hi from just answer.
thanks for your patience.
IRS gives individual taxpayers time to make payment on their individual taxes, which is what most people think of when they ask about installment agreements. Your question is about business taxes, and you wanting time to pay them on the business' behalf. That's different.
I don't know if IRS is involved yet, or if they have asked you personally for the funds, or the type of business form (are you personally liable or not for all of it).
Once you get back to me with some more facts, I can give a specific answer, and maybe a recommendation or 2.