Compare the three ways to buy

The payment, the cash to close, and what is left to pay

Cash to Close
Assumption

Assumption only

$3,822,449/mo
+$3,817,709/mo
Down payment
$0
Funds due
$106,347
Interest + MI left
$234,189,287
First ends
Dec 2044
New loan

New conventional

$4,739/mo
Lowest payment
Down payment
$62,495
Funds due
$74,720
Interest + MI left
$853,001
First ends
Dec 2056

Monthly payment

The initial total housing payment for each option.

Assumption onlyNew conventional
First mortgage$544,685,929$562,455
Second mortgage——
First P&I$3,276,779.90$3,894.32
Second P&I——
Mortgage insurance$544,936.42$112.49
Taxes, insurance & HOA$732.50$732.50
Total housing payment$3,822,448.81$4,739.32

Cash to close

Down payment, closing costs and prepaids, then credits.

Down payment$0
Closing costs & prepaids$106,347
Usable credit−$0
Total buyer cash needed$106,347
Earnest money paid−$0
Remaining funds due$106,347
Assumption fee$1,800.00
Credit report$250.00
UMe assumption specialist (1%)$6,249.50
Title & settlement$1,825.00
Recording fee$100.00
Home insurance (12 months up front)$2,000.00
Insurance escrow (3 months)$500.00
Property tax escrow (3 months)$1,562.50
Initial HOA (3 months)$135.00
Prepaid interest, first (2 days)$91,925.08

Prepaids include a year of home insurance up front, three months of taxes and insurance in escrow, and 2 days of interest to the end of the closing month.

What is left to pay

The seller already paid down the early, interest-heavy years.

Remaining first mortgage at closing18 yr 1 moOf the original 30-year loan at 3.080%
Interest already paid$243,943,454Through Nov 2026
Assumption only · ends Dec 2044$234,189,287
New conventional · ends Dec 2056$853,001