Paying only a little over of 5k of taxes I think is pretty good.
Depending on your entire financial situation over the remainder of your life, you may be optimizing to the wrong variable.
When I first FIREd, I was living off of savings and my taxable account. And with low spending (paid off house and car and simple lifestyle), I could end up with a low taxable income like you and pay really low taxes. Which I did for the first few years. Then my three kids were in college and I could get the AOTC for each of them for four years, so that made it even easier to pay really low taxes. It was lovely and easy to have those small tax bills.
Here's the problem that I found: All of my tax deferred money was growing and growing. I also found out that my SS benefit is given in current year dollars, so I needed to inflation adjust that amount for planning. And there is a possible inheritance. If I kept going the way I was going, then in my 70s I'd be paying quite high marginal tax rates.
While there are arguments to the contrary, most people who look at this situation realize that it probably makes sense to pull forward that income from those future higher marginal tax rate to a current year lower marginal tax rate. So in my case, if I can pay 2x% now at 55 instead of 3x% in my 70s, then I've increase my lifetime after-tax spendable income.
In your case, if you're filing single and those two jobs are the majority of your income and you take the standard deduction, your taxable income is somewhere around $25K which puts you in the middle of the 12% bracket. You left about $20K of the 12% bracket unfilled.
If you project out to when you're in your 70s, those tax-deferred accounts and SS and any additional contributions you make, I bet you'll find that you're in at least a 2x% bracket.
My suggestion would be to consider changing your contributions into Roth-like vehicles such that you fill up that 12% tax bracket every year. Yes, you'll pay more taxes now. But I think you'll have more after-tax spendable income over your life time because you're paying taxes at 12% instead of 2x%.
Personally I've determined what I think is my tax-equilibrium rate - if I can pay taxes at that rate or less voluntarily now, I'll do so. If I would have to pay at above that rate now, I'll defer and pay taxes later. There are some details that go into figuring this out. But basically, I sit down every tax season and do a combination of Roth conversions in December and small HSA contributions in February to dial my AGI in to where I pay up to, but not above, that tax-equilibrium rate.
In any given year, the effect is not particularly great, but over a few decades it can add up to real money.
Side note: refundable credits and things like the ACA and FAFSA can make this analysis tricky because your actual marginal tax rate can vary from what the tax bracket would nominally say. It also means my guesses as to your tax situation this year might be off base. I use the Case Study Spreadsheet each year (updated in a thread here on MMM by MDM) to look at the actual federal tax effects of things like ACA subsidies and tax benefit cutoffs and phase out ranges.
