Get cheap incentive stock options (ISOs) with very favorable terms and a $1 salary.
For example, 20% of the company at $.05/share vesting over 4 years with a termination clause (e.g., if you leave or get fired, you have 6 months to exercise). Add in an acceleration clause, too, if you want.
Now you're investing in the company and there is no income to report.
If the company continues to look promising, you can exercise some options and file an IRS 83-b.