Tex. Insurance Code § 425.059

(a) This section applies to an individual annuity or pure endowment contract issued on or after January 1, 1979, and an annuity or pure endowment purchased on or after January 1, 1979, under a group annuity or pure endowment contract. This section also applies to an annuity or pure endowment contract issued by an insurer after the date specified in a written notice:

(1) that was filed with the State Board of Insurance after June 14, 1973, but before January 1, 1979; and

(2) under which the insurance company filing the notice elected to comply before January 1, 1979, with former Section 4, Article 3.28, with respect to individual or group annuities and pure endowment contracts as specified by the company in the notice.

(b) Except as provided by Section 425.060, 425.061, 425.062, or 425.063, the minimum standard for the valuation of an individual or group annuity or pure endowment contract, excluding any disability or accidental death benefits in the contract, is the commissioners reserve valuation method described by Sections 425.064 and 425.065, computed using the table prescribed by this section and with interest at the following interest rate, as applicable:

(1) for an individual annuity or pure endowment contract issued before August 29, 1977, other than an individual single premium immediate annuity contract, four percent;

(2) for an individual single premium immediate annuity contract issued before August 29, 1977, six percent;

(3) for an individual annuity or pure endowment contract issued on or after August 29, 1977, other than an individual single premium immediate annuity contract or an individual single premium deferred annuity or pure endowment contract, 4-1/2 percent;

(4) for an individual single premium immediate annuity contract issued on or after August 29, 1977, 7-1/2 percent;

(5) for an individual single premium deferred annuity or pure endowment contract issued on or after August 29, 1977, 5-1/2 percent;

(6) for an annuity or pure endowment purchased before August 29, 1977, under a group annuity or pure endowment contract, six percent; or

(7) for an annuity or pure endowment purchased on or after August 29, 1977, under a group annuity or pure endowment contract, 7-1/2 percent.

(c) For an individual annuity or pure endowment contract issued before August 29, 1977, the applicable table is:

(1) the 1971 Individual Annuity Mortality Table; or

(2) a modification of that table approved by the commissioner.

(d) For an individual annuity or pure endowment contract issued on or after August 29, 1977, including an individual single premium immediate annuity contract, the applicable table is:

(1) the 1971 Individual Annuity Mortality Table;

(2) an individual annuity mortality table adopted after 1980 by the National Association of Insurance Commissioners that is approved by the commissioner by rule for use in determining the minimum standard of valuation for a specified type of contract to which this subsection applies; or

(3) a modification of one of those tables approved by the commissioner.

(e) For an annuity or pure endowment purchased before August 29, 1977, under a group annuity or pure endowment contract, the applicable table is:

(1) the 1971 Group Annuity Mortality Table; or

(2) a modification of that table approved by the commissioner.

(f) For an annuity or pure endowment purchased on or after August 29, 1977, under a group annuity or pure endowment contract, the applicable table is:

(1) the 1971 Group Annuity Mortality Table;

(2) a group annuity mortality table adopted after 1980 by the National Association of Insurance Commissioners that is approved by the commissioner by rule for use in determining the minimum standard of valuation for an annuity or pure endowment to which this subsection applies; or

(3) a modification of one of those tables approved by the commissioner.