The short answer
The Mathematics Admissions Test is finished. Oxford ran the MAT from 2007 to 2025; as part of its move to the shared UAT-UK testing system, Oxford replaced it with the TMUA for Mathematics, Computer Science and their joint honours from 2027 entry (applications from autumn 2026). If you're preparing now, prepare for the TMUA.
What actually changed
The two tests reward the same underlying mathematics but in different clothes. The MAT was Oxford's own paper: a multiple-choice section plus long-answer questions with written working. The TMUA is fully multiple-choice — two 75-minute papers, twenty questions each, no calculator — and adds something the MAT never examined directly: Paper 2's formal logic and proof, which most school routes barely touch. It's also a shared test: one October sitting now serves Oxford, Cambridge (Economics, CS, and Maths shortlisting), Imperial, LSE, Warwick, Durham, UCL and others — one preparation, many doors.
If you were preparing for the MAT
Nothing is wasted. Your problem-solving work transfers wholesale; old MAT multiple-choice sections remain excellent TMUA Paper 1 practice. Two adjustments: add the Paper 2 logic-and-proof toolkit as its own short course (the official Notes on Logic and Proof on UAT-UK is the place to start), and retire the MAT's long-answer questions from test prep — though don't discard them; they are close to ideal interview practice, which is where that style of extended reasoning now lives.
One caution about old advice
Guides, forums and even some tutoring companies still describe the MAT as current. Any Oxford maths admissions advice that doesn't mention the TMUA was written before 2026 — treat everything else in it with matching suspicion, including score benchmarks and timelines.
Related guides