What creators in Montana actually owe.
Every number on this page is computed by Post’s tax engine — the same one that runs the dashboard — from Montana’s 2026 rules, not copied from a blog post. Verified against Mont. Code §15-30-2103; HB 337 (TY2026).
Montana tore its income tax down to the studs recently — a many-bracket system became a two-step one, and the legislature has kept adjusting it since. If your intuition comes from Montana returns filed a few years ago, it's describing a tax that no longer exists.
The new structure is unusually friendly to federal thinking. Montana conforms to the federal standard deduction, and — rarer — it honors the federal QBI deduction, which most states quietly add back. The deductions you worked out on the federal side keep working on the state side, making Montana one of the few states where your federal and state taxable incomes actually resemble each other.
The second bracket starts at income levels a full-time creator genuinely reaches, so a growing channel migrates from the lower rate to the top one — a real step, but a modest one. The quarterly dates mirror the federal calendar; nothing extra to remember there.
Pay Montana estimates at Montana TransAction Portal (TAP). Federal payments go through IRS Direct Pay — Post pre-fills both.
A $8,000/mo creator in Montana, single filer
Effective rate: 24% of net profit. Your expenses, filing status, and income change this — run your own numbers below.
Generally yes, if you expect to owe $1,000+ in federal tax for the year — platform and brand-deal income has no withholding, so the IRS expects four payments a year, and Montana runs its own estimated-payment schedule on top. Post computes both and reminds you before each date.
It depends on income and filing status — flat percentages lie. As one honest reference point: a single filer earning $96,000 a year with $19,200 of business expenses owes about $18,582 all-in (federal + self-employment + Montana) — an effective 24% of net profit. Post recalculates your number as money lands.
Gifted product you keep is generally taxable income at fair market value on your federal return — and state taxable income starts from the federal numbers. Post logs PR at FMV in seconds so April doesn't surprise you.
Yes — Montana conforms to the federal qualified business income deduction, which most states with income taxes don't. Post's engine models each state's conformity individually, so your Montana estimate reflects the deduction instead of pretending the state adds it back.
Montana taxes long-term capital gains under its own separate, lower rates — a different calculation from the ordinary-income tax on your creator profit, and outside Post's Schedule C estimate. If you're selling appreciated assets in a Montana tax year, run it past your CPA — free seat on Pro.