(This is after the recent 8% increment)

(For beginning GEO1 rates, prob can just refer to MOE website)
GEO1A1: 3380-5540
GEO1A2: 4450-6912
GEO1A3: 4806-7452
SEO1: 5184-8316
SEO1A1: 7236-9288
SEO1A2: 8748-11232

Of course, most teachers max out at GEO1A3. SEO1, 1A1, 1A2 are for SH/LH, HOD, VP ranks respectively.

As mentioned before, pay alone won't sustain you... really need to find the job meaningful to go on. That said, if you think you'll enjoy it, the numbers above should help you make a decision