My wife and I will be retiring in early 2024. We will have two pensions and both of our social security benefit distribution. I have the gross monthly amount but we need to know the take-home / net amount we can expect to live off of. I'm 70, she's 66 and we will be filing married jointly. I tried using the W4 withholding calculator but it is asking for 2023 information which doesn't matter for our purposes but won't let me proceed without it. How can I calculate our estimated net pay? Thank you.