Contributions to a Health Savings Account (HSA)
Because a new savings program tends to favor younger people with more time to save, a "catch up" provision was included with HSA regulations. HSA holders age 55 and older may make additional annual contributions to a maximum additional calendar year contribution of $1000 in 2018.
An employer may contribute to an employee's Health Savings Account (HSA), but the employer must make available comparable contributions on behalf of all "comparable participating employees." Contributions are considered comparable if they are the same amount or same percentage of the High-Deductible Health Plan (HDHP) deductible.
HSA contributions must be made for a specific year on or before the due date (without extensions) for filing tax returns for that year. So, for 2018, contributions must be made on or before April 15, 2019.
Higher HDHP Deductibles
You can purchase a High-Deductible Health Plan (HDHP) with a deductible beyond the HSA contribution limit. For example, a single person can purchase a $5000 deductible HDHP. However, that person's maximum 2018 HSA contribution would still be limited to the $3,450 cap for single coverage.
HSA Contributions must be Cash
Health Savings Account (HSA) contributions must be in cash. For example, contributions can not be made in stock or other property.
Rollovers are Permitted
Rollover contributions from Archer MSAs and other HSAs are permitted. Rollovers are not subject to the annual contribution limits and rollover contributions need not be in cash.
One-time transfer from IRAs to HSAs.
Excess HSA Contributions
Contributions by an individual are not deductible to the extent they exceed the maximum limits. Excess contributions by an employer generate taxable income to the employee. In addition, a 20% excise tax is imposed on the excess funds.
The excise tax and any net income attributable to excess contributions are avoided if the excess contributions are paid to the HSA owner prior to federal income tax deadline for the year at issue.
Investment earnings accrue tax-free.
Distributions made for any other purpose are subject to income tax and a 20% penalty. The 20% penalty is waived in the case of death or disability. The 20% penalty is also waived for distributions made by individuals age 65 and older.
Upon death, HSA ownership may transfer to the spouse on a tax-free basis.
If your HSA-qualified coverage began in any month other than January and no later than December 1st, 2018, you can still make the full HSA contribution for the calendar year 2018. For example, if your coverage under an HSA-qualified policy did not begin until July 2018, you can contribute the full $3,450 self-only coverage or $6,900 for family coverage for 2018. However, you must keep your HSA-qualified coverage through at least the end of the following calendar year which would be December 31st, 2019 or you may have to pay back some of the contribution (and maybe interest and penalties). If you know that you're not going to keep your HDHP for one reason or another until December 31st, 2019 you may be better off prorating your contributions for 2018.