couples and families. For 2020, the contribution limit is $3,550 for single or $7,100 for married couples and families. For 2021, the contribution limit will be $3,600 for single or $7,200 for married couples and families. All deposits to a health savings account become the property of the policyholder, regardless of the source of the deposit. Funds deposited but not withdrawn each year will carry over into the next year. Policyholders who end their HSA-eligible insurance coverage lose eligibility to deposit further funds, but funds already in the health savings account remain available for use. The Tax Relief and Health Care Act of 2006, signed into law on December 20, 2006, added a provision allowing a taxpayer, once in their life, to rollover IRA assets into a health savings account, to fund up to one year's maximum contribution to a health savings account. State income tax treatment of health savings accounts varies. California and New Jersey impose state income taxes on contributions, interest earned, and capital gains from health savings accounts. New Hampshire and Tennessee don't have state income taxes but they do impose a tax on dividends and interest, including health savings accounts. Contribution limits A taxpayer can generally make contributions to a health savings account for a given tax year until the deadline for filing the individual's income tax returns for that year, which is typically April 15. All contributions to a health savings account from both the employer and the employee count toward the annual maximum. Investments Funds in a health savings account can be invested in a manner similar to investments in an Individual Retirement Account (IRA). Investment earnings are sheltered from taxation until the money is withdrawn and can be sheltered even then, as discussed in the section below. Investments in a health savings account can be directed by the individual. While a typical health savings account custodian may offer investments such as certificates of deposit, stocks, bonds, or mutual funds, certain financial institutions provide accounts offering alternative investments which can be made inside the health savings account. Internal Revenue Code Section 408 prohibits a health savings account to invest in collectibles and life insurance policies, but health savings accounts can have investments in real estate, precious metals, public and private stock, notes, and more. While health savings accounts can be rolled over from fund to fund, a health savings account cannot be rolled into