Compare the three ways to buy

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

Cash to Close
Assumption

Assumption only

$3,817/mo
+$173/mo
Down payment
$23,801
Funds due
$36,131
Interest + MI left
$629,557
First ends
May 2054
New loan

New conventional

$3,644/mo
Lowest payment
Down payment
$51,500
Funds due
$61,524
Interest + MI left
$702,929
First ends
Dec 2056

Monthly payment

The initial total housing payment for each option.

Assumption onlyNew conventional
First mortgage$491,199$463,500
Second mortgage——
First P&I$3,242.89$3,209.18
Second P&I——
Mortgage insurance$231.77$92.70
Taxes, insurance & HOA$341.92$341.92
Total housing payment$3,816.57$3,643.80

Cash to close

Down payment, closing costs and prepaids, then credits.

Down payment$23,801
Closing costs & prepaids$12,329
Usable credit−$0
Total buyer cash needed$36,131
Earnest money paid−$0
Remaining funds due$36,131
Assumption fee$1,800.00
Credit report$250.00
UMe assumption specialist (1%)$5,150.00
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)$525.75
Prepaid interest, first (2 days)$178.72

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 closing27 yr 6 moOf the original 30-year loan at 6.640%
Interest already paid$82,813Through Nov 2026
Assumption only · ends May 2054$629,557
New conventional · ends Dec 2056$702,929