Real estate calculator guides
Short, practical explainers behind every Sumline tool — written for agents, investors, and home sellers who want the numbers to make sense.
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Closing Costs by State Guide (2026)
Every state's seller and buyer closing costs — transfer taxes, title customs, escrow vs attorney states, and free state-specific calculators.
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Rental Property ROI: Cap Rate, Cash-on-Cash & Total ROI
How to calculate cap rate, cash-on-cash return, and total ROI on a rental — with a worked example.
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DSCR Loan Calculator Guide: How to Calculate DSCR
What DSCR is, how lenders calculate it, and the ratios you need to qualify for a DSCR loan.
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How to Calculate Home Sale Proceeds
A step-by-step walkthrough of a seller net sheet — mortgage payoff, commissions, and closing costs.
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Capital Gains Tax on Home Sale Guide
When you owe capital gains tax on a home sale, the $250k / $500k exclusion, and how to estimate the bill.
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Airbnb vs. Long-Term Rental: Which Wins in 2026?
Side-by-side comparison of short-term and long-term rental income, expenses, and risk.
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Florida Seller Closing Costs Guide (2026)
Every closing cost a Florida home seller pays — doc stamps, title insurance, commissions, and more.
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California Seller Closing Costs Guide (2026)
Every closing cost a California home seller pays — county and city transfer tax, title & escrow customs, NHD, and more.
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New York Seller Closing Costs Guide (2026)
Every closing cost a New York home seller pays — state and NYC transfer taxes, mansion tax bands, co-op flip tax, and attorney fees.