What is the difference between Form 1099-SA and Form 5498-SA?

One thing I'd definitely check is whether you're looking at the tax year correctly.

I made the mistake of comparing my December payroll contributions with the 5498-SA without considering that an HSA contribution made in January or April could potentially be designated as a contribution for the previous tax year.

The IRS instructions specifically explain that contributions made between January 1 and the tax-return due date (without extensions) can generally be treated as contributions for the previous tax year, subject to the applicable rules. (irs.gov)

As for 1099-SA, it reports distributions from the HSA. You generally use that information when determining the HSA distribution amounts that need to be accounted for on Form 8889.

If you used HSA funds for qualified medical expenses, the distribution can generally be excluded from income if the applicable requirements are met. If you used funds for nonqualified expenses, different tax treatment can apply.

I wouldn't just copy both forms into the return independently. They're reporting different sides of the HSA activity.

I had the same question about whether 5498-SA actually gets entered into the tax return.

From my experience, the 1099-SA is the one you really need when figuring out HSA distributions, while Form 5498-SA is primarily an informational form showing HSA contributions.

The IRS says Form 5498-SA reports contributions made to an HSA, Archer MSA or Medicare Advantage MSA, including certain contributions made for the previous tax year. (irs.gov)

For an HSA, the contribution information is relevant when completing Form 8889, Health Savings Accounts (HSAs).

Also, don't assume the amount on your 5498-SA must equal exactly what your employer deducted from your paycheck during the calendar year. Contributions made for the prior tax year can be made by the following year's tax-return due date and reported as prior-year contributions under the applicable rules.

That's what caused my mismatch.

The easiest way I remember it is:

1099-SA = distributions

5498-SA = contributions

I had both forms from my HSA provider last year.

My Form 1099-SA showed money that came out of the HSA during the year. The 5498-SA showed contributions that went into the HSA.

The important thing is that receiving a 1099-SA doesn't automatically mean the entire distribution is taxable. What matters is how the HSA distribution was used and the applicable HSA rules.

Form 5498-SA is also a little confusing because it can include contributions made for the prior tax year during the following year. That's one reason the form can arrive later than the 1099-SA.

The IRS instructions say trustees generally furnish Form 5498-SA by May 31, whereas Form 1099-SA is generally furnished by January 31. (irs.gov)

So I wouldn't worry if the 5498-SA arrives after you receive your 1099-SA.

One distinction that helped me was understanding the purpose of the forms rather than just looking at the numbers.

Form 1099-SA is an information return reporting distributions from an HSA, Archer MSA or Medicare Advantage MSA.

Form 5498-SA reports contributions made to an HSA, Archer MSA or Medicare Advantage MSA.

So they're basically reporting opposite sides of the account activity.

The 5498-SA isn't necessarily something you need to wait for before filing. If you're ready to file and have already determined your HSA contribution amount from your records, you may not need to wait for the 5498-SA to arrive.

But I'd still keep it with your tax records and compare it against your own HSA statements.

If there's a discrepancy, contact the HSA provider rather than changing the numbers yourself.

The IRS instructions for Form 8889 are also useful because that's where HSA contributions and distributions are reconciled for individual tax purposes.

I had the same question because my 5498-SA arrived in May.

That's actually normal. The IRS allows trustees to furnish Form 5498-SA later because HSA contributions can still be made for the previous tax year up to the tax filing deadline.

The 1099-SA is different because it reports distributions from the HSA during the calendar year.

For example, if you withdrew $3,000 from your HSA during the year, the 1099-SA could report that distribution. The 5498-SA might show contributions made to the account.

Another important point is that the forms aren't necessarily supposed to have matching amounts. One is about distributions, while the other is about contributions.

If you're filing your U.S. return, Form 8889 is the form that ties together HSA contributions and distributions.

I would also check whether you had any direct contributions to the HSA outside payroll because those can affect the contribution calculation.