Does Massachusetts tax 401k withdrawals?

Yes. Massachusetts taxes 401k and IRA withdrawals as ordinary income at up to 5.0%. On a $50,000 annual withdrawal, that is $2,500 in state tax per year. Factor this into your Roth vs traditional 401k decision.

What is the 401k contribution limit in 2026?

The 2026 401k contribution limit is $23,500 for employees under 50, plus a $7,500 catch-up contribution for those 50 and older. In Massachusetts, the combined pre-tax tax savings at a 22% federal rate plus 5.0% state rate is $6,345 per year on a full contribution.

Should I do a traditional or Roth 401k in Massachusetts?

In Massachusetts, traditional 401k contributions reduce your tax bill today by 27.0%, but withdrawals will be taxed at up to 5.0% state + federal rate. Roth 401k contributions are post-tax but grow tax-free. If you expect to be in a lower tax bracket at retirement, traditional wins. If equal or higher, Roth is better.

Not Financial Advice. CalcMoney provides calculators for educational and planning purposes only. Results are estimates and do not constitute financial, tax, or investment advice. Consult a qualified professional before making financial decisions. Terms apply.

CALCMONEY // 401K ANALYZER // MA

Massachusetts 401k Analyzer 2026

Massachusetts taxes 401k distributions at up to 5.0%. Contributing pre-tax saves $6,345/year at 22% federal + 5.0% state.

Analyze Your 401k

2026 Contribution Limit

$23,500

Annual Tax Savings (22% + state)

$6,345

State Taxes Distributions

Yes

30yr Balance (max contrib)

$2,219,828

401k Projections in Massachusetts

MAX ANNUAL CONTRIBUTION — 7% ANNUAL RETURN — AFTER-TAX WITHDRAWAL AT 27.0%

Horizon	Gross Balance	After-Tax Value (MA)	Annual Contribution Savings
20 years	$963,394	$703,278	$6,345/yr
30 years	$2,219,828	$1,620,475	$6,345/yr

Massachusetts 401k Rules: What Matters

MA RETIREMENT TAX CONTEXT

The 2026 401k contribution limit is $23,500 ($31,000 if you are 50+). In Massachusetts, pre-tax contributions reduce your taxable income at both federal (22%–37%) and MA state (5% + 4% surtax on $1M+) levels. Annual tax savings on a full contribution: $6,345.

Massachusetts taxes 401k and traditional IRA distributions as ordinary income at up to 5.0%. On a $89,640/year retirement income, that is $4,482 per year in state tax. Consider Roth 401k contributions if you expect to retire in MA and your future bracket is similar to today.

Related Calculators

401k Analyzer Roth Conversion Retirement Calculator Social Security