How coorelated are Tax returns to interest rates?

[Jesse Aaron]

Hi, I’ve been looking at potential rentals and in the process have found a home my wife and I are interested in buying for ourselves. I spoke to the realtor and feel like we don’t have to get in a big hurry because homes are moving slow in this area (rural area). My concern with making an offer before my taxes are complete is that I’ve heard a lender typically wants 2 years tax records. I started my current job in 2018 and got a substantial raise. If I provide my 2 yr tax records right now, it would be for 2017 & 2018 (45k and 72k) vs if I wait until the end of February when my 2019 taxes are complete, my 2 yr tax records will show 72k and 94k. Is this worth waiting until my 2019 taxes are prepared?

Will this alone make a major difference in interest rates or are there other variable to consider. Also, I have around 18% to put down if that matters.