List of caveats I can think of: * Covers regular federal income tax only. Does not cover any of the taxes on Schedule 2, nor any state/local taxes. * Assumes

List of caveats I can think of: * Covers regular federal income tax only. Does not cover any of the taxes on Schedule 2, nor any state/local taxes. * Assumes both individuals take the federal standard deduction as Single (not Head of Household). * Assumes no other credits or deductions. As a result, this can potentially understate marriage penalties for dual-income couples with kids. https://taxpolicycenter.org/briefing-book/what-are-marriage-penalties-and-bonuses https://taxpolicycenter.org/briefing-book/what-are-marriage-...