Can HSA Contributions Made in March 2018 for 2017 be deductible on 2017 or 2018 income?

When it comes to HSA contributions made in March 2018 for the previous tax year, the key factor to consider is the tax filing deadline. Contributions made in March 2018 for the 2017 tax year can be deducted on your 2017 income if you meet certain criteria.

Contributions to an HSA for a particular tax year can be made until the tax filing deadline for that year, usually April 15 of the following year. However, to deduct these contributions on your income tax return for the previous year, you need to adhere to the following rules:

  • Must have had an HSA-eligible high-deductible health plan (HDHP) in place for the months you want to claim the deduction
  • The total HSA contributions, including those made by your employer, should not exceed the annual contribution limit for the year
  • You were not enrolled in Medicare

By meeting these criteria, you can deduct HSA contributions made in March 2018 for the 2017 tax year on your 2017 income tax return. It's important to keep accurate records of your HSA contributions and eligibility throughout the tax year to ensure you claim the deductions correctly.


Understanding the intricacies of HSA contributions can significantly impact your tax planning. Contributions made in March 2018 for the 2017 tax year are indeed eligible for deductions on your 2017 income tax returns, given that you meet specific qualifications.

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