Internal Revenue Service United States Department of the Treasury
Level Basic Advanced Military International

Health Savings Accounts (HSA)

HSA Limits on Contributions

Contribution Rule Limits (continued)

If the taxpayer was not an eligible individual for the entire year or changed his or her coverage during the year, the contribution limit is:

  • Last-month rule allows eligible individuals to make a full contribution for the year even if they were not an eligible individual for the entire year. They can make the full contribution for the year if:
    • They are eligible individuals on the first day of last month of their taxable year. For most people this would be December 1, and
    • They remain eligible individuals during the testing period. The testing period runs from December 1 of the current year through December 31 of the following year (for calendar taxpayers).
    • If the taxpayer does not qualify to contribute the full amount for the year, the contribution is determined by using the sum of the monthly contribution limits rule.

OR

December 1 circled on calendar.
Form 8889 Instructions Limitation Chart and Worksheet

Form 8889 Instructions Limitation Chart and Worksheet