The unused allowance next door: a 2026-27 Marriage Allowance audit
Marriage Allowance can move part of one partner’s personal allowance to the other, reducing tax by up to £252 in 2026-27. The claim is straightforward, but eligibility is tested year by year and a rise into higher rates can unwind it. This PrimoTax audit covers the backdating window, the pension and child benefit interactions, and the online checklist.