Paying down additional principal each month

[Billy Mcavoy]

I’m a first time home buyer and looking for some advice. I purchased a condo in December 2020 (in DC) and currently live in my unit. I’m moving to NYC in mid May and will be renting out my DC condo around June 1st. I have a good interest rate (2.75% rate) and have been paying an additional $250 down on principle each month. At this rate it’s estimated that I’ll pay off my loan 10 years early saving ~$31k in interest payments.

If I stop paying additional $250/month on my principal my cash flow will be more or less break even on month. However, if I pay down $250 extra on principal each month I’ll have negative cash flows but I’ll build equity in the property faster and avoid paying more interest in long run. What’s the general guidance when considering additional monthly payments on principal?  Am I doing the right thing or should I forgo paying extra down on principle each month?