How to manage 2018 payments and bills received in 2019 for a business closed in 12/2018

I closed my S-Corp in CA in 12/2018.  However, I received additional payments for work done in 2018.  I also had additional bills to pay for services provided in 2018, where payments were made in 2019.  Currently I work for a different company as a W2 employee in NJ.  How do I handle the payments and expenses received in 2019 for the closed S-Corp?