So I think we may have been given a nice gift for 2021. I'm just now starting to work through it since we'll need to make some money moves before the end of the year to fill out our 2021 income.
Form 8962 (ACA Premium Tax Credit) appears to be finalized already for 2021. I had 1099 income that was impacted by the pandemic so I drew unemployment for a spell this year. According to Form 8962, drawing or being eligible for just one week of unemployment means we get to treat our family's income as 133% of the Federal Poverty Line, regardless of what our actual income for the year is. At 133% FPL, the income-based percentage we contribute to our ACA premiums is 0%. So for this year only, as I understand it we basically have free reign to make our income as high as we'd like without incurring steep marginal ACA tax increases (loss of premium subsidy).
In addition to this, ordinary income tax rates are several percentage points lower in recent years thanks to the Tax Cuts and Jobs Act of 2017. So for a couple Married Filing Jointly, ordinary income up to $81,050 this year is taxed at 12% instead of 15%.
There's also part of me that is thinking about long-term capital gains taxes and how it seems fairly likely that they'll become a target for tax increases. I'm not sure how far I want to push our income. With the standard deduction for MFJ, we could have a ~$106k AGI comprised entirely of ordinary income and only pay 8.8% in Federal taxes. Our state taxes everything over the state deduction at 5.25% so there's no marginal tax increase for a higher income.
Alternatively, we could have 25k in ordinary income, ~81k in LTCG, and pay $0 federal tax this year, ACA premiums included. This is really tempting but I think it might be short-sighted since we may not have another opportunity to generate an income of hundreds of thousands of dollars with extremely minor marginal tax consequences.
Currently, we have almost 300k in LTCG that we could declare if we chose. We wouldn't declare all of that because it would trigger Alternative Minimum Tax. However, we could calculate where AMT would start generating more income tax than the normal method and run our income right up to that threshold. At first glance it looks like that's going to be somewhere right around 210k, considering the higher exemption for the AMT calculation.
So 106K in ordinary income + 103k in LTCG = 209k AGI. Total Federal tax bill looks to be ~25k, or 12% of AGI. State tax adds another ~10k. So 35k in total taxes, or ~16.75% tax rate on 209k of income.
When I run projections with pre-Biden ACA figures, the lowest I can get our tax rate is ~13% all-in (Federal + State + ACA premiums). If the subsidy cliff returns after 2022, that would basically reinstate a hard income limit for us because insurance premiums in our state are some of the highest in the country. The unsubsidized yearly premium for the two of us is $12,900 in 2021 so there are no circumstances where we want to go over the cliff.
I'm having a hard time finding downsides to taking this one year to blow out our income while we have the chance. Are there things I'm missing? I know this is a fairly complicated subject but...thoughts?