I had 6 weeks of annual leave saved up. Im changing to a job that pays significantly more than my current salary. When my boss asked me what it would take to stay, I asked for a salary increase of 35% which he begrudingly gave me. Then I quit. This equated to an entitlement payout of about $10,700 instead of $8000 on my previous rate, an extra $2700. And the new job still pays more than the increased rate I asked for.
This isn’t unethical. Your boss willingly agrees to a changed contract with you, including all it entails. On the other hand, your boss also extracts the maximum labor value they can get out of you and pays you the minimum amount you’ll agree to.
Agree, this is not a ULPT.
This is just a LPT.
Only thing to note is that the company will be unlikely to ever hire you again. If that’s not an issue, go for it.