1031 Debt Replacement Calculator

Full deferral has two conditions. You must buy replacement property worth at least your net sale price, and you must reinvest all of your equity while replacing all of the debt you paid off. The part people miss is that debt and cash are interchangeable: if your lender will not write a large enough loan, your own money closes the gap just as well.

Your numbers

The property you are selling
A replacement you are considering (optional)

Leave blank to see your targets on their own.

The answer updates as you type. This puts your figures in the address bar so you can save or send them.

Your result

What full deferral requires

These three hold whatever you end up buying. They are fixed by your sale.

Buy replacement property worth at least

Your sale price less selling costs.

$940,000

Reinvest equity of

Everything the intermediary holds. None of it can come back to you.

$540,000

Replace debt of

With a new loan, or with your own cash — the two are interchangeable.

$400,000

Against the property you entered

On these figures the exchange defers in full: you are buying $940,000 against a $940,000 net sale price, and every dollar of equity goes into the purchase. You will need to bring $200,000 of your own money to the closing, which is not boot — it is you buying more property.

Replacement as a share of net sale price

100%

Value shortfall

Buying below your net sale price is taxable to the extent of the gap.

$0

Debt shortfall

Cover it with a larger loan or with your own cash. Either works.

$200,000

Outside cash needed to close

$200,000

Exchange equity left unused

Returned to you after the purchase, and taxable as cash boot.

$0

Your options

  • Borrow $200,000 more against the replacement property.
  • Or bring $200,000 of your own cash into the purchase instead. Debt and outside cash replace debt equally well.

Want the detail?

Your three requirements, the shortfalls against the property you entered, and the ways to close each one — the brief to hand an agent or a lender.

Replacing debt is the requirement most likely to need a lender who has done exchanges before, on a 45-day clock. We can introduce one.

Your result above is complete and stays on the page whether or not you fill this in.

How much debt do I need to replace in a 1031 exchange?

What you must buy, reinvest and borrow — or pay in cash instead — to defer in full.