---
title: "Monthly budget deficit/surplus"
method: GET
path: "/api/v1/treasury/deficit"
tags: ["Public Finance & Government"]
---

# Monthly budget deficit/surplus

`GET /api/v1/treasury/deficit`

Monthly receipts, outlays, and deficit/surplus. Current month + FYTD.

## Response `200`

Monthly federal budget records.

- EnvelopeTreasuryDailyStatementData
  - `data` TreasuryDailyStatementData, required
    - `records` TreasuryRecord[], nullable — Array of record rows.
      - `auction_date` string, nullable — Auction date (YYYY-MM-DD).
      - `security_type` string, nullable — Treasury security type (Bill, Note, Bond, TIPS, FRN, CMB).
      - `security_term` string, nullable — Security term length (e.g. 4-Week, 10-Year).
      - `cusip` string, nullable — CUSIP security identifier.
      - `high_yield` string, nullable — High-yield rate at auction.
      - `bid_to_cover_ratio` string, nullable — Bid-to-cover ratio at auction.
      - `offering_amt` string, nullable — Total offering amount (USD).
      - `total_accepted` string, nullable — Total amount accepted at auction (USD).
    - `total_count` union — Total number of available records across all pages.
      - integer
      - number
    - `total_pages` union — Total number of pages.
      - integer
      - number
  - `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.
- `429` — Daily rate limit exceeded. Check `X-RateLimit-Reset` for the next window.
- `503` — Upstream source is temporarily unavailable. Retry after a short delay.

## Changes

- **2026-08-28** `560e8847c7b3` — 6 breaking
  - the response property `data/records` became optional for the status `200`
  - the response property `data/total_count` became optional for the status `200`
  - the response property `data/total_pages` became optional for the status `200`
  - response property `data/records` list-of-types was widened by adding types `null` to media type `application/json` of response `200`
  - …2 more
- **2026-08-08** `4c4530760ba1` — 12 info
  - added the optional property `code` to the response with the `401` status
  - added the optional property `code` to the response with the `429` status
  - added the optional property `code` to the response with the `503` status
  - added the optional property `hint` to the response with the `401` status
  - …8 more

[Change history](https://skmtc.dev/sugra/apis/sugra-api/changes/api/v1/treasury/deficit/get.md)

---

[API](https://skmtc.dev/sugra/apis/sugra-api.md) · [All operations](https://skmtc.dev/sugra/apis/sugra-api/llms.txt) · [OpenAPI document](https://skmtc-service-production.skmtc.workers.dev/v1/apis/sugra/sugra-api/revisions/87582f2e0110/schema)