Total Compensation (TC) Explained: How to Calculate It Properly

If you spend any time on tech career forums like Blind, Reddit’s r/cscareerquestions, or Levels.fyi, you’ll see one acronym thrown around constantly: TC, short for Total Compensation. It’s the universal currency of job-offer comparisons, but it means slightly different things to different people, and the way you compute it can swing the “winning” offer by tens of thousands of dollars. This guide explains how to calculate TC properly, what to include, what to exclude, and why most online calculators get it wrong.

The standard TC formula

The most common definition of TC, used by Levels.fyi and most negotiation guides, is:

TC = Base Salary + Annual Bonus + Annual Equity Vest

Notice what’s included: only the parts of compensation that are predictably annual and clearly cash-equivalent. Sign-on bonuses are excluded because they’re a one-time event. 401(k) match is excluded because it’s locked in a retirement account. Health insurance is excluded because it’s an in-kind benefit, not cash. PTO is excluded because it’s already implicit in your salary.

By this strict definition, TC for a senior software engineer with $200K base, $30K target bonus, and $300K RSU grant over 4 years (= $75K annual vest) would be $305K.

Why the standard formula understates real value

The strict TC formula is great for quick apples-to-apples comparisons but it leaves substantial real-dollar value on the table. A more complete picture — what we’ll call Total Annual Effective Compensation — includes the items the strict formula excludes:

TAEC = Base + Bonus + RSU vest + 401(k) match + Employer health premium + PTO cash equivalent + Other benefits

Here’s the difference for the same example offer with reasonable assumptions ($9K match, $14K health, 20 PTO days = $15K cash equivalent, $2K misc benefits):

Component	Strict TC	TAEC
Base salary	$200,000	$200,000
Annual bonus	$30,000	$30,000
RSU vest	$75,000	$75,000
401(k) match	—	$9,000
Health insurance	—	$14,000
PTO cash equivalent	—	$15,000
Other benefits	—	$2,000
Total	$305,000	$345,000

The TAEC is 13% higher than the strict TC — and that 13% can be the difference between two competing offers when one has a more generous benefits structure than the other.

Year 1 vs. averaged TC

Another common mistake is confusing year-1 TC with average annual TC across the vesting period. Year-1 TC includes the sign-on bonus and the post-cliff RSU vest, which makes it look enormous. Year-2 TC drops once the sign-on disappears, and Year-4 TC depends entirely on whether the company refreshes equity (most do, often at 25–50% of original grant per year).

The right way to compare two offers is the 4-year average TC because it normalizes the sign-on impact and reflects what you’ll actually earn over the vesting period. A high-base offer with a small sign-on often beats a low-base offer with a giant sign-on once you average across years.

What the strict TC formula leaves out (and how to value it)

For a complete comparison, mentally add the following items to any strict TC figure when comparing offers.

401(k) match: Worth dollar-for-dollar what the company puts in. A 100% match up to 5% of salary on a $150K salary is $7,500 of pure annual value. Don’t discount for the “locked away until 65” feature — the dollars compound tax-deferred at 7%+ for decades, which more than compensates.

Employer-paid health insurance: Self-insure cost for a healthy 35-year-old in the US runs roughly $7,000–$15,000/year for an individual plan, or $20,000+ for a family plan. The employer’s contribution to your premium is real cash you’d otherwise have to pay yourself. Add it to TAEC at face value.

PTO: A day of PTO is worth (annual salary / 260 working days). On a $200K salary, that’s $769/day. 25 PTO days = $19,200 of value. Companies with unlimited PTO often see employees take fewer days off (perhaps 12–15 per year) due to peer pressure, so weight unlimited-PTO offers more conservatively at maybe $10,000.

Wellness, learning, and equipment stipends: Most large tech companies offer $1,000–$5,000/year in stipends for gym memberships, professional development, home office equipment, or coworking space. Add these in at face value.

ESPP (Employee Stock Purchase Plan): A common 15% discount on company stock with a 6-month look-back is worth roughly 3–7% of contributed amount per offering period, or 6-15% per year if you contribute the maximum. For a $150K-salary employee maxing the IRS limit ($25,000 contribution), that’s an extra $1,500–$3,750 per year of nearly-free money.

Why the right TC calculation matters in negotiation

When you’re negotiating a counter-offer, the recruiter is also calculating TC — and they’re using the strict formula because it minimizes the headline number. If your offer is $250K strict TC and the counter-offer benchmark you’re citing is $300K strict TC at a competing company, you may not realize that your full TAEC is closer to $290K because of the strong 401(k) match and PTO. The real gap is smaller than the strict TC suggests.

The free Offer Analyzer calculates both strict TC and TAEC simultaneously, so you can use the right number in any conversation. The Compare Two Offers tool does the same for two offers in parallel.

The bottom line

Use strict TC when posting publicly on Levels.fyi or Blind because that’s the convention. Use TAEC when making your own decision because it reflects real economic value. Use after-tax, cost-of-living-adjusted TAEC when comparing offers across cities because that’s the only number that captures actual lifestyle impact.

For all three calculations on a single offer, the Offer Analyzer is the fastest path. For comparing two offers in different cities, the Compare Two Offers tool layers in cost-of-living and tax automatically.