Aviva paid out 93.1% of critical illness claims in 2019, 85.7% of income protection claims and 98.6% of life insurance claims.
The life office said that in total, it paid out £982m in protection claims, with more than 26,500 people receiving benefits.
The provider also said it paid out £5m in CI claims for children, to 263 families.
A spokesman for Aviva said that 48% of children’s CI claims were for cancer, “particularly” blood cancer.
The provider has introduced a new proposition – dubbed “Project Teddy” – which includes initiatives including a gift-giving service, where claims handlers will, after getting to know family members, send a bespoke present to them during the difficult time of claims process.