Previous company was not paying for my taxes

Company I was previously with was not paying my taxes. They weren’t deducting taxes from my pay because they said it is one of our benefits that they will shoulder our/EE part of the gov’t contributions & taxes.

I have already flagged this with them when I was with them but only told me that they are still working on registering the company and will reimburse the contributions.

However, I resigned. They told me they’ll fix and give my final pay after a month. But after a month, they just gave me my final pay and gov’t contributions and taxes were still not added to my accounts.

I was able to give my current employer BIR 2316 from my other previous company but this recent one I resigned from, I told them that they haven’t given one yet. But so far, they haven’t reached back to ask for it again. In my payroll, I don’t see deductions yet but I’ve read somewhere that it’s because I already joined the company in the 2H of the year.

So my question is, what should I do about my taxes? Should I pay for it myself? But if I do, how much should I pay? I was hoping I would not have to pay for the other months “I” (my company) was not able to pay for my taxes.

Hoping to get clarifications. Thanks so much.