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GSTMunshi US FINANCIAL HUB•12 Statutory Mathematical Simulators

US Financial Calculators & Decision Simulators

Free tools and clear mathematical insights to help you take control of your money. Zero registration, 100% private client-side calculations.

IRS & CFPB Statutory Code100% Client-Side PrivacyInstant Amortization Schedules
Instant Interactive Sandbox

Try a Quick Loan Calculation Right Now

Adjust loan balance, interest rate, and term to see instant mathematical amortization feedback.

Loan Amount$420,000
$100,000$750,000$1,500,000
Interest Rate (APR)6.50%
3.0%6.5%10.0%
Loan Term
Estimated Monthly Payment (P&I)
$2,655/mo
Total Principal:$420,000
Lifetime Interest:$535,687
15-Yr Interest Saved:$321,808
Full-Spectrum Financial Advisory Suite

Explore All US Financial Calculators

Every calculator is grounded in official IRS regulations, Federal Reserve data, and statutory amortization schedules.

Real Estate & Amortization
Mortgage

30-Year vs 15-Year Fixed Mortgage Calculator

Model monthly principal and interest payments, amortization schedules, and lifetime interest savings between 30-year and 15-year fixed loans.

RESPA 12 U.S.C. § 2601
Head-to-head 30-yr vs 15-yr total lifetime interest amortization
Property tax, home insurance, and private mortgage insurance (PMI) inputs
Interactive extra principal payment payoff accelerator
30-Yr vs 15-Yr Spread$182,400 Saved
Estimated Monthly P&I
$2,528/mo
Vehicles & Tax Credit
Auto

Auto Loan & Clean Vehicle EV Credit Calculator

Calculate monthly auto loan payments with state sales tax, down payments, trade-in equity, and IRS Section 30D $7,500 EV tax credits.

IRC § 30D Clean Vehicle Credit
Instant Point-of-Sale IRC § 30D federal tax credit subtraction
State sales tax, dealer doc fees, and DMV registration estimation
Lease vs purchase break-even financial comparison
Federal EV Tax CreditUp to $7,500
Estimated Car Payment
$666/mo
Savings & APY
Banking

High-Yield Savings (HYSA) & CD Ladder Simulator

Project daily and monthly compound interest growth across top FDIC-insured savings accounts yielding 4.75% to 5.25% APY with zero monthly fees.

FDIC 12 CFR § 330 Protected
Daily compounding vs traditional 0.46% national bank savings comparisons
Multi-year CD ladder schedules locking in peak Federal Reserve yields
FDIC $250k per depositor insurance safety threshold tracking
Top HYSA Benchmark4.75% – 5.25%
5-Year Compound Growth
+$7,845 Yield
Score & Cards
Credit

Credit Card Payoff & 0% APR Runway Calculator

Evaluate minimum payment traps against aggressive payoff strategies, or model 0% intro APR balance transfers to eliminate interest for up to 21 months.

TILA 12 CFR § 1026 Reg Z
Minimum payment trap analyzer revealing true multi-decade loan costs
0% APR balance transfer fee vs interest savings calculator
Credit utilization reduction model to boost FICO scores by 30–60 points
0% APR Runway Duration18 – 21 Months
Estimated Debt-Free Time
38 Months
Debt Relief & Payoff
Debt

Debt Consolidation vs Settlement ROI Analyzer

Compare consolidating multiple high-interest cards into a single 8%–11% fixed personal loan versus debt snowball and debt avalanche payoff methods.

CFPB 12 CFR Part 1006 Rules
Debt snowball (lowest balance first) vs debt avalanche (highest APR first)
Fixed monthly payment simplification replacing 4+ separate statements
Statute of limitations consumer protection rules across all 50 states
Interest Rate Reduction12% – 16% APR Cut
Consolidation Savings
$9,420 Saved
Wealth & Stocks
Retirement

401(k) Retirement & Roth IRA Nest Egg Forecaster

Simulate employer 401(k) match contributions, index fund S&P 500 compounding, and tax-free Roth IRA growth with statutory IRS contribution caps.

IRC § 401(k) / § 408A Rules
100% employer match optimization ensuring zero free money is left behind
Traditional 401(k) pre-tax deduction vs Roth IRA tax-free growth modeling
Required Minimum Distribution (RMD) tax-trap forecaster before age 73/75
2027 401(k) Elective Limit$23,500 Cap
Projected Nest Egg @ 65
$1,684,000
College & PSLF
Education

Student Loan PSLF & Income-Driven Repayment (IDR)

Calculate monthly income-driven repayment caps based on federal poverty guidelines, and estimate total tax-free forgiveness after 120 PSLF payments.

Higher Education Act (HEA) 1965
Public Service Loan Forgiveness (120 qualifying non-profit/government payments)
Income-Driven Repayment (IDR) discretionary income sliding scales
Closed school 100% discharge claim qualification eligibility check
PSLF Discharge Rate100% Tax-Free
Estimated Monthly Payment
$0 – $145/mo
Personal & Business
Loans

Personal Loan Monthly Payment & APR Estimator

Benchmark personal loan interest rates (6.99% to 14.99% APR) for home improvement, debt payoff, or emergency funding with zero prepayment penalties.

TILA 12 CFR § 1026 Reg Z
Soft inquiry pre-qualification models protecting FICO scores
Fixed 24 to 60-month repayment schedules with zero hidden fees
SBA 7(a) small business working capital loan interest calculators
Personal Loan Benchmark6.99% – 14.99%
Fixed Monthly Payment
$631/mo
Government Benefits
Retirement

Social Security COLA & Full Retirement Age (FRA) Estimator

Estimate your monthly Social Security benefit checks based on annual COLA inflation adjustments and compare age 62 early filing versus age 70 delayed credits.

Social Security Act Title II
Full Retirement Age (FRA) determination based on birth year
Age 62 (30% reduction) vs Age 70 (24% increase) break-even age curve
Annual Cost of Living Adjustment (COLA) projection model
Delay to Age 70 Bonus+24% Higher Checks
Estimated Monthly Check
$2,840/mo
Refinance & Rates
Mortgage

Mortgage Refinance Break-Even & Closing Cost Calculator

Determine whether refinancing your mortgage makes financial sense by calculating exact break-even months based on lender closing costs and rate drops.

CFPB Closing Disclosure Rules
Exact closing cost recovery timeline modeling
Cash-out refinance equity and debt payoff consolidation integration
VA IRRRL and FHA streamline refinance fee exemptions
Target Rate Drop0.75% – 1.25%
Break-Even Horizon
18 Months
Veteran Benefits
Loans

VA Disability Benefit & Compensation Pay Chart Estimator

Calculate monthly tax-free VA disability compensation across 10% to 100% ratings with spouse, child, and dependent parent additions.

38 U.S.C. § 1114 Veteran Rates
VA math combined rating calculations (preventing simple percentage addition errors)
Dependent child, college student, and spouse supplemental allowance tiers
Special Monthly Compensation (SMC) statutory eligibility check
100% P&T Monthly Pay$3,875+/mo Tax-Free
Estimated VA Benefit
100% Tax-Exempt
Tax-Free Growth
Retirement

Roth IRA vs Traditional IRA Tax Shelter Calculator

Compare paying taxes today with tax-free qualified withdrawals in retirement versus upfront traditional deductions subject to future income taxes.

IRC § 408A Roth Rules
Tax bracket arbitrage: current marginal tax bracket vs projected retirement rate
Backdoor Roth IRA conversion rules for high-income earners above MAGI caps
Five-year rule tracking for penalty-free earnings withdrawals
Annual IRA Contribution Cap$7,000 / $8,000
Tax-Free Retirement Yield
$640,000 Tax-Free
Mathematical Accuracy & Regulatory Guarantee

Statutory Formulas Verified Against US Regulations

All calculations run 100% locally in your browser. We never capture your income, debts, or assets. Formulas are continuously calibrated against IRS Revenue Procedures, Federal Reserve Board benchmark yields, and CFPB Regulation Z rules.