Finance

Compare an assumable loan with a new mortgage, including equity gap financing, monthly savings, interest savings, and break-even time.

Compare buying now with waiting using rent, rates, price change, owner costs, and a break-even future mortgage rate.

Estimate taxable backdoor Roth conversion dollars, tax cost, basis left, and possible tax savings from a Dec 31 IRA rollover.

Estimate HSA tax savings by federal, state, and payroll tax, with a 2026 limit check and wage cap adjustment.

Estimate self-employment tax, income tax set-aside, and how much to save yearly, quarterly, monthly, or per $1,000 of profit.

Compare estimated Solo 401(k) and SEP IRA contribution limits by tax year, business type, age, income, and other job deferrals.

Turn a projected federal refund or bill into a per-paycheck withholding change and W-4 Step 4(c) helper.

Use pay-stub numbers to estimate W-4 Step 4(c) or Step 3 changes for the rest of the tax year.

Compare standard vs itemized deductions for 2025 or 2026, with age, dependent, medical, and state tax limit checks.

Estimate 2026 federal bracket room for a Roth conversion and tax on a planned conversion using taxable income.