Asked about New York State estimated tax (Form IT-2105) for self-employed individuals.
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General reference only
This Guide is general tax/accounting reference material for AI-assisted workflows. It has not been reviewed for your personal facts, documents, elections, deadlines, residency, filing status, or local procedures. Do not rely on it to file, pay, amend, or take a tax position without review by a qualified professional in the relevant jurisdiction.
Source-cited draft. This Guide is source-cited but has not been reviewed by a licensed practitioner. It may be incomplete, outdated, or wrong.
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Estimated tax filing threshold (state + city + MCTMT after withholding)
>= $300NY Tax Law Section 685
Safe harbour -- current year percentage
90% of current year taxNY Tax Law Section 685
Safe harbour -- prior year percentage (standard)
100% of prior year taxNY Tax Law Section 685
Safe harbour -- prior year percentage (high income)
110% of prior year taxNY Tax Law Section 685
NYAGI threshold triggering 110% prior-year safe harbour
NYAGI > $150,000NY Tax Law Section 685
TY2025 1st instalment due date
April 15, 2025NY Tax Law Section 685; Form IT-2105
TY2025 2nd instalment due date
June 15, 2025NY Tax Law Section 685; Form IT-2105
TY2025 3rd instalment due date
September 15, 2025NY Tax Law Section 685; Form IT-2105
TY2025 4th instalment due date
January 15, 2026NY Tax Law Section 685; Form IT-2105
MCTMT Zone 1 rate (self-employed)
0.60% of NESE > $50,000NY Tax Law Art. 30-A (MCTMT provisions)
MCTMT Zone 2 rate (self-employed)
0.34% of NESE > $50,000NY Tax Law Art. 30-A (MCTMT provisions)
MCTMT NESE exemption threshold
$50,000NY Tax Law Art. 30-A (MCTMT provisions)
MCTMT applicability -- number of MCTD counties
12 countiesNY Tax Law Art. 30-A (MCTMT provisions)
NYC top resident income tax rate
3.876%NYC Admin Code 11-1701
NYC resident income tax rate -- bottom of range
3.078%NYC Admin Code 11-1701
Yonkers resident surcharge rate
16.75% of NY state taxNY Tax Law Art. 30-A (Yonkers)
Yonkers nonresident earnings tax rate
0.5% of Yonkers-source earningsNY Tax Law Art. 30-A (Yonkers)
NY state income tax rate range
4% to 10.9%NY Tax Law Article 22
Each quarterly instalment as share of required annual payment
25% (required annual payment / 4)NY Tax Law Section 685
Required annual payment formula
Lesser of: 90% of current year tax OR 100% of prior year tax (110% if NYAGI > $150,000)NY Tax Law Section 685
Total estimated tax formula
total_estimated = NY_state_tax + NYC_tax + Yonkers_tax + MCTMT; net_estimated = total_estimated - expected_withholding - creditsNY Tax Law Section 685
Underpayment penalty computation form
Form IT-2105.9; rate varies quarterly (set by NYSDTF); applied per-quarter on shortfall from each instalment due dateNY Tax Law Section 685; Form IT-2105.9
Safe harbour protection -- penalty avoidance condition
Payments meet lesser of 90% current year or 100%/110% prior year required annual paymentNY Tax Law Section 685
Estimated tax payment voucher form
IT-2105NY Tax Law Section 685; NYSDTF Form IT-2105
Underpayment penalty form
IT-2105.9NY Tax Law Section 685; NYSDTF Form IT-2105.9
First year of self-employment -- prior year safe harbour amount
$0 (no prior NY return); use 90% current year safe harbourNY Tax Law Section 685
MCTMT reported on annual return -- form lines
Form IT-201, Lines 54a/54bNYSDTF Form IT-201
NYC UBT credit form
IT-219NYC Admin Code 11-1701; NYSDTF Form IT-219
1st instalment identification window
10 April – 20 AprilNY Tax Law Section 685; Form IT-2105
2nd instalment identification window
10 June – 20 JuneNY Tax Law Section 685; Form IT-2105
3rd instalment identification window
10 September – 20 SeptemberNY Tax Law Section 685; Form IT-2105
4th instalment identification window
10 January – 20 JanuaryNY Tax Law Section 685; Form IT-2105
Quick reference table
| Field | Value |
|---|---|
| State | New York |
| Tax | Quarterly estimated income tax (state + NYC + Yonkers + MCTMT) |
| Forms | IT-2105 (voucher), IT-2105.9 (underpayment penalty) |
| Primary legislation | NY Tax Law Section 685 |
| Supporting legislation | NYC Admin Code 11-1701; NY Tax Law Art. 30-A (Yonkers) |
| Authority | New York State Department of Taxation and Finance (NYSDTF) |
| Portal | www.tax.ny.gov |
| Currency | USD only |
| Threshold | Estimated tax (state + city + MCTMT) after withholding >= $300 |
| Safe harbours | 90% current year OR 100%/110% prior year |
| Payment schedule | April 15, June 15, September 15, January 15 |
| Contributor | Open Accountants Community |
| Validated by | April 2026 |
| Validation date | April 2026 |
Payment schedule (TY2025)
| Instalment | Due date |
|---|---|
| 1st | April 15, 2025 |
| 2nd | June 15, 2025 |
| 3rd | September 15, 2025 |
| 4th | January 15, 2026 |
Key rates
| Item | Value |
|---|---|
| MCTMT Zone 1 (self-employed) | 0.60% of NESE > $50,000 |
| MCTMT Zone 2 (self-employed) | 0.34% of NESE > $50,000 |
| NYC top resident rate | 3.876% |
| Yonkers resident surcharge | 16.75% of NY state tax |
| 110% prior-year threshold | NYAGI > $150,000 |
Conservative defaults
| Ambiguity | Default |
|---|---|
| Prior year NYAGI unknown | Assume > $150K, use 110% safe harbour |
| MCTMT zone uncertain | Confirm county of self-employment |
| NYC residency unclear | Do not include NYC tax unless confirmed NYC resident |
| UBT credit available | Include only if taxpayer files NYC UBT return |
| Annualized method | Default to equal instalments; flag annualized option for reviewer |
This is the deterministic pre-classifier for bank statement transactions. When a debit matches a pattern below, classify it as a NY estimated tax payment.
NYSDTF estimated tax debits
| Pattern | Treatment | Notes |
|---|---|---|
| NYS TAX, NY STATE TAX, NYSDTF | NY estimated payment | Match with Apr/Jun/Sep/Jan timing |
| IT-2105, IT2105 | NY estimated payment | Form number reference |
| NEW YORK ESTIMATED TAX | NY estimated payment | Explicit description |
| TAX.NY.GOV PAYMENT | NY estimated payment | Online payment |
Timing-based identification
| Debit date range | Likely instalment | Confidence |
|---|---|---|
| 10 April -- 20 April | 1st instalment | High if NY tax payee |
| 10 June -- 20 June | 2nd instalment | High |
| 10 September -- 20 September | 3rd instalment | High |
| 10 January -- 20 January | 4th instalment | High |
Related but NOT NY estimated tax
| Pattern | Treatment | Notes |
|---|---|---|
| IRS, FEDERAL ESTIMATED | EXCLUDE | Federal estimated tax |
| NYC DOF, NYC PROPERTY | EXCLUDE | NYC property tax |
| NY SALES TAX | EXCLUDE | Sales tax payment |
| NYS PENALTY, NYS INTEREST | EXCLUDE | Penalty/interest |
| IT-201 BALANCE | Flag for reviewer | Annual return balance, not estimated |
Standard NYC freelancer component table
| Component | Amount |
|---|---|
| NY state tax | $6,500 |
| NYC tax | $3,800 |
| MCTMT | $420 |
| Total | $10,720 |
Input: Single NYC resident. NYAGI $120,000. NY tax $6,500. NYC tax $3,800. MCTMT ($120,000 - $50,000) x 0.60% = $420. No withholding.
Required: 90% x $10,720 = $9,648 (or 100% prior if lower). Quarterly: $2,412.
Input: Single. NYAGI $200,000. Current year total $18,000. Prior year $14,000.
Computation: 90% current = $16,200. 110% prior = $15,400. Required = $15,400 (lesser). Quarterly = $3,850.
Input: NYC resident. Estimated tax after withholding = $250.
Output: $250 < $300 threshold. No estimated payments required.
Input: Yonkers resident. NY state tax $5,000. Yonkers surcharge = $5,000 x 16.75% = $837.50.
Output: Include $837.50 in estimated tax total.
Input: Westchester resident (Zone 2). NESE $80,000.
Output: MCTMT = ($80,000 - $50,000) x 0.34% = $102.
Paper vouchers: Form IT-2105 mailed to NYSDTF.
Online: Pay at www.tax.ny.gov (no voucher needed).
Prior year overpayment: Applied to reduce 1st quarter payment. Document on voucher.
NYAGI > $150,000 requires 110% of prior year (not 100%). Mirrors federal rule.
MCTMT is on Form IT-201 (Lines 54a/54b). NOT a separate filing.
IT-219 credit reduces NYC estimated tax. Include when estimating.
Prior year safe harbour = $0. Use 90% current year.
Seasonal freelancer: use IT-2105.9 to reduce early-quarter payments.
Applied to 1st quarter estimated payment.
Before delivering output, verify:
Input: NYAGI $120,000. NY tax $6,500. NYC $3,800. MCTMT $420. No withholding. Expected: Total $10,720. Required 90% = $9,648. Quarterly $2,412.
Input: NYAGI $200,000. Current $18,000. Prior $14,000. Expected: 90% current = $16,200. 110% prior = $15,400. Required = $15,400. Quarterly = $3,850.
Input: Estimated tax after withholding = $250. Expected: No payments required.
Input: NY state tax $5,000. Expected: Yonkers = $837.50. Include in total.
Input: Westchester. NESE $80,000. Expected: MCTMT = $102.
Input: No prior NY return. Expected: Prior year safe harbour = $0. Use 90% current.
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Other New York computations in the OpenAccountants Tax Library.
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