---
title: "Bank of Canada own balance sheet (month-end)"
method: GET
path: "/api/v1/boc/balance-sheet"
tags: ["Central Banks & Monetary"]
---

# Bank of Canada own balance sheet (month-end)

`GET /api/v1/boc/balance-sheet`

Bank of Canada assets and liabilities at month-end (group `B1_MONTHLY`). Covers Government of Canada securities held, foreign-currency claims, Members of Payments Canada deposits, notes in circulation, and capital. Reports the footprint of monetary-policy operations including the evolution through quantitative easing (2020 to 2022) and subsequent balance-sheet normalization.

For weekly detail use the `B2_TABLE` group via `/boc/group/B2_TABLE`.

## Query parameters

- `recent_years` integer — Number of years of balance-sheet history.

## Response `200`

Month-end Bank of Canada assets and liabilities.

- EnvelopeBocBalanceSheetData
  - `data` BocBalanceSheetData, required — Bank of Canada own balance sheet (assets, liabilities, currency in circulation).
    - `seriesDetail` object, required — Map of series code to metadata (label, frequency, unit).
    - `count` integer, required — Number of observations in this response.
    - `observations` BocObservation[], required — Array of observations, each with `d` plus one float per series code.
      - `d` string, nullable — Observation date (YYYY-MM-DD).
  - `meta` SugraMeta, required — Metadata attached to every /api/v1/* response envelope.
    - `endpoint` string, required — Requested endpoint path.
    - `data_time` string, required — ISO 8601 UTC timestamp of the source data, not of the request.
    - `response_time` string, required — ISO 8601 UTC timestamp when this response was produced.
    - `provider` string, required — API name and version.
    - `source` string, nullable — Identifier of the primary upstream source used for this response.
    - `attribution` string, nullable — Human-readable attribution mandated by an upstream source (e.g. a securities regulator or self-regulatory organization). Present only on responses whose source requires the owner and source to be clearly identified. Do not remove or alter it when using the response.
    - `fallback_used` boolean, nullable — True when the primary source failed and a fallback produced the data.
    - `fallback_chain` string[], nullable — Ordered list of sources attempted, in the order they were tried.
    - `cached` boolean, nullable — True when this response was served from the internal cache.
    - `stale` boolean, nullable — True when the cached response was returned after the upstream rate-limited or errored. Clients can use this to detect degraded data.

## Other responses

- `401` — Missing or invalid `x-api-key` header. JSON body with a stable `code` distinguishing `missing_api_key` (no header sent) from `invalid_api_key` (header sent, key not accepted); any other 401 source carries the generic `unauthorized` with its detail as `reason`. Plus `hint`. `plan` is always null on 401 - an unauthenticated request has no plan; quota exhaustion is 429, not 401.
- `422` — Validation Error
- `429` — Daily rate limit exceeded. Check `X-RateLimit-Reset` for the next window.
- `503` — Upstream source is temporarily unavailable. Retry after a short delay.

---

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