> ## Documentation Index
> Fetch the complete documentation index at: https://guides.koinx.com/llms.txt
> Use this file to discover all available pages before exploring further.

# How to Generate Your zkSync Tax Report with KoinX

> Connect your zkSync to KoinX in a few steps to generate and file your zkSync taxes accurately.

<Info>
  **Wallet Address**  ·  **\~5 min**  ·  ETH · ERC-20 · DeFi on zkSync Era  ·  **India** · **100+ countries**
</Info>

## What's covered

<CardGroup cols={2}>
  <Card title="ETH and ERC-20" icon="arrow-right-arrow-left" color="#0066CC">
    ETH and ERC-20 transfers on zkSync Era.
  </Card>

  <Card title="DeFi activity" icon="chart-line" color="#0066CC">
    DeFi activity on zkSync Era.
  </Card>
</CardGroup>

## Before you start

<CardGroup cols={2}>
  <Card title="zkSync wallet address" icon="wallet">
    Your public zkSync wallet address (starts with `0x`). Never your private key or seed phrase.
  </Card>

  <Card title="KoinX account" icon="sparkles" href="https://app.koinx.com/get-started">
    Free account — no credit card needed.
  </Card>
</CardGroup>

***

## Connect zkSync to KoinX

<Steps>
  <Step title="Open KoinX Integrations">
    Log in to [app.koinx.com](https://app.koinx.com) → **Integrations** → **Add Integration**.
  </Step>

  <Step title="Select zkSync">
    Search for **zkSync** in the integrations list and select it.
  </Step>

  <Step title="Enter your public wallet address">
    Paste your zkSync wallet address into the address field, then click **Connect**.

    <Warning>
      KoinX only requires your public wallet address. Never enter your private key or seed phrase.
    </Warning>
  </Step>

  <Step title="Wait for sync to complete">
    KoinX fetches all on-chain zkSync transactions. Once sync completes, your entire zkSync history is in KoinX.
  </Step>
</Steps>

<Check>
  **Done.** KoinX has your complete zkSync transaction history.
</Check>

Head to [Tax Reports](https://app.koinx.com/tax-report) — your transactions are classified and your capital gains report is ready.

***

## Frequently asked questions

<AccordionGroup>
  <Accordion title="Does KoinX support zkSync blockchain?">
    Yes. KoinX supports zkSync Era blockchain integration including ETH and ERC-20 transfers and DeFi activity.
  </Accordion>

  <Accordion title="Does KoinX need my zkSync private key?">
    No. KoinX only requires your public wallet address. Never share private keys or seed phrases with any platform.
  </Accordion>

  <Accordion title="Are ZK airdrop transactions classified correctly in KoinX?">
    Airdrop transactions are classified as income. Review them in the Transactions view and adjust if needed.
  </Accordion>

  <Accordion title="Can I add multiple zkSync wallets in KoinX?">
    Yes. Add each wallet address separately under the zkSync integration.
  </Accordion>
</AccordionGroup>

***

## Verify your zkSync transactions

<Steps>
  <Step title="Navigate to the zkSync integration">
    Go to **Integrations** → **zkSync** in KoinX.
  </Step>

  <Step title="Verify transactions are present">
    Confirm ETH transfers and DeFi activity are listed.
  </Step>

  <Step title="Review unclassified transactions">
    Click on any unclassified items to assign the correct category.
  </Step>

  <Step title="Confirm portfolio reflects zkSync holdings">
    Check **Portfolio** to confirm assets appear correctly.
  </Step>
</Steps>

***

## Troubleshooting

<AccordionGroup>
  <Accordion title="zkSync transactions aren't showing after sync">
    **Why this happens:** Incorrect address or sync in progress.

    **Fix:** Verify under **Integrations** → **zkSync**. Remove and re-add if wrong.
  </Accordion>

  <Accordion title="Sync taking too long">
    **Why this happens:** High DeFi activity.

    **Fix:** Wait up to 10 minutes, then reconnect.
  </Accordion>

  <Accordion title="ZK airdrop transactions not classified correctly">
    **Why this happens:** Airdrop transactions have a distinct structure.

    **Fix:** Manually classify as income in the Transactions view.
  </Accordion>

  <Accordion title="Does reconnecting zkSync wallet create duplicates?">
    **Why this happens:** KoinX deduplicates automatically.

    **Fix:** No action needed.
  </Accordion>
</AccordionGroup>

***

## Related integrations

<CardGroup cols={2}>
  <Card title="Ethereum" icon="link" href="/integration/ethereum">
    Connect your Ethereum wallet.
  </Card>

  <Card title="Linea" icon="link" href="/integration/linea">
    Connect your Linea wallet.
  </Card>

  <Card title="Scroll" icon="link" href="/integration/scroll">
    Connect your Scroll wallet.
  </Card>

  <Card title="Base" icon="link" href="/integration/base">
    Connect your Base wallet.
  </Card>
</CardGroup>

<Card title="Ready to generate your zkSync crypto tax report?" color="#6366f1" icon="rocket" href="https://app.koinx.com/tax-report">
  Turn your zkSync data into an audit-ready crypto tax report.
</Card>