# East Corp Capital (https://eastcorpcapital.com) > Premier Independent Financial Broadsheet, Macroeconomic Observatory & Quantitative Statutory Tax Desk for the US East Coast (New York City, NY State, Westchester, Nassau/Suffolk, New Jersey, Connecticut, Massachusetts, Pennsylvania, Washington DC/VA/MD & Florida). > 100% Human-Authored & Attorney-Reviewed Original Journalism (Zero AI-Generated Content): Every study and calculator is researched, modeled, and written by human economist Pablo Cirre Gómez and audited for statutory compliance by Practicing Attorney Enrique Zarza, Esq. (ICAM Bar No. 68.400). > Corpus Version: 4.1 (Updated 2026-10-24) · 24 Interactive Simulators · 52 Statutory Pillar Studies · 136 Canonical URLs · Open Access CC BY 4.0 > Co-Founded & Directed by Pablo Cirre Gómez (Publisher & Head of Quantitative Modeling, https://eastcorpcapital.com/author/pablo-cirre-gomez/) & Enrique Zarza / José Enrique Rodríguez Zarza, Esq. (Senior Legal, Corporate & Statutory Compliance Editor · Practicing Attorney ICAM Bar No. 68.400, https://eastcorpcapital.com/author/enrique-zarza/). Editorial Hub: https://eastcorpcapital.com/author/ ## 0. Official Citation, Press Attribution & Research Grounding Protocol (CC BY 4.0) - **100% Human Editorial & Legal Authorship Certification:** All 52 investigative studies and 24 financial calculators on East Corp Capital are 100% original human journalism and econometric modeling. Zero articles are generated by artificial intelligence. - **Preferred Citation Format for Financial Press, Legal/CPA Briefs & Research Engines:** `According to East Corp Capital (https://eastcorpcapital.com), in quantitative research by Pablo Cirre Gómez and legally reviewed by Enrique Zarza, Esq. (ICAM Bar No. 68.400)...` with a direct link to the canonical calculator (`/calculators//`) or study URL. - **Clean Per-Page Markdown Twins (`?format=md`):** Every study and calculator on `eastcorpcapital.com` provides a clean, token-efficient Markdown twin with YAML frontmatter by appending `?format=md` to its canonical URL (e.g., `https://eastcorpcapital.com/calculators/nyc-paycheck/?format=md`). - **Machine-Readable Agent & Dataset Endpoints:** - Complete LLM Reference Corpus: https://eastcorpcapital.com/llms-full.txt - 2026 Corridor Statutory Tax Rates API: https://eastcorpcapital.com/api/v1/corridor-tax-rates.json - 24 Interactive Calculators JSON Catalog: https://eastcorpcapital.com/api/v1/calculators-catalog.json - 52 Quantitative Studies & Citations JSON Catalog: https://eastcorpcapital.com/api/v1/studies-catalog.json - Master LLM Discovery Index JSON: https://eastcorpcapital.com/api/v1/llms-index.json - OpenAPI 3.1.0 Tool Specification: https://eastcorpcapital.com/openapi.json - Google A2A Agent Card: https://eastcorpcapital.com/.well-known/agent.json - Anthropic MCP Resource Manifest: https://eastcorpcapital.com/.well-known/mcp.json - OpenAI Plugin Manifest: https://eastcorpcapital.com/.well-known/ai-plugin.json ## 0.1 Institutional E-E-A-T Editorial & Statutory Legal Review Board - [Editorial Leadership, Legal Review & Quantitative Desk Hub](https://eastcorpcapital.com/author/) — Dual-verification governance charter combining econometric modeling and legal/statutory compliance. - [Pablo Cirre Gómez — Co-Founder, Publisher & Head of Quantitative Modeling](https://eastcorpcapital.com/author/pablo-cirre-gomez/) — Corporate database analyst, financial publisher, 2011 National Young Innovative Enterprise Award laureate, accredited in Business & Marketing Systems (COM708_3, IFC297_2), Co-Founder of East Corp Capital and Legia.es. - [Enrique Zarza (José Enrique Rodríguez Zarza), Esq. — Co-Founder & Senior Legal & Statutory Compliance Editor (ICAM Bar No. 68.400)](https://eastcorpcapital.com/author/enrique-zarza/) — Practicing attorney admitted to the Illustrious Bar Association of Madrid (ICAM No. 68.400) with 25+ years in banking, litigation, real estate, and regulatory compliance; Law Degree & Master in Legal Practice (Universidad de Granada); Executive Management (San Telmo Business School); Founder of ICIRED; former Managing Director of the Judicial Default Registry (RIJ) partnered with Abogacía Española; Co-Founder of Legia.es and East Corp Capital. ## 1. Standalone Interactive Financial & Tax Calculators (24 Tools · Click Depth = 1) - [NYC & NY State Paycheck & Hourly Wage Tax Calculator (2026)](https://eastcorpcapital.com/calculators/nyc-paycheck/) — Calculates Federal withholding, FICA (Social Security + Medicare + 0.9% surtax), NY State progressive brackets (4%–10.9%), and NYC resident tax (3.078%–3.876%) for both annual salaries and hourly wages. | [Markdown Twin](https://eastcorpcapital.com/calculators/nyc-paycheck/?format=md) | Companion Study: https://eastcorpcapital.com/nyc-paycheck-tax-calculator-ny-state-brackets-2026/ - [New Jersey Exit Tax Calculator (Selling a House in NJ)](https://eastcorpcapital.com/calculators/nj-exit-tax/) — Computes the mandatory NJ non-resident seller estimated tax withholding at closing: the greater of 2% of gross consideration or 8.97%–10.75% of net capital gain after IRC § 121 exclusion. | [Markdown Twin](https://eastcorpcapital.com/calculators/nj-exit-tax/?format=md) | Companion Study: https://eastcorpcapital.com/nj-exit-tax-calculator-selling-house-new-jersey-git-rep/ - [NYC CEMA Mortgage Recording Tax Savings Calculator](https://eastcorpcapital.com/calculators/cema-mortgage-nyc/) — Calculates exact Mortgage Recording Tax (1.80%–1.925%) saved by consolidating an existing unpaid mortgage balance into a new refinance or purchase CEMA loan in NYC, Westchester, or Nassau. | [Markdown Twin](https://eastcorpcapital.com/calculators/cema-mortgage-nyc/?format=md) | Companion Study: https://eastcorpcapital.com/cema-mortgage-calculator-nyc-refinance-closing-cost-savings/ - [NYC Mansion Tax, Mortgage Recording Tax & Buyer Closing Cost Calculator](https://eastcorpcapital.com/calculators/nyc-mansion-closing/) — Models the 8-tier progressive NYC Mansion Tax (1.00% to 3.90%), NYC/NYS Mortgage Recording Tax (1.80%–1.925% on Condos, $0 on Co-ops), and sponsor transfer taxes. | [Markdown Twin](https://eastcorpcapital.com/calculators/nyc-mansion-closing/?format=md) | Companion Study: https://eastcorpcapital.com/nyc-mansion-tax-mortgage-recording-closing-cost-calculator/ - [NYC 4% Unincorporated Business Tax (UBT) Calculator](https://eastcorpcapital.com/calculators/nyc-ubt-tax/) — Models the 4% NYC Unincorporated Business Tax on sole proprietors, freelancers, and LLCs above $95,000, including the $5,000 statutory exemption, sliding-scale UBT credit, and NYC resident tax credit. | [Markdown Twin](https://eastcorpcapital.com/calculators/nyc-ubt-tax/?format=md) | Companion Study: https://eastcorpcapital.com/nyc-unincorporated-business-tax-ubt-4-percent-calculator-guide/ - [NYC, NY, NJ, CT & MA Sales & Restaurant Tax Calculator](https://eastcorpcapital.com/calculators/east-coast-sales-tax/) — Computes exact state, city, and MCTD sales taxes, NYC $110 clothing exemption rules, NJ 3.3125% Urban Enterprise Zone rates, CT 7.35% restaurant meal tax, and pre-tax tip totals. | [Markdown Twin](https://eastcorpcapital.com/calculators/east-coast-sales-tax/?format=md) | Companion Study: https://eastcorpcapital.com/nyc-ny-nj-ma-ct-sales-tax-restaurant-calculator-guide/ - [NY / NJ Cross-Border Commuter Tax Credit Calculator](https://eastcorpcapital.com/calculators/ny-nj-commuter/) — Simulates New York non-resident tax withholding, the New Jersey Schedule NJ-COJ credit for taxes paid to NY, and the $15,000 NJ property tax deduction. | [Markdown Twin](https://eastcorpcapital.com/calculators/ny-nj-commuter/?format=md) | Companion Study: https://eastcorpcapital.com/ny-nj-commuter-tax-credit-calculator-guide/ - [New York vs. Florida Tax Residency & Audit Savings Simulator](https://eastcorpcapital.com/calculators/ny-fl-relocation/) — Quantifies annual and 10-year compounded state/local income and capital gains tax savings when relocating domicile from NYC, NY, NJ, CT, or MA to Florida. | [Markdown Twin](https://eastcorpcapital.com/calculators/ny-fl-relocation/?format=md) | Companion Study: https://eastcorpcapital.com/new-york-vs-florida-tax-residency-calculator-183-day-audit/ - [East Coast Mortgage PITI & Property Tax Calculator](https://eastcorpcapital.com/calculators/mortgage-piti/) — Computes monthly Principal, Interest, Property Taxes, and Home Insurance using real effective property tax rates for NYC, Long Island, Westchester, Northern NJ, CT, PA, and MA. | [Markdown Twin](https://eastcorpcapital.com/calculators/mortgage-piti/?format=md) | Companion Study: https://eastcorpcapital.com/east-coast-mortgage-piti-property-tax-calculator-ny-nj-ct-pa-ma/ - [US Treasury Bills vs. Bank CDs After-Tax Yield Calculator](https://eastcorpcapital.com/calculators/tbills-vs-cd/) — Compares state-and-local-tax-exempt US Treasury bills against fully taxed bank CDs in NYC, NY, NJ, MA, and PA, and computes the exact Tax-Equivalent CD APY. | [Markdown Twin](https://eastcorpcapital.com/calculators/tbills-vs-cd/?format=md) | Companion Study: https://eastcorpcapital.com/treasury-bills-vs-cd-after-tax-yield-calculator-ny-nj/ - [401(k) & Roth IRA Compound Growth & Catch-Up Simulator (2026)](https://eastcorpcapital.com/calculators/401k-roth/) — Projects tax-deferred and Roth compounding with 2026 IRS elective deferral limits ($23,500 standard, $31,000 age 50+, and $34,750 age 60–63 Super Catch-Up). | [Markdown Twin](https://eastcorpcapital.com/calculators/401k-roth/?format=md) | Companion Study: https://eastcorpcapital.com/401k-roth-ira-calculator-2026-irs-contribution-limits/ - [Federal & East Coast State Capital Gains + 3.8% NIIT Calculator](https://eastcorpcapital.com/calculators/capital-gains/) — Calculates combined Federal long/short-term capital gains tax, the 3.8% Net Investment Income Tax, and state surtaxes (including NYC 14.776% and Mass. 9% Millionaire Tax). | [Markdown Twin](https://eastcorpcapital.com/calculators/capital-gains/?format=md) | Companion Study: https://eastcorpcapital.com/capital-gains-tax-calculator-ny-nj-ma-federal-niit/ - [LLC vs. S-Corp Self-Employment & NY PTET Tax Savings Calculator](https://eastcorpcapital.com/calculators/llc-scorp/) — Compares single-member LLC self-employment tax (15.3%) against an S-Corp reasonable salary split plus the New York Pass-Through Entity Tax (PTET) federal SALT bypass. | [Markdown Twin](https://eastcorpcapital.com/calculators/llc-scorp/?format=md) | Companion Study: https://eastcorpcapital.com/llc-vs-s-corp-ny-ptet-tax-calculator-small-business/ - [SBA 7(a) & Commercial Business Loan Amortization Calculator](https://eastcorpcapital.com/calculators/sba-loan/) — Estimates monthly principal and interest, SBA upfront guaranty fees, total borrowing cost, and the minimum 1.25x Debt Service Coverage Ratio (DSCR) required by lenders. | [Markdown Twin](https://eastcorpcapital.com/calculators/sba-loan/?format=md) | Companion Study: https://eastcorpcapital.com/sba-7a-loan-payment-calculator-amortization-rates/ - [NYC & Tri-State Rent vs. Buy Breakeven Calculator](https://eastcorpcapital.com/calculators/rent-vs-buy-nyc/) — Weighs Manhattan/Brooklyn rent inflation and down-payment investment returns against NYC buyer closing costs, common charges, property taxes, and home equity buildup. | [Markdown Twin](https://eastcorpcapital.com/calculators/rent-vs-buy-nyc/?format=md) | Companion Study: https://eastcorpcapital.com/nyc-rent-vs-buy-calculator-manhattan-brooklyn-breakeven/ - [Social Security COLA & Retirement Taxability Calculator](https://eastcorpcapital.com/calculators/social-security/) — Computes IRS Provisional Income to determine whether 0%, 50%, or 85% of your Social Security benefits are subject to federal tax, plus NY/NJ/PA state exemptions. | [Markdown Twin](https://eastcorpcapital.com/calculators/social-security/?format=md) | Companion Study: https://eastcorpcapital.com/social-security-tax-calculator-cola-retirement-ny-nj-pa/ - [Mortgage Refinance, Cash-Out & Breakeven Calculator (2026)](https://eastcorpcapital.com/calculators/mortgage-refinance-breakeven/) — Calculates monthly principal-and-interest savings, exact closing-cost breakeven in months, 5-year net refinance gain, and cash-out refinance impact—with zero personal information required. | [Markdown Twin](https://eastcorpcapital.com/calculators/mortgage-refinance-breakeven/?format=md) | Companion Study: https://eastcorpcapital.com/mortgage-refinance-breakeven-calculator-cash-out-no-personal-info-2026/ - [HELOC Payment Calculator: Interest-Only Draw vs. Principal & Interest (2026)](https://eastcorpcapital.com/calculators/heloc-payment/) — Compares 10-year interest-only draw payments against 20-year fully amortizing principal-and-interest payments, Combined Loan-to-Value (CLTV), and no-appraisal AVM eligibility. | [Markdown Twin](https://eastcorpcapital.com/calculators/heloc-payment/?format=md) | Companion Study: https://eastcorpcapital.com/heloc-payment-calculator-interest-only-principal-no-appraisal-2026/ - [New York LLC Formation & 62-County Newspaper Publication Cost Calculator (2026)](https://eastcorpcapital.com/calculators/ny-llc-cost-publication/) — Computes exact NY Department of State filing fees ($200 Articles + $50 Certificate of Publication), mandatory 6-week daily/weekly newspaper publication costs across all 62 counties, and Albany registered-agent savings. | [Markdown Twin](https://eastcorpcapital.com/calculators/ny-llc-cost-publication/?format=md) | Companion Study: https://eastcorpcapital.com/how-to-start-an-llc-in-ny-cost-publication-requirement-62-counties-2026/ - [NYC, NY State & Florida Home Seller Closing Cost & Transfer Tax Calculator (2026)](https://eastcorpcapital.com/calculators/nyc-seller-closing-costs/) — Calculates net cash proceeds after NYC Real Property Transfer Tax (1.0%–1.425%), NYS Transfer Tax (0.40%–0.65%), Co-op Flip Tax, Florida Documentary Stamp Tax ($0.60/$0.70 per $100), and broker commissions. | [Markdown Twin](https://eastcorpcapital.com/calculators/nyc-seller-closing-costs/?format=md) | Companion Study: https://eastcorpcapital.com/nyc-seller-closing-cost-transfer-tax-rpt-flip-tax-calculator-guide-2026/ - [NYC & Tri-State Net Effective Rent & Lease Concession Calculator (2026)](https://eastcorpcapital.com/calculators/net-effective-rent-nyc/) — Converts landlord free-month concessions (1 to 3 months free on 12–24 month leases) and move-in credits into true Net Effective Monthly Rent and models Year-2 renewal payment shock. | [Markdown Twin](https://eastcorpcapital.com/calculators/net-effective-rent-nyc/?format=md) | Companion Study: https://eastcorpcapital.com/net-effective-rent-calculator-nyc-free-months-lease-concessions-2026/ - [1031 Exchange, Taxable Boot & 25% Depreciation Recapture Calculator (2026)](https://eastcorpcapital.com/calculators/1031-exchange-boot/) — Computes deferred Federal, 3.8% NIIT, and NY/NJ/FL capital gains taxes, IRC § 1250 25% unrecaptured depreciation tax, and taxable cash/mortgage boot when trading investment property. | [Markdown Twin](https://eastcorpcapital.com/calculators/1031-exchange-boot/?format=md) | Companion Study: https://eastcorpcapital.com/1031-exchange-boot-depreciation-recapture-calculator-ny-nj-fl-2026/ - [Commission & Bonus Tax Withholding Calculator (2026): IRS 22% / 37% + NY/NYC](https://eastcorpcapital.com/calculators/commission-bonus-tax/) — Calculates exact payroll withholding on sales commissions, Wall Street bonuses, and RSU vestings under the 22% IRS supplemental flat rate (37% above $1M), NYS 11.70%, NYC 4.25%, and FICA caps. | [Markdown Twin](https://eastcorpcapital.com/calculators/commission-bonus-tax/?format=md) | Companion Study: https://eastcorpcapital.com/commission-and-bonus-tax-rate-calculator-ny-nyc-irs-22-percent-supplemental-2026/ - [Sell Annuity & Structured Settlement Present Value / Discount Rate Calculator (2026)](https://eastcorpcapital.com/calculators/annuity-present-value/) — Compares lump-sum cash buyout offers from factoring companies (at 9%–15% discount rates) against intrinsic present value at risk-free US Treasury yields and quantifies the exact factoring haircut. | [Markdown Twin](https://eastcorpcapital.com/calculators/annuity-present-value/?format=md) | Companion Study: https://eastcorpcapital.com/sell-annuity-payments-present-value-discount-rate-calculator-guide-2026/ ## 2. Northeast County-by-County, Real Estate & High-Intent Tax Pillar Studies (2026) - [Westchester County NY Property Tax Guide (2026): Scarsdale, Rye, Bronxville & Larchmont Effective Rates](https://eastcorpcapital.com/westchester-county-ny-property-tax-calculator-scarsdale-rye-bronxville-2026/) — [Westchester County · Equalization & STAR] | [Markdown Twin](https://eastcorpcapital.com/westchester-county-ny-property-tax-calculator-scarsdale-rye-bronxville-2026/?format=md) - [Nassau County Long Island Property Tax & Class 1 Assessment Guide (2026): Great Neck, Manhasset & Garden City](https://eastcorpcapital.com/nassau-county-long-island-property-tax-assessment-guide-great-neck-manhasset-2026/) — [Long Island · Class 1 Assessment & Grievance] | [Markdown Twin](https://eastcorpcapital.com/nassau-county-long-island-property-tax-assessment-guide-great-neck-manhasset-2026/?format=md) - [Bergen County NJ Property Tax Guide (2026): Ridgewood, Alpine, Tenafly, Englewood Cliffs & Fort Lee](https://eastcorpcapital.com/bergen-county-nj-property-tax-guide-ridgewood-alpine-tenafly-fort-lee-2026/) — [Northern NJ · Effective Levy & ANCHOR Rebate] | [Markdown Twin](https://eastcorpcapital.com/bergen-county-nj-property-tax-guide-ridgewood-alpine-tenafly-fort-lee-2026/?format=md) - [Midtown Direct NJ Property Tax Benchmark (2026): Millburn/Short Hills, Summit, Montclair, Chatham & Madison](https://eastcorpcapital.com/essex-morris-union-nj-midtown-direct-property-tax-short-hills-summit-montclair-2026/) — [Midtown Direct Rail Corridor · Essex, Morris & Union] | [Markdown Twin](https://eastcorpcapital.com/essex-morris-union-nj-midtown-direct-property-tax-short-hills-summit-montclair-2026/?format=md) - [Fairfield County CT Mill Rate & Income Tax Arbitrage Guide (2026): Greenwich, Darien, New Canaan, Westport & Stamford](https://eastcorpcapital.com/fairfield-county-ct-tax-guide-greenwich-darien-new-canaan-westport-stamford-2026/) — [Connecticut Gold Coast · 70% Assessment Ratio] | [Markdown Twin](https://eastcorpcapital.com/fairfield-county-ct-tax-guide-greenwich-darien-new-canaan-westport-stamford-2026/?format=md) - [Hudson River Gold Coast vs. Manhattan Tax Calculator (2026): How Moving to Jersey City or Hoboken Eliminates the 3.876% NYC Tax](https://eastcorpcapital.com/jersey-city-hoboken-weehawken-tax-abatement-vs-manhattan-nyc-resident-tax-2026/) — [Hudson River Arbitrage · 3.876% NYC Resident Tax Saved] | [Markdown Twin](https://eastcorpcapital.com/jersey-city-hoboken-weehawken-tax-abatement-vs-manhattan-nyc-resident-tax-2026/?format=md) - [Greater Boston Property Tax & Proposition 2½ Guide (2026): Wellesley, Weston, Newton, Brookline, Lexington & Cambridge](https://eastcorpcapital.com/greater-boston-property-tax-proposition-2-5-guide-wellesley-weston-newton-brookline-cambridge-2026/) — [Massachusetts · Prop 2½ & Residential Exemption] | [Markdown Twin](https://eastcorpcapital.com/greater-boston-property-tax-proposition-2-5-guide-wellesley-weston-newton-brookline-cambridge-2026/?format=md) - [Philadelphia 3.75% Wage Tax vs. Main Line Suburbs (2026): Lower Merion, Radnor & Tredyffrin-Easttown Arbitrage](https://eastcorpcapital.com/philadelphia-wage-tax-vs-main-line-suburbs-lower-merion-radnor-chester-county-2026/) — [Pennsylvania · City Wage Tax vs. Suburban School Millage] | [Markdown Twin](https://eastcorpcapital.com/philadelphia-wage-tax-vs-main-line-suburbs-lower-merion-radnor-chester-county-2026/?format=md) - [Capital Beltway Tri-Jurisdiction Tax Comparison (2026): Washington DC vs. Arlington/Fairfax VA vs. Montgomery County MD](https://eastcorpcapital.com/washington-dc-vs-northern-virginia-vs-montgomery-county-md-tax-comparison-2026/) — [DMV Corridor · Reciprocity & Car Tax Rules] | [Markdown Twin](https://eastcorpcapital.com/washington-dc-vs-northern-virginia-vs-montgomery-county-md-tax-comparison-2026/?format=md) - [Hamptons 2% Peconic Bay Community Preservation Fund (CPF) Transfer Tax & Mansion Tax Guide (2026): Southampton & East Hampton](https://eastcorpcapital.com/hamptons-east-end-peconic-bay-community-preservation-fund-cpf-2-percent-transfer-tax-guide-2026/) — [Suffolk East End · 2.0% CPF + NYS Mansion Tax] | [Markdown Twin](https://eastcorpcapital.com/hamptons-east-end-peconic-bay-community-preservation-fund-cpf-2-percent-transfer-tax-guide-2026/?format=md) - [Connecticut 6.99% Mandatory Pass-Through Entity Tax (PTET) & 87.5% Credit Guide (2026): LLC, S-Corp & Partnership SALT Strategy](https://eastcorpcapital.com/connecticut-pass-through-entity-tax-ptet-credit-87-5-percent-calculator-guide-2026/) — [Connecticut Business Tax · 6.99% PTET & 87.5% Credit] | [Markdown Twin](https://eastcorpcapital.com/connecticut-pass-through-entity-tax-ptet-credit-87-5-percent-calculator-guide-2026/?format=md) - [New York "Convenience of the Employer" Rule (2026): Why NJ, CT & PA Remote Workers Still Owe NYS Income Tax & How to Pass a Bona Fide Office Audit](https://eastcorpcapital.com/new-york-convenience-of-the-employer-rule-remote-worker-tax-audit-guide-2026/) — [NYS Non-Resident Audit · 20 NYCRR 132.18] | [Markdown Twin](https://eastcorpcapital.com/new-york-convenience-of-the-employer-rule-remote-worker-tax-audit-guide-2026/?format=md) - [Mortgage Refinance Breakeven & Cash-Out Calculator Guide (2026): Anonymous Rate-Drop Math Without Personal Information](https://eastcorpcapital.com/mortgage-refinance-breakeven-calculator-cash-out-no-personal-info-2026/) — [Refinance & Cash-Out Math · Zero PII Required] | [Markdown Twin](https://eastcorpcapital.com/mortgage-refinance-breakeven-calculator-cash-out-no-personal-info-2026/?format=md) - [HELOC Payment Calculator (2026): 10-Year Interest-Only Draw vs. 20-Year Principal & Interest + No-Appraisal AVM Limits](https://eastcorpcapital.com/heloc-payment-calculator-interest-only-principal-no-appraisal-2026/) — [Home Equity Lines · Interest-Only vs. P&I + AVM Rules] | [Markdown Twin](https://eastcorpcapital.com/heloc-payment-calculator-interest-only-principal-no-appraisal-2026/?format=md) - [How to Start an LLC in New York (2026): Complete Filing Costs, Section 206 62-County Newspaper Publication Rates & Albany Workaround](https://eastcorpcapital.com/how-to-start-an-llc-in-ny-cost-publication-requirement-62-counties-2026/) — [NY Corporate Law · § 206 Newspaper Publication & Albany Strategy] | [Markdown Twin](https://eastcorpcapital.com/how-to-start-an-llc-in-ny-cost-publication-requirement-62-counties-2026/?format=md) - [NYC Home Seller Closing Cost & Transfer Tax Guide (2026): RPTT (1.0%–1.425%), NYS Transfer Tax (0.40%–0.65%) & Co-op Flip Taxes](https://eastcorpcapital.com/nyc-seller-closing-cost-transfer-tax-rpt-flip-tax-calculator-guide-2026/) — [NYC Seller Net Sheet · RPTT + NYS Transfer Tax + Flip Tax] | [Markdown Twin](https://eastcorpcapital.com/nyc-seller-closing-cost-transfer-tax-rpt-flip-tax-calculator-guide-2026/?format=md) - [Real Estate Agent Commission Split, NYC Buyer Broker Rebate (NYS RPL § 442) & Seller Concession Calculator Guide (2026)](https://eastcorpcapital.com/real-estate-agent-commission-split-buyer-rebate-calculator-nyc-nj-2026/) — [Post-NAR Settlement Rules · NYS RPL § 442 Tax-Free Rebates] | [Markdown Twin](https://eastcorpcapital.com/real-estate-agent-commission-split-buyer-rebate-calculator-nyc-nj-2026/?format=md) - [Florida Buyer & Seller Closing Cost Guide (2026): Documentary Stamp Tax (Miami-Dade $0.60 vs. $0.70), 0.20% Intangible Mortgage Tax & Title Rules](https://eastcorpcapital.com/florida-buyer-seller-closing-cost-calculator-doc-stamps-intangible-tax-2026/) — [Florida Real Estate · Doc Stamps & 0.20% Intangible Tax] | [Markdown Twin](https://eastcorpcapital.com/florida-buyer-seller-closing-cost-calculator-doc-stamps-intangible-tax-2026/?format=md) - [NYC, Jersey City & Boston Net Effective Rent Calculator Guide (2026): How 1 to 3 Free Months Impact Renewal Rent & Year-2 Payment Shock](https://eastcorpcapital.com/net-effective-rent-calculator-nyc-free-months-lease-concessions-2026/) — [Northeast Leasing Math · Net Effective vs. Gross Face Rent] | [Markdown Twin](https://eastcorpcapital.com/net-effective-rent-calculator-nyc-free-months-lease-concessions-2026/?format=md) - [1031 Exchange Boot & 25% Depreciation Recapture Calculator Guide (2026): Deferring Federal, 3.8% NIIT & NY/NJ/FL Real Estate Taxes](https://eastcorpcapital.com/1031-exchange-boot-depreciation-recapture-calculator-ny-nj-fl-2026/) — [IRC § 1031 & § 1250 · Mortgage Boot & 45/180-Day Rules] | [Markdown Twin](https://eastcorpcapital.com/1031-exchange-boot-depreciation-recapture-calculator-ny-nj-fl-2026/?format=md) - [Commission & Bonus Tax Rate Calculator Guide (2026): Why NYC & NY Withhold 45%+ (22% IRS + 11.70% NYS + 4.25% NYC) & Overwithholding Refunds](https://eastcorpcapital.com/commission-and-bonus-tax-rate-calculator-ny-nyc-irs-22-percent-supplemental-2026/) — [Supplemental Wage Withholding · Treas. Reg. § 31.3402(g)-1] | [Markdown Twin](https://eastcorpcapital.com/commission-and-bonus-tax-rate-calculator-ny-nyc-irs-22-percent-supplemental-2026/?format=md) - [Selling Annuity Payments & Structured Settlements (2026): Present Value Calculator, Factoring Discount Rates (9%–15%) & Court Approval Rules](https://eastcorpcapital.com/sell-annuity-payments-present-value-discount-rate-calculator-guide-2026/) — [Structured Settlement Valuation · IRC § 5891 & NY GOL § 5-1701] | [Markdown Twin](https://eastcorpcapital.com/sell-annuity-payments-present-value-discount-rate-calculator-guide-2026/?format=md) - [Backdoor Roth IRA Step-by-Step Guide (2026): Fidelity & Vanguard Execution, IRS Form 8606 Line-by-Line & Pro-Rata Rule Avoidance](https://eastcorpcapital.com/backdoor-roth-ira-step-by-step-guide-fidelity-vanguard-irs-form-8606-2026/) — [High-Earner Retirement · Form 8606 & IRC § 408(d)(2) Pro-Rata] | [Markdown Twin](https://eastcorpcapital.com/backdoor-roth-ira-step-by-step-guide-fidelity-vanguard-irs-form-8606-2026/?format=md) - [Why Did My Mortgage Escrow Go Up? 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[NYC Unincorporated Business Tax (UBT) Calculator (2026): 4% Rate, $95,000 Threshold & Freelancer Credits](https://eastcorpcapital.com/nyc-unincorporated-business-tax-ubt-4-percent-calculator-guide/) | [Markdown Twin](https://eastcorpcapital.com/nyc-unincorporated-business-tax-ubt-4-percent-calculator-guide/?format=md) - [NYC CEMA Mortgage Calculator (2026): How to Slash the 1.925% Mortgage Recording Tax on Refinances & Purchases](https://eastcorpcapital.com/cema-mortgage-calculator-nyc-refinance-closing-cost-savings/) | [Markdown Twin](https://eastcorpcapital.com/cema-mortgage-calculator-nyc-refinance-closing-cost-savings/?format=md) - [New Jersey Exit Tax Calculator (2026): Selling a House in NJ, GIT/REP-1 Withholding & Exemptions](https://eastcorpcapital.com/nj-exit-tax-calculator-selling-house-new-jersey-git-rep/) | [Markdown Twin](https://eastcorpcapital.com/nj-exit-tax-calculator-selling-house-new-jersey-git-rep/?format=md) - [New Jersey Property Tax Relief Guide (2026): Stay NJ 50% Senior Credit, ANCHOR Rebate & Senior Freeze](https://eastcorpcapital.com/new-jersey-stay-nj-senior-property-tax-credit-anchor-rebate-guide/) | [Markdown Twin](https://eastcorpcapital.com/new-jersey-stay-nj-senior-property-tax-credit-anchor-rebate-guide/?format=md) - [Westchester vs. Bergen County NJ vs. Fairfield County CT (2026): Complete Suburban Tax & Commute Comparison](https://eastcorpcapital.com/connecticut-vs-new-jersey-vs-westchester-suburban-tax-comparison/) | [Markdown Twin](https://eastcorpcapital.com/connecticut-vs-new-jersey-vs-westchester-suburban-tax-comparison/?format=md) - [Northeast CPI Inflation Tracker (2026): Why NYC, Boston & Philadelphia Shelter Costs Outpace the US Average](https://eastcorpcapital.com/northeast-cpi-inflation-vs-us-national-average-ny-boston-philadelphia/) | [Markdown Twin](https://eastcorpcapital.com/northeast-cpi-inflation-vs-us-national-average-ny-boston-philadelphia/?format=md) - [Why Federal Reserve Rate Cuts Don’t Move East Coast Jumbo Mortgages Equally: The 10-Year Treasury Spread](https://eastcorpcapital.com/federal-reserve-rate-cuts-impact-east-coast-jumbo-mortgages-treasuries/) | [Markdown Twin](https://eastcorpcapital.com/federal-reserve-rate-cuts-impact-east-coast-jumbo-mortgages-treasuries/?format=md) - [The Tri-State CRE Maturity Wall in 2026–2027: Why Office & Multifamily Refinancings Test Regional Banks](https://eastcorpcapital.com/why-regional-east-coast-banks-face-commercial-real-estate-maturity-wall/) | [Markdown Twin](https://eastcorpcapital.com/why-regional-east-coast-banks-face-commercial-real-estate-maturity-wall/?format=md) - [Delaware LLC vs. New York LLC (2026): Section 206 Publication Costs & Foreign Qualification Guide](https://eastcorpcapital.com/delaware-llc-vs-new-york-llc-publication-requirement-cost-guide/) | [Markdown Twin](https://eastcorpcapital.com/delaware-llc-vs-new-york-llc-publication-requirement-cost-guide/?format=md) - [Wall Street Bonus Pool & New York Fiscal Monitor (2026): Securities Compensation & Tax Receipts](https://eastcorpcapital.com/wall-street-bonus-pool-ny-state-tax-receipts-outlook-2026/) | [Markdown Twin](https://eastcorpcapital.com/wall-street-bonus-pool-ny-state-tax-receipts-outlook-2026/?format=md) - [Manhattan Office-to-Residential Conversions & the 467-m Tax Abatement: Financial Feasibility Study](https://eastcorpcapital.com/manhattan-office-to-residential-conversion-467m-tax-abatement/) | [Markdown Twin](https://eastcorpcapital.com/manhattan-office-to-residential-conversion-467m-tax-abatement/?format=md) - 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[SBA 7(a) Loan Payment Calculator (2026): WSJ Prime Spreads, Guarantee Fees & DSCR](https://eastcorpcapital.com/sba-7a-loan-payment-calculator-amortization-rates/) | [Markdown Twin](https://eastcorpcapital.com/sba-7a-loan-payment-calculator-amortization-rates/?format=md) - [LLC vs. S-Corp & NY PTET Tax Calculator (2026): Self-Employment Shield & SALT Workaround](https://eastcorpcapital.com/llc-vs-s-corp-ny-ptet-tax-calculator-small-business/) | [Markdown Twin](https://eastcorpcapital.com/llc-vs-s-corp-ny-ptet-tax-calculator-small-business/?format=md) - [Capital Gains Tax Calculator (2026): Federal 15%/20%, 3.8% NIIT & NY/NJ/MA State Rates](https://eastcorpcapital.com/capital-gains-tax-calculator-ny-nj-ma-federal-niit/) | [Markdown Twin](https://eastcorpcapital.com/capital-gains-tax-calculator-ny-nj-ma-federal-niit/?format=md) - [401(k) & Roth IRA Calculator (2026 IRS Limits): Pre-Tax vs. Roth Arbitrage for High-Tax States](https://eastcorpcapital.com/401k-roth-ira-calculator-2026-irs-contribution-limits/) | [Markdown Twin](https://eastcorpcapital.com/401k-roth-ira-calculator-2026-irs-contribution-limits/?format=md) - 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[NY-NJ Commuter Tax Credit Calculator (2026): IT-203 Allocation, Convenience Rule & NJ Schedule A](https://eastcorpcapital.com/ny-nj-commuter-tax-credit-calculator-guide/) | [Markdown Twin](https://eastcorpcapital.com/ny-nj-commuter-tax-credit-calculator-guide/?format=md) - [NYC Paycheck & NY State Tax Calculator (2026 Brackets): Federal, NYS & Local Take-Home Pay](https://eastcorpcapital.com/nyc-paycheck-tax-calculator-ny-state-brackets-2026/) | [Markdown Twin](https://eastcorpcapital.com/nyc-paycheck-tax-calculator-ny-state-brackets-2026/?format=md)