Savers across the UK are rushing to boost their pension contributions amidst fears of potential tax relief changes in the upcoming Budget. The shift in saving behaviour has been primarily driven by concerns over what changes Chancellor Rachel Reeves might introduce in her Autumn Budget on October 30. There has reported an unprecedented surge in Self-Invested Personal Pension (SIPP) contributions, Bestinvest research showed. The firm saw a tenfold increase in September compared to the same month last year, with contributions also quadrupling from August this year. Alice Haine, personal finance …