This Act requires the tax collecting authority of each county, in the first tax year following a general reassessment, to allow the payment of school taxes under a payment plan of at least 3 equal installments for a residential taxpayer, in a primary residence, whose tax bill increases by $300 or more over the prior year. No late fees, interest, or penalties may be assessed to a taxpayer who enters and complies with a payment plan. The Act also reduces late payment penalties for school taxes in New Castle County to 1% per month, the current penalty for late payment in Kent and Sussex. This Act sunsets 3 years after its enactment into law.