QastLedger
Connecting Polymarket to QastLedger only takes one thing: your public wallet address. Your trades are recorded on the blockchain, so the address is all we need to read your history. Here's where to find it.
What you're looking for
A Polymarket wallet address starts with 0x, followed by 40 letters and numbers, like 0x3f5c…9a21.
Step 1: Copy your address from Polymarket
- Log in to polymarket.com.
- Open your profile by clicking your profile picture or username.
- Find the address under your name. It starts with
0x. Click it or the copy icon next to it to copy the full address.
Polymarket updates its website from time to time, so the layout may differ slightly. The address you want is always the one shown on your Polymarket profile.
Make sure it's the right address
This is where most people get stuck. Polymarket holds your funds and positions in a wallet it sets up for your account. Its address is often different from the wallet you log in with, such as MetaMask or a Coinbase wallet.
Always copy the address shown on your Polymarket profile. If QastLedger connects but shows no trades, you most likely pasted your login wallet's address instead.
Step 2: Connect it to QastLedger
- In QastLedger, go to Trade History and find the Polymarket card.
- Paste your wallet address and click Connect Polymarket.
- Traded from more than one Polymarket account? Connect each address separately. See combining multiple Polymarket wallets.
Troubleshooting
| Problem | Fix |
|---|---|
| Address not accepted | It must be 0x plus exactly 40 letters and numbers, with no spaces. Copy it again from your profile. |
| Connected, but no trades | You probably used your login wallet's address. Copy the address from your Polymarket profile instead. |
| Some trades are missing | You may have traded from another Polymarket account. Connect each wallet address you've used. |
Still stuck? Email [email protected] and we'll help you get connected.
Also trade on Kalshi? See how to create a Kalshi API key. Once you're connected, read how to report Polymarket trades on your taxes.
This guide is general information, not tax advice. Tax treatment of event contracts is still evolving, so confirm how it applies to you with a tax professional.