Rent vs Sell Calculator

Methodology

Simple on top. Rigorous all the way down. This page is for sharp readers who want the formulas, tax treatment, and limits — not a marketing summary. Formal calc notes also live in engine/calc-spec.md.

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What this tool decides

You compare two paths over a holding period you choose:

  1. Sell now — pay off the loan, pay selling costs and estimated tax, then invest the net proceeds at your opportunity rate.
  2. Rent, then sell — collect after-tax rental cash flow, reinvest that cash at the same opportunity rate, then sell at the end of the hold (with depreciation and sale tax).

The verdict uses total value at the end of the holding period: invested sale portfolio vs. (equity + reinvested cash) until sale, then sale proceeds plus reinvested cash.

How this works (short)

Loan and property

Monthly payment is standard fixed-rate amortization. Principal and interest are tracked month by month. Equity at any year-end is projected home value minus remaining loan balance. Home value grows at your annual appreciation assumption from today’s value.

Rental cash flow (pre-tax)

For each month we estimate:

Rent − vacancy − maintenance% − management% − P&I − property tax/12 − insurance/12 − HOA/12 − landlord utilities/12 − turnover reserve/12

Rent, property tax, and insurance step with your rent-increase and appreciation assumptions where noted in the tool. HOA, landlord utilities, and turnover are held flat in dollars unless you change them.

Tax treatment (educational)

This is a planning sketch — not a tax return, and not advice.

While renting

Taxable rental income for the year is approximated as:

Pre-tax cash flow + principal paid − depreciation

Income tax ≈ taxable income × your marginal ordinary rate (can be negative in the model if the year produces a deductible loss). After-tax cash flow = pre-tax cash flow − that tax. Depreciation is straight-line over 27.5 years on building value = cost basis × (1 − land %). We assume depreciation starts at the analysis date (as if converting to rental then).

At sale

Real §121 eligibility, state tax, NIIT, and basis adjustments are more complex. Use a professional for decisions that hinge on tax.

Apples-to-apples wealth

Sell-path proceeds grow at your investment return each year. Rent-path after-tax cash is reinvested at that same rate: prior balance compounds for one year, then the year’s cash flow is added (end-of-year). Liquid charts show cumulative cash wealth on both paths; the rent path’s final year also adds net sale proceeds.

Property tax defaults

When auto-fill is on, annual property tax ≈ purchase price (or home value) × a state average effective rate. Those rates are approximate averages for planning — prefer your actual tax bill.

What this model does not cover

Privacy

Your inputs stay in this browser for the calculation. OwnerDelta does not require an account to get a result. We do not sell leads from your numbers. Copying a share link encodes your scenario in the URL (opt-in); otherwise nothing is uploaded by this tool.

Disclaimer

OwnerDelta’s Rent vs Sell Calculator is an educational planning tool. It is not financial, tax, legal, or investment advice. Markets, taxes, and your facts change. Talk to qualified professionals before you sell, rent, or invest.

Assumption changelog

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