Gender-specific contracts will "not exist" with Aegon if terms, start date and completed direct debit mandate have not been agreed by 20 December.
Aegon's pipeline strategy will rely on a servicing team to support advisers through the applications process and ensure cases are managed efficiently ahead of the deadline.
The team will strive to ensure all outstanding information is completed and will help secure any outstanding information from GPs.
A contract that has not been fully agreed by 20 December will mean new acceptance terms being issued on gender neutral rates.
If acceptance terms and start date has been agreed and form of payment set up by 20 December the start date when the policy goes on-risk can be after the 20 December, but must be within 30 days of the issue of terms.
Rod Mckie, head of at retirement proposition at Aegon, said: "We recognise that the run up to 21 December will be a busy time for advisers and we want to do all that we can to ensure that applications are processed as quickly as possible prior to the deadline.
"Working in partnership with advisers, this dedicated pipeline service team will ensure that we are proactively sourcing all information required to complete business."
He added advisers should continue to use their existing servicing team phone numbers.
