I currently owe $34,558.00 in student loans ($31,000.00 principal + $3,601.83 unpaid interest accrued so far) with an average interest rate of 4.877%. I just started working full time ($70,000 GAI) and I can now start making payments.
I'd like to figure out the best way to pay off loans as early as possible without completely depleting my income, so I've come up with the following table (figures are based on this website http://studentloanhero.com/calculators/student-loan-prepayment-calculator/):
+---+-----------------+----------------+-------+
|Yrs| Monthly Payment | Interest Saved | Ratio |
+---+-----------------+----------------+-------+
| 2 | $1,576.89 | $7,467.49 | 4.74 |
| 3 | $1,061.26 | $5,530.73 | 5.21 |
| 4 | $809.22 | $4,893.38 | 6.05 |
| 5 | $659.94 | $4,799.45 | 7.27 |
| 6 | $561.32 | $3,882.68 | 6.92 |
| 7 | $491.37 | $2,952.55 | 6.01 |
| 8 | $439.23 | $1,570.36 | 3.58 |
| 9 | $398.92 | $1,051.44 | 2.64 |
+---+-----------------+----------------+-------+
The first two columns give the time frame (in years) in which all loans would be paid off using the given monthly payment amount. The third column gives the amount of interest saved compared to choosing the standard 10-year repayment plan. The last column gives the ratio of Interest Saved / Monthly Payment.
My interpretation of the ratio column is that a higher ratio combines the best total interest savings amount with the lowest monthly repayment amount. In other words, I could choose to pay $1,576.89 each month (about 42% of my take-home pay each month) for 2 years and maximize interest savings...or I could pay $659.94 per month (about 17% of my take-home pay) for 5 years, which loses me $2,668.04 in total but gives me a much healthier budget for other things each month.
So...
- Do these figures look reasonably correct?
- Am I overcomplicating this? Should I go with the 5-year plan I described, or try to pay as high a monthly payment as I can realistically afford each month?