Tools

Free calculators for business exits, §453A interest, home-sale exclusions, exchange deadlines, and installment-sale tax comparisons.

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§453A Interest Charge Calculator

For obligations above $5 million — applicable percentage, deferred tax liability, and the annual charge.

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What's left after debt, fees, and taxes — and how much of it actually arrives at closing.

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See what the $250K/$500K exclusion covers — and what's left taxable.

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Your exact 45-day and 180-day dates — including the tax return due date that shortens late-year exchanges.

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Compare a lump-sum sale against a structured installment schedule at current federal and state rates.