How much may be contributed to an HSA in calendar year 2018?
General rule: For an eligible individual that is covered by the same HDHP plan for the entire calendar year, the maximum annual contribution is the statutory limit of $3,450 in 2018 for those with self-only coverage, or $6,900 for those with family coverage. An HSA owner is treated as being covered by the same HDHP coverage (self-only or family) for the entire year as the coverage held on December 1.
NOTE: Contribution amounts may be adjusted for cost-of-living increases.
Contributions may be made by or on behalf of an eligible individual even if the eligible individual has no compensation, or the contributions exceed his or her compensation.
Catch-up contributions: Eligible individuals may make HSA catch-up contributions of up to $1,000 annually. For eligible individuals who are married and have family coverage, each spouse who is an eligible individual may make a catch-up contribution to his or her own HSA.
If an eligible individual will attain age 55 or older by the end of the calendar year, and he or she is an eligible individual for the entire year, he or she may make a full catch-up contribution.