Compare the three ways to buy

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

Cash to Close
Assumption

Assumption only

$1,398/mo
Lowest payment
Down payment
$526,375
Funds due
$540,968
Interest + MI left
$49,166
First ends
Apr 2045
Assumption

Assumption + second

$4,715/mo
+$3,317/mo
Down payment
$63,375
Funds due
$82,266
Interest + MI left
$780,281
First ends
Apr 2045
New loan

New conventional

$4,688/mo
+$3,289/mo
Down payment
$63,375
Funds due
$78,757
Interest + MI left
$851,478
First ends
Jan 2057

Monthly payment

The initial total housing payment for each option.

Assumption onlyAssumption + secondNew conventional
First mortgage$98,525$98,525$561,525
Second mortgage—$463,000—
First P&I$615.93$615.93$3,887.89
Second P&I—$3,316.99—
Mortgage insurance$95.14$95.14$112.31
Taxes, insurance & HOA$687.42$687.42$687.42
Total housing payment$1,398.48$4,715.47$4,687.61

Cash to close

Down payment, closing costs and prepaids, then credits.

Down payment$63,375
Closing costs & prepaids$18,891
Usable credit−$0
Total buyer cash needed$82,266
Earnest money paid−$0
Remaining funds due$82,266
Assumption fee$1,800.00
Credit report$250.00
UMe assumption specialist (1%)$6,249.00
Title & settlement$1,825.00
Recording fee$100.00
Second-loan charges$1,250.00
Home insurance (12 months up front)$2,000.00
Insurance escrow (3 months)$500.00
Property tax escrow (3 months)$1,562.25
Prepaid interest, first (31 days)$307.10
Prepaid interest, second (31 days)$3,047.55

Prepaids include a year of home insurance up front, three months of taxes and insurance in escrow, and 31 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 4 moOf the original 30-year loan at 3.670%
Interest already paid$50,445Through Dec 2026
Assumption only · ends Apr 2045$49,166
Assumption + second · ends Apr 2045, second Jan 2057$780,281
New conventional · ends Jan 2057$851,478