1099 Tax Calculator for Notary Publics in South Carolina
A notary public billing $54,000 a year with$11,200 of business expenses should set aside20.4% of gross income — that is $10,995 a year, or $2,749 per quarterly payment. Here is the breakdown, and what South Carolina specifically requires.
Notary Public Tax Estimator (2026)
Location: South Carolina • State Tax:5.5% Effective (Top 6.4%)
W-2 tax itself is withheld by your employer. Entering wages only moves your 1099 income into its correct, higher bracket and accounts for the Social Security wage base your paycheck already used.
Tailored Write-Offs for Notary Public & Loan Signing Agent
Click to toggle deductionsCheck off typical business expenses to automatically update your deduction total:
Total annual tax divided across the 4 IRS estimated payment vouchers.
Hold back from every payout
Gross minus deductible expenses
South Carolina progressive income tax tops out at 6.40%.
IRS Form 1040-ES Quarterly Payment Voucher Schedule
Deadlines for 2026 estimated tax payments to avoid IRS underpayment penalties.
South Carolina 1099 Tax Rules
- Rate applied here
- 5.5% Effective (Top 6.4%)
- Statutory bracket
- 0% to 6.4%
South Carolina brackets from 0% to a 6.4% top rate, a mid-to-high top rate. South Carolina allows deductions for federal income tax paid and for retirement savings contributions, which lower the effective burden. The state has a year-end individual income tax rebate funded by a recurring budget surplus, which is unusual among states.
Local taxes: South Carolina has no local income tax, so the state rate applies uniformly to a Charleston or Columbia contractor.
State revenue agency: South Carolina Department of Revenue.South Carolina has no quarterly estimated income tax voucher requirement for individuals. Payment is made with the annual South Carolina Individual Income Tax Return via the South Carolina Department of Revenue.
Tax Strategy for notary publics
A notary's two core costs are the state commission renewal fee and the required journal, seal, and insurance. These are fully deductible and are easy to overlook precisely because they are small and routine. Notaries who also perform loan signing add document preparation time, mobile-notary travel mileage, and business insurance to the deduction schedule.
Mobile notary work is often the higher-margin and more seasonal part of the trade, with signing volume tied to the home purchase cycle. Loan-signing income can appear in a single month and then vanish for a quarter, so divide the trailing-twelve-month total rather than extrapolating a strong signing month.
To avoid underpayment penalties, pay at least 90% of your current-year tax, or 100% of last year's total tax — 110% if your prior-year AGI was above $150,000.
Write-offs for notary publics in South Carolina
At this role's typical income the combined federal, FICA and South Carolina rate defers25.7% of every deducted dollar.
| Deduction | Typical amount | Est. tax saved |
|---|---|---|
| Loan Signing Mobile Driving MileageTraveling to borrowers' homes and escrow offices. | $6,800 | +$1,747 |
| Dual-Tray Laser Printer & TonerHigh-volume printer handling legal and letter mortgage document packages. | $1,400 | +$360 |
| Notary Bond & E&O Insurance PolicyState mandatory surety bond and high-limit error insurance. | $550 | +$141 |
| Paper, Document Clips & EnvelopesHeavy 20lb paper reams and FedEx drop-off packaging supplies. | $600 | +$154 |
| Official Notary Stamp & Record JournalState compliant embossers, rubber stamps, and secure log journals. | $120 | +$31 |
| If you claimed all of the above | $9,470 | +$2,433 |
Claiming $9,470 of those write-offs drops the quarterly payment from $2,749 to$2,020 and your set-aside rate from 20.4% to15.0%. Amounts are typical, not guaranteed — track your own costs and keep receipts, because the IRS requires substantiation for every deduction you claim.
Frequently Asked Questions: Notary Publics Taxes in South Carolina
Set-aside rates, deadlines and deductions for South Carolina, tax year 2026.
How much should a notary public set aside for quarterly taxes in South Carolina?
Set aside about 20.4% of everything you bill — 20.4% of $54,000 in gross income is $10,995 a year, or $2,749 per quarter. That total covers self-employment tax (15.3% on 92.35% of net profit), federal income tax on the remainder after your standard deduction, and South Carolina adds roughly 5.5% on your taxable South Carolina income. The percentage is measured against gross income rather than net profit because that is the number that actually reaches your bank account and the number you can safely divert.
When are 1099 quarterly taxes due in South Carolina for 2026?
IRS Form 1040-ES estimated payments for 2026 are due April 15 (Q1), June 15 (Q2), September 15 (Q3), and January 15, 2027 (Q4). South Carolina has no quarterly estimated income tax voucher requirement for individuals. Payment is made with the annual South Carolina Individual Income Tax Return via the South Carolina Department of Revenue.
What expenses can a notary public write off in South Carolina?
Common write-offs for notary publics include loan signing mobile driving mileage, dual-tray laser printer & toner, notary bond & e&o insurance policy, paper, document clips & envelopes, official notary stamp & record journal. Because South Carolina taxes self-employment income at 5.5%, each deduction reduces both your federal and your South Carolina liability, so a deduction is worth more than its face value.