Incorporated herein by reference is a supplement to the prospectus of MFS Total Return Portfolio – Service Class, a series of MFS Variable Insurance Trust II (File No. 2-83616), filed pursuant to Rule 497(e) under the Securities Act of 1933, as amended, on October 29, 2012 (SEC Accession No. 0000912938-12-000461).
| MFS Total Return Portfolio (Prospectus Summary): | MFS Total Return Portfolio | ||||||||||||
| MFS® Total Return Portfolio | ||||||||||||
SUPPLEMENT TO PROSPECTUS The date of this supplement is October 29, 2012.
MFS® Total Return Portfolio Service Class
Effective immediately, the sub-section entitled “Fees and Expenses” beneath the main heading "Summary of Key Information" is restated in its entirety as follows:
Summary of Key Information |
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| Fees and Expenses | ||||||||||||
This table describes the fees and expenses that you may pay when you hold shares of the fund. Expenses have been adjusted to reflect the management fee set forth in the fund's Investment Advisory Agreement. If the fees and expenses imposed by the investment vehicle through which an investment in the fund is made were included, your expenses would be higher. |
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| Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): | ||||||||||||
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| Example | ||||||||||||
This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. If the fees and expenses imposed by the investment vehicle through which an investment in the fund is made were included, your expenses would be higher.
The example assumes that: you invest $10,000 in the fund for the time periods indicated and you redeem your shares at the end of the time periods; your investment has a 5% return each year; and the fund’s operating expenses remain the same. |
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| Although your actual costs will likely be higher or lower, under these assumptions your costs would be: | ||||||||||||
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| Label | Element | Value |
|---|---|---|
| Risk/Return: | rr_RiskReturnAbstract | |
| Document Type | dei_DocumentType | Other |
| Document Period End Date | dei_DocumentPeriodEndDate | Oct. 29, 2012 |
| Registrant Name | dei_EntityRegistrantName | MFS VARIABLE INSURANCE TRUST II |
| Central Index Key | dei_EntityCentralIndexKey | 0000719269 |
| Amendment Flag | dei_AmendmentFlag | false |
| Document Creation Date | dei_DocumentCreationDate | Oct. 29, 2012 |
| Document Effective Date | dei_DocumentEffectiveDate | Oct. 29, 2012 |
| Prospectus Date | rr_ProspectusDate | Apr. 29, 2012 |
| Label | Element | Value |
|---|---|---|
| Risk/Return: | rr_RiskReturnAbstract | |
| Prospectus Date | rr_ProspectusDate | Apr. 29, 2012 |
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MFS Total Return Portfolio (Prospectus Summary): | MFS Total Return Portfolio
|
||
| Risk/Return: | rr_RiskReturnAbstract | |
| Risk/Return, Heading | rr_RiskReturnHeading | MFS® Total Return Portfolio |
| Supplement Text | ck0000719269_SupplementTextBlock | SUPPLEMENT TO PROSPECTUS The date of this supplement is October 29, 2012.
MFS® Total Return Portfolio Service Class
Effective immediately, the sub-section entitled “Fees and Expenses” beneath the main heading "Summary of Key Information" is restated in its entirety as follows:
Summary of Key Information |
| Expense, Heading | rr_ExpenseHeading | Fees and Expenses |
| Expense, Narrative | rr_ExpenseNarrativeTextBlock | This table describes the fees and expenses that you may pay when you hold shares of the fund. Expenses have been adjusted to reflect the management fee set forth in the fund's Investment Advisory Agreement. If the fees and expenses imposed by the investment vehicle through which an investment in the fund is made were included, your expenses would be higher. |
| Operating Expenses, Caption | rr_OperatingExpensesCaption | Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment): |
| Expense Example, Heading | rr_ExpenseExampleHeading | Example |
| Expense Example, Narrative | rr_ExpenseExampleNarrativeTextBlock | This example is intended to help you compare the cost of investing in the fund with the cost of investing in other mutual funds. If the fees and expenses imposed by the investment vehicle through which an investment in the fund is made were included, your expenses would be higher.
The example assumes that: you invest $10,000 in the fund for the time periods indicated and you redeem your shares at the end of the time periods; your investment has a 5% return each year; and the fund’s operating expenses remain the same. |
| Expense Example, By Year, Caption | rr_ExpenseExampleByYearCaption | Although your actual costs will likely be higher or lower, under these assumptions your costs would be: |
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MFS Total Return Portfolio | Service Class
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| Risk/Return: | rr_RiskReturnAbstract | |
| Management Fee | rr_ManagementFeesOverAssets | 0.67% |
| Distribution and/or Service (12b-1) Fees | rr_DistributionAndService12b1FeesOverAssets | 0.25% |
| Other Expenses | rr_OtherExpensesOverAssets | 0.07% |
| Total Annual Fund Operating Expenses | rr_ExpensesOverAssets | 0.99% |
| Expense Example, By Year, Column | rr_ExpenseExampleByYearColumnName | Service Class Shares |
| Expense Example, With Redemption, 1 Year | rr_ExpenseExampleYear01 | 101 |
| Expense Example, With Redemption, 3 Years | rr_ExpenseExampleYear03 | 315 |
| Expense Example, With Redemption, 5 Years | rr_ExpenseExampleYear05 | 547 |
| Expense Example, With Redemption, 10 Years | rr_ExpenseExampleYear10 | 1,213 |