Can you give me some relevant tax tips? I'm a self-employed person who lives in the US.
No problem. Here are some tax tips for a self-employed person living in the US:

1. Make Estimated Quarterly Payments: The IRS requires all self-employed individuals in the US to make estimated quarterly payments for the tax they will owe at the end of the year. Doing this can help save on fines and penalties.
2. Save More Than Needed: Since it's almost impossible to estimate the exact amount of tax you will owe, it's always a good idea to put aside a little more than you think you might need. That way, if you do owe more, it won't be a problem, and if you end up getting some money back, it will be a nice surprise for your savings.
3. Keep Track of Expenses: The IRS allows you to write off business expenses, so make sure you keep track. Although they don't ask for evidence when submitting, they may if you're ever audited, so having receipts is a good idea. Some people keep a separate credit card and put all business expenses on that to make them easy to track.
4. Get a Professional Tax Preparer: Tax laws can be complicated, especially if you're self-employed. Getting a professional tax preparer can ensure you receive all of the refunds and credits you're entitled to, so you don't pay more than you have to.
5. Never Lie or Exaggerate: It's crucial to make sure you understand the IRS's rules and follow them. While they are generally forgiving of mistakes, tax evasion and avoidance are serious crimes.

Since everyone's tax situation is different, make sure you do your research and consider the advice of a financial expert, as they'll know what the best things to do in your situation are and how to save you the most money. 