Free real estate calculator

Bridge Loan Calculator

Estimate the cost and payoff of buying before your existing home sells.

By Calculate My Property EditorialUpdated September 30, 2026Professional review pending
01 / Your inputs

Start with your property.

Property3 inputs
USD
USD
USD
Financing3 inputs
%
Interest-only assumption.
%
Charged once on principal.
%
Charged on principal at payoff.
Timing1 inputs
months
Test a delayed sale as well as your best case.
All amounts in USD.
Your estimate

Sale cash after bridge payoff + costs

$88,500Based on your inputs · USD
Monthly interest
$1,250
Principal payoff
$150,000
All-in financing cost
$11,500
See the breakdown
Hold-period interest
$7,500
Origination points
$3,000
Other fees
$1,000
Exit fee
$0
The formula

Sale proceeds − bridge principal − financing costs

Assumptions & limitations (1)
  • Interest-only constant balance. No rehab draws or compounded interest; prepaid costs are included once in all-in cash accounting.
02 / Your next decisionSeller Net SheetMortgage Recast
External resource

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Planning estimate. Editorially sourced; independent professional review is pending. How we calculate
Worked example

Follow the default numbers.

With bridge loan of $150,000, the model gives sale cash after bridge payoff + costs: $88,500.

The formula is sale proceeds − bridge principal − financing costs. Open the breakdown to trace expenses and assumptions. Change one input at a time to see how your decision changes. This example uses scenario inputs; it is not an offer, tax bill, appraisal or legal determination.

A delayed sale increases carrying cost

Bridge financing assumes interest-only payments on a constant balance, plus points, other fees and an exit fee. Each additional month adds interest before the existing home sells. The residual-proceeds estimate subtracts principal and modeled bridge costs from your entered net sale cash. Use sale cash before these bridge charges to avoid double counting them.

Two properties can mean two cost budgets

The bridge estimate does not automatically include both homes’ taxes, insurance, maintenance or other mortgage payments. Add those costs to a broader transition budget. Sale timing, contract contingencies and a balloon deadline can create liquidity risk even when eventual equity appears sufficient. Confirm how the lender expects monthly interest to be paid.

Consider the post-sale use of proceeds

After the bridge is paid, remaining proceeds may support a new-loan recast or other needs. The recast page compares a lump sum with keeping the original payment or refinancing. A projected residual is not approval to borrow or a guarantee the old home will sell at the assumed price.

Keep your assumptions with the result

Save the calculation to your deal file to reuse compatible inputs in another tool. The file stays in this browser on this device. Download the CSV to open the complete inputs, results and schedule in Excel or Google Sheets. Use PDF to print the report or save it as a PDF. A share link includes entered financial figures in its URL, so use it only with people you intend to share those numbers with.