Working rebbe here.
First, In Yeshivas that are financially stable and paying on time in the NY area, expect starting at 28k for a half a day, after five years a good Rebbe can expect in the 40s, and if your not good…
Second, when people speak of modern schools like Ramaz or HAFTR that start at 40k, you must realize that it is a full day job, 8:30-4:30, so the pay isn’t considerably good…
Third, I have spoken to a number of Rebbeim in Brooklyn at different gatherings and when discussing salaries they mentioned how their starting salaries were in the 40s (bit showing off, but whatever), I asked “so when is the last time you were paid?” All answered that pay was late and some checks never came through. Be cautious when a Yeshiva makes a high offer to lure you in…
There is good reason why many rebbeim try to get jobs out of Lakewood and the Brooklyn Rebbeim try to get jobs out of Brooklyn…
If you are certified and can handle teaching a whole day in a yeshiva, and they are willing to allow you to teach both, expect to start at around 50k and move up from there.