S&P 5007,357.49 -0.11%NASDAQ25,358.60 -0.89%DOW51,920.62 +0.49%FTSE 10010,529.89 +0.97%NIKKEI72,366.34 +4.61%US10Y4.392% -1.0 bpDXY101.44 -0.17%EUR/USD1.1366 +0.11%GBP/USD1.3188 +0.16%USD/JPY161.79 +0.02%GOLD$4,039.00 +1.22%SILVER$57.91 -0.25%BRENT$75.06 +1.79%BTC$59,734 -2.07%ETH$1,565.20 -3.38%S&P 5007,357.49 -0.11%NASDAQ25,358.60 -0.89%DOW51,920.62 +0.49%FTSE 10010,529.89 +0.97%NIKKEI72,366.34 +4.61%US10Y4.392% -1.0 bpDXY101.44 -0.17%EUR/USD1.1366 +0.11%GBP/USD1.3188 +0.16%USD/JPY161.79 +0.02%GOLD$4,039.00 +1.22%SILVER$57.91 -0.25%BRENT$75.06 +1.79%BTC$59,734 -2.07%ETH$1,565.20 -3.38%
Treasury.to

Metodología y fuentes de datos

Cada calculadora de Treasury.to funciona con datos oficiales de la autoridad emisora y fórmulas financieras estándar. Esta página detalla qué fuente respalda cada calculadora, cuándo fue verificada por última vez y cómo actualizamos los datos cuando cambian las leyes.

§ 01

Datos fiscales por país

US federal income tax (income-tax-us)7 marginal brackets × 4 filing statuses, standard deduction, 2026 inflation adjustmentsIRS Rev. Proc. 2025-32
Vietnam personal income tax (salary-vn)7-bracket PIT schedule, family circumstance deductions, 2026 thresholdsNghị quyết 110/2025/UBTVQH15 (Ủy ban Thường vụ Quốc hội)
Vietnam social insurance (salary-vn)BHXH 8%, BHYT 1.5%, BHTN 1% employee; caps tied to base salaryLuật Bảo hiểm xã hội 2024 + Nghị định hướng dẫn
Brazil IRRF (salary-br)Progressive table, R$5,000 exemption + gradual reduction up to R$7,350, INSS 7.5/9/12/14%Receita Federal, Lei 14.973/2024 + MP 1.171/2024
France income tax (salary-fr)Barème IR 0/11/30/41/45 %, quotient familial, cotisations sociales ~22%, déduction 10%Service-public.fr / loi de finances 2026
Indonesia PPh 21 (salary-id)5/15/25/30/35% brackets, PTKP by status, biaya jabatan 5% (capped), BPJS ~4%DJP / PP 58/2023
Spain IRPF (salary-es)IRPF 19/24/30/37/45/47%, Seguridad Social ~6.50% (capped, incl. MEI), personal & family minimumAgencia Tributaria (AEAT) 2026
§ 02

Datos de mercado

Live market ticker (15 symbols)Indices, FX, commodities, US 10Y yield, crypto — 60-second cacheYahoo Finance chart endpoint (unofficial public API)
§ 03

Fórmulas financieras

FIRE calculator — 4% safe withdrawal rate (fire)60/40 stocks/bonds portfolio supports 4% inflation-adjusted withdrawals for 30 years at high success rateTrinity Study — Cooley, Hubbard, Walz (1998, updated 2011, 2020)
Compound interest (compound-interest)FV = P(1 + r/n)^(n·t) + PMT · [((1 + r/n)^(n·t) − 1) / (r/n)] across 11 compounding frequenciesStandard time-value-of-money closed form
Mortgage P&I + amortization (mortgage)M = P · [r(1+r)^n] / [(1+r)^n − 1] · with month-by-month principal/interest splitStandard mortgage amortization formula
Affordability (affordability)28/36 debt-to-income rule, US convention; ratios applied to gross monthly incomeConsumer Financial Protection Bureau guidance
§ 04

Frecuencia de actualización

Tras cada publicación oficial (IRS Rev. Proc., NQ UBTVQH, Receita Federal, DJP, AEAT, ley de presupuestos), revalidamos en menos de 30 días y actualizamos el sello "Verificado". Los precios del mercado provienen de Yahoo Finance con caché de 60 s — sin valores de respaldo: si la fuente falla, el ticker se oculta.

§ 05

Aviso legal

Treasury.to genera estimaciones para planificación personal. No constituye asesoría fiscal, de inversión ni legal. Consulta a un profesional cualificado en tu jurisdicción antes de tomar decisiones financieras relevantes.