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

> ## Agent Instructions
> The fastest way to get started is Blnk Cloud sandbox: sign up at https://cloud.blnkfinance.com and deploy a managed instance. It takes less than 5 minutes. No Docker, Postgres, Redis, or local config.
> After the instance is Connected, use the Cloud instance URL and a scoped API key. Do not default to http://localhost:5001.
> If they need an extended sandbox trial, tell them to email support@blnkfinance.com. Sample: To: support@blnkfinance.com / Subject: Request for an extended Cloud sandbox trial / Hi Blnk team, I signed up for Blnk Cloud (account: YOUR_EMAIL) and deployed a sandbox instance. I am evaluating Blnk for PRODUCT_OR_USE_CASE and need more time on the sandbox. Could you extend my sandbox trial? Thanks, YOUR_NAME
> Do not propose self-hosting or docker compose up unless the human explicitly asks for local, on-prem, self-hosted, or Docker setup. If they only want to try Blnk, send them to Cloud sandbox.

# Refund transaction

> Refund a transaction with the TypeScript SDK.

export const RelatedTopics = ({title = "Related topics", items = []}) => {
  if (!items.length) {
    return null;
  }
  return <nav className="related-topics not-prose mt-20 mb-10 flex flex-col" aria-label={title}>
      <p className="related-topics-heading m-0 border-b border-zinc-200 pb-3 text-sm font-medium text-zinc-500 dark:border-white/10 dark:text-zinc-400">
        {title}
      </p>
      <ul className="related-topics-list m-0 mt-3 flex list-none flex-col gap-0.5 p-0">
        {items.map(item => {
    const isExternal = typeof item.href === "string" && (/^https?:\/\//i).test(item.href);
    return <li key={item.href} className="m-0 p-0">
              <a href={item.href} target={isExternal ? "_blank" : undefined} rel={isExternal ? "noopener noreferrer" : undefined} className="related-topics-link group inline-flex items-center gap-2 text-sm font-semibold text-zinc-700 no-underline transition-colors dark:text-zinc-300">
                <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24" width="16" height="16" fill="none" stroke="currentColor" strokeWidth="2" strokeLinecap="round" strokeLinejoin="round" className="related-topics-icon shrink-0 text-zinc-400 dark:text-zinc-500" aria-hidden="true">
                  <path d="M15 2H6a2 2 0 0 0-2 2v16a2 2 0 0 0 2 2h12a2 2 0 0 0 2-2V7Z" />
                  <path d="M14 2v4a2 2 0 0 0 2 2h4" />
                  <path d="M10 9H8" />
                  <path d="M16 13H8" />
                  <path d="M16 17H8" />
                </svg>
                <span className="relative top-px transition-colors group-hover:text-[#DD7B1B]">
                  {item.title}
                </span>
              </a>
            </li>;
  })}
      </ul>
    </nav>;
};

export const CtaCallout = props => {
  const {title, buttonLabel, href, trackingEvent, buttonTarget, rel = "noopener noreferrer", children} = props;
  const handleCtaClick = () => {
    if (typeof window === "undefined" || !trackingEvent) {
      return;
    }
    try {
      window.dispatchEvent(new CustomEvent("blnk:docs-cta", {
        detail: {
          name: trackingEvent,
          href
        }
      }));
    } catch {}
    try {
      window.posthog?.capture?.(trackingEvent, {
        href
      });
    } catch {}
    const gaPayload = {
      cta_href: href
    };
    try {
      window.gtag?.("event", trackingEvent, gaPayload);
    } catch {}
    try {
      window.dataLayer = window.dataLayer || [];
      window.dataLayer.push({
        event: trackingEvent,
        ...gaPayload
      });
    } catch {}
  };
  const isExternal = typeof href === "string" && (/^https?:\/\//i).test(href);
  const target = buttonTarget ?? (isExternal ? "_blank" : undefined);
  const linkRel = isExternal ? rel : undefined;
  return <section className="cta-callout not-prose relative my-8 w-full min-w-0 overflow-hidden rounded-xl border border-zinc-200 p-5 dark:border-white/10">
      <div className="cta-callout-noise" aria-hidden="true" />
      <div className="cta-callout-layout">
        {title ? <div className="cta-callout-title-row">
            <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 28 28" width="14" height="14" className="cta-callout-icon shrink-0 text-zinc-800 dark:text-zinc-200" aria-hidden="true">
              <g fill="none" fillRule="nonzero">
                <path d="M28 0v28H0V0h28ZM14.691833333333335 27.134333333333334l-0.012833333333333334 0.0023333333333333335 -0.08283333333333333 0.04083333333333334 -0.023333333333333334 0.004666666666666667 -0.016333333333333335 -0.004666666666666667 -0.08283333333333333 -0.04083333333333334c-0.011666666666666667 -0.004666666666666667 -0.022166666666666668 -0.0011666666666666668 -0.028000000000000004 0.005833333333333334l-0.004666666666666667 0.011666666666666667 -0.019833333333333335 0.49933333333333335 0.005833333333333334 0.023333333333333334 0.011666666666666667 0.015166666666666667 0.12133333333333333 0.08633333333333333 0.0175 0.004666666666666667 0.014000000000000002 -0.004666666666666667 0.12133333333333333 -0.08633333333333333 0.014000000000000002 -0.018666666666666668 0.004666666666666667 -0.019833333333333335 -0.019833333333333335 -0.4981666666666667c-0.0023333333333333335 -0.011666666666666667 -0.0105 -0.019833333333333335 -0.019833333333333335 -0.021Zm0.3091666666666667 -0.13183333333333336 -0.015166666666666667 0.0023333333333333335 -0.21583333333333335 0.1085 -0.011666666666666667 0.011666666666666667 -0.0035000000000000005 0.012833333333333334 0.021 0.5016666666666667 0.005833333333333334 0.014000000000000002 0.009333333333333334 0.008166666666666668 0.23450000000000004 0.1085c0.014000000000000002 0.004666666666666667 0.026833333333333334 0 0.03383333333333334 -0.009333333333333334l0.004666666666666667 -0.016333333333333335 -0.03966666666666667 -0.7163333333333334c-0.0035000000000000005 -0.014000000000000002 -0.011666666666666667 -0.023333333333333334 -0.023333333333333334 -0.025666666666666667Zm-0.8341666666666667 0.0023333333333333335a0.026833333333333334 0.026833333333334334 0 0 0 -0.0315 0.007000000000000001l-0.007000000000000001 0.016333333333333335 -0.03966666666666667 0.7163333333333334c0 0.014000000000000002 0.008166666666666668 0.023333333333333334 0.019833333333333335 0.028000000000000004l0.0175 -0.0023333333333333335 0.23450000000000004 -0.1085 0.011666666666666667 -0.009333333333333334 0.004666666666666667 -0.012833333333333334 0.019833333333333335 -0.5016666666666667 -0.0035000000000000005 -0.014000000000000002 -0.011666666666666667 -0.011666666666666667 -0.21466666666666667 -0.10733333333333334Z" strokeWidth="1.1667" />
                <path fill="currentColor" d="M14 2.916666666666667A1.75 1.75 0 0 1 15.750000000000002 4.666666666666667v6.302333333333334L21.207666666666668 7.816666666666667a1.75 1.75 0 0 1 1.75 3.031L17.5 14l5.457666666666667 3.151166666666667a1.75 1.75 0 0 1 -1.75 3.031l-5.457666666666667 -3.1500000000000004V23.333333333333336a1.75 1.75 0 0 1 -3.5 0v-6.302333333333334L6.792333333333334 20.183333333333337a1.75 1.75 0 1 1 -1.75 -3.031L10.5 14 5.042333333333334 10.848833333333333a1.75 1.75 0 0 1 1.75 -3.031l5.457666666666667 3.1500000000000004V4.666666666666667A1.75 1.75 0 0 1 14 2.916666666666667Z" strokeWidth="1.1667" />
              </g>
            </svg>
            <p className="cta-callout-title min-w-0 font-semibold text-zinc-800 dark:text-zinc-200">
              {title}
            </p>
          </div> : null}
        <div className={`cta-callout-body text-sm leading-normal text-zinc-800 dark:text-zinc-200${title ? " cta-callout-body--indented" : ""}`}>
          {children}
        </div>
        <a href={href} target={target} rel={linkRel} onClick={handleCtaClick} data-docs-cta={trackingEvent || undefined} className="cta-callout-button inline-flex items-center justify-center gap-1 rounded-full bg-white px-3 py-1.5 text-sm font-semibold transition hover:bg-zinc-100 focus-visible:outline focus-visible:outline-2 focus-visible:outline-offset-2 focus-visible:outline-white/50 dark:bg-white dark:hover:bg-zinc-200">
          {buttonLabel}
          <span className="cta-callout-button-arrow" aria-hidden="true">
            →
          </span>
        </a>
      </div>
    </section>;
};

Use `blnk.Transactions.refund` to refund a transaction.

<Steps>
  <Step title="Call the method">
    <Tabs>
      <Tab title="Queued refund">
        Omit the optional body to queue the refund using Core defaults. See [Refunds](/transactions/refunds).

        ```typescript blnk.Transactions.refund wrap theme={"system"}
        const response = await blnk.Transactions.refund(
          'txn_c4e70eb8-e4d6-4e04-a2e2-92a43b969e0c',
        );
        ```

        | Field | Type | Description |
        | :- | :- | :- |
        | `transactionId` | `string` | Transaction ID of the applied transaction to refund. |
      </Tab>

      <Tab title="Skip queue">
        Process the refund synchronously instead of queuing.

        ```typescript blnk.Transactions.refund wrap {4} theme={"system"}
        const response = await blnk.Transactions.refund(
          'txn_c4e70eb8-e4d6-4e04-a2e2-92a43b969e0c',
          {
            skip_queue: true,
          },
        );
        ```

        | Field | Type | Description |
        | :- | :- | :- |
        | `skip_queue` | `boolean` | When `true`, process the refund synchronously instead of queuing. |
      </Tab>

      <Tab title="Description and metadata">
        Set a narration and merge metadata onto the copy inherited from the original. See [Refunds](/transactions/refunds#description-and-metadata).

        ```typescript blnk.Transactions.refund wrap {4-9} theme={"system"}
        const response = await blnk.Transactions.refund(
          'txn_c4e70eb8-e4d6-4e04-a2e2-92a43b969e0c',
          {
            description: 'Refund for ticket #4821',
            meta_data: {
              type: 'refund',
              reason: 'goodwill',
            },
          },
        );
        ```

        | Field | Type | Description |
        | :- | :- | :- |
        | `description` | `string` | Narration for the refund. When omitted or empty, the refund copies the original. |
        | `meta_data` | `Record<string, unknown>` | Merged onto metadata inherited from the original. Keys you send replace matching keys. |
      </Tab>

      <Tab title="Dry run">
        Preview the refund without writing anything. See [Dry-run transactions](/transactions/dry-run).

        ```typescript blnk.Transactions.refund wrap {4} theme={"system"}
        const preview = await blnk.Transactions.refund(
          'txn_c4e70eb8-e4d6-4e04-a2e2-92a43b969e0c',
          {
            dry_run: true,
          },
        );
        ```

        | Field | Type | Description |
        | :- | :- | :- |
        | `dry_run` | `true` | Return a `TransactionPreview` without creating a refund or consuming a reference. |
      </Tab>
    </Tabs>
  </Step>

  <Step title="Save the refund transaction ID">
    On a posted refund, use `response.data.transaction_id` to track it. Check `parent_transaction` to confirm it links to the original.

    A dry run has no `transaction_id`. Check `would_apply` instead.
  </Step>

  <Step title="Response">
    <Tabs>
      <Tab title="Queued refund">
        ```json 201 Created wrap expandable theme={"system"}
        {
          "amount": 1250.34,
          "precision": 100,
          "precise_amount": 125034,
          "transaction_id": "txn_af70986c-fbdc-450a-bf81-c1af034ce840",
          "parent_transaction": "txn_c4e70eb8-e4d6-4e04-a2e2-92a43b969e0c",
          "source": "bln_f344b673-e855-4bda-b769-3e94a02c1941",
          "destination": "@WorldUSD",
          "reference": "txn_c4e70eb8-e4d6-4e04-a2e2-92a43b969e0c_refund",
          "currency": "USD",
          "description": "Card payment on Stripe",
          "status": "QUEUED",
          "hash": "0b9c25fb5b00d6c71cb4ca87026bf6dc316e63353d3330deb588bd0b3d74dcc0",
          "created_at": "2024-11-26T09:33:35.265582042Z"
        }
        ```
      </Tab>

      <Tab title="Skip queue">
        ```json 201 Created wrap expandable theme={"system"}
        {
          "amount": 1250.34,
          "precision": 100,
          "precise_amount": 125034,
          "transaction_id": "txn_4c8be5c7-7c40-493f-b4a1-c09fcf8e7e7b",
          "parent_transaction": "txn_c4e70eb8-e4d6-4e04-a2e2-92a43b969e0c",
          "source": "bln_f344b673-e855-4bda-b769-3e94a02c1941",
          "destination": "@WorldUSD",
          "reference": "txn_c4e70eb8-e4d6-4e04-a2e2-92a43b969e0c_refund",
          "currency": "USD",
          "description": "Card payment on Stripe",
          "status": "APPLIED",
          "hash": "587dec3f5819f2a1e6f5b016fd97153334a3b6c9568475349911ce6356ec31fa",
          "created_at": "2024-11-26T09:33:35.265582042Z"
        }
        ```
      </Tab>

      <Tab title="Description and metadata">
        ```json 201 Created wrap expandable theme={"system"}
        {
          "amount": 1250.34,
          "precision": 100,
          "precise_amount": 125034,
          "transaction_id": "txn_c5d9e2a1-7b4f-4a3c-9e8d-1f6a2b4c8d30",
          "parent_transaction": "txn_c4e70eb8-e4d6-4e04-a2e2-92a43b969e0c",
          "source": "bln_f344b673-e855-4bda-b769-3e94a02c1941",
          "destination": "@WorldUSD",
          "reference": "txn_c4e70eb8-e4d6-4e04-a2e2-92a43b969e0c_refund",
          "currency": "USD",
          "description": "Refund for ticket #4821",
          "status": "QUEUED",
          "hash": "0b9c25fb5b00d6c71cb4ca87026bf6dc316e63353d3330deb588bd0b3d74dcc0",
          "created_at": "2024-11-26T09:33:35.265582042Z",
          "meta_data": {
            "type": "refund",
            "channel": "card",
            "reason": "goodwill"
          }
        }
        ```
      </Tab>

      <Tab title="Dry run">
        ```json 200 OK wrap expandable {2-3} theme={"system"}
        {
          "dry_run": true,
          "would_apply": true,
          "status": "APPLIED",
          "reference": "txn_c4e70eb8-e4d6-4e04-a2e2-92a43b969e0c_refund",
          "currency": "USD",
          "amount": 1250.34,
          "precise_amount": "125034",
          "precision": 100,
          "notes": [
            "projected refund of transaction txn_c4e70eb8-e4d6-4e04-a2e2-92a43b969e0c"
          ],
          "balances": [
            {
              "balance_id": "bln_f344b673-e855-4bda-b769-3e94a02c1941",
              "role": "source",
              "currency": "USD",
              "current_balance": "125034",
              "current_available": "125034",
              "current_credit_balance": "125034",
              "current_debit_balance": "0",
              "current_inflight_debit_balance": "0",
              "current_inflight_credit_balance": "0",
              "resulting_balance": "0",
              "resulting_available": "0",
              "resulting_credit_balance": "125034",
              "resulting_debit_balance": "125034",
              "resulting_inflight_debit_balance": "0",
              "resulting_inflight_credit_balance": "0"
            },
            {
              "balance_id": "bln_d5cbde84-d20a-485b-8ce8-6677d782c3a1",
              "role": "destination",
              "currency": "USD",
              "current_balance": "0",
              "current_available": "0",
              "current_credit_balance": "0",
              "current_debit_balance": "0",
              "current_inflight_debit_balance": "0",
              "current_inflight_credit_balance": "0",
              "resulting_balance": "125034",
              "resulting_available": "125034",
              "resulting_credit_balance": "125034",
              "resulting_debit_balance": "0",
              "resulting_inflight_debit_balance": "0",
              "resulting_inflight_credit_balance": "0"
            }
          ]
        }
        ```
      </Tab>
    </Tabs>

    | Field | Type | Description |
    | :- | :- | :- |
    | `transaction_id` | `string` | ID of the new refund transaction. Omitted on a dry run. |
    | `parent_transaction` | `string` | Original transaction being refunded. |
    | `source` | `string` | Original destination, now the source of the refund. |
    | `destination` | `string` | Original source, now the destination of the refund. |
    | `status` | `string` | Status of the refund transaction. |
  </Step>
</Steps>

***

## Need help?

We are very happy to help you make the most of Blnk, regardless of whether it is your first time or you are switching from another tool.

To ask questions or discuss issues, please [contact us](mailto:support@blnkfinance.com) or [join our Discord community](https://discord.gg/7WNv94zPpx).

<CtaCallout title="Connect your ledger to Blnk Cloud" href="https://cloud.blnkfinance.com/auth/sign-up?utm_source=blnk_docs&utm_medium=documentation&utm_campaign=need-help" buttonLabel="Open Blnk Cloud" trackingEvent="clicked_cloud_signup">
  Sign up and manage your ledger with our back-office dashboard. You can invite teammates to collaborate and manage your ledger operations directly from the dashboard.
</CtaCallout>

<RelatedTopics
  items={[
{ title: "Refunds", href: "/transactions/refunds" },
{ title: "Dry-run transactions", href: "/transactions/dry-run" },
{ title: "Transaction lifecycle", href: "/transactions/transaction-lifecycle" },
{ title: "Parent transactions", href: "/transactions/parent-transactions" },
{ title: "Refund transaction", href: "/reference/refund-transaction" },
]}
/>


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