MFS^® VARIABLE INSURANCE PORTFOLIOS

Performance information prior to April 29, 2016, reflects time periods when the fund was not considered a U.S. Government money market fund and had different investment policies and strategies. The fund's investment policies and strategies changed effective April 29, 2016.

Performance results reflect any applicable expense subsidies and waivers in effect during the periods shown. Without such subsidies and waivers the portfolios' performance results would be less favorable. All results assume the reinvestment of dividends and capital gains.

Withdrawals of taxable amounts from variable annuity contracts prior to age 59½ may be subject to an additional 10% federal tax penalty as well as income tax. Amounts withdrawn from a variable insurance contract will reduce the death benefit and withdrawals of earnings will be subject to income tax.

Fund Information

Included in the Class IC and Class SC total returns for the year ended December 31, 2017 are proceeds received from a non-recurring litigation settlement against Household International Inc. Had these proceeds not been included the 1-year total returns would have been lower by 0.96%.

You could lose money by investing in this investment option. Although the money market fund in which your investment option invests (the "underlying fund") seeks to preserve its value at $1.00 per share, the underlying fund cannot guarantee it will do so. An investment in this investment option is not insured or guaranteed by the Federal Deposit Insurance Corporation or any other government agency. The underlying fund's sponsor has no legal obligation to provide financial support to the underlying fund, and you should not expect that the sponsor will provide financial support to the underlying fund at any time.

A Word About Variable Products

Issued by insurance companies, variable annuity and variable life insurance contracts allow investors to accumulate money on a tax deferred basis for long-term financial goals. Mortality and expense charges (which compensate the insurance company for insurance risks it assumes under the contract), surrender charges (typically levied if a contract holder cancels it within a certain period following initial purchase), and an annual maintenance charge are among the fees typically associated with these types of variable products.
Also keep in mind that any income guarantees are subject to the claims-paying ability of the issuing insurance company, and that contract owners have options when a contract's payout phase begins. Generally, investors may take their money in a lump sum, make discretionary or systematic distributions, or they can annuitize.
Please refer investors to your variable annuity or life insurance contract as well as the underlying fund prospectus(es) for more detailed information and other important considerations, which should be read carefully before investing.

Before purchasing any variable product, consider the objectives, risks, charges, and expenses associated with the underlying investment option(s) and those of the product itself. For a prospectus, or summary prospectus if available, containing this and other information contact the issuing insurance company. Read the prospectus carefully before you invest.