Can I use overtime as income when getting a mortgage?

I’m 22 and am looking to purchase a house within 5-8 months. My credit score is around 630 (looking to boost to hopefully 640 before getting preapproved). I pay $540 a month in debt (car payment and low balance credit cards I used to obtain credit history). My base pay is $2500 gross income a month, however my over time pay changes my gross monthly income variable between $4800-6000 a month. I started this career almost a year ago, and in july of 2020 will be one year of consistent high over time. Reason OT started in July was I was finishing training, and no OT in training. Will my overtime count toward my monthly income if it’s consistent every month?

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