What Is a Sovereign Credit Rating? How Agencies Grade Government Debt

A sovereign credit rating is an agency's opinion of how able and willing a national government is to repay its debt in full and on time, as a letter grade.

Governments are rated much as companies are, by the same agencies and on the same letter scales, and the grades are quoted whenever a country's borrowing comes up. This page covers what a sovereign rating is and is not, how the main scales line up, what outlooks and reviews mean, the EU's rules on when sovereign ratings can be published, how a rating differs from a sovereign bond spread, and how Kresmion shows both. It is descriptive throughout.

What a sovereign rating is

The EU's credit rating agency regulation defines a credit rating as an opinion on the creditworthiness of an entity or a debt instrument, issued using an established and defined ranking system of rating categories. Among other cases, a sovereign rating is such a rating where the rated entity, or the issuer of the debt, is a state or a regional or local authority of a state; this page is about ratings of national governments. The key word is opinion: a rating is an agency's assessment of credit risk, not a measurement, a guarantee or a price.

Several distinctions matter when reading one.

• Issuer and issue. An agency can rate the government as a borrower, its long-term debt, and its short-term debt separately.
• Foreign and local currency. A government can carry two long-term ratings, one for debt in foreign currency and one for debt in its own currency, and the two can differ. Kresmion's panel, described below, shows the rating its source gives, which does not always say which currency it covers.
• Solicited and unsolicited. A government can ask and pay to be rated, or an agency can rate it without a request. The regulation defines an unsolicited sovereign rating as one assigned other than upon request.

In the United States, agencies can register with the Securities and Exchange Commission as nationally recognized statistical rating organizations (NRSROs). The SEC's list, as read on 1 October 2026, includes S&P Global Ratings, Moody's Investors Service, Fitch Ratings, DBRS, Kroll Bond Rating Agency and Japan Credit Rating Agency, among others. In the EU, agencies are registered or certified by the European Securities and Markets Authority (ESMA), whose register also includes Scope Ratings and Creditreform Rating, among others.

How the scales line up

The agencies use different symbols for the same idea. The European Central Bank publishes a table that maps each accepted agency's long-term grades onto the harmonised scale of the Eurosystem (the ECB and the euro area's national central banks), which makes the comparison easy to read.

Each single step along an agency's scale, from AA+ to AA for example, is called a notch, so one Eurosystem step can span several notches. The ECB's table writes the Morningstar DBRS modifiers in short form, as AAH or AAL.

The line between the third and fourth steps is the one most often cited. FINRA's glossary describes an investment-grade bond as one rated Baa or better by Moody's or BBB or better by S&P. Grades below that line are called high-yield or speculative grade, and the scales continue down to the grades used for issuers in or near default. The same threshold appears in central bank rules: the ECB sets credit quality step 3 on its scale as the minimum credit quality requirement for the assets it accepts as collateral in its monetary policy operations, with stricter steps for some asset types.

Outlooks, reviews and when ratings can change

Alongside the grade, agencies publish an outlook. The regulation defines a rating outlook as an opinion on the likely direction of a credit rating over the short term, the medium term or both. A stable outlook points in neither direction; a positive or negative outlook points to the direction the agency sees as more likely. Agencies can also place a rating under review, which some call a watch, when they are considering a change on a shorter timetable. An outlook is not a scheduled change: ratings on a negative outlook are sometimes left unchanged, and ratings are sometimes changed without a prior outlook shift.

The EU sets rules on timing for sovereign ratings published there. Each registered agency must publish, at the end of December, a calendar for the next twelve months with at most three dates for unsolicited sovereign ratings and outlooks, as well as the dates for solicited ones, and those dates must fall on a Friday. The ratings must be published after EU regulated markets close and at least one hour before they open. An agency can depart from the calendar only where the regulation allows it, and must explain why. So in the EU, sovereign rating actions are published on Friday evenings, outside market hours.

A rating is not a spread

A rating is an agency's opinion, revised at intervals. A sovereign bond spread is a market price relationship that changes every day: the extra yield investors demand to hold one government's bonds rather than a benchmark's, such as Germany's Bund or US Treasuries. The general idea is covered in what a credit spread is.

The two can disagree, and for reasons other than credit. Kresmion's free sovereign spreads page shows each covered country's 10-year government bond yield and its spread over the German 10-year and the US 10-year Treasury, in basis points, with the 1-month and 12-month change. It is a Kresmion calculation from published monthly yields (the ECB for EU members, the OECD for other countries, the Federal Reserve's H.15 for the US), not a credit rating, and no rating agency is involved. As the page's method note says, a spread mixes credit risk with liquidity and supply, and outside the euro area with currency and inflation expectations, because the bonds are in local currency. A wide spread over the Bund for a country that borrows in its own currency can therefore reflect higher local inflation as much as doubts about repayment.

Sovereign ratings in Kresmion

On Kresmion's signed-in country pages, a ratings panel shows each agency's rating, outlook and action date from one of two sources. The first is the rated government's own debt office or finance ministry page, used only where Kresmion read that site's terms as granting reuse. The second is a rating action reported in the news, shown only after it has been checked against an official source, such as the government's own page or the agency's announcement. Such a row cites both the article and the source it was checked against. For a news-sourced row without an official action date the panel shows the date the action was first reported, and it shows the outlook only if the check confirmed it. Every rating names its agency, and the panel names its source.

Three things are left out by design. There is no average or consensus rating: each agency's opinion stays separate. A change is coloured as an upgrade or a downgrade only when the previous grade is known, either because Kresmion saw it on the same government page or because the confirmed news reports give it, and the row says which. And a country with neither source shows no ratings at all. France was one on 1 October 2026: Kresmion does not reuse its debt agency's page, and no confirmed news report had been added, so the French page showed none, even though agencies rate France.

Honest limitations

A rating is an opinion and can be wrong, and it is revised at intervals rather than continuously, so it can lag events that markets price at once. Agencies can and do disagree by a notch or more on the same government. Kresmion's ratings panel depends on governments' own pages, which can lag an agency's announcement, and on news reports that wait for a check against an official source, so it covers a limited set of countries and can trail an agency's action by days. The sovereign spreads page uses monthly averages that trail the market by several weeks. This page describes scales from the ECB's public mapping and FINRA's glossary; the agencies' own definitions are the authority on what each grade means.

Key takeaways

Frequently asked questions

Who issues sovereign credit ratings?

Credit rating agencies. They include S&P Global Ratings, Moody's, Fitch Ratings, Morningstar DBRS and Scope Ratings. In the US, agencies register with the SEC; in the EU, they are registered or certified by ESMA.

What does investment grade mean for a country?

That its rating sits at BBB- or above on the S&P and Fitch scale, or Baa3 or above on Moody's. FINRA's glossary describes investment-grade bonds as those rated Baa or better by Moody's or BBB or better by S&P.

What is the difference between a rating outlook and a downgrade?

A downgrade changes the rating itself. An outlook is an opinion on the direction the rating may take over the short or medium term, so a negative outlook flags a possible downgrade without making one.

Does a downgrade mean a government will default?

No. A downgrade is an agency's revised opinion that credit risk is higher than before, not a missed payment. The scales keep separate grades for issuers that have defaulted, and several grades sit between investment grade and those.

Is Kresmion's sovereign spread a credit rating?

No. It is the difference between published 10-year government bond yields, calculated by Kresmion. It reflects market pricing, which mixes credit risk with liquidity, supply, currency and inflation expectations, and no rating agency is involved.

This page is information, not investment advice.

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Source: Regulation (EC) No 1060/2009 on credit rating agencies, as amended by Regulation (EU) No 462/2013 (Article 3 definitions, Article 8a sovereign rating calendar, Annex I Section D Part III point 3), consolidated text, https://eur-lex.europa.eu/legal-content/EN/TXT/HTML/?uri=CELEX:02009R1060-20250117 ; UK-retained text of Article 8a on legislation.gov.uk (same wording, with the FCA in place of ESMA), https://www.legislation.gov.uk/eur/2009/1060/article/8a ; US Securities and Exchange Commission, Current NRSROs, https://www.sec.gov/about/divisions-offices/office-credit-ratings/current-nrsros ; ESMA, credit rating agency registration, https://www.esma.europa.eu/credit-rating-agencies/cra-authorisation ; European Central Bank, Eurosystem credit assessment framework and harmonised rating scale, https://www.ecb.europa.eu/mopo/coll/risk/ecaf/html/index.en.html ; FINRA, bond glossary (investment-grade bond), https://www.finra.org/investors/investing/investment-products/bonds ; Kresmion sovereign spreads page (ECB IRS, OECD via FRED, Federal Reserve H.15) and signed-in country ratings panel.

Kresmion Research.