How it works

Create a free account and add a wallet for each exchange or self-custody wallet.
Import the CSV from Coinbase, Kraken, Crypto.com, Gemini or Robinhood, or type transactions in by hand.
Open Reports, pick the tax year, and download the 1099-DA style summary as CSV or PDF.

Check your 1099-DA before the IRS does.

Starting with 2025 sales, crypto brokers send the IRS a Form 1099-DA for every sale. From 2026 sales they also report cost basis. LotLedger rebuilds your gains wallet by wallet from your own records, so you can see where a broker's form is missing basis and fix it on Form 8949.

Start free How the math works

Free while in beta. No card, no wallet connection, no exchange API keys.

Tax year 2025 · FIFO · per wallet

Proceeds$61,440.00

Cost basis$38,915.00

Short-term gain$4,210.00

Long-term gain$18,315.00

Staking income$420.00

Lines missing basis2

CSVPDFForm 8949 layout

Every transaction type

Buys, sells, trades, spending, staking and reward income, deposits, withdrawals and transfers between your own wallets.

Per-wallet cost basis

From 2025 the IRS wants basis tracked wallet by wallet. Lots stay in the wallet that holds them, and transfers carry the original cost and date.

FIFO, LIFO or HIFO

FIFO by default. Switch method and every gain, holding period and report recalculates at once.

Exchange CSV import

The five biggest US exchanges: Coinbase, Kraken (trades or ledgers), Crypto.com, Gemini and Robinhood, detected automatically. A simple template covers any other source. Re-importing the same file never duplicates rows.

1099-DA style report

Proceeds, cost basis and gain or loss split into short and long term, with a Form 8949 line for each sale. Export CSV for your accountant or a PDF for your files.

Dashboard

Portfolio value at live prices, unrealized gain, realized gain for the year, and holdings by asset and by wallet.

What is Form 1099-DA?

Form 1099-DA, Digital Asset Proceeds From Broker Transactions, is the IRS form US crypto brokers (exchanges, hosted wallets, payment processors) file for each customer. For sales in 2025 it reports gross proceeds. For sales on or after 1 January 2026 it also reports cost basis for "covered" assets: ones bought on that same platform on or after 1 January 2025 and never moved off it. Coins moved in from another wallet are usually non-covered, so the form shows no basis for them and you have to supply it. LotLedger keeps that basis for you.

LotLedger is a record-keeping tool. It is not tax advice and it does not file anything with the IRS. Read the disclaimer.