I'm a small business s corp owner with no employees. I pay myself a salary. Should I lower my salary for 2018 to take advantage of the 20% tax reduction?

[rlynn12]

I pay myself a salary and pay fed and state taxes.  I pay double taxes on the SS and Medicare. 

[Critter]

Rule 1 ... as an S-corp owner  you must pay yourself a reasonable salary and file a W-2 & W-3 for that payment.  If you are the only one working the business then the IRS will expect that a good portion of the income should be wages and not draws. Failure to do so will invite an IRS audit.

If you suddenly reduce  the rate of pay you receive to "take advantage" of the new laws may be considered tax evasion and get you audited. Of course, this is new territory and the IRS has yet to issue rules & regulations on this situation so only time will tell how much leeway business will have for this situation.