If you setup your withholdings properly, you won't get a tax return. That's more money, in your pocket, as you earn it. It's March now, so, it's not too late to fix the rest of the year and deny creepy Uncle Samuel a free loan. Also to answer you question of "do you commit tax fraud", no, absolutely not. I evade taxes everywhere it is legal to do so, as is the duty of every taxpayer, but writing off things dishonestly is not one of the ways I do so. I shoot for zero return every year, and usually land plus or minus a few hundred dollars.
Also, remember that you can receive 18k per person (as of 2024) as a tax free gift, every year, and being that nothing a lady does is considered "work" (that'd be illegal mind you), she's simply been well gifted, so no real reason to pay taxes at all. If they'd like to make a donation to creepy Uncle Samuel so he can continue buying missiles to shoot at brown kids in 3rd world countries, they're free to do so.
On the hobbyist end of things, if you gift over 18k to a single lady, well, you might as well marry her at that point, but you do have to file a 709 and they'll want to know her name and whatnot, so, avoid that whenever possible.