history is spread across other exchanges and wallets, the tool can't close that gap on its own.
Track down your original records
Your true cost basis lives wherever you first bought or acquired the crypto.
For transferred-in coins, that means digging up the buy records from the other exchange or wallet and matching each transfer to the sale it eventually became on Crypto.com.
For rewards like CRO cashback, Earn, or staking, it means finding the date you received each reward and its fair market value that day, since that value is your cost basis.
This is doable for a few transactions. It becomes a real project once you've moved crypto between several platforms and collected rewards over a few years.
Import everything into CoinLedger
The cleanest fix is to bring your full history back together in one place.
Crypto tax software like CoinLedger connects to the Crypto.com App, the Crypto.com Exchange, the DeFi wallet, and hundreds of other exchanges and wallets, then imports your complete transaction history by API or CSV. Because it sees every platform, it can match the crypto you transferred into Crypto.com back to its original purchase, so your cost basis carries across instead of resetting to $0.
It also picks up your reward income, so CRO cashback, Earn, and staking rewards get a cost basis equal to their value on the day you received them.
Its reconciliation system flags missing cost basis and other errors before you file, so you can fix them in one pass instead of hunting through transactions one at a time.
How to report the correct cost basis on your taxes
Here's the reassuring part: a blank cost basis on Crypto.com or on your 1099-DA does not lock you into overpaying.
Under IRS rules, you report your capital gains and losses on Form 8949. You're allowed to use your own cost basis figures there, as long as you have documentation to support them.
You don't need to request a corrected Form 1099-DA. Because exchanges aren't required to report cost basis for non-covered assets, a blank field isn't an error to dispute, it's a number you're expected to supply yourself.
Remember, the IRS cares most about complete reporting. Report all of your activity with accurate cost basis, keep your records, and a blank field on Crypto.com's version is a non-issue.
The per-wallet cost basis rule
One recent change matters here.
Starting January 1, 2025, the IRS requires you to track cost basis on a per-wallet basis (under Revenue Procedure 2024-28), instead of pooling every account together. Each wallet and exchange account keeps its own set of cost basis records.
For Crypto.com, that's a big deal, because the App, the Exchange, and the DeFi wallet each count as their own account. When crypto moves between them, its cost basis has to follow it correctly. Importing every source into one place is what makes that possible.
Get started with CoinLedger
A missing cost basis on Crypto.com almost always comes down to the same thing: your crypto has a history Crypto.com can't see, whether it arrived as a transfer or as a reward. Pull that history back together, and the problem disappears.
CoinLedger connects to the Crypto.com App, the Crypto.com Exchange, the DeFi wallet, and hundreds of other exchanges and wallets, matches your transfers, prices your rewards, and rebuilds your cost basis across every account, so you can file with accurate numbers instead of a $0 placeholder.
CoinLedger is trusted by more than 700,000 investors around the world.
Frequently asked questions
- What do I do if my cost basis is missing on Crypto.com?
Report your own cost basis using records from wherever you originally bought or acquired the crypto. You're allowed to do this on Form 8949, and crypto tax software like CoinLedger can calculate it for you across all of your accounts.
- Why does my Crypto.com reward show no cost basis?
Rewards like CRO card cashback, Crypto.com Earn, and staking are crypto you received rather than bought, so there's no purchase price attached. Their cost basis is the fair market value on the day you received them, which isn't always carried into your gain/loss report.
- Does the Crypto.com tax tool capture cost basis for crypto I transferred in?
No. The tool only sees your Crypto.com-side activity, so it has no record of the original purchase price of crypto you moved in from another exchange or wallet. You'll need those outside records, or software that imports every platform, to fill in the basis.
- What if I don't know my crypto cost basis?
Start with your transaction history from the exchange or wallet where you first bought the crypto, plus the receipt dates and values for any rewards. If you've lost those records, importing your accounts into crypto tax software can reconstruct your cost basis from your on-chain and exchange history.
- Why does my Crypto.com Form 1099-DA show $0 or blank cost basis?
For the 2025 tax year, exchanges report proceeds only, not cost basis. Any crypto bought before 2026 or transferred in is a non-covered asset, so the cost basis field is blank by design.
- Does missing cost basis mean I owe more tax?
Only if you file without fixing it. A missing cost basis makes your sale look like pure profit. Once you report your real cost basis, your gain (and your tax) drops to the correct amount.
- Can I still fix my cost basis after I've filed?
Yes. If you already filed with a $0 or incorrect cost basis and overpaid, you can file an amended return with your correct figures to claim back the difference.
How we reviewed this article
All CoinLedger articles go through a rigorous review process before publication. Learn more about the CoinLedger Editorial Process.

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