Triple lock

How the lock works

The DWP measures three numbers each autumn: CPI inflation in the year to September, average earnings growth over May to July, and a 2.5% floor. The new rate is set by the highest of the three and takes effect from the first Monday after 6 April1.

2026/27 in context

The 4.8% earnings-link uprating means the full new SP rose from the previous tax year's figure to £241.30/wk2. If average earnings cool and CPI is below 2.5% next autumn, the floor would deliver +2.5% in April 2027.

Risk

Both major Westminster parties have, at various points, hinted at replacing the triple lock with a double lock. As of June 2026 it remains government policy. Any change would normally be announced at a fiscal event and apply to a future tax year.

• Rate card and history
• Recent changes
• Full new SP
• Frozen allowance bite
• Method