FreelanceMassachusetts quarterly tax calculator for freelancers.
Massachusetts taxes most income at a flat 5%, with an extra 4% on taxable income over $1,107,750 for 2026. It has no standard deduction, and it only lets you deduct up to $2,000 of self employment tax.
Your next estimated payments
$15,034
Federal, due Jan 15, 2027
$3,330
Massachusetts, due Jan 15, 2027
Each is what you still owe for the year, split across the deadlines still ahead.
Next federal payment $15,034, due Jan 15, 2027. Next Massachusetts payment $3,330, due Jan 15, 2027.
Federal safe harbor $11,800 per payment
Pay at least $11,800 across the year, a quarter of it by each deadline, and the IRS underpayment penalty cannot apply. Based on 100% of last year's federal tax, which is the lower of the two tests.
Some 2026 deadlines have already passed. A quarter of that total was due by each one, so a quarter paid late can still carry a penalty; paying now stops it growing. See what it costs.
Massachusetts safe harbor $2,664 per payment
Pay at least $2,664 across the year, on the Massachusetts installment dates, and the Massachusetts underpayment charge cannot apply. Based on 80% of this year's estimated Massachusetts tax. Add last year's Massachusetts tax below to see if that test is cheaper.
Your taxable income is past the qualified business income threshold, so that federal deduction is being reduced by the wage limit. If you are in a specified service field, the reduction can be steeper than shown.
| What you earned | |
|---|---|
| Expected 1099 income | $85,000 |
| Less deductible business expenses | $12,000 |
| Net profit from freelancing | $73,000 |
| Self employment tax | |
| Earnings subject to self employment tax | $67,416 |
| Social Security portion | $8,360 |
| Medicare portion | $1,955 |
| Additional Medicare over the threshold | $0 |
| Self employment tax | $10,315 |
| Federal income tax | |
| Deductible half of self employment tax | $5,157 |
| Qualified business income deduction | $10,349 |
| Standard deduction for your filing status | $16,100 |
| Other W-2 income added back | $0 |
| Taxable income after deductions | $41,394 |
| Federal income tax | $4,719 |
| Federal total for 2026 | $15,034 |
| Less federal estimated payments already made | $0 |
| Still owed to the IRS | $15,034 |
| Your next federal payment | $15,034 |
| Massachusetts income tax | |
| Massachusetts 5% income before deductions | $73,000 |
| Less personal exemption and SE tax deduction (up to $2,000) | $6,400 |
| Massachusetts taxable income | $66,600 |
| Tax at the flat 5% rate | $3,330 |
| 4% surtax over $1,107,750 | $0 |
| Massachusetts total for 2026 | $3,330 |
| Less Massachusetts estimated payments already made | $0 |
| Still owed to Massachusetts | $3,330 |
| Your next Massachusetts payment | $3,330 |
| Federal and Massachusetts tax for 2026 | $18,364 |
Stop re-entering this every quarter. FreelanceCFO tracks it from your real income and warns you before each deadline.
Start freeHow Massachusetts is different.
Massachusetts taxes income at a flat 5%, plus 4% over $1,107,750. These are its 2026 estimated payment dates. If one falls on a weekend or holiday, it moves to the next business day.
2026 payment dates
- Apr 15, 2026
- Jun 15, 2026
- Sep 15, 2026
- Jan 15, 2027
What changes in Massachusetts
- No standard deduction. The personal exemption is $4,400 single, $6,800 head of household, and $8,800 joint.
- Self employment tax is deductible only up to $2,000, and together with any Social Security and Medicare withheld from wages.
- Safe harbor is 80% of this year's tax or 100% of last year's (Form M-2210), with no 110% step up.
- The 4% surtax applies to taxable income over $1,107,750 for 2026, and anyone who owes it must file and pay electronically.
Questions answered.
Does the Massachusetts 4% surtax apply to me?
Only if your Massachusetts taxable income is over $1,107,750 in 2026. The surtax is 4% of the amount above that threshold, on top of the 5% on everything, and it has to be included in your estimated payments. Anyone subject to it must file and pay electronically.
Can I deduct self employment tax in Massachusetts?
Partly. Massachusetts lets self employed people deduct the employment tax they paid, but only up to $2,000, and that $2,000 also covers any Social Security and Medicare withheld from wages. Federally you deduct half of your whole self employment tax, which is usually far more.
What is the Massachusetts safe harbor for estimated tax?
Form M-2210 avoids the penalty if your payments reach 80% of this year's tax, or if they equal or exceed last year's tax from a full year return. Both tests are gentler than the federal 90% and 110%.