How long does it take for a insurance company to process a annuity benefit claim?

It will vary based upon the company and any complexities encountered in processing, such as claims by multiple claimants. However, because annuities are essentially insurance products, State insurance regulators regulate them. State statutes generally provide a time frame for payment. If the time frame cannot be met, the same statutes normally also have provisions for notifying the parties involved as to what further material is needed or other procedures to be followed.