coming back after 4 years out (kids + a move) i assumed i had zero leverage. the internet kept telling me gaps hurt you and i had already mentally accepted whatever they offered.
but then i looked up Levels.fyi and Glassdoor and realized their first number was at the 25th percentile for the role in my metro. so i pushed back.
here's what i actually said, as close as i can remember: "i've been out of the workforce for a few years but i've kept current through X and Y, and the market data i'm seeing for this level in [city] is in the Z-W range. your offer is below that. i'd like to ask about getting to [specific number]."
that's it. i didn't apologize for the gap. i didn't explain the gap again. i just cited the market data and asked.
they came back with 14k more. i asked once more for the remaining 4k. got it.
if i'd accepted the first offer i would have been locked in at a 25th percentile salary with no easy path up for years. always check the data before you accept anything.