US Treasury Interest Expense On The Public Debt — Monthly By Category, Group And Security Type, 2010–2026
7,321 month-end rows of interest expense on the public debt (public issues and Government Account Series) across 47 expense group and security-type combinations: accrued interest, amortised discount and premium, savings bonds, TIPS inflation compensation and cash-basis GAS payments, each with the month's expense and the fiscal-year-to-date total in US dollars, from the Treasury's Fiscal Data "Interest Expense on the Public Debt Outstanding" table as of 2026-09-06.
Use Cases
- Federal interest-burden tracking
- Decomposing interest cost by security type
- Fiscal inputs for rates and deficit models
Methodology
Paged fetch of the Fiscal Data API v2 interest_expense endpoint in table line order; negative amounts (amortised premium, TIPS deflation adjustments) kept as reported.
Update Schedule
Static snapshot. Published monthly, a few business days after month end; refresh weekly.
Attribution
Source: U.S. Department of the Treasury, Bureau of the Fiscal Service (public domain).
Schema
| name | type |
|---|---|
| record_date | date |
| expense_catg_desc | string |
| expense_group_desc | string |
| expense_type_desc | string |
| month_expense_usd | number |
| fiscal_ytd_expense_usd | number |
Sample Data
| record_date | expense_catg_desc | expense_type_desc | month_expense_usd | expense_group_desc | fiscal_ytd_expense_usd |
|---|---|---|---|---|---|
| 2010-05-31 | INTEREST EXPENSE ON PUBLIC ISSUES | Treasury Notes | 10847836350.33 | ACCRUED INTEREST EXPENSE | 80068953707.26 |
| 2010-05-31 | INTEREST EXPENSE ON PUBLIC ISSUES | Treasury Bonds | 4150043194.57 | ACCRUED INTEREST EXPENSE | 30945734825.83 |
| 2010-05-31 | INTEREST EXPENSE ON PUBLIC ISSUES | Inflation Protected Securities (TIPS) | 1298913225.58 | ACCRUED INTEREST EXPENSE | 8624531588.49 |
| 2010-05-31 | INTEREST EXPENSE ON PUBLIC ISSUES | Int. Expense Inflation Compensation (TIPS) | 2011483647.82 | ACCRUED INTEREST EXPENSE | 5598895228.37 |
| 2010-05-31 | INTEREST EXPENSE ON PUBLIC ISSUES | Domestic Series - C/I's & Demand Deposits | 0 | ACCRUED INTEREST EXPENSE | 189.84 |
Get this via API
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# Claude.ai / Claude Desktop: Settings -> Connectors -> Add custom connector
# Cursor / Claude Code / others: mcp.json
{
"mcpServers": {
"dagentbase": {
"url": "https://dagentbase.com/api/mcp",
"headers": { "Authorization": "Bearer dm_live_YOUR_KEY" }
}
}
}
# 2. Then ask your agent, in plain language:
# "Preview 'US Treasury Interest Expense on the Public Debt — Monthly by Category, Group and Security Type, 2010–2026' and, if it fits, claim it and download the files."
# Tools it will use: search_listings -> preview_listing -> purchase_listing -> get_download_urls
# 1. Add dAgentBase once, in any MCP client. No install, no vendor keys.
# Claude.ai / Claude Desktop: Settings -> Connectors -> Add custom connector
# Cursor / Claude Code / others: mcp.json
{
"mcpServers": {
"dagentbase": {
"url": "https://dagentbase.com/api/mcp",
"headers": { "Authorization": "Bearer dm_live_YOUR_KEY" }
}
}
}
# 2. Then ask your agent, in plain language:
# "Preview 'US Treasury Interest Expense on the Public Debt — Monthly by Category, Group and Security Type, 2010–2026' and, if it fits, claim it and download the files."
# Tools it will use: search_listings -> preview_listing -> purchase_listing -> get_download_urlsone time · open license
Details
Available formats