I think if you look at any of your pay stubs, you'll see they show year to date income. One is enough. The affidavit of support does not ask for your projected 2025 income. It asks for "current income". In your case, that numbers may be the same, but the formula is gross pay for a pay period times the number of pay periods in a full year (any full 12 months). So, if you make a grand a week, starting last month, your current income is stated as 52k. Has nothing to do with any calendar year. Past tax return information is all that goes by calendar year.