Compare the three ways to buy

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

Cash to Close
Assumption

Assumption only

$5,126/mo
Lowest payment
Down payment
$628,330
Funds due
$652,675
Interest + MI left
$320,325
First ends
Jun 2047
Assumption

Assumption + second

$8,801/mo
+$3,675/mo
Down payment
$115,330
Funds due
$144,084
Interest + MI left
$1,130,395
First ends
Jun 2047
New loan

New conventional

$8,885/mo
+$3,759/mo
Down payment
$115,330
Funds due
$141,083
Interest + MI left
$1,567,630
First ends
Jan 2057

Monthly payment

The initial total housing payment for each option.

Assumption onlyAssumption + secondNew conventional
First mortgage$520,670$520,670$1,033,670
Second mortgage—$513,000—
First P&I$3,146.46$3,146.46$7,156.92
Second P&I—$3,675.19—
Mortgage insurance$458.49$458.49$206.73
Taxes, insurance & HOA$1,521.17$1,521.17$1,521.17
Total housing payment$5,126.12$8,801.31$8,884.82

Cash to close

Down payment, closing costs and prepaids, then credits.

Down payment$115,330
Closing costs & prepaids$28,754
Usable credit−$0
Total buyer cash needed$144,084
Earnest money paid−$0
Remaining funds due$144,084
Assumption fee$1,800.00
Credit report$250.00
UMe assumption specialist (1%)$11,490.00
Title & settlement$1,825.00
Recording fee$100.00
Second-loan charges$1,250.00
Home insurance (12 months up front)$2,600.00
Insurance escrow (3 months)$650.00
Property tax escrow (3 months)$2,872.50
Initial HOA (3 months)$1,041.00
Prepaid interest, first (29 days)$1,716.78
Prepaid interest, second (29 days)$3,158.82

Prepaids include a year of home insurance up front, three months of taxes and insurance in escrow, and 29 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 closing20 yr 6 moOf the original 30-year loan at 4.150%
Interest already paid$232,084Through Dec 2026
Assumption only · ends Jun 2047$320,325
Assumption + second · ends Jun 2047, second Jan 2057$1,130,395
New conventional · ends Jan 2057$1,567,630