So, my main client has taken to not paying me on time - at least half of my invoices have been paid late in 2019. Not super late - I send a reminder as soon as they are, in fact, late with paying me and then they send me payment via ACH and the money is in my account the next day typically.
Per the terms of my contract, payment is due within 30 days of receipt. So as with most months, I sent the invoice on 12/1 - payment should be received on or before 12/31, but if it is a repeat of last month, on 1/1 I'll be sending a reminder email, and I'll actually be paid on 1/2 or 1/3. Wonder what others think will happen on this one? Company was acquired and this "we don't always pay our bills on time" is something new for me.
Secondarily, can someone remind me what to do if they pay me in 2020, but include the income on my 1099 for 2019? I have been paid just enough so far this year to max my SoloK, so the timing of this last payment doesn't really impact anything tax-wise that I'm aware of (other than, you know deferring taxes to 2020 if it is paid late). I remember something from a few years back that could be done to re-concile a 1099 tax-year mismatch, but I don't remember the details.