These are the biggest levers for most employees and contractors, because they cut the income the IRS taxes at your top rate.
Put more into your 401(k)
Up to 23,500 out of taxable pay, plus 7,500 more from age 50
Money going into a traditional 401(k) is taken before federal income tax, so a 24 per cent taxpayer paying in the full 23,500 keeps about 5,640 that would otherwise go to the IRS. Employer matching is on top and does not use your limit.
IRS retirement plan limitsClaim a traditional IRA deduction
Up to 7,000, or 8,000 from age 50
If you are not covered by a workplace plan, or your income is inside the phase-out range, a traditional IRA payment comes straight off your income on Schedule 1, whether or not you itemise.
IRS IRA contribution limitsUse a health savings account
4,300 single, 8,550 family, plus 1,000 from age 55
An HSA is the only account that is deductible going in, untaxed while it grows, and untaxed coming out for medical costs. Paid through payroll it also escapes Social Security and Medicare tax.
IRS Publication 969Deduct self-employed retirement and health cover
Up to 25 per cent of net self-employment earnings into a SEP
Contractors and business owners can deduct a SEP or solo 401(k) payment, half of their self-employment tax, and their own health insurance premiums, all above the line on Schedule 1.
IRS self-employed retirement plans