Two offers land in your inbox the same week. Offer A pays more. Offer B pays less but throws in better health insurance, more PTO, and a 401k match that actually means something. Your gut says take the bigger number, but something nags at you that the comparison isn't actually that simple. It isn't. Comparing two salaries only works if you're comparing the whole package, not just the headline number.
This trips up way more people than you'd expect, including folks who are otherwise great at math. The issue isn't the calculation, it's that most people never actually run it. They eyeball the bigger salary, maybe glance at the benefits for a second, and call it a day.
Why the Bigger Number Can Quietly Be the Worse Deal
Health insurance is the easiest example. If Offer A's insurance costs you $300 a month out of pocket and Offer B's costs you $50, that's a $250 monthly difference, which is $3,000 a year, before you even touch the actual salary numbers. A $5,000 higher salary at Offer A can turn into only a $2,000 real advantage once you account for that gap.
Then there's the 401k match, which is essentially free money that a lot of people undercount because it doesn't show up in their bank account directly. If one employer matches 4% of your salary and the other matches 0%, that's thousands of dollars a year you're either getting or leaving behind, depending on which offer you pick.
The Stuff That's Easy to Forget
PTO, remote flexibility, tuition reimbursement, even commute costs if one office is farther than the other. None of these show up on the offer letter as a dollar figure, but they all have a real cost or value attached if you actually sit down and price them out.
Building an Actual Apples-to-Apples Comparison
The way to do this properly is to convert everything into a dollar amount and stack the two offers side by side. Start with the base salary, then add or subtract for every meaningful difference: insurance premiums, retirement match, bonus structure, PTO if you'd value it as paid time at your daily rate, anything that has a real financial impact either way.
Once you've done that, you get a number that actually represents what each offer is worth to you, not just what it says on the letter. Sometimes the lower salary wins this comparison outright. Sometimes the higher one still wins, but by a smaller margin than it looked like at first glance. Either way, you're making the decision with real information instead of a gut feeling about which number looked bigger.
- A higher salary can still be the worse offer once benefits are priced in.
- Health insurance premiums and 401k matches are often worth thousands a year, and easy to undercount.
- PTO, remote flexibility, and commute costs all have a real dollar value, even if they're not labeled that way.
- The only fair comparison is one where you convert every benefit into a dollar number on both sides.
Where Take-Home Pay Fits Into This
Once you've adjusted for benefits, the next layer is making sure you're comparing actual take-home pay, not just gross salary. Two identical gross salaries can produce different paychecks depending on state taxes, how your specific benefits are structured, and how much is being pulled out pre-tax versus post-tax. This is the step a lot of people skip entirely, because it requires more than just subtracting one number from another.
The offer that looks better on paper and the offer that actually puts more money in your account every month are not always the same offer.
This is exactly the kind of layered math that benefits from an actual calculator instead of mental math or a quick spreadsheet guess. Once you can see the real take-home number for each offer side by side, the decision usually gets a lot clearer, sometimes in a direction you didn't expect going in.
Your Side-by-Side Checklist
Before you accept either offer, run through this list with both letters open in front of you:
- List the base salary for both, but treat it as the starting point, not the deciding factor.
- Price out the health insurance difference between the two, using your actual expected monthly premium for each.
- Add up the retirement match as real annual dollars, not just a percentage that sounds nice.
- Account for PTO and flexibility if either one would genuinely change how you work or live.
- Run both salaries through a real take-home calculator so you're comparing actual deposited paychecks, not just gross numbers on a letter.
Once you've done this once, you'll never compare two offers by salary number alone again, and you'll walk into the decision actually knowing which one puts more real value in your life.