$150,000 mortgage at 6%: monthly payment over 30 and 15 years
At 6%, a $150,000 mortgage amortizes at $899.33 a month over 30 years and $1,265.79 over 15. This page lays out the consequences of that rate on that balance, all computed: interest paid, equity built, when PMI ends, and the cost of paying late.
| 30-year fixed | 15-year fixed | |
|---|---|---|
| Monthly principal & interest | $899.33 | $1,265.79 |
| Total interest over the term | $173,757 | $77,841 |
| Total paid (principal + interest) | $323,757 | $227,841 |
| Interest as a share of total paid | 54% | 34% |
Principal and interest only. Property taxes, homeowners insurance, mortgage insurance and HOA dues are added to the actual payment. Rates shown are for the arithmetic, not an offer; see 30-year vs 15-year for how to choose.
How fast the balance falls
In the first year, $8,950 of the $10,792 you pay is interest; only $1,842 reduces the balance. The split reverses slowly: by year 15 most of each payment is principal.
| After | Remaining balance | Paid down |
|---|---|---|
| 5 years | $139,582 | $10,418 |
| 10 years | $125,529 | $24,471 |
| 15 years | $106,573 | $43,427 |
| 20 years | $81,005 | $68,995 |
| 25 years | $46,518 | $103,482 |
PMI tipping points: 80% and 78%
If this loan was more than 80% of the home’s original value, private mortgage insurance applies until the balance falls to 80% (cancellation on request) and 78% (automatic). By the schedule alone, with no extra payments or appreciation:
| Starting LTV | Home value | 80% (request) | 78% (automatic) |
|---|---|---|---|
| 97% | $154,639 | month 127 | month 138 |
| 95% | $157,895 | month 118 | month 129 |
| 90% | $166,667 | month 89 | month 103 |
Extra principal payments or a new appraisal showing appreciation can bring cancellation forward — see PMI removal. FHA mortgage insurance follows different rules.
What a late payment costs
Most mortgages charge a late fee of 4% to 5% of the principal-and-interest payment after a 15-day grace period (state caps vary): on this loan, about $35.97 to $44.97. The costlier consequence comes at day 30, when the servicer may report the payment late to the credit bureaus — a mark that stays seven years. Before it happens: the first 72 hours after a missed payment.
How the payment is computed
M = P × r(1 + r)n ÷ ((1 + r)n − 1), where P = $150,000, r = 6% ÷ 12 = 0.5000% per month, n = 360 (30 years) or 180 (15 years).
Same formula every lender uses; differences between quotes come from the rate, points and fees, never from the arithmetic. Balance after k payments: P(1 + r)k − M((1 + r)k − 1) ÷ r.
Frequently asked questions
What is the monthly payment on a $150,000 mortgage at 6%?
$899.33 a month for principal and interest on a 30-year fixed loan, or $1,265.79 on a 15-year fixed loan. Property taxes, homeowners insurance, mortgage insurance and any HOA dues are added on top and typically raise the total payment by 25% to 50%.
How much interest will I pay on a $150,000 loan at 6%?
$173,757 over 30 years, or $77,841 over 15 years, if every payment is made as scheduled with no extra principal. In the first year of the 30-year loan, about $8,950 of your $10,792 in payments is interest and $1,842 reduces the balance.
When can I cancel PMI on a $150,000 loan at 6%?
By the regular schedule alone, a loan that started at 95% of the home’s value reaches 80% loan-to-value in month 118 (when you may request cancellation) and 78% in month 129 (automatic cancellation). Extra principal payments or an appraisal showing appreciation can move that earlier.
Same amount, other rates: 5% · 7% · 8%. Same rate, other amounts: $200,000 · $250,000 · $300,000 · $350,000 · $400,000 · $500,000 · $600,000 · $800,000. All tables.