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Rental property underwriting

Know your walk-away price before you make the offer.

Paste a listing or enter an address. TrueCap shows cash flow, DSCR and the highest price that meets your buy box—plus which assumptions still need verification.

Read the written memo

No account or card. Your first complete Offer Ceiling is included.

usetruecap.comExample
Philadelphia rental example
Single Family · $265,000 · Built 1942
Asking misses the sample targets
Offer Ceiling
$236,000
$29,000 below the $265,000 list price

Example criteria · cash flow ≥ $750/mo · DSCR ≥ 1.25.

Highest modeled price meeting these example criteria. This is not a recommended offer.

What would make this sample work

Price ≤ $236,000 · Rent ≥ $3,302/mo · Rate ≤ 5.15%

Illustrative analysis using editable sample inputs. Estimates are not an appraisal or investment guarantee.

No black-box inputs. Every starting assumption is labeled with its source or as your input, stays editable, and carries a clear verification step.

Underwrite a Buy & Hold Rental

Confirm the property, price, income, and assumptions. TrueCap then shows whether the deal works and why.

Analysis type:Buy & Hold

1. Property

Optional. A free account is required to look up available property facts and estimates. You'll review any changes; values you entered will not be replaced silently.

2. Purchase price
3. Rental income

Add bedrooms to auto-estimate rent (HUD area data).

Review assumptions

These values drive the preview. Every source is labeled, and every number is editable.

Offer Ceiling criteria

Will use TrueCap starter criteria

break-even cash flow · DSCR ≥ 1.25

Change criteria
Adjust criteria before calculating

Leave a field blank to ignore it. The main Analyze button uses the exact values below for this analysis.

More analysis options

Built on real data

Visible sources. Editable assumptions.

TrueCap labels each auto-filled value with its source and keeps every assumption editable. Start fast, then replace benchmarks with verified property facts, local comps, and lender terms.

HUD Fair Market Rent

Rent

Pulled for the property's county or ZIP and bedroom count where available—a starting benchmark to compare with local rent comps.

FRED 30-year fixed

Mortgage rate

The latest available national series value, with its date shown. Replace it with an actual lender quote before deciding.

State effective rate

Property tax

Your state's typical effective rate, applied to the purchase price you enter.

Fast starting point. Transparent assumptions. Final control stays with you.

What you get

Analyze free. Use Investor Pro to solve the Offer Ceiling that fits your targets—deal after deal.

Start with a 60-second screen, then use Pro to review four things: selected-rule fit, Offer Ceiling, what could break, and how to document the decision.

Features included with Free and Pro
FeatureFreeFirst decisionInvestor ProPaid plan
Complete decision workflow1 decisionIncluded
Cap rate · CoC · DSCR · cash flowIncludedIncluded
0-100 Screening Index + modeled contextIncludedIncluded
Decision memo/reportOne exact dealUnlimited
Offer Ceiling + Deal Doctor thresholdsOne exact dealIncluded
Save & revisit dealsUp to 5Unlimited
Compare deals side-by-sideNot includedUp to 4
Buy Box: selected-rule fit on every dealNot includedIncluded
10-year cash-flow projectionNot includedIncluded
Downside sensitivity checksOne exact dealIncluded
Investor Pro

One address. Four acquisition answers.

Get your Buy Box rule-fit result, Offer Ceiling, downside stress test, and a decision-review report—then compare, save, and move selected deals through your acquisition workflow.

See Pro pricing

Create an account for a 21-day evaluation covering up to 3 deals and 1 comparison. No card and no automatic subscription.

Common questions

The questions every investor asks first.

Why not just use a free calculator?

Most free calculators stop at metrics. TrueCap's first complete decision also shows selected-rule fit, a target-backed Offer Ceiling, downside checks, and next steps. The Offer Ceiling is the highest modeled price that still meets the selected targets under the assumptions shown; it is not advice or an appraisal.

What does the auto-fill provide?

Rent starts from a HUD area benchmark (ZIP-level when available, otherwise an FMR area), not a property-specific rent comp. The rate starts from FRED's national owner-occupied 30-year benchmark, not an investor lender quote. Property tax is not auto-filled from the retired static state table: enter a local annual bill or reviewed rate. Until then, the model labels its generic 1.1% tax assumption as a preliminary fallback. Replace every screening assumption with property-specific evidence before recording or acting on an investment decision.

Why does Pro cost more than other rental calculators?

Pro adds a repeatable decision-review layer: a target-backed Offer Ceiling, Buy Box rule-fit checks, downside stress tests, comparisons, and reports. The outputs remain estimates based on the assumptions shown and require independent verification.

Is TrueCap really free?

Yes. Your first complete decision needs no account or card. Create an account to start a 21-day, no-card evaluation covering up to 3 deals and 1 comparison. Investor Pro is for repeating the verified workflow, saving and revisiting deals, comparisons, reports, and reusable Buy Box assumptions.

Do I need a credit card?

No. The first complete decision needs no signup or card. Creating an account starts a 21-day product evaluation with no payment method and no automatic subscription.

Can I edit the assumptions?

Yes - every number is editable. TrueCap pre-fills rent, rate, tax, and expense defaults so you get an instant first pass, then you can change financing, expenses, and growth assumptions under “Improve accuracy” and rerun in a click.

When should I upgrade to Pro?

Upgrade when you want to repeat the decision workflow after the product evaluation: revisit saved deals, compare opportunities, reuse Buy Box assumptions, and produce reports. Monthly Pro can be cancelled anytime.

How does the product evaluation work?

Create an account to evaluate the product for 21 days, up to 3 completed deals and 1 comparison. No card is collected, nothing auto-renews, and checkout clearly shows the amount due before a paid subscription begins.

Why are some advanced strategy modules unavailable?

TrueCap keeps specialist strategy, tax, and modeled-sale outputs behind release gates until their formulas, disclosures, regression tests, and presentation meet the same standard as the core buy-and-hold workflow. Standalone tools remain educational first-pass calculators, not acquisition decisions.

Is this financial advice?

No. TrueCap applies documented, deterministic formulas to your inputs and labeled screening benchmarks. Every assumption is editable, every output is an estimate, and the decision is yours. It is a calculator, not a financial advisor.

Still have a question? Email us.

Put in an address. Understand the deal. Review the Offer Ceiling.

Your first complete decision includes cash flow, cap rate, CoC, DSCR, rule-fit context, the Offer Ceiling, downside checks, and next steps—no account or card required.