Systems and methods for analyzing and determining estimated taxes

摘要

Systems, methods and articles of manufacture for analyzing past year tax data for a taxpayer and determining an estimated current year tax liability in order to compute estimated tax payments. The tax preparation system comprises a tax estimate engine configured to access a plurality of calculated past year tax calculation graphs. The tax estimate engine analyzes and compares the calculated past year tax calculation graphs to determine similar node(s) and/or dissimilar node(s) and also determines a similar node estimating value for the similar nodes and/or a dissimilar node estimating value for the dissimilar nodes. A tax calculation engine calculates a current year tax calculation graph using the similar node estimating values and/or dissimilar node estimating values. The calculated current year tax calculation graph includes an estimated tax liability for the current year, which the system uses to compute estimated tax payments for the taxpayer for the current tax year.