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Loan & investment calculators

Mortgage

Editable example — enter your own loan details.

The amount you borrow, after your down payment. Example: a $500,000 home minus $150,000 down = $350,000 loan.
The yearly interest rate charged by your lender. Enter 4.5 for 4.5%.
The planned time to repay the whole loan. A 25-year amortization spreads payments over 25 years.
Optional extra money paid each payment period. Enter 0 for no extra payment. It reduces the debt faster; check your lender’s prepayment limits.
More options
How long your current mortgage contract lasts before renewal. A 5-year term does NOT mean the loan is paid off in 5 years. A 25-year mortgage may renew after 5 years at a different rate.
An assumed yearly investment return for the comparison. It is not guaranteed and investments can lose value.
How many years ahead you want to compare paying extra on the mortgage versus investing that same extra money.
Home value & ownership
The value of the home at the start of this projection. The difference between this and the loan is your starting equity.
Your assumed annual house price change. Enter 3 for 3% growth, 0 for no change, or a negative number for a decline. This is not guaranteed.
Yearly property tax, insurance, maintenance and condo fees, excluding mortgage payments. These are extra household expenses.
How much ownership expenses rise each year. Enter 2 for a 2% annual increase.
How this works

Examples, not lender quotes. The loan rate stays fixed for the projection, including after mortgage renewal. Payments occur at equal intervals and are rounded to cents. Taxes, insurance, fees, prepayment penalties and investment taxes are excluded. Car loans calculated using daily interest may differ. Check your contract’s interest rate and prepayment rules; APR that includes fees is not the same input.

Amortization is the full repayment period. The term is when the mortgage contract renews. The remaining balance is not an extra fee.

Both paths start with the same loan and use the regular payment plus your extra amount every period. Prepay: reduce debt first, then invest any freed budget after payoff. Invest: make normal loan payments and invest the remainder. Contributions are invested at period-end. The asset you financed is the same in both paths and cancels out; this is not a buy-versus-rent or car-value comparison. Returns are assumed, not guaranteed; losses are possible.

Method references: FCAC · CFPB

Regular payment · Monthly$1,937.16With extra payments: $2,137.16
Total interest · Full repayment projection$231,145.40With extra payments: $190,365.71
Interest saved$40,779.69Time to repay: 21.08 years / 25

Loan balance over time

Normal paymentsWith extra payments
Loan balance over time: $350,000.00 → $0.00$350,000.00025 years

How your payments build ownership · Normal payments

Principal paid that yearInterest paid that year
Year 1: Principal paid that year $7,799.68 · Interest paid that year $15,446.24Year 2: Principal paid that year $8,154.62 · Interest paid that year $15,091.30Year 3: Principal paid that year $8,525.71 · Interest paid that year $14,720.21Year 4: Principal paid that year $8,913.66 · Interest paid that year $14,332.26Year 5: Principal paid that year $9,319.32 · Interest paid that year $13,926.60Year 6: Principal paid that year $9,743.38 · Interest paid that year $13,502.54Year 7: Principal paid that year $10,186.76 · Interest paid that year $13,059.16Year 8: Principal paid that year $10,650.34 · Interest paid that year $12,595.58Year 9: Principal paid that year $11,134.98 · Interest paid that year $12,110.94Year 10: Principal paid that year $11,641.71 · Interest paid that year $11,604.21Year 11: Principal paid that year $12,171.47 · Interest paid that year $11,074.45Year 12: Principal paid that year $12,725.34 · Interest paid that year $10,520.58Year 13: Principal paid that year $13,304.44 · Interest paid that year $9,941.48Year 14: Principal paid that year $13,909.86 · Interest paid that year $9,336.06Year 15: Principal paid that year $14,542.85 · Interest paid that year $8,703.07Year 16: Principal paid that year $15,204.64 · Interest paid that year $8,041.28Year 17: Principal paid that year $15,896.54 · Interest paid that year $7,349.38Year 18: Principal paid that year $16,619.94 · Interest paid that year $6,625.98Year 19: Principal paid that year $17,376.26 · Interest paid that year $5,869.66Year 20: Principal paid that year $18,166.99 · Interest paid that year $5,078.93Year 21: Principal paid that year $18,993.70 · Interest paid that year $4,252.22Year 22: Principal paid that year $19,858.02 · Interest paid that year $3,387.90Year 23: Principal paid that year $20,761.68 · Interest paid that year $2,484.24Year 24: Principal paid that year $21,706.45 · Interest paid that year $1,539.47Year 25: Principal paid that year $22,691.66 · Interest paid that year $551.661 · Year25 · Year
Details & investment comparison

Home equity + investments · 5 · Year

Pay extra on mortgageInvest the extra money
Home equity$285,764.91$272,350.03
Investment balance$0.00$13,897.16
Home equity + investment balance$285,764.91$286,247.18
Ownership costs over comparison period$31,224.24$31,224.24

Include property tax, insurance, maintenance and condo fees. Costs are paid separately from the mortgage/investment budget and are identical in both strategies. They are shown separately, not deducted from asset values. Selling costs, taxes and investment fees are excluded.

Year-by-year home story
YearProjected house valueRemaining mortgagePrincipal repaidHome equityWith extra payments · Home equity
0$500,000.00$350,000.00$0.00$150,000.00$150,000.00
1$515,000.00$342,200.32$7,799.68$172,799.68$175,249.35
2$530,450.00$334,045.70$15,954.30$196,404.30$201,415.09
3$546,363.50$325,519.99$24,480.01$220,843.51$228,531.96
4$562,754.41$316,606.33$33,393.67$246,148.08$256,636.05
5$579,637.04$307,287.01$42,712.99$272,350.03$285,764.91
6$597,026.15$297,543.63$52,456.37$299,482.52$315,957.50
7$614,936.93$287,356.87$62,643.13$327,580.06$347,254.41
8$633,385.04$276,706.53$73,293.47$356,678.51$379,697.80
9$652,386.59$265,571.55$84,428.45$386,815.04$413,331.51
10$671,958.19$253,929.84$96,070.16$418,028.35$448,201.12
11$692,116.94$241,758.37$108,241.63$450,358.57$484,354.04
12$712,880.44$229,033.03$120,966.97$483,847.41$521,839.55
13$734,266.86$215,728.59$134,271.41$518,538.27$560,708.94
14$756,294.86$201,818.73$148,181.27$554,476.13$601,015.49
15$778,983.71$187,275.88$162,724.12$591,707.83$642,814.66
16$802,353.22$172,071.24$177,928.76$630,281.98$686,164.16
17$826,423.82$156,174.70$193,825.30$670,249.12$731,123.95
18$851,216.53$139,554.76$210,445.24$711,661.77$777,756.44
19$876,753.03$122,178.50$227,821.50$754,574.53$826,126.56
20$903,055.62$104,011.51$245,988.49$799,044.11$876,301.85
21$930,147.29$85,017.81$264,982.19$845,129.48$928,352.57
22$958,051.70$65,159.79$284,840.21$892,891.91$958,051.70
23$986,793.26$44,398.11$305,601.89$942,395.15$986,793.26
24$1,016,397.05$22,691.66$327,308.34$993,705.39$1,016,397.05
25$1,046,888.96$0.00$350,000.00$1,046,888.96$1,046,888.96

Equity = house value − remaining mortgage. Principal repayment transfers money into equity; it is not investment profit. Starting equity is assumed to be your down payment (no financed fees).

House values can fall. These are assumptions, not guaranteed returns. The same home is held in both strategies; this is not a rent-versus-buy comparison. Charts cover the full amortization or comparison period, whichever is longer. The mortgage rate is held constant; renewal rates can change.

Full repayment projection · Mortgage term summary

Full repayment projection

Total loan payments: $581,145.40With extra payments: $540,365.71

Fixed-rate estimate. Fees, taxes, insurance and prepayment penalties are excluded.

Mortgage term summary · 5 years

Normal paymentsWith extra payments
Interest during term$73,516.61$72,101.73
Balance at renewal$307,287.01$293,872.13

Amortization is the full repayment period. The term is when the mortgage contract renews. The remaining balance is not an extra fee.

Amortization schedule

Amortization schedule

YearOpening balanceRegular paymentPrincipal paidInterest paidBalance leftInterest to date
1$350,000.00$23,245.92$7,799.68$15,446.24$342,200.32$15,446.24
2$342,200.32$23,245.92$8,154.62$15,091.30$334,045.70$30,537.54
3$334,045.70$23,245.92$8,525.71$14,720.21$325,519.99$45,257.75
4$325,519.99$23,245.92$8,913.66$14,332.26$316,606.33$59,590.01
5$316,606.33$23,245.92$9,319.32$13,926.60$307,287.01$73,516.61
6$307,287.01$23,245.92$9,743.38$13,502.54$297,543.63$87,019.15
7$297,543.63$23,245.92$10,186.76$13,059.16$287,356.87$100,078.31
8$287,356.87$23,245.92$10,650.34$12,595.58$276,706.53$112,673.89
9$276,706.53$23,245.92$11,134.98$12,110.94$265,571.55$124,784.83
10$265,571.55$23,245.92$11,641.71$11,604.21$253,929.84$136,389.04
11$253,929.84$23,245.92$12,171.47$11,074.45$241,758.37$147,463.49
12$241,758.37$23,245.92$12,725.34$10,520.58$229,033.03$157,984.07
13$229,033.03$23,245.92$13,304.44$9,941.48$215,728.59$167,925.55
14$215,728.59$23,245.92$13,909.86$9,336.06$201,818.73$177,261.61
15$201,818.73$23,245.92$14,542.85$8,703.07$187,275.88$185,964.68
16$187,275.88$23,245.92$15,204.64$8,041.28$172,071.24$194,005.96
17$172,071.24$23,245.92$15,896.54$7,349.38$156,174.70$201,355.34
18$156,174.70$23,245.92$16,619.94$6,625.98$139,554.76$207,981.32
19$139,554.76$23,245.92$17,376.26$5,869.66$122,178.50$213,850.98
20$122,178.50$23,245.92$18,166.99$5,078.93$104,011.51$218,929.91
21$104,011.51$23,245.92$18,993.70$4,252.22$85,017.81$223,182.13
22$85,017.81$23,245.92$19,858.02$3,387.90$65,159.79$226,570.03
23$65,159.79$23,245.92$20,761.68$2,484.24$44,398.11$229,054.27
24$44,398.11$23,245.92$21,706.45$1,539.47$22,691.66$230,593.74
25$22,691.66$23,243.32$22,691.66$551.66$0.00$231,145.40