Gemini Missing Cost Basis: How to Fix It

What does missing cost basis mean on Gemini?

Your cost basis is what you originally paid for your crypto, including fees. It's the number Gemini subtracts from your sale price to calculate your gain or loss.

When that number is missing, Gemini doesn't know what you paid, so it can't calculate your real gain.

You'll usually spot the problem in the Gemini Tax Center, either on your gain/loss statement or on your Form 1099-DA. In each one, the cost basis field shows up blank, as "unknown," 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. Gemini just doesn't have it on file.

Why is my cost basis missing on Gemini?

Gemini can only track what you paid if you bought the crypto directly on Gemini and it never left. Anything else can leave the cost basis blank. Here are the most common reasons it happens.

You got assets back through Gemini Earn and the Genesis distributions

This one is specific to Gemini, and it's the reason a lot of Gemini users see broken cost basis.

Gemini Earn let you lend out your crypto for yield through Gemini's lending partner, Genesis. In November 2022, Genesis halted withdrawals and Earn balances were frozen. Those assets were later returned to users in-kind through the Genesis bankruptcy settlement, which was worked out over 2024 and 2025.

Here's why that scrambles cost basis. Your coins left your account, sat frozen for a long stretch, and then came back as settlement distributions. By the time they returned, the clean link between each coin and its original purchase price was often broken. Gemini's ledger can show the assets arriving back in your account without carrying the price you first paid for them.

If you were a Gemini Earn user, this is a likely reason your gain/loss statement or 1099-DA looks off.

You transferred crypto into Gemini

If you bought crypto on another exchange or in a self-custody wallet and then transferred it into Gemini, Gemini never saw the original purchase. It knows the coins arrived, but not what you paid for them.

When you later sell, Gemini has proceeds but no cost basis to subtract.

Your activity is split between Gemini and ActiveTrader

Gemini and Gemini ActiveTrader are two ways into the same account, but activity spread across both interfaces doesn't always line up cleanly on one consolidated statement.

As a result, some lots can end up unmatched, which leaves gaps in the cost basis on your gain/loss statement or Form 1099-DA.

Your assets are non-covered on Form 1099-DA

Starting with the 2025 tax year, Gemini issues Form 1099-DA to report your crypto sales.

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 Gemini has no obligation to track or report its cost basis. On these, the cost basis field is blank by design.

For a deeper look at the form itself, check out our guide to the Gemini Form 1099-DA.

You earned crypto through Gemini Earn rewards or staking

Crypto you received rather than bought, like Earn rewards, staking income, or referral bonuses, often lands in your account with no purchase price recorded.

Gemini reports that kind of income on Form 1099-MISC, not Form 1099-DA. That income has a cost basis equal to its fair market value on the day you received it, but that figure doesn't always carry into your gain/loss calculation.

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 $3,000, not $6,000. His cost basis was $3,000, it just wasn't recorded on Gemini.

If he files straight from the $0 figure, he pays tax on an extra $3,000 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 Gemini

You have a few options, from a quick manual edit in the Gemini Tax Center to a complete fix across all of your accounts.

Enter cost basis in the Gemini Tax Center

You can find your tax documents in the Gemini Tax Center under Account, then Settings, then Statements and taxes, then Taxes. Along with your gain/loss statement and Form 1099-DA, Gemini lets you manually enter cost basis for a transfer, gift, or payment.

This works fine if you're only missing a handful of transactions and you know exactly what you paid.

However, it has real limits. Gemini can only work with the data on its own side, so it can't reconstruct the original cost basis of crypto you transferred in or of assets that Genesis distributed back into your account. If your history is spread across several wallets and exchanges, entering it one transaction at a time gets slow and error-prone fast.

Track down your original records

Your true cost basis lives wherever you first bought or acquired the crypto.

That means digging up the buy records from the other exchange or wallet, or your original Gemini Earn purchase records, and matching each transfer to the sale it eventually became on Gemini.

This is doable for a few transactions. It becomes a real project once you've moved crypto between several platforms, or once the Gemini Earn and Genesis distributions are in the mix.

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 Gemini 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 Gemini back to its original purchase, including your pre-freeze Earn purchases, so your cost basis carries across instead of resetting to $0.

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 Gemini 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.

One thing to keep separate: your Earn rewards and other income are reported on Form 1099-MISC, not the 1099-DA. That form covers income, not your capital gains, so it isn't where your missing cost basis gets fixed.

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 Gemini'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.

That makes the transferred-in problem more visible, not less. When crypto moves into Gemini from another account, or comes back through the Genesis distributions, 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 Gemini almost always comes down to the same thing: your crypto has a history Gemini can't see, whether it was bought elsewhere or frozen and returned through the Genesis settlement. Pull that history back together, and the problem disappears.

CoinLedger connects to Gemini and hundreds of other exchanges and wallets, matches your transfers, 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.

Get started with a free account today.