So you ran the numbers and switched to an HDHP. Good. Now the first year feels different, and a little scary.
I have an HSA and three kids. I know the switch can feel like walking a tightrope without the PPO safety net. Here is what to actually do so the first year goes smoothly.
Fund the HSA early, not late
The first mistake people make is waiting. They figure they will fund the HSA when a bill shows up. That is backwards.
Expenses before your HSA exists are not qualified. So open the account and get money in it fast. A bill from before the account was established does not count, even by a day.
In 2026 you can put $8,750 into a family HSA, or $4,400 for self-only. For 2027 those rise to $9,000 and $4,500. You do not have to hit the max on day one, but get the account open.
Understand your new worst case
The deductible is higher now. That is the trade you made for lower premiums. Do not panic about it.
For 2026, an HSA-qualifying HDHP has a family out-of-pocket max capped at $17,000, or $8,500 self-only. For 2027 those caps are $17,400 and $8,700. Your plan likely sets a lower number. Find it and write it down.
That figure is the most you pay in a bad year. Once you know it, the fear gets smaller. Uncertainty is scarier than a number.
Grab the employer money
If your employer contributes to your HSA, take all of it. It counts toward your annual limit.
It shows up on your W-2 in Box 12 with code W. It is generally not subject to employment taxes. So it is about as close to free money as your paycheck offers.
Decide how you will pay bills
Here is the choice that trips people up. When a medical bill arrives, do you pay from the HSA or from your checking account?
Both are fine. Paying from checking and leaving the HSA invested lets the money grow. You can pay yourself back years later, as long as you saved the receipt. We covered the timing in our post on when to reimburse yourself.
There is no deadline on reimbursement. A receipt from this year can become a tax-free withdrawal in 2040. The catch is you need to keep the receipt.
Keep every single receipt
This is the whole game. The HSA is only as good as your records.
Save the receipt for every qualified expense from day one. Doctor visits, prescriptions, dental, the stuff you did not know counted. Our list of HSA-eligible expenses is longer than most people expect.
If you already lost a few in the shuffle, do not spiral. Our post on lost HSA receipts covers the recovery.
Check in halfway through the year
A PPO you could set and forget. An HDHP rewards a mid-year glance.
Around July, look at how much you have contributed and how close you are to the limit. Look at whether you are on pace to hit your deductible. Our mid-year HSA check-in guide walks through it.
If you are second-guessing the switch entirely, run it again in our HDHP vs PPO calculator. It only takes a minute to confirm you made the right call.
The honest bottom line
The first HDHP year feels risky because the deductible number is big. But the premium savings, the employer money, and the tax-free HSA all work in your favor.
That is why I built Tripl. A pile of receipts is a pile of tax-free money, and I did not trust a shoebox to hold mine.
*This is educational content, not financial or tax advice. Consult a qualified professional before making decisions about your HSA.*