The IRS released the 2027 tax brackets last week, and every bracket moved up roughly 3% for inflation. Think of it as a quiet raise for most households, since the same income lands a little lower on the ladder next year.
For most people, a tax bracket is a number they hear once a year and forget. For us, it is one of the most useful numbers in a financial plan. It tells us when to save pre-tax and when to go Roth, how much to convert, when to take income, and how much a raise or a bonus will actually keep. Below are the new numbers, what they mean, and how we put them to work.
The 2026 and 2027 brackets
These are taxable income ranges, meaning income after the standard deduction (or itemized deductions). The seven rates themselves are now permanent under the 2025 tax law, so the long-feared “2026 sunset” is off the table.
Married filing jointly
Single
How the brackets actually work
Our system is progressive: your income fills the brackets like buckets, from the bottom up. Each rate applies only to the dollars inside its bucket.
The most common misconception we hear, especially from high earners, is “I’m in the 37% bracket, so I lose 37% of everything.” Not true. A couple earning $900,000 pays 10% on their first $25,600 of taxable income, 12% on the next slice, and so on. Only the dollars above $793,650 see 37%. The same logic kills the old myth that a raise can cost you money. Crossing into a new bracket only changes the rate on the dollars that cross.
This gives you two rates you should understand.
- Marginal rate: the rate on your next dollar. This drives decisions: should this contribution be pre-tax or Roth, is this deduction worth chasing, how much of this bonus do I keep.
- Effective rate: your total tax divided by your income. This is what you actually pay, and it is the number that shows whether your plan is working over time.
A quick 2027 example. A married couple earns $250,000 in W-2 wages and takes the standard deduction.
Their marginal rate is 22%. Their effective rate is about 14.7% of gross income. That 7-point gap is where planning lives. In long-term planning we model the effective rate year by year, across working years, early retirement, and the years when Social Security and required distributions stack up. The goal is not the lowest tax bill this April. It is the lowest lifetime tax bill, paid at the lowest average rate.
How we use brackets in your plan
Most accountants, by the nature of the job, work in the rearview mirror. Their focus is reporting what already happened, accurately and on time. Financial planners spend our days looking through the windshield at what comes next, which is why we work closely with our clients’ CPAs. The two views together make the best decisions. One forward-looking accountant gave us a rule of thumb that shapes a lot of the tax advice we give.
“Whenever you’re presented with a lower tax bracket, pay taxes at that bracket.”
It sounds simple because it is. It is also the whole case for Roth conversions.
Every dollar in a pre-tax 401(k) or IRA is a dollar the IRS has not taxed yet. You will pay that tax eventually, either when you withdraw it or when your heirs do. The only question is at what rate. So we look for the years when your rate is relatively low, and we deliberately pull income into them.
The gap years are the biggest needle mover. For many clients, the lowest-tax years of their entire adult life come right after retirement:
- The paychecks stop. Taxable income can drop close to zero.
- Social Security hasn’t started. Especially if we are delaying benefits toward age 70.
- Required minimum distributions (RMDs) haven’t started. For most people now retiring, RMDs begin at age 73 or 75.
That window can be 5 to 10 years long. During it, we convert pre-tax money to Roth on purpose, “filling up” the 12% or 22% bracket each year. A retired couple in 2027 with no other income could convert roughly $137,000 (the top of the 12% bracket plus the standard deduction) and still never pay more than 12% on any dollar.
Why not just wait? Because later, the buckets get crowded. Social Security, RMDs, pensions, and investment income all land on top of each other, and they can push you into a higher bracket in retirement than you were in while working. And remember that the single brackets are half the size: when one spouse passes, the survivor often has nearly the same income squeezed into brackets half as wide. Converting in the gap years shrinks the future RMDs that cause both problems.
The same rule applies in other moments, too: a sabbatical, a year between jobs, a business with a down year, or the early years of a career. Any year your bracket dips is a year to consider Roth contributions or conversions.
“How can I reduce my taxes?”
It is the question we hear most. Business owners have plenty of levers. W-2 earners have fewer, so it pays to use every one in the right order. Here is how we rank them, from most to least powerful.
Two catch-up rules to know. First, starting in 2026, if your prior-year wages from your employer were over $150,000 (projected $155,000 for 2027), your catch-up contributions must go in as Roth. You keep the savings, but you lose the deduction on those dollars. Second, the larger catch-up for ages 60 to 63 is only available in the calendar years you turn 60, 61, 62, or 63.
Pre-tax is not always the answer. Go back to our accountant’s rule. If you are in the 10% or 12% bracket today, a Roth 401(k) or Roth IRA may beat the deduction, because your future rate is likely to be the same or higher. Saving pre-tax at 22% and paying it back at 12% in retirement is a win. Saving pre-tax at 12% and paying it back at 24% is not. The right mix depends on where you sit today and where we project you will sit later, which is exactly what a financial plan is for.
2027 401(k) and catch-up limits are projections and have not been released by the IRS as of this writing. Sources: 401(k) Specialist on 2027 HSA limits, 401(k) Specialist on 2027 401(k) projections, CPA Practice Advisor.
The takeaway
Your bracket is not a label. It is a tool. Know your marginal rate when you make a decision, watch your effective rate over a lifetime, and pay tax on purpose in the years it is cheapest. If you would like us to map your brackets from now through retirement and find your conversion window, reply to this email or book a time with us.
This newsletter is for educational purposes only and is not tax or legal advice. Please consult your tax professional about your specific situation.
