In 2010, an initial claim for Pension Credit cost £350 to process and another £50 to review each year. I have no up to date figures but one can only assume that, 15 years on, it is more expensive.
For all the trumpeting about encouraging 800,000 more eligible people to claim Pension Credit the DWP figures provide a different picture of what has actually happened:
www.gov.uk/government/statistics/pension-credit-applications-and-awards-february-2025/pension-credit-applications-and-awards-february-2025
For year-to-date 2024 to 2025, DWP has received 300,000 Pension Credit applications, a significant increase compared to 251,100 Pension Credit applications received across the whole of 2023 to 2024 with 5 weeks of 2024 to 2025 remaining.
Comparing the period since the announcement that Winter Fuel Payments (WFP) will be means tested (29 July 2024) with the comparable 2023 to 2024 period, DWP has:
Received 235,000 Pension Credit claims, an 81% increase or 105,100 extra applications on 2023 to 2024. Cleared 232,200 Pension Credit claims, a 92% increase or 111,100 extra clearances on 2023 to 2024: of which, 117,800 Pension Credit claims have been awarded, a 64% increase or 45,800 extra awards on 2023 to 2024 (114,500 claims have not been awarded, a 133% increase or 65,400 extra not awarded claims on 2023 to 2024).
So as an experiment to encourage 800,000 people to claim Pension Credit, it has been a failure, just as it was when Gordon Brown first intoduced WFP in 1997 with a higher payment to those in receipt of (what was then) Income Support - to encourage more people to claim IS. They didn't. That was why the payment was soon made universal and should have remained so.
For the record, the National Insurance Fund, from which SP and other contributory benefits are paid, is awash with money, more than three times in reserve than there needs to be, some 86 billion compared to the around 25 billion contingency required.
www.gov.uk/government/news/up-rating-report-2025-report-on-the-national-insurance-fund