Calorie goal interaction with calories given back from exercise

As noted, the general answer is that MFP is designed with the intent that you should eat the exercise calories. In that context, MFP also expects that your "activity level" setting (in your profile) does not include intentional exercise, but rather reflects daily life activity such as job and home chores.

To personalize advice, we need to know more about you, as Yirara said.

If the 1000 calories is coming from a good tracker sync-ed to MFP, I would suggest eating them, or at least a large fraction. When you have a tracker sync-ed, MFP and the tracker compare what MFP expected you to burn that day with what the tracker saw you as burning. If you were burned more calories than MFP expected, those calories get added to your goal. (In this scenario, it would also be good to turn on the negative calorie adjustment in MFP.)

Trackers can over-estimate, but it's a very personalized estimate, so somewhat more trustworthy than separately logging exercise, for people who are close to average (as most are). Also, the way the reconciliation (tracker to MFP) happens will tend to compensate for an inaccurate MFP activity level setting. (In contrast, if a person sets activity level too high, logs exercise on top of that, they can be double dipping and get too many calories in their goal.)

Further, MFP's exercise database is likely to overestimates some exercises, so without knowing what you're doing, it's hard to comment. Machines can overestimate, too. If we knew what you were doing, for how long and how intensely (pace or subjective feelings), we might be able to give you feedback.

So, we need more details. 2080 is a fairly high calorie goal for a woman (which I'm guessing you are, from your user name). 3080 is very unusually high for a woman, even with a pretty substantial exercise routine . . . but not impossible. If you are quite overweight, have a very active job, and also a substantial exercise schedule, you may lose weight at 3080. We just don't have enough information about you to give you reasonable feedback.

Since 3080 would be an unusually high weight loss calorie goal for a woman, you may get some skepticism or pushback about it . . . but it's possible that it's correct.

Best wishes!

P.S. I ate all of my carefully-estimated exercise calories all through weight loss, and 7+ years of maintaining a healthy weight since. It's a rare thing, but it turned out the MFP underestimated my base calorie needs, so I needed to increase my base goal, then add exercise, to get the right results. Most people won't experience that, but I mention it because it is possible. Once I got that figured out, my weight loss rate was very predictable based on my calorie intake, when I looked at the loss as multi-week average loss rate. (Scale loss will spike up and down randomly with water retentions shifts, so the multi-week trend is what tells the real story.)