Tamarly Lists · Wednesday · Borrowing costs

10 countries where government borrowing got more expensive

6 of 6 countries saw their 10-year government bond yield rise in the latest month of OECD data; the 6 below had the largest increase.

As of . Research from public records, not investment advice.

  1. France: 10-year yield 4.48% in September 2026, up 45 basis points on the month before. Up 96 basis points on a year earlier.
  2. Spain: 10-year yield 3.92% in September 2026, up 29 basis points on the month before. Up 66 basis points on a year earlier.
  3. Germany: 10-year yield 3.47% in September 2026, up 28 basis points on the month before. Up 78 basis points on a year earlier.
  4. United Kingdom: 10-year yield 5.24% in September 2026, up 25 basis points on the month before. Up 55 basis points on a year earlier.
  5. Japan: 10-year yield 3.05% in September 2026, up 11 basis points on the month before. Up 141 basis points on a year earlier.
  6. Italy: 10-year yield 3.99% in August 2026, up 11 basis points on the month before. Up 45 basis points on a year earlier.

How this list is made

Monthly long-term government bond yields (10 years) from the OECD, published on FRED, latest month against the month before. A higher yield means a government pays more to borrow for 10 years. Monthly averages, so the latest month runs 1 to 2 months behind the calendar.

Sources: OECD Main Economic Indicators via FRED.

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