Tax Questions Nobody
Else Will Answer.
Expert answers for visa holders, gig workers, freelancers, and anyone with back taxes — the niches most CPAs turn away.
Nexus Tax Books specializes in non-resident tax filing, H-1B & F-1 back taxes, gig worker returns, freelancer self-employment taxes, crypto income, and cash-paid workers — all handled fully online with flat-rate pricing.
Filing 1040-NR as an H-1B worker is incorrect. You must amend using Form 1040-X, pay any owed FICA taxes plus interest, and correct all treaty claims. USCIS may flag the inconsistency during green card review.
Most H-1B workers meet the Substantial Presence Test after their first full year in the US and are therefore resident aliens for tax purposes — required to file Form 1040, not 1040-NR. Filing the wrong form creates a chain of errors:
- 1FICA taxes (Social Security + Medicare) were likely not withheld — now owed retroactively with interest
- 2Treaty benefits may have been claimed that you were not eligible for as a resident alien
- 3Deductions available only to residents (standard deduction, IRA, HSA) were missed
- 4An amended return (Form 1040-X) is required for each incorrect year
Yes. H-1B holders who are US tax residents owe taxes on worldwide income — including foreign employer income. You can claim a Foreign Tax Credit to avoid double taxation.
As a US tax resident, you are taxed on your worldwide income regardless of where it was earned or which country paid you. This includes salary from a foreign company deposited into an overseas bank account. However, you are not taxed twice — the IRS allows a Foreign Tax Credit (Form 1116) for taxes already paid to a foreign government.
The year you change from F-1 to H-1B you are a dual-status alien. File Form 1040 as the main return plus a 1040-NR statement for the non-resident period. This is one of the most complex returns in US tax law.
A dual-status year occurs when you change your tax residency status during a calendar year. The IRS requires:
- 1Form 1040 filed as the primary return for the full year
- 2Form 1040-NR attached as a statement (not a separate filing) covering the non-resident period
- 3Income from each period reported on the appropriate section
- 4No standard deduction for the NR period; itemized deductions only for connected income
Yes. Form 8843 must be filed every year you are in F-1, J-1, or certain other visa statuses — even with zero income. It establishes your exempt individual status with the IRS.
Form 8843 is a statement filed to tell the IRS you are an exempt individual — meaning your days in the US do not count toward the Substantial Presence Test. It is not a tax return and has no income to report. But it is legally required every year you are in exempt status, and failure to file it can cause your days to count, making you a resident alien unexpectedly.
Partially. Scholarship money covering tuition and required fees is not taxable for F-1 students. Amounts covering room, board, or living expenses are taxable and must be reported on Form 1040-NR.
The IRS distinguishes between qualified scholarship amounts (tax-free) and non-qualified amounts (taxable):
- ✓Tuition and required enrollment fees — not taxable
- ✓Required course materials included in fees — not taxable
- ✗Room and board allowances — taxable
- ✗Living expense stipends — taxable
- ✗Teaching assistant (TA) or research assistant (RA) wages — taxable as employment income
The 1042-S reports the withholding already applied by your institution. A tax treaty with your home country may further reduce or eliminate the tax owed — but the treaty benefit must be actively claimed on your 1040-NR using Form 8833.
F-1 students in their first 5 years are exempt from FICA taxes. If your employer is withholding Social Security and Medicare from your OPT paycheck, that is an error. You can claim a refund by filing Form 843.
F-1 visa holders in their first 5 calendar years of US presence are exempt from FICA (Social Security at 6.2% and Medicare at 1.45%). Many employers — especially small companies — are unaware of this and incorrectly withhold FICA from OPT employees. You are entitled to a full refund of all incorrectly withheld FICA.
- 1First request the refund from your employer — they can correct it through payroll
- 2If the employer refuses or cannot correct it, file Form 843 with the IRS with your W-2 and proof of visa status
- 3The employer’s matching portion is refunded separately — you only recover the employee share
The failure-to-file penalty is 5% of unpaid taxes per month, capped at 25%. A failure-to-pay penalty of 0.5% per month stacks on top. Across 3 years, penalties and compounding interest can exceed 80% of the original tax owed.
Each unfiled year accumulates penalties independently. Here’s the breakdown per year:
- 1Failure-to-file: 5% per month × 5 months = 25% maximum per year
- 2Failure-to-pay: 0.5% per month, ongoing until paid (no cap)
- 3Interest: Federal short-term rate + 3%, compounded daily on all balances
- 4Multiplied across 3 separate years = significant cumulative exposure
No. An IRS Substitute for Return includes zero deductions on your behalf. Filing your own return — even years late — almost always results in a dramatically lower tax bill and gives you access to payment plans and penalty relief.
A Substitute for Return (SFR) is the IRS’s worst-case assessment. It uses only the income documents they have on file — your W-2s and 1099s — and applies the highest possible tax rate with no deductions. Your actual return can include:
- ✓Standard deduction (single: $13,850 / married: $27,700 for 2023)
- ✓Business expenses if you were self-employed
- ✓Dependent credits, child tax credit, education credits
- ✓Student loan interest, retirement contributions, HSA deductions
You can still file your own return to supersede the SFR — even years after the IRS issued it. Filing your actual return is almost always worth doing.
Yes. Gig workers must file taxes if they earn $400 or more in net self-employment income — regardless of the $10,000 threshold that applies to W-2 employees. Self-employment tax (15.3%) is owed on net earnings above $400.
Delivery drivers for DoorDash, Uber Eats, Instacart, and similar platforms are classified as independent contractors, not employees. This means no taxes are withheld from your earnings and you are responsible for both income tax AND self-employment tax. The $400 filing threshold — not $10,000 — applies to self-employed workers.
- 1Track all mileage driven for deliveries — the IRS standard mileage rate is 67 cents/mile (2024)
- 2Deduct your phone bill (business-use percentage), insulated bags, and other business supplies
- 3Pay estimated quarterly taxes to avoid underpayment penalties (due Jan, Apr, Jun, Sep)
- 4Keep your 1099-NEC or 1099-K from each platform for tax filing
DoorDash reports your earnings to the IRS via 1099-NEC or 1099-K. The IRS has this data. File all back years now with all deductions you qualify for — the longer you wait, the more penalties and interest accumulate.
Gig platforms report every dollar they pay you to the IRS. If you haven’t filed, the IRS has your income on record and may assess a Substitute for Return with zero deductions — meaning you’d owe taxes on gross income with no mileage, phone, or expense deductions taken. Filing your own returns corrects this and can dramatically reduce what you owe.
Yes. All self-employment income is taxable regardless of whether you receive a 1099. The threshold for requiring a 1099 is $600 for the payer — but there is no minimum below which your income is untaxed.
The 1099-NEC is the client’s reporting obligation, not yours. Whether or not your client sends one, you are legally required to report all income you received. The IRS compares income reported on returns against amounts in their database — but even income not reported by anyone is still taxable.
Set aside 25–30% of every freelance payment for taxes. Quarterly estimated payments are due April 15, June 15, September 15, and January 15. Use IRS Form 1040-ES to calculate and pay.
- 1Self-employment tax: 15.3% on net earnings (covers Social Security + Medicare)
- 2Income tax: 10–37% depending on your tax bracket
- 3SE tax deduction: You can deduct half of SE tax as an above-the-line deduction, reducing your income tax
- 4Total effective rate for most freelancers earning $50K–$100K: approximately 26–32%
Yes. Cash income is taxable. Reconstruct income using bank deposit records, text messages with clients, or a reasonable estimate. All self-employment income over $400 net must be reported, with or without records.
The IRS taxes income, not documentation. Cash-paid workers — housekeepers, nannies, landscapers, handymen, hair stylists — owe the same taxes as any other self-employed person. If records are missing, the IRS accepts reasonable reconstructions based on:
- ✓Bank deposit records (cash deposits = income)
- ✓Client text messages, scheduling apps, or invoices you sent
- ✓A reasonable estimate based on your hourly rate × hours worked
- ✓Expense receipts for supplies, transportation, and tools (deductible)
At $15,000 net income, you owe approximately $2,295 in self-employment tax plus income tax based on your bracket. You must file a Schedule C and Schedule SE. Set aside roughly 25–28% of earnings.
Babysitting and childcare income is self-employment income unless you are a household employee (which requires the family to withhold and pay employment taxes — rare in informal arrangements). As a self-employed babysitter at $15,000:
- 1Self-employment tax: $15,000 × 92.35% × 15.3% = approximately $2,120
- 2Deduct half of SE tax (~$1,060) from income before calculating income tax
- 3Apply standard deduction ($14,600 single, 2024) — may reduce income tax to near zero
- 4File Schedule C (profit/loss), Schedule SE (SE tax), and Form 1040
Cryptocurrency is property. Every trade, sale, or crypto-to-crypto exchange is a taxable event. Report gains and losses on Form 8949 and Schedule D. Short-term gains (held under 1 year) are taxed as ordinary income.
- 1Short-term capital gains (held < 1 year): taxed at your ordinary income rate (10–37%)
- 2Long-term capital gains (held ≥ 1 year): taxed at 0%, 15%, or 20% depending on income
- 3Crypto-to-crypto trades (e.g., BTC → ETH): still a taxable event — the gain/loss is calculated at time of trade
- 4Report on Form 8949 (each transaction), summarized on Schedule D
Yes to all three. Staking rewards and airdrops are ordinary income at fair market value when received. NFT sales are capital gains. These must all be reported even if no 1099 was issued.
- ✓Staking rewards: ordinary income at FMV on day received; then capital gain/loss when sold
- ✓Airdrops: ordinary income at FMV when received and you have dominion and control
- ✓NFT sales: capital gains (short or long term based on holding period)
- ✓DeFi yield/interest: ordinary income at FMV when received
Possibly. USCIS reviews tax compliance during I-485 green card applications. Unfiled returns for years you were required to file as a US tax resident can trigger a Request for Evidence or denial. File all back taxes before submitting immigration paperwork.
USCIS does not automatically check IRS records for every application, but immigration officers can and do request tax transcripts during the I-485 review. Red flags include:
- ⚠Unfiled returns for years you held H-1B, L-1, or other resident-status visas
- ⚠IRS tax liens on public record (visible in background checks)
- ⚠Tax residency status on returns inconsistent with visa records
- ⚠Large unpaid balances suggesting willful non-compliance
Yes. The N-400 naturalization application asks whether you have filed your required tax returns. Failure to file when required is considered a failure to uphold good moral character — one of the requirements for US citizenship.
USCIS officers are trained to identify tax non-compliance during naturalization interviews. N-400 Part 12 asks directly whether you have complied with your tax obligations. Officers may request tax transcripts for the past 5 years (the standard lookback period for good moral character). Unfiled returns, large unpaid balances, or willful non-compliance can delay or deny citizenship.